Space Weather Alerts

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K05W 2025-04-08 14:36:19.887

  • Issued: Tue, 08 Apr 2025 14:36:19 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 2013
    Issue Time: 2025 Apr 08 1436 UTC
    
    WARNING: Geomagnetic K-index of 5 expected
    Valid From: 2025 Apr 08 1436 UTC
    Valid To: 2025 Apr 08 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.                                

TIIA 2025-04-08 06:14:34.407

  • Issued: Tue, 08 Apr 2025 06:14:34 +0000
  • Space Weather Message Code: ALTTP2
    Serial Number: 1410
    Issue Time: 2025 Apr 08 0614 UTC
    
    ALERT: Type II Radio Emission
    Begin Time: 2025 Apr 08 0553 UTC
    Estimated Velocity: 456 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.                                

K04W 2025-04-08 05:02:03.130

  • Issued: Tue, 08 Apr 2025 05:02:03 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4909
    Issue Time: 2025 Apr 08 0502 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4908
    Valid From: 2025 Apr 07 2022 UTC
    Now Valid Until: 2025 Apr 08 1500 UTC
    Warning Condition: Persistence
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.
    Induced Currents - Weak power grid fluctuations can occur.
    Aurora - Aurora may be visible at high latitudes such as Canada and Alaska.                                

EF3A 2025-04-08 04:59:21.967

  • Issued: Tue, 08 Apr 2025 04:59:21 +0000
  • Space Weather Message Code: ALTEF3
    Serial Number: 3447
    Issue Time: 2025 Apr 08 0459 UTC
    
    CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
    Continuation of Serial Number: 3446
    Begin Time: 2025 Apr 05 1225 UTC
    Yesterday Maximum 2MeV Flux: 17878 pfu
    
    
    
    Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.                                

K04A 2025-04-07 20:39:28.290

  • Issued: Mon, 07 Apr 2025 20:39:28 +0000
  • Space Weather Message Code: ALTK04
    Serial Number: 2541
    Issue Time: 2025 Apr 07 2039 UTC
    
    ALERT: Geomagnetic K-index of 4
     Threshold Reached: 2025 Apr 07 2039 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.                                

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