NOAA SWPC Alertes

Le Centre de prévision National Oceanic and Atmospheric Administration Space Weather (NOAA SWPC) est l'organisme gouvernemental de la météorologie spatiale officielle des États-Unis qui fournit des alertes pour les perturbations de la météo spatiale. Ci-dessous vous trouverez les dernières alertes météorologiques de l'espace émis par la NOAA SWPC.

lundi 15 janvier 2018

08:55 UTC

Space Weather Message Code: WARK04
Serial Number: 3405
Issue Time: 2018 Jan 15 0855 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3404
Valid From: 2018 Jan 15 0105 UTC
Now Valid Until: 2018 Jan 15 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.

02:45 UTC

Space Weather Message Code: ALTK04
Serial Number: 2030
Issue Time: 2018 Jan 15 0245 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Jan 15 0245 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.

01:03 UTC

Space Weather Message Code: WARK04
Serial Number: 3404
Issue Time: 2018 Jan 15 0103 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Jan 15 0105 UTC
Valid To: 2018 Jan 15 0900 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.

dimanche 14 janvier 2018

03:00 UTC

Space Weather Message Code: ALTK05
Serial Number: 1205
Issue Time: 2018 Jan 14 0300 UTC

ALERT: Geomagnetic K-index of 5
Threshold Reached: 2018 Jan 14 0259 UTC
Synoptic Period: 0000-0300 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.

02:06 UTC

Space Weather Message Code: WARK05
Serial Number: 1448
Issue Time: 2018 Jan 14 0206 UTC

WARNING: Geomagnetic K-index of 5 expected
Valid From: 2018 Jan 14 0210 UTC
Valid To: 2018 Jan 14 0900 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.

01:16 UTC

Space Weather Message Code: ALTK04
Serial Number: 2029
Issue Time: 2018 Jan 14 0116 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Jan 14 0115 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.

samedi 13 janvier 2018

18:15 UTC

Space Weather Message Code: WARK04
Serial Number: 3403
Issue Time: 2018 Jan 13 1815 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Jan 13 1815 UTC
Valid To: 2018 Jan 14 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.

mardi 09 janvier 2018

03:02 UTC

Space Weather Message Code: ALTK04
Serial Number: 2028
Issue Time: 2018 Jan 09 0302 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Jan 09 0259 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.

01:53 UTC

Space Weather Message Code: WARK04
Serial Number: 3402
Issue Time: 2018 Jan 09 0153 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Jan 09 0153 UTC
Valid To: 2018 Jan 09 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.

lundi 08 janvier 2018

14:40 UTC

Space Weather Message Code: ALTK04
Serial Number: 2027
Issue Time: 2018 Jan 08 1440 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Jan 08 1431 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.

13:19 UTC

Space Weather Message Code: WARK04
Serial Number: 3401
Issue Time: 2018 Jan 08 1319 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Jan 08 1318 UTC
Valid To: 2018 Jan 08 1918 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.

lundi 01 janvier 2018

05:01 UTC

Space Weather Message Code: WARK04
Serial Number: 3400
Issue Time: 2018 Jan 01 0501 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3399
Valid From: 2017 Dec 31 2010 UTC
Now Valid Until: 2018 Jan 01 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.

04:11 UTC

Space Weather Message Code: ALTK04
Serial Number: 2026
Issue Time: 2018 Jan 01 0411 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Jan 01 0410 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.

dimanche 31 décembre 2017

20:11 UTC

Space Weather Message Code: WARK04
Serial Number: 3399
Issue Time: 2017 Dec 31 2011 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2017 Dec 31 2010 UTC
Valid To: 2018 Jan 01 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.

vendredi 29 décembre 2017

18:54 UTC

Space Weather Message Code: WATA20
Serial Number: 815
Issue Time: 2017 Dec 29 1854 UTC

WATCH: Geomagnetic Storm Category G1 Predicted

Highest Storm Level Predicted by Day:
Dec 30:  None (Below G1)   Dec 31:  None (Below G1)   Jan 01:  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.

18:03 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2726
Issue Time: 2017 Dec 29 1803 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2017 Dec 29 1745 UTC
Station: GOES-15
 

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

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

mercredi 27 décembre 2017

16:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2725
Issue Time: 2017 Dec 27 1600 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2017 Dec 27 1545 UTC
Station: GOES15
 

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

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

mardi 26 décembre 2017

23:24 UTC

Space Weather Message Code: WARK04
Serial Number: 3398
Issue Time: 2017 Dec 26 2324 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3397
Valid From: 2017 Dec 26 1958 UTC
Now Valid Until: 2017 Dec 27 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.

20:05 UTC

Space Weather Message Code: ALTK04
Serial Number: 2025
Issue Time: 2017 Dec 26 2005 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2017 Dec 26 2005 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.

19:58 UTC

Space Weather Message Code: WARK04
Serial Number: 3397
Issue Time: 2017 Dec 26 1958 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2017 Dec 26 1958 UTC
Valid To: 2017 Dec 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.

dimanche 24 décembre 2017

13:41 UTC

Space Weather Message Code: WARK04
Serial Number: 3396
Issue Time: 2017 Dec 24 1341 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2017 Dec 24 1340 UTC
Valid To: 2017 Dec 25 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.

samedi 23 décembre 2017

19:03 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2724
Issue Time: 2017 Dec 23 1903 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2723
Begin Time: 2017 Dec 17 2100 UTC
Yesterday Maximum 2MeV Flux: 3001 pfu

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

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

vendredi 22 décembre 2017

11:55 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2723
Issue Time: 2017 Dec 22 1155 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2722
Begin Time: 2017 Dec 17 2100 UTC
Yesterday Maximum 2MeV Flux: 2949 pfu

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

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

jeudi 21 décembre 2017

11:55 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2722
Issue Time: 2017 Dec 21 1155 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2721
Begin Time: 2017 Dec 17 2100 UTC
Yesterday Maximum 2MeV Flux: 4134 pfu

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

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

mercredi 20 décembre 2017

11:35 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2721
Issue Time: 2017 Dec 20 1135 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2720
Begin Time: 2017 Dec 17 2100 UTC
Yesterday Maximum 2MeV Flux: 4390 pfu

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

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

mardi 19 décembre 2017

09:00 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2720
Issue Time: 2017 Dec 19 0900 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2719
Begin Time: 2017 Dec 17 2100 UTC
Yesterday Maximum 2MeV Flux: 5978 pfu

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

Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Les données disponibles indiquent qu'il n'est actuellement pas possible de voir une aurore sur les latitudes moyennes.

Dernières nouvelles

La météo de l'espace aujourd'hui

L'activité aurorale Faible Fort
Hautes latitudes 15% 10%
Latitudes moyennes 1% 1%
Kp prévisionnel max 2
L'activité solaire
Éruptions solaires classe-M 1%
Éruptions solaires classe-X 1%
Phase de la Lune
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Qu'est-ce que l'Alerte Aurore ?

La Météo Spatiale en faits

Dernière classe X:10/09/2017X8.2
Dernière classe M:20/10/2017M1.0
Dernier orage géomagnétique:14/01/2018Kp5 (G1)
Nombre de jours sans taches solaires en 2018:6
Dernier jour sans taches solaires:14/01/2018

A ce jour dans l'histoire*

Éruptions solaires
12005M4.6
22000M3.9
31999M2.0
42012M1.7
52005M1.6
ApG
1200584G4
2199537G2
3199424G1
4200718
5200418
*depuis 1994