Предупреждения NOAA SWPC

Национальный центр прогнозирования метеорологической погоды (NOAA SWPC) является официальным агентством по космической погоде США, которое оперативно осуществляет оповещения о ее изменениях. Ниже вы найдете последние сообщения о погоде в космосе, прогнозы, временные интервалы и предупреждения, от NOAA SWPC.

воскресенье, 5 мая 2024

03:20 UTC

Space Weather Message Code: SUM10R
Serial Number: 793
Issue Time: 2024 May 05 0320 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 May 05 0259 UTC
Maximum Time: 2024 May 05 0300 UTC
End Time: 2024 May 05 0301 UTC
Duration: 3 minutes
Peak Flux: 280 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.

01:53 UTC

Space Weather Message Code: SUMXM5
Serial Number: 218
Issue Time: 2024 May 05 0153 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 May 05 0115 UTC
Maximum Time: 2024 May 05 0127 UTC
End Time: 2024 May 05 0143 UTC
X-ray Class: M8.4
Optical Class: 1b
Location: N25W19
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.

01:25 UTC

Space Weather Message Code: ALTXMF
Serial Number: 360
Issue Time: 2024 May 05 0125 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 May 05 0123 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.

00:11 UTC

Space Weather Message Code: SUMXM5
Serial Number: 217
Issue Time: 2024 May 05 0011 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 May 04 2328 UTC
Maximum Time: 2024 May 04 2348 UTC
End Time: 2024 May 04 2355 UTC
X-ray Class: M9.0
Optical Class: 1b
Location: N26W10
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.

суббота, 4 мая 2024

23:42 UTC

Space Weather Message Code: ALTXMF
Serial Number: 359
Issue Time: 2024 May 04 2342 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 May 04 2339 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.

06:56 UTC

Space Weather Message Code: ALTTP4
Serial Number: 633
Issue Time: 2024 May 04 0656 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 May 04 0638 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.

06:55 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1290
Issue Time: 2024 May 04 0655 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 May 04 0625 UTC
Estimated Velocity: 950 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.

06:42 UTC

Space Weather Message Code: SUMXM5
Serial Number: 216
Issue Time: 2024 May 04 0642 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 May 04 0602 UTC
Maximum Time: 2024 May 04 0619 UTC
End Time: 2024 May 04 0630 UTC
X-ray Class: M9.1
Optical Class: 1b
Location: N26W07
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.

06:38 UTC

Space Weather Message Code: SUM10R
Serial Number: 792
Issue Time: 2024 May 04 0638 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 May 04 0613 UTC
Maximum Time: 2024 May 04 0614 UTC
End Time: 2024 May 04 0616 UTC
Duration: 3 minutes
Peak Flux: 280 sfu
Latest Penticton Noon Flux: 156 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.

06:18 UTC

Space Weather Message Code: ALTXMF
Serial Number: 358
Issue Time: 2024 May 04 0618 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 May 04 0616 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.

пятница, 3 мая 2024

23:59 UTC

Space Weather Message Code: ALTTP4
Serial Number: 632
Issue Time: 2024 May 03 2359 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 May 03 2035 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.

21:02 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1289
Issue Time: 2024 May 03 2102 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 May 03 2023 UTC
Estimated Velocity: 453 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.

20:59 UTC

Space Weather Message Code: WATA30
Serial Number: 230
Issue Time: 2024 May 03 2059 UTC

WATCH: Geomagnetic Storm Category G2 Predicted

Highest Storm Level Predicted by Day:
May 04: None (Below G1) May 05: G1 (Minor) May 06: G2 (Moderate)

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.

02:51 UTC

Space Weather Message Code: ALTTP4
Serial Number: 631
Issue Time: 2024 May 03 0251 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 May 03 0232 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: SUM10R
Serial Number: 791
Issue Time: 2024 May 03 0239 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 May 03 0219 UTC
Maximum Time: 2024 May 03 0219 UTC
End Time: 2024 May 03 0223 UTC
Duration: 4 minutes
Peak Flux: 660 sfu
Latest Penticton Noon Flux: 142 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.

02:38 UTC

Space Weather Message Code: SUMX01
Serial Number: 141
Issue Time: 2024 May 03 0238 UTC

SUMMARY: X-ray Event exceeded X1
Begin Time: 2024 May 03 0211 UTC
Maximum Time: 2024 May 03 0222 UTC
End Time: 2024 May 03 0227 UTC
X-ray Class: X1.6
Optical Class: 1b
Location: N23E06
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.

02:36 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1288
Issue Time: 2024 May 03 0236 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 May 03 0220 UTC
Estimated Velocity: 959 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.

02:22 UTC

Space Weather Message Code: ALTXMF
Serial Number: 357
Issue Time: 2024 May 03 0222 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 May 03 0219 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.

четверг, 2 мая 2024

21:00 UTC

Space Weather Message Code: ALTK07
Serial Number: 142
Issue Time: 2024 May 02 2100 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024 May 02 2059 UTC
Synoptic Period: 1800-2100 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.

20:56 UTC

Space Weather Message Code: WARK04
Serial Number: 4602
Issue Time: 2024 May 02 2056 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4601
Valid From: 2024 May 02 1335 UTC
Now Valid Until: 2024 May 03 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.

20:56 UTC

Space Weather Message Code: WARK06
Serial Number: 517
Issue Time: 2024 May 02 2056 UTC

EXTENDED WARNING: Geomagnetic K-Index of 6 expected
Extension to Serial Number: 516
Valid From: 2024 May 02 1450 UTC
Now Valid Until: 2024 May 03 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 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.

20:56 UTC

Space Weather Message Code: WARK05
Serial Number: 1871
Issue Time: 2024 May 02 2056 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1870
Valid From: 2024 May 02 1355 UTC
Now Valid Until: 2024 May 03 1200 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.

20:56 UTC

Space Weather Message Code: WARK07
Serial Number: 102
Issue Time: 2024 May 02 2056 UTC

EXTENDED WARNING: Geomagnetic K-index of 7 or greater expected
Extension to Serial Number: 101
Valid From: 2024 May 02 1640 UTC
Now Valid Until: 2024 May 03 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 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.

19:17 UTC

Space Weather Message Code: ALTK06
Serial Number: 555
Issue Time: 2024 May 02 1917 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 May 02 1917 UTC
Synoptic Period: 1800-2100 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.

19:04 UTC

Space Weather Message Code: ALTK05
Serial Number: 1574
Issue Time: 2024 May 02 1904 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 May 02 1904 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.

18:03 UTC

Space Weather Message Code: ALTK07
Serial Number: 141
Issue Time: 2024 May 02 1803 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024 May 02 1759 UTC
Synoptic Period: 1500-1800 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.

16:39 UTC

Space Weather Message Code: WARK07
Serial Number: 101
Issue Time: 2024 May 02 1639 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2024 May 02 1640 UTC
Valid To: 2024 May 02 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.

16:24 UTC

Space Weather Message Code: ALTK06
Serial Number: 554
Issue Time: 2024 May 02 1624 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 May 02 1624 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.

16:05 UTC

Space Weather Message Code: ALTK05
Serial Number: 1573
Issue Time: 2024 May 02 1605 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 May 02 1605 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.

14:50 UTC

Space Weather Message Code: ALTK05
Serial Number: 1572
Issue Time: 2024 May 02 1450 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 May 02 1448 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.

14:50 UTC

Space Weather Message Code: WARK06
Serial Number: 516
Issue Time: 2024 May 02 1450 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 May 02 1450 UTC
Valid To: 2024 May 02 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.

14:22 UTC

Space Weather Message Code: ALTK04
Serial Number: 2444
Issue Time: 2024 May 02 1422 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 May 02 1422 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.

14:22 UTC

Space Weather Message Code: SUMSUD
Serial Number: 268
Issue Time: 2024 May 02 1422 UTC

SUMMARY: Geomagnetic Sudden Impulse
Observed: 2024 May 02 1412 UTC
Deviation: 29 nT
Station: HAD

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

13:51 UTC

Space Weather Message Code: WARK05
Serial Number: 1870
Issue Time: 2024 May 02 1351 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 May 02 1355 UTC
Valid To: 2024 May 02 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.

13:32 UTC

Space Weather Message Code: WARK04
Serial Number: 4601
Issue Time: 2024 May 02 1332 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 May 02 1335 UTC
Valid To: 2024 May 03 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.

13:29 UTC

Space Weather Message Code: WARSUD
Serial Number: 221
Issue Time: 2024 May 02 1329 UTC

WARNING: Geomagnetic Sudden Impulse expected
Valid From: 2024 May 02 1404 UTC
Valid To: 2024 May 02 1434 UTC
IP Shock Passage Observed: 2024 May 02 1317 UTC

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

среда, 1 мая 2024

02:26 UTC

Space Weather Message Code: WARK04
Serial Number: 4600
Issue Time: 2024 May 01 0226 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4599
Valid From: 2024 Apr 30 2242 UTC
Now Valid Until: 2024 May 01 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.

00:04 UTC

Space Weather Message Code: SUMXM5
Serial Number: 215
Issue Time: 2024 May 01 0004 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Apr 30 2323 UTC
Maximum Time: 2024 Apr 30 2346 UTC
End Time: 2024 Apr 30 2358 UTC
X-ray Class: M9.5
Optical Class: 2b
Location: S07W63
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.

вторник, 30 апреля 2024

23:55 UTC

Space Weather Message Code: SUM10R
Serial Number: 790
Issue Time: 2024 Apr 30 2355 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Apr 30 2342 UTC
Maximum Time: 2024 Apr 30 2343 UTC
End Time: 2024 Apr 30 2345 UTC
Duration: 3 minutes
Peak Flux: 270 sfu
Latest Penticton Noon Flux: 130 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.

23:49 UTC

Space Weather Message Code: ALTXMF
Serial Number: 356
Issue Time: 2024 Apr 30 2349 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Apr 30 2343 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.

23:33 UTC

Space Weather Message Code: WARK05
Serial Number: 1869
Issue Time: 2024 Apr 30 2333 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 30 2332 UTC
Valid To: 2024 May 01 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.

23:16 UTC

Space Weather Message Code: ALTK04
Serial Number: 2443
Issue Time: 2024 Apr 30 2316 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 30 2315 UTC
Synoptic Period: 2100-2400 UTC

Active Warning: Yes

Comment: Conditions were likely first reached at approximately 30/1955 UTC. However, a major network outage prevented alert issuance.

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.

22:43 UTC

Space Weather Message Code: WARK04
Serial Number: 4599
Issue Time: 2024 Apr 30 2243 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 30 2242 UTC
Valid To: 2024 May 01 0300 UTC
Warning Condition: Persistence

Comment: Conditions were likely first reached at approximately 30/1642 UTC. However, a major network outage prevented warning issuance.

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.

16:42 UTC

Space Weather Message Code: WARK04
Serial Number: 4598
Issue Time: 2024 Apr 30 1642 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 30 1642 UTC
Valid To: 2024 Apr 30 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.

воскресенье, 28 апреля 2024

02:32 UTC

Space Weather Message Code: ALTK04
Serial Number: 2442
Issue Time: 2024 Apr 28 0232 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 28 0230 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.

суббота, 27 апреля 2024

14:16 UTC

Space Weather Message Code: WARK04
Serial Number: 4597
Issue Time: 2024 Apr 27 1416 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 27 1415 UTC
Valid To: 2024 Apr 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.

пятница, 26 апреля 2024

23:00 UTC

Space Weather Message Code: WARK04
Serial Number: 4596
Issue Time: 2024 Apr 26 2300 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4595
Valid From: 2024 Apr 26 0500 UTC
Now Valid Until: 2024 Apr 27 1200 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: ALTK05
Serial Number: 1571
Issue Time: 2024 Apr 26 1651 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 26 1649 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.

16:48 UTC

Space Weather Message Code: WARK05
Serial Number: 1868
Issue Time: 2024 Apr 26 1648 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 26 1646 UTC
Valid To: 2024 Apr 26 2359 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.

14:59 UTC

Space Weather Message Code: ALTK04
Serial Number: 2441
Issue Time: 2024 Apr 26 1459 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 26 1456 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.

14:06 UTC

Space Weather Message Code: WARK04
Serial Number: 4595
Issue Time: 2024 Apr 26 1406 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4594
Valid From: 2024 Apr 26 0500 UTC
Now Valid Until: 2024 Apr 26 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.

04:51 UTC

Space Weather Message Code: WARK04
Serial Number: 4594
Issue Time: 2024 Apr 26 0451 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 26 0500 UTC
Valid To: 2024 Apr 26 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.

четверг, 25 апреля 2024

10:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 3395
Issue Time: 2024 Apr 25 1059 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2024 Apr 25 1045 UTC
Station: GOES16




Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.

среда, 24 апреля 2024

15:00 UTC

Space Weather Message Code: ALTTP4
Serial Number: 630
Issue Time: 2024 Apr 24 1500 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 Apr 24 1440 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.

14:32 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1287
Issue Time: 2024 Apr 24 1432 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Apr 24 1415 UTC
Estimated Velocity: 800 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.

вторник, 23 апреля 2024

19:16 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1286
Issue Time: 2024 Apr 23 1916 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Apr 23 1710 UTC
Estimated Velocity: 358 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.

03:57 UTC

Space Weather Message Code: SUM10R
Serial Number: 789
Issue Time: 2024 Apr 23 0357 UTC

SUMMARY: 10cm Radio Burst
Begin Time: 2024 Apr 23 0313 UTC
Maximum Time: 2024 Apr 23 0314 UTC
End Time: 2024 Apr 23 0315 UTC
Duration: 2 minutes
Peak Flux: 290 sfu
Latest Penticton Noon Flux: 227 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.

понедельник, 22 апреля 2024

22:07 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1285
Issue Time: 2024 Apr 22 2207 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Apr 22 2119 UTC
Estimated Velocity: 395 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.

воскресенье, 21 апреля 2024

23:06 UTC

Space Weather Message Code: WARK04
Serial Number: 4593
Issue Time: 2024 Apr 21 2306 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4592
Valid From: 2024 Apr 21 0500 UTC
Now Valid Until: 2024 Apr 22 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.

22:44 UTC

Space Weather Message Code: ALTTP2
Serial Number: 1284
Issue Time: 2024 Apr 21 2244 UTC

ALERT: Type II Radio Emission
Begin Time: 2024 Apr 21 2209 UTC
Estimated Velocity: 278 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.

14:57 UTC

Space Weather Message Code: WARK04
Serial Number: 4592
Issue Time: 2024 Apr 21 1457 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4591
Valid From: 2024 Apr 21 0500 UTC
Now Valid Until: 2024 Apr 21 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 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.

14:56 UTC

Space Weather Message Code: ALTK04
Serial Number: 2440
Issue Time: 2024 Apr 21 1456 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 21 1455 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.

05:00 UTC

Space Weather Message Code: WARK04
Serial Number: 4591
Issue Time: 2024 Apr 21 0500 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 21 0500 UTC
Valid To: 2024 Apr 21 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.

пятница, 19 апреля 2024

19:52 UTC

Space Weather Message Code: ALTK07
Serial Number: 140
Issue Time: 2024 Apr 19 1952 UTC

ALERT: Geomagnetic K-index of 7
Threshold Reached: 2024 Apr 19 1951 UTC
Synoptic Period: 1800-2100 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.

19:51 UTC

Space Weather Message Code: WARK07
Serial Number: 100
Issue Time: 2024 Apr 19 1951 UTC

WARNING: Geomagnetic K-index of 7 or greater expected
Valid From: 2024 Apr 19 1950 UTC
Valid To: 2024 Apr 19 2359 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.

19:42 UTC

Space Weather Message Code: WARK06
Serial Number: 515
Issue Time: 2024 Apr 19 1940 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Apr 19 1939 UTC
Valid To: 2024 Apr 19 2359 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.

19:40 UTC

Space Weather Message Code: ALTK06
Serial Number: 553
Issue Time: 2024 Apr 19 1940 UTC

ALERT: Geomagnetic K-index of 6
Threshold Reached: 2024 Apr 19 1935 UTC
Synoptic Period: 1800-2100 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.

19:40 UTC

Space Weather Message Code: WARK06
Serial Number: 515
Issue Time: 2024 Apr 19 1940 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Apr 19 1939 UTC
Valid To: 2024 Apr 19 2359 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.

19:20 UTC

Space Weather Message Code: ALTK05
Serial Number: 1570
Issue Time: 2024 Apr 19 1920 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 19 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.

17:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4590
Issue Time: 2024 Apr 19 1755 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4589
Valid From: 2024 Apr 19 0650 UTC
Now Valid Until: 2024 Apr 20 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 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.

15:52 UTC

Space Weather Message Code: ALTK05
Serial Number: 1569
Issue Time: 2024 Apr 19 1552 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 19 1550 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.

14:16 UTC

Space Weather Message Code: WARK05
Serial Number: 1867
Issue Time: 2024 Apr 19 1416 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1866
Valid From: 2024 Apr 19 0900 UTC
Now Valid Until: 2024 Apr 19 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.

14:15 UTC

Space Weather Message Code: ALTK05
Serial Number: 1568
Issue Time: 2024 Apr 19 1415 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 19 1414 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.

09:00 UTC

Space Weather Message Code: WARK05
Serial Number: 1866
Issue Time: 2024 Apr 19 0900 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 19 0900 UTC
Valid To: 2024 Apr 19 1500 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.

07:50 UTC

Space Weather Message Code: ALTK04
Serial Number: 2439
Issue Time: 2024 Apr 19 0750 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 19 0745 UTC
Synoptic Period: 0600-0900 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.

06:48 UTC

Space Weather Message Code: WARK04
Serial Number: 4589
Issue Time: 2024 Apr 19 0648 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 19 0650 UTC
Valid To: 2024 Apr 19 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.

вторник, 16 апреля 2024

23:09 UTC

Space Weather Message Code: WARK06
Serial Number: 514
Issue Time: 2024 Apr 16 2309 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2024 Apr 16 2309 UTC
Valid To: 2024 Apr 17 0300 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.

22:55 UTC

Space Weather Message Code: WARK05
Serial Number: 1865
Issue Time: 2024 Apr 16 2255 UTC

EXTENDED WARNING: Geomagnetic K-index of 5 expected
Extension to Serial Number: 1864
Valid From: 2024 Apr 16 1909 UTC
Now Valid Until: 2024 Apr 17 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.

22:54 UTC

Space Weather Message Code: WARK04
Serial Number: 4588
Issue Time: 2024 Apr 16 2254 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4587
Valid From: 2024 Apr 15 2306 UTC
Now Valid Until: 2024 Apr 17 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.

22:45 UTC

Space Weather Message Code: ALTK05
Serial Number: 1567
Issue Time: 2024 Apr 16 2245 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 16 2239 UTC
Synoptic Period: 2100-2400 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.

21:23 UTC

Space Weather Message Code: WATA20
Serial Number: 998
Issue Time: 2024 Apr 16 2123 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 17: None (Below G1) Apr 18: G1 (Minor) Apr 19: 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.

19:12 UTC

Space Weather Message Code: ALTK05
Serial Number: 1566
Issue Time: 2024 Apr 16 1912 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2024 Apr 16 1910 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.

19:09 UTC

Space Weather Message Code: WARK05
Serial Number: 1864
Issue Time: 2024 Apr 16 1909 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 16 1909 UTC
Valid To: 2024 Apr 16 2359 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.

14:24 UTC

Space Weather Message Code: WARK04
Serial Number: 4587
Issue Time: 2024 Apr 16 1424 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4586
Valid From: 2024 Apr 15 2306 UTC
Now Valid Until: 2024 Apr 16 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 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.

11:08 UTC

Space Weather Message Code: WARK05
Serial Number: 1863
Issue Time: 2024 Apr 16 1108 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2024 Apr 16 1108 UTC
Valid To: 2024 Apr 16 1500 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.

05:56 UTC

Space Weather Message Code: WARK04
Serial Number: 4586
Issue Time: 2024 Apr 16 0556 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4585
Valid From: 2024 Apr 15 2306 UTC
Now Valid Until: 2024 Apr 16 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.

01:00 UTC

Space Weather Message Code: ALTK04
Serial Number: 2438
Issue Time: 2024 Apr 16 0100 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2024 Apr 16 0053 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.

понедельник, 15 апреля 2024

23:06 UTC

Space Weather Message Code: WARK04
Serial Number: 4585
Issue Time: 2024 Apr 15 2306 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 15 2306 UTC
Valid To: 2024 Apr 16 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.

суббота, 13 апреля 2024

21:10 UTC

Space Weather Message Code: WATA20
Serial Number: 997
Issue Time: 2024 Apr 13 2110 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 14: G1 (Minor) Apr 15: G1 (Minor) Apr 16: 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.

пятница, 12 апреля 2024

21:12 UTC

Space Weather Message Code: WATA20
Serial Number: 996
Issue Time: 2024 Apr 12 2112 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Apr 13: None (Below G1) Apr 14: G1 (Minor) Apr 15: 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.

четверг, 11 апреля 2024

17:27 UTC

Space Weather Message Code: SUMXM5
Serial Number: 214
Issue Time: 2024 Apr 11 1727 UTC

SUMMARY: X-ray Event exceeded M5
Begin Time: 2024 Apr 11 1652 UTC
Maximum Time: 2024 Apr 11 1706 UTC
End Time: 2024 Apr 11 1711 UTC
X-ray Class: M5.4
Location: S15E90
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.

17:14 UTC

Space Weather Message Code: ALTTP4
Serial Number: 629
Issue Time: 2024 Apr 11 1714 UTC

ALERT: Type IV Radio Emission
Begin Time: 2024 Apr 11 1659 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.

17:07 UTC

Space Weather Message Code: ALTXMF
Serial Number: 355
Issue Time: 2024 Apr 11 1707 UTC

ALERT: X-Ray Flux exceeded M5
Threshold Reached: 2024 Apr 11 1705 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.

вторник, 9 апреля 2024

05:34 UTC

Space Weather Message Code: WARK04
Serial Number: 4584
Issue Time: 2024 Apr 09 0534 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 09 0533 UTC
Valid To: 2024 Apr 09 1200 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.

понедельник, 8 апреля 2024

05:21 UTC

Space Weather Message Code: WARK04
Serial Number: 4583
Issue Time: 2024 Apr 08 0521 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 08 0520 UTC
Valid To: 2024 Apr 08 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.

суббота, 6 апреля 2024

02:03 UTC

Space Weather Message Code: WARK04
Serial Number: 4582
Issue Time: 2024 Apr 06 0203 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2024 Apr 06 0205 UTC
Valid To: 2024 Apr 06 1200 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.

пятница, 5 апреля 2024

18:06 UTC

Space Weather Message Code: WATA20
Serial Number: 995
Issue Time: 2024 Apr 05 1806 UTC

CANCEL WATCH: Geomagnetic Storm Category G1 Predicted
Cancel Serial Number: 994
Original Issue Time: 2024 Apr 02 1926 UTC

Comment: Conditions no longer meet watch criteria.

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.

05:55 UTC

Space Weather Message Code: WARK04
Serial Number: 4581
Issue Time: 2024 Apr 05 0555 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 4580
Valid From: 2024 Apr 04 1138 UTC
Now Valid Until: 2024 Apr 05 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 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.