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.

mardi 21 août 2018

06:36 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2823
Issue Time: 2018 Aug 21 0636 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2822
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 4163 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.

lundi 20 août 2018

19:23 UTC

Space Weather Message Code: ALTK04
Serial Number: 2071
Issue Time: 2018 Aug 20 1923 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 20 1923 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.

19:20 UTC

Space Weather Message Code: WARK04
Serial Number: 3516
Issue Time: 2018 Aug 20 1920 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 20 1919 UTC
Valid To: 2018 Aug 21 0000 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.

19:16 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2822
Issue Time: 2018 Aug 20 1916 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2821
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 18287 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.

03:00 UTC

Space Weather Message Code: ALTK04
Serial Number: 2070
Issue Time: 2018 Aug 20 0300 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 20 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.

00:36 UTC

Space Weather Message Code: WARK04
Serial Number: 3515
Issue Time: 2018 Aug 20 0036 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 20 0036 UTC
Valid To: 2018 Aug 20 1400 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 19 août 2018

08:59 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2821
Issue Time: 2018 Aug 19 0859 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2820
Begin Time: 2018 Aug 18 1410 UTC
Yesterday Maximum 2MeV Flux: 7218 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.

samedi 18 août 2018

14:26 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2820
Issue Time: 2018 Aug 18 1426 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2018 Aug 18 1410 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.

08:09 UTC

Space Weather Message Code: ALTK04
Serial Number: 2069
Issue Time: 2018 Aug 18 0809 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 18 0808 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.

05:59 UTC

Space Weather Message Code: WARK04
Serial Number: 3514
Issue Time: 2018 Aug 18 0559 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 18 0600 UTC
Valid To: 2018 Aug 18 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.

vendredi 17 août 2018

04:13 UTC

Space Weather Message Code: ALTK04
Serial Number: 2068
Issue Time: 2018 Aug 17 0413 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 17 0412 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.

03:45 UTC

Space Weather Message Code: WARK04
Serial Number: 3513
Issue Time: 2018 Aug 17 0345 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 17 0345 UTC
Valid To: 2018 Aug 17 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.

jeudi 16 août 2018

02:03 UTC

Space Weather Message Code: WARK04
Serial Number: 3512
Issue Time: 2018 Aug 16 0203 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3511
Valid From: 2018 Aug 15 2215 UTC
Now Valid Until: 2018 Aug 16 1000 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.

00:02 UTC

Space Weather Message Code: ALTK04
Serial Number: 2067
Issue Time: 2018 Aug 16 0002 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 15 2359 UTC
Synoptic Period: 2100-2359 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.

mercredi 15 août 2018

22:12 UTC

Space Weather Message Code: WARK04
Serial Number: 3511
Issue Time: 2018 Aug 15 2212 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 15 2215 UTC
Valid To: 2018 Aug 16 0300 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.

13:55 UTC

Space Weather Message Code: ALTK04
Serial Number: 2066
Issue Time: 2018 Aug 15 1355 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 15 1350 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.

11:42 UTC

Space Weather Message Code: WARK04
Serial Number: 3510
Issue Time: 2018 Aug 15 1142 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 15 1142 UTC
Valid To: 2018 Aug 15 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.

dimanche 12 août 2018

00:00 UTC

Space Weather Message Code: ALTK04
Serial Number: 2065
Issue Time: 2018 Aug 12 0000 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Aug 11 2359 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.

samedi 11 août 2018

14:36 UTC

Space Weather Message Code: WARK04
Serial Number: 3509
Issue Time: 2018 Aug 11 1436 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 11 1436 UTC
Valid To: 2018 Aug 11 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.

mardi 07 août 2018

14:21 UTC

Space Weather Message Code: WARK04
Serial Number: 3508
Issue Time: 2018 Aug 07 1421 UTC

CANCEL WARNING: Geomagnetic K-index of 4 expected
Cancel Serial Number: 3507
Original Issue Time: 2018 Aug 07 1341 UTC

Comment: Date error

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.

13:41 UTC

Space Weather Message Code: WARK04
Serial Number: 3507
Issue Time: 2018 Aug 07 1341 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Aug 10 1341 UTC
Valid To: 2018 Aug 10 1600 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 30 juillet 2018

16:37 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2819
Issue Time: 2018 Jul 30 1637 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2818
Begin Time: 2018 Jul 25 1355 UTC
Yesterday Maximum 2MeV Flux: 3181 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.

dimanche 29 juillet 2018

15:08 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2818
Issue Time: 2018 Jul 29 1508 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2817
Begin Time: 2018 Jul 25 1355 UTC
Yesterday Maximum 2MeV Flux: 3095 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.

samedi 28 juillet 2018

12:46 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2817
Issue Time: 2018 Jul 28 1246 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2816
Begin Time: 2018 Jul 25 1355 UTC
Yesterday Maximum 2MeV Flux: 3946 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 27 juillet 2018

10:18 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2816
Issue Time: 2018 Jul 27 1018 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2815
Begin Time: 2018 Jul 25 1355 UTC
Yesterday Maximum 2MeV Flux: 2572 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 26 juillet 2018

12:33 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2815
Issue Time: 2018 Jul 26 1233 UTC

CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Continuation of Serial Number: 2814
Begin Time: 2018 Jul 25 1355 UTC
Yesterday Maximum 2MeV Flux: 3987 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 25 juillet 2018

14:02 UTC

Space Weather Message Code: ALTEF3
Serial Number: 2814
Issue Time: 2018 Jul 25 1402 UTC

ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
Threshold Reached: 2018 Jul 25 1355 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 24 juillet 2018

22:07 UTC

Space Weather Message Code: ALTK04
Serial Number: 2064
Issue Time: 2018 Jul 24 2207 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Jul 24 2207 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.

17:46 UTC

Space Weather Message Code: WARK04
Serial Number: 3506
Issue Time: 2018 Jul 24 1746 UTC

EXTENDED WARNING: Geomagnetic K-index of 4 expected
Extension to Serial Number: 3505
Valid From: 2018 Jul 24 0905 UTC
Now Valid Until: 2018 Jul 25 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.

09:05 UTC

Space Weather Message Code: WARK04
Serial Number: 3505
Issue Time: 2018 Jul 24 0905 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Jul 24 0905 UTC
Valid To: 2018 Jul 24 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.

02:23 UTC

Space Weather Message Code: ALTK04
Serial Number: 2063
Issue Time: 2018 Jul 24 0223 UTC

ALERT: Geomagnetic K-index of 4
Threshold Reached: 2018 Jul 24 0223 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.

01:42 UTC

Space Weather Message Code: WARK04
Serial Number: 3504
Issue Time: 2018 Jul 24 0142 UTC

WARNING: Geomagnetic K-index of 4 expected
Valid From: 2018 Jul 24 0144 UTC
Valid To: 2018 Jul 24 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.

Les données disponibles indiquent qu'il n'est actuellement pas possible de voir une aurore sur les latitudes moyennes.
La vitesse du vent solaire est actuellement modérément élevée (513,1 km/sec.)

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