تنبيهات، مراقبات وتحذيرات NOAA SWPC

The National Oceanic and Atmospheric Administration Space Weather Prediction Center (NOAA SWPC) is the official space weather government agency from the United States that provides alerts, watches and warning for space weather disturbances. Below you will find the latest space weather alerts, watches and warnings issued by the NOAA SWPC.

السبت, ٢٩ يونيو ٢٠٢٤

08:59 UTC

Space Weather Message Code: WARK04
Serial Number: 4643
Issue Time: 2024 Jun 29 0859 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4642
Valid From: 2024 Jun 27 2153 UTC
Now Valid Until: 2024 Jun 29 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

الجمعة, ٢٨ يونيو ٢٠٢٤

20:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4642
Issue Time: 2024 Jun 28 2054 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4641
Valid From: 2024 Jun 27 2153 UTC
Now Valid Until: 2024 Jun 29 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

20:54 UTC

Space Weather Message Code: WARK05
Serial Number: 1894
Issue Time: 2024 Jun 28 2054 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1893
Valid From: 2024 Jun 28 0150 UTC
Now Valid Until: 2024 Jun 29 0600 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

19:15 UTC

Space Weather Message Code: ALTK05
Serial Number: 1606
Issue Time: 2024 Jun 28 1915 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 28 1915 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

15:22 UTC

Space Weather Message Code: ALTK05
Serial Number: 1605
Issue Time: 2024 Jun 28 1522 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 28 1520 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

14:18 UTC

Space Weather Message Code: ALTK08
Serial Number: 40
Issue Time: 2024 Jun 28 1418 UTC

ALERT: Geomagnetic K-index of 8, 9-
Threshold Reached: 2024 Jun 28 1415 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G4 - Severe

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
Radio - HF (high frequency) radio propagation sporadic or blacked out.
Aurora - Aurora may be seen as low as Alabama and northern California.

13:35 UTC

Space Weather Message Code: WARK06
Serial Number: 531
Issue Time: 2024 Jun 28 1335 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 530
Valid From: 2024 Jun 28 1135 UTC
Now Valid Until: 2024 Jun 28 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

13:28 UTC

Space Weather Message Code: ALTK07
Serial Number: 156
Issue Time: 2024 Jun 28 1328 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024 Jun 28 1327 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

13:24 UTC

Space Weather Message Code: WARK07
Serial Number: 108
Issue Time: 2024 Jun 28 1324 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2024 Jun 28 1325 UTC
Valid To: 2024 Jun 28 2100 UTC
Warning Condition: Onset
NOAA Scale: G3 or greater

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
Radio - HF (high frequency) radio may be intermittent.
Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.

13:11 UTC

Space Weather Message Code: ALTK06
Serial Number: 577
Issue Time: 2024 Jun 28 1311 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Jun 28 1310 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

12:21 UTC

Space Weather Message Code: ALTK05
Serial Number: 1604
Issue Time: 2024 Jun 28 1221 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 28 1220 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

11:47 UTC

Space Weather Message Code: ALTK06
Serial Number: 576
Issue Time: 2024 Jun 28 1147 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Jun 28 1147 UTC
Synoptic Period: 0900-1200 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

11:36 UTC

Space Weather Message Code: WARK06
Serial Number: 530
Issue Time: 2024 Jun 28 1136 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Jun 28 1135 UTC
Valid To: 2024 Jun 28 1800 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

11:36 UTC

Space Weather Message Code: WARK05
Serial Number: 1893
Issue Time: 2024 Jun 28 1136 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1892
Valid From: 2024 Jun 28 0150 UTC
Now Valid Until: 2024 Jun 28 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

11:36 UTC

Space Weather Message Code: WARK04
Serial Number: 4641
Issue Time: 2024 Jun 28 1136 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4640
Valid From: 2024 Jun 27 2153 UTC
Now Valid Until: 2024 Jun 28 2100 UTC
Warning Condition: persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

11:25 UTC

Space Weather Message Code: ALTK05
Serial Number: 1603
Issue Time: 2024 Jun 28 1125 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 28 1125 UTC
Synoptic Period: 0900-1200 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

09:26 UTC

Space Weather Message Code: WARSUD
Serial Number: 230
Issue Time: 2024 Jun 28 0926 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024 Jun 28 1005 UTC
Valid To: 2024 Jun 28 1035 UTC
IP Shock Passage Observed: 2024 Jun 28 0912 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

05:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4640
Issue Time: 2024 Jun 28 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4639
Valid From: 2024 Jun 27 2153 UTC
Now Valid Until: 2024 Jun 28 1500 UTC
Warning Condition: persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

05:55 UTC

Space Weather Message Code: WARK05
Serial Number: 1892
Issue Time: 2024 Jun 28 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1891
Valid From: 2024 Jun 28 0150 UTC
Now Valid Until: 2024 Jun 28 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

02:21 UTC

Space Weather Message Code: ALTK04
Serial Number: 2456
Issue Time: 2024 Jun 28 0221 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Jun 28 0202 UTC
Synoptic Period: 0000-0300 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

01:51 UTC

Space Weather Message Code: WARK05
Serial Number: 1891
Issue Time: 2024 Jun 28 0151 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Jun 28 0150 UTC
Valid To: 2024 Jun 28 0600 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

الخميس, ٢٧ يونيو ٢٠٢٤

21:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4639
Issue Time: 2024 Jun 27 2154 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 27 2153 UTC
Valid To: 2024 Jun 28 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

الأربعاء, ٢٦ يونيو ٢٠٢٤

11:06 UTC

Space Weather Message Code: WATA20
Serial Number: 1001
Issue Time: 2024 Jun 26 1106 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Jun 27: None (Below G1) Jun 28: G1 (Minor) Jun 29: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

10:32 UTC

Space Weather Message Code: WARK04
Serial Number: 4638
Issue Time: 2024 Jun 26 1032 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 26 1032 UTC
Valid To: 2024 Jun 26 1800 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

الثلاثاء, ٢٥ يونيو ٢٠٢٤

16:28 UTC

Space Weather Message Code: WARK04
Serial Number: 4637
Issue Time: 2024 Jun 25 1628 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 25 1630 UTC
Valid To: 2024 Jun 25 2200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

الأحد, ٢٣ يونيو ٢٠٢٤

20:56 UTC

Space Weather Message Code: WARK04
Serial Number: 4636
Issue Time: 2024 Jun 23 2056 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4635
Valid From: 2024 Jun 23 1030 UTC
Now Valid Until: 2024 Jun 24 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

13:26 UTC

Space Weather Message Code: SUMXM5
Serial Number: 235
Issue Time: 2024 Jun 23 1326 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Jun 23 1251 UTC
Maximum Time: 2024 Jun 23 1301 UTC
End Time: 2024 Jun 23 1311 UTC
X-ray Class: M9.3
Location: S18E70
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

13:02 UTC

Space Weather Message Code: ALTXMF
Serial Number: 399
Issue Time: 2024 Jun 23 1302 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 23 1257 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

10:28 UTC

Space Weather Message Code: WARK04
Serial Number: 4635
Issue Time: 2024 Jun 23 1028 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 23 1030 UTC
Valid To: 2024 Jun 23 2100 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

السبت, ٢٢ يونيو ٢٠٢٤

00:04 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1311
Issue Time: 2024 Jun 22 0004 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Jun 21 2340 UTC
Estimated Velocity: 590 km/s



Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

الخميس, ٢٠ يونيو ٢٠٢٤

23:42 UTC

Space Weather Message Code: SUMXM5
Serial Number: 234
Issue Time: 2024 Jun 20 2342 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Jun 20 2300 UTC
Maximum Time: 2024 Jun 20 2316 UTC
End Time: 2024 Jun 20 2320 UTC
X-ray Class: M5.7
Location: S16E41
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

23:20 UTC

Space Weather Message Code: ALTXMF
Serial Number: 398
Issue Time: 2024 Jun 20 2320 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 20 2316 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

الثلاثاء, ١٨ يونيو ٢٠٢٤

04:57 UTC

Space Weather Message Code: WARK04
Serial Number: 4634
Issue Time: 2024 Jun 18 0457 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 18 0500 UTC
Valid To: 2024 Jun 18 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

الاثنين, ١٧ يونيو ٢٠٢٤

16:59 UTC

Space Weather Message Code: WARK04
Serial Number: 4633
Issue Time: 2024 Jun 17 1659 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 17 1700 UTC
Valid To: 2024 Jun 17 2200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

11:50 UTC

Space Weather Message Code: SUM10R
Serial Number: 811
Issue Time: 2024 Jun 17 1150 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Jun 17 1044 UTC
Maximum Time: 2024 Jun 17 1044 UTC
End Time: 2024 Jun 17 1044 UTC
Duration: 1 minutes
Peak Flux: 290 sfu
Latest Penticton Noon Flux: 167 sfu



Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

11:33 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1310
Issue Time: 2024 Jun 17 1133 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Jun 17 1100 UTC
Estimated Velocity: 411 km/s



Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

الأحد, ١٦ يونيو ٢٠٢٤

20:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4632
Issue Time: 2024 Jun 16 2055 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4631
Valid From: 2024 Jun 16 1200 UTC
Now Valid Until: 2024 Jun 17 0300 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

19:26 UTC

Space Weather Message Code: ALTK04
Serial Number: 2455
Issue Time: 2024 Jun 16 1926 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Jun 16 1926 UTC
Synoptic Period: 1800-2100 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

12:00 UTC

Space Weather Message Code: WARK04
Serial Number: 4631
Issue Time: 2024 Jun 16 1200 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 16 1200 UTC
Valid To: 2024 Jun 16 2100 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

السبت, ١٥ يونيو ٢٠٢٤

20:52 UTC

Space Weather Message Code: WARK04
Serial Number: 4630
Issue Time: 2024 Jun 15 2052 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4629
Valid From: 2024 Jun 15 1200 UTC
Now Valid Until: 2024 Jun 16 0900 UTC
Warning Condition: persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

14:10 UTC

Space Weather Message Code: WARK06
Serial Number: 529
Issue Time: 2024 Jun 15 1410 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Jun 15 1409 UTC
Valid To: 2024 Jun 15 2100 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

13:30 UTC

Space Weather Message Code: ALTK05
Serial Number: 1602
Issue Time: 2024 Jun 15 1330 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 15 1329 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

13:23 UTC

Space Weather Message Code: WARK05
Serial Number: 1890
Issue Time: 2024 Jun 15 1323 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Jun 15 1323 UTC
Valid To: 2024 Jun 15 2100 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

13:10 UTC

Space Weather Message Code: ALTK04
Serial Number: 2454
Issue Time: 2024 Jun 15 1310 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Jun 15 1310 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

12:16 UTC

Space Weather Message Code: SUMSUD
Serial Number: 274
Issue Time: 2024 Jun 15 1216 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024 Jun 15 1157 UTC
Deviation: 27 nT
Station: HAD

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

11:48 UTC

Space Weather Message Code: WARK04
Serial Number: 4629
Issue Time: 2024 Jun 15 1148 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 15 1200 UTC
Valid To: 2024 Jun 15 2100 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

11:11 UTC

Space Weather Message Code: WARSUD
Serial Number: 229
Issue Time: 2024 Jun 15 1111 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024 Jun 15 1145 UTC
Valid To: 2024 Jun 15 1215 UTC
IP Shock Passage Observed: 2024 Jun 15 1103 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

الأربعاء, ١٢ يونيو ٢٠٢٤

23:56 UTC

Space Weather Message Code: WARPX1
Serial Number: 568
Issue Time: 2024 Jun 12 2356 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 567
Valid From: 2024 Jun 12 0310 UTC
Now Valid Until: 2024 Jun 13 1500 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

Comment: 10 MeV proton flux is fluctuating close to the 10 pfu (S1/Minor) threshold.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

14:10 UTC

Space Weather Message Code: WARPX1
Serial Number: 567
Issue Time: 2024 Jun 12 1410 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 566
Valid From: 2024 Jun 12 0310 UTC
Now Valid Until: 2024 Jun 12 2359 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

03:08 UTC

Space Weather Message Code: WARPX1
Serial Number: 566
Issue Time: 2024 Jun 12 0308 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024 Jun 12 0310 UTC
Valid To: 2024 Jun 12 1500 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

الثلاثاء, ١١ يونيو ٢٠٢٤

23:11 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1309
Issue Time: 2024 Jun 11 2311 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Jun 11 2251 UTC
Estimated Velocity: 528 km/s



Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

23:10 UTC

Space Weather Message Code: ALTTP4
Serial Number: 651
Issue Time: 2024 Jun 11 2310 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 Jun 11 1638 UTC



Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

02:39 UTC

Space Weather Message Code: WARK04
Serial Number: 4628
Issue Time: 2024 Jun 11 0239 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4627
Valid From: 2024 Jun 10 1705 UTC
Now Valid Until: 2024 Jun 11 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

الاثنين, ١٠ يونيو ٢٠٢٤

21:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4627
Issue Time: 2024 Jun 10 2155 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4626
Valid From: 2024 Jun 10 1705 UTC
Now Valid Until: 2024 Jun 11 0300 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

19:38 UTC

Space Weather Message Code: SUMXM5
Serial Number: 233
Issue Time: 2024 Jun 10 1938 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Jun 10 1811 UTC
Maximum Time: 2024 Jun 10 1840 UTC
End Time: 2024 Jun 10 1918 UTC
X-ray Class: M9.5
Location: S19W89
NOAA Scale: R2 - Moderate

Comment: Region 3697

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

19:34 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1308
Issue Time: 2024 Jun 10 1934 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Jun 10 1829 UTC
Estimated Velocity: 754 km/s



Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

18:34 UTC

Space Weather Message Code: ALTXMF
Serial Number: 397
Issue Time: 2024 Jun 10 1834 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 10 1828 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

17:46 UTC

Space Weather Message Code: ALTK04
Serial Number: 2453
Issue Time: 2024 Jun 10 1746 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Jun 10 1746 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

17:45 UTC

Space Weather Message Code: SUMSUD
Serial Number: 273
Issue Time: 2024 Jun 10 1745 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024 Jun 10 1725 UTC
Deviation: 52 nT
Station: NGK

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

16:53 UTC

Space Weather Message Code: WARK04
Serial Number: 4626
Issue Time: 2024 Jun 10 1653 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 10 1705 UTC
Valid To: 2024 Jun 10 2200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

16:51 UTC

Space Weather Message Code: WARSUD
Serial Number: 228
Issue Time: 2024 Jun 10 1651 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024 Jun 10 1705 UTC
Valid To: 2024 Jun 10 1805 UTC
IP Shock Passage Observed: 2024 Jun 10 1634 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

11:34 UTC

Space Weather Message Code: SUMX01
Serial Number: 163
Issue Time: 2024 Jun 10 1134 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2024 Jun 10 1018 UTC
Maximum Time: 2024 Jun 10 1108 UTC
End Time: 2024 Jun 10 1118 UTC
X-ray Class: X1.5
Optical Class: sf
Location: S19W90
NOAA Scale: R3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

10:57 UTC

Space Weather Message Code: ALTXMF
Serial Number: 396
Issue Time: 2024 Jun 10 1057 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 10 1053 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

05:35 UTC

Space Weather Message Code: SUMPX1
Serial Number: 113
Issue Time: 2024 Jun 10 0535 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Jun 08 0255 UTC
Maximum Time: 2024 Jun 08 0800 UTC
End Time: 2024 Jun 09 2140 UTC
Maximum 10MeV Flux: 1030 pfu
NOAA Scale: S3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

الأحد, ٩ يونيو ٢٠٢٤

23:37 UTC

Space Weather Message Code: WARPX1
Serial Number: 565
Issue Time: 2024 Jun 09 2337 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 564
Valid From: 2024 Jun 08 0242 UTC
Now Valid Until: 2024 Jun 10 1200 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

01:22 UTC

Space Weather Message Code: SUMPX2
Serial Number: 52
Issue Time: 2024 Jun 09 0122 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Jun 08 0455 UTC
Maximum Time: 2024 Jun 08 0800 UTC
End Time: 2024 Jun 08 2255 UTC
Maximum 10MeV Flux: 1030 pfu
NOAA Scale: S3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

01:22 UTC

Space Weather Message Code: SUMPC0
Serial Number: 34
Issue Time: 2024 Jun 09 0122 UTC

SUMMARY: Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2024 Jun 08 0225 UTC
Maximum Time: 2024 Jun 08 0625 UTC
End Time: 2024 Jun 08 1455 UTC
Maximum 100MeV Flux: 8 pfu

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

السبت, ٨ يونيو ٢٠٢٤

23:55 UTC

Space Weather Message Code: WARPX1
Serial Number: 564
Issue Time: 2024 Jun 08 2355 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 563
Valid From: 2024 Jun 08 0242 UTC
Now Valid Until: 2024 Jun 09 2359 UTC
Warning Condition: Persistence
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

20:07 UTC

Space Weather Message Code: SUMPX3
Serial Number: 19
Issue Time: 2024 Jun 08 2007 UTC

SUMMARY: Proton Event 10MeV Integral Flux exceeded 1000pfu
Begin Time: 2024 Jun 08 0800 UTC
Maximum Time: 2024 Jun 08 0800 UTC
End Time: 2024 Jun 08 0805 UTC
Maximum 10MeV Flux: 1030 pfu
NOAA Scale: S3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

17:58 UTC

Space Weather Message Code: WARPC0
Serial Number: 105
Issue Time: 2024 Jun 08 1758 UTC

EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected
Extension to Serial Number: 104
Valid From: 2024 Jun 08 0225 UTC
Now Valid Until: 2024 Jun 08 2359 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

11:55 UTC

Space Weather Message Code: WARPC0
Serial Number: 104
Issue Time: 2024 Jun 08 1155 UTC

EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected
Extension to Serial Number: 103
Valid From: 2024 Jun 08 0225 UTC
Now Valid Until: 2024 Jun 08 1800 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

10:25 UTC

Space Weather Message Code: WATA30
Serial Number: 234
Issue Time: 2024 Jun 08 1025 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
Jun 09: None (Below G1) Jun 10: G2 (Moderate) Jun 11: G1 (Minor)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

08:13 UTC

Space Weather Message Code: ALTPX3
Serial Number: 30
Issue Time: 2024 Jun 08 0813 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 1000pfu
Begin Time: 2024 Jun 08 0800 UTC
NOAA Scale: S3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience increasing radiation exposures. Astronauts on EVA (extra-vehicular activity) are exposed to elevated radiation levels.
Spacecraft - Single-event upsets to satellite operations, noise in imaging systems, and slight reduction of efficiency in solar panels are likely.
Radio - Degraded or episodically blacked-out polar HF (high frequency) radio propagation.

05:03 UTC

Space Weather Message Code: ALTPX2
Serial Number: 73
Issue Time: 2024 Jun 08 0503 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 100pfu
Begin Time: 2024 Jun 08 0500 UTC
NOAA Scale: S2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radiation - Passengers and crew in high latitude, high altitude flights may experience small, increased radiation exposures.
Spacecraft - Infrequent single-event upsets to satellites are possible.
Radio - Small effects on polar HF (high frequency) propagation resulting in fades at lower frequencies.

03:03 UTC

Space Weather Message Code: ALTPX1
Serial Number: 348
Issue Time: 2024 Jun 08 0303 UTC

ALERT: Proton Event 10MeV Integral Flux exceeded 10pfu
Begin Time: 2024 Jun 08 0255 UTC
NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

02:43 UTC

Space Weather Message Code: WARPX1
Serial Number: 563
Issue Time: 2024 Jun 08 0243 UTC

WARNING: Proton 10MeV Integral Flux above 10pfu expected
Valid From: 2024 Jun 08 0242 UTC
Valid To: 2024 Jun 08 2359 UTC
Warning Condition: Onset
Predicted NOAA Scale: S1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

02:37 UTC

Space Weather Message Code: SUMXM5
Serial Number: 232
Issue Time: 2024 Jun 08 0237 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Jun 08 0123 UTC
Maximum Time: 2024 Jun 08 0149 UTC
End Time: 2024 Jun 08 0219 UTC
X-ray Class: M9.6
Location: S18W69
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

02:32 UTC

Space Weather Message Code: ALTPC0
Serial Number: 50
Issue Time: 2024 Jun 08 0232 UTC

ALERT: Proton Event 100MeV Integral Flux exceeded 1pfu
Begin Time: 2024 Jun 08 0225 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

02:22 UTC

Space Weather Message Code: WARPC0
Serial Number: 103
Issue Time: 2024 Jun 08 0222 UTC

WARNING: Proton 100MeV Integral Flux above 1pfu expected
Valid From: 2024 Jun 08 0225 UTC
Valid To: 2024 Jun 08 1200 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.

02:19 UTC

Space Weather Message Code: ALTTP4
Serial Number: 650
Issue Time: 2024 Jun 08 0219 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 Jun 08 0157 UTC



Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

02:04 UTC

Space Weather Message Code: WARK04
Serial Number: 4625
Issue Time: 2024 Jun 08 0204 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4624
Valid From: 2024 Jun 07 1148 UTC
Now Valid Until: 2024 Jun 08 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

02:00 UTC

Space Weather Message Code: SUM10R
Serial Number: 810
Issue Time: 2024 Jun 08 0200 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Jun 08 0126 UTC
Maximum Time: 2024 Jun 08 0130 UTC
End Time: 2024 Jun 08 0146 UTC
Duration: 20 minutes
Peak Flux: 370 sfu
Latest Penticton Noon Flux: 184 sfu



Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

01:59 UTC

Space Weather Message Code: WARK05
Serial Number: 1889
Issue Time: 2024 Jun 08 0159 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Jun 08 0200 UTC
Valid To: 2024 Jun 08 1200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

01:54 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1307
Issue Time: 2024 Jun 08 0154 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Jun 08 0128 UTC
Estimated Velocity: 894 km/s



Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

01:37 UTC

Space Weather Message Code: ALTXMF
Serial Number: 395
Issue Time: 2024 Jun 08 0137 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 08 0135 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

الجمعة, ٧ يونيو ٢٠٢٤

23:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4624
Issue Time: 2024 Jun 07 2354 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4623
Valid From: 2024 Jun 07 1148 UTC
Now Valid Until: 2024 Jun 08 0900 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

18:01 UTC

Space Weather Message Code: ALTK06
Serial Number: 575
Issue Time: 2024 Jun 07 1801 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Jun 07 1759 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

17:17 UTC

Space Weather Message Code: WARK05
Serial Number: 1888
Issue Time: 2024 Jun 07 1717 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1887
Valid From: 2024 Jun 07 1342 UTC
Now Valid Until: 2024 Jun 07 2359 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

17:17 UTC

Space Weather Message Code: WARK06
Serial Number: 528
Issue Time: 2024 Jun 07 1717 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 527
Valid From: 2024 Jun 07 1502 UTC
Now Valid Until: 2024 Jun 07 2100 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

15:21 UTC

Space Weather Message Code: ALTK05
Serial Number: 1601
Issue Time: 2024 Jun 07 1521 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 07 1517 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

15:03 UTC

Space Weather Message Code: ALTK06
Serial Number: 574
Issue Time: 2024 Jun 07 1503 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Jun 07 1456 UTC
Synoptic Period: 1500-1800 UTC

Active Warning: Yes
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

15:02 UTC

Space Weather Message Code: WARK06
Serial Number: 527
Issue Time: 2024 Jun 07 1502 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Jun 07 1502 UTC
Valid To: 2024 Jun 07 1800 UTC
Warning Condition: Onset
NOAA Scale: G2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.
Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.
Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.
Radio - HF (high frequency) radio propagation can fade at higher latitudes.
Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state.

14:24 UTC

Space Weather Message Code: ALTK05
Serial Number: 1600
Issue Time: 2024 Jun 07 1424 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 07 1411 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

13:42 UTC

Space Weather Message Code: WARK05
Serial Number: 1887
Issue Time: 2024 Jun 07 1342 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Jun 07 1342 UTC
Valid To: 2024 Jun 07 1800 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

13:41 UTC

Space Weather Message Code: ALTK04
Serial Number: 2452
Issue Time: 2024 Jun 07 1341 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Jun 07 1338 UTC
Synoptic Period: 1200-1500 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

11:49 UTC

Space Weather Message Code: WARK04
Serial Number: 4623
Issue Time: 2024 Jun 07 1149 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 07 1148 UTC
Valid To: 2024 Jun 07 2359 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

الخميس, ٦ يونيو ٢٠٢٤

15:34 UTC

Space Weather Message Code: SUMXM5
Serial Number: 231
Issue Time: 2024 Jun 06 1534 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Jun 06 1450 UTC
Maximum Time: 2024 Jun 06 1506 UTC
End Time: 2024 Jun 06 1522 UTC
X-ray Class: M6.1
Optical Class: 2b
Location: S17W40
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

15:12 UTC

Space Weather Message Code: SUM10R
Serial Number: 809
Issue Time: 2024 Jun 06 1512 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Jun 06 1500 UTC
Maximum Time: 2024 Jun 06 1501 UTC
End Time: 2024 Jun 06 1502 UTC
Duration: 2 minutes
Peak Flux: 350 sfu
Latest Penticton Noon Flux: 195 sfu



Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

15:05 UTC

Space Weather Message Code: ALTXMF
Serial Number: 394
Issue Time: 2024 Jun 06 1505 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 06 1503 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

الثلاثاء, ٤ يونيو ٢٠٢٤

05:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4622
Issue Time: 2024 Jun 04 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4621
Valid From: 2024 Jun 03 2151 UTC
Now Valid Until: 2024 Jun 04 1500 UTC
Warning Condition: Persistence

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

00:10 UTC

Space Weather Message Code: ALTK05
Serial Number: 1599
Issue Time: 2024 Jun 04 0010 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Jun 03 2359 UTC
Synoptic Period: 2100-0000 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

الاثنين, ٣ يونيو ٢٠٢٤

23:10 UTC

Space Weather Message Code: SUMSUD
Serial Number: 272
Issue Time: 2024 Jun 03 2310 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024 Jun 03 2300 UTC
Deviation: 61 nT
Station: Bou

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

23:08 UTC

Space Weather Message Code: ALTK04
Serial Number: 2451
Issue Time: 2024 Jun 03 2308 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Jun 03 2308 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

22:31 UTC

Space Weather Message Code: WARSUD
Serial Number: 227
Issue Time: 2024 Jun 03 2231 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024 Jun 03 2230 UTC
Valid To: 2024 Jun 03 2330 UTC
IP Shock Passage Observed: 2024 Jun 03 2151 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

22:30 UTC

Space Weather Message Code: WARSUD
Serial Number: 226
Issue Time: 2024 Jun 03 2230 UTC

CANCEL WARNING: Geomagnetic Sudden Impulse expected
Cancel Serial Number: 225
Original Issue Time: 2024 Jun 03 2204 UTC

Comment: New Warning being issued to correct times.

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

22:06 UTC

Space Weather Message Code: WARK05
Serial Number: 1886
Issue Time: 2024 Jun 03 2206 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Jun 03 2210 UTC
Valid To: 2024 Jun 04 0300 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

22:04 UTC

Space Weather Message Code: WARSUD
Serial Number: 225
Issue Time: 2024 Jun 03 2204 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024 Jun 03 2202 UTC
Valid To: 2024 Jun 03 2230 UTC
IP Shock Passage Observed: 2024 Jun 03 2330 UTC

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

21:52 UTC

Space Weather Message Code: WARK04
Serial Number: 4621
Issue Time: 2024 Jun 03 2152 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Jun 03 2151 UTC
Valid To: 2024 Jun 04 0600 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

12:09 UTC

Space Weather Message Code: SUM10R
Serial Number: 808
Issue Time: 2024 Jun 03 1209 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Jun 03 1152 UTC
Maximum Time: 2024 Jun 03 1152 UTC
End Time: 2024 Jun 03 1153 UTC
Duration: 1 minutes
Peak Flux: 910 sfu
Latest Penticton Noon Flux: 180 sfu



Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

الأحد, ٢ يونيو ٢٠٢٤

20:10 UTC

Space Weather Message Code: WATA20
Serial Number: 1000
Issue Time: 2024 Jun 02 2010 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Jun 03: None (Below G1) Jun 04: G1 (Minor) Jun 05: None (Below G1)

THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

السبت, ١ يونيو ٢٠٢٤

21:04 UTC

Space Weather Message Code: SUMXM5
Serial Number: 230
Issue Time: 2024 Jun 01 2104 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Jun 01 1903 UTC
Maximum Time: 2024 Jun 01 1939 UTC
End Time: 2024 Jun 01 2028 UTC
X-ray Class: M7.3
Optical Class: sf
Location: S18E23
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.

19:49 UTC

Space Weather Message Code: ALTTP4
Serial Number: 649
Issue Time: 2024 Jun 01 1949 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 Jun 01 1927 UTC



Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.

19:34 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1306
Issue Time: 2024 Jun 01 1934 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Jun 01 1920 UTC
Estimated Velocity: 681 km/s



Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.

19:26 UTC

Space Weather Message Code: ALTXMF
Serial Number: 393
Issue Time: 2024 Jun 01 1926 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 01 1924 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

19:02 UTC

Space Weather Message Code: SUMX01
Serial Number: 162
Issue Time: 2024 Jun 01 1902 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2024 Jun 01 1824 UTC
Maximum Time: 2024 Jun 01 1836 UTC
End Time: 2024 Jun 01 1850 UTC
X-ray Class: X1.0
Optical Class: 2b
Location: S16E26
NOAA Scale: R3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

18:36 UTC

Space Weather Message Code: ALTXMF
Serial Number: 392
Issue Time: 2024 Jun 01 1836 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 01 1834 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

09:15 UTC

Space Weather Message Code: SUMX01
Serial Number: 161
Issue Time: 2024 Jun 01 0915 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2024 Jun 01 0826 UTC
Maximum Time: 2024 Jun 01 0848 UTC
End Time: 2024 Jun 01 0858 UTC
X-ray Class: X1.4
Location: S18E30
NOAA Scale: R3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

09:07 UTC

Space Weather Message Code: SUM10R
Serial Number: 807
Issue Time: 2024 Jun 01 0907 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Jun 01 0845 UTC
Maximum Time: 2024 Jun 01 0845 UTC
End Time: 2024 Jun 01 0846 UTC
Duration: 1 minutes
Peak Flux: 210 sfu
Latest Penticton Noon Flux: 179 sfu



Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.

08:50 UTC

Space Weather Message Code: ALTXMF
Serial Number: 391
Issue Time: 2024 Jun 01 0850 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Jun 01 0849 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

الجمعة, ٣١ مايو ٢٠٢٤

22:21 UTC

Space Weather Message Code: SUMX01
Serial Number: 160
Issue Time: 2024 May 31 2221 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2024 May 31 2152 UTC
Maximum Time: 2024 May 31 2203 UTC
End Time: 2024 May 31 2209 UTC
X-ray Class: X1.1
Optical Class: 2b
Location: S17E34
NOAA Scale: R3 - Strong

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

22:03 UTC

Space Weather Message Code: ALTXMF
Serial Number: 390
Issue Time: 2024 May 31 2203 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 May 31 2201 UTC
NOAA Scale: R2 - Moderate

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.

05:19 UTC

Space Weather Message Code: ALTK05
Serial Number: 1598
Issue Time: 2024 May 31 0519 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 May 31 0518 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

05:00 UTC

Space Weather Message Code: WARK05
Serial Number: 1885
Issue Time: 2024 May 31 0500 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 May 31 0500 UTC
Valid To: 2024 May 31 1200 UTC
Warning Condition: Onset
NOAA Scale: G1 - Minor

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Spacecraft - Minor impact on satellite operations possible.
Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.

04:46 UTC

Space Weather Message Code: ALTK04
Serial Number: 2450
Issue Time: 2024 May 31 0446 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 May 31 0445 UTC
Synoptic Period: 0300-0600 UTC

Active Warning: Yes

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.

02:33 UTC

Space Weather Message Code: WARK04
Serial Number: 4620
Issue Time: 2024 May 31 0233 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 May 31 0235 UTC
Valid To: 2024 May 31 1500 UTC
Warning Condition: Onset

NOAA Space Weather Scale descriptions can be found at
www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
Induced Currents - Weak power grid fluctuations can occur.
Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.