Space Weather Alerts

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K04W 2025-03-05 11:54:09.087

  • Issued: Wed, 05 Mar 2025 11:54:09 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4859
    Issue Time: 2025 Mar 05 1154 UTC
    
    EXTENDED WARNING: Geomagnetic K-index of 4 expected
    Extension to Serial Number: 4858
    Valid From: 2025 Mar 04 2132 UTC
    Now Valid Until: 2025 Mar 05 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.                                

K05W 2025-03-04 21:39:55.697

  • Issued: Tue, 04 Mar 2025 21:39:55 +0000
  • Space Weather Message Code: WARK05
    Serial Number: 1984
    Issue Time: 2025 Mar 04 2139 UTC
    
    WARNING: Geomagnetic K-index of 5 expected
    Valid From: 2025 Mar 04 2139 UTC
    Valid To: 2025 Mar 05 0600 UTC
    Warning Condition: Onset
    NOAA Scale: G1 - Minor
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.
    Induced Currents - Weak power grid fluctuations can occur.
    Spacecraft - Minor impact on satellite operations possible.
    Aurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine.                                

K04A 2025-03-04 21:36:04.257

  • Issued: Tue, 04 Mar 2025 21:36:04 +0000
  • Space Weather Message Code: ALTK04
    Serial Number: 2532
    Issue Time: 2025 Mar 04 2136 UTC
    
    ALERT: Geomagnetic K-index of 4
     Threshold Reached: 2025 Mar 04 2127 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.                                

K04W 2025-03-04 21:33:03.660

  • Issued: Tue, 04 Mar 2025 21:33:03 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4858
    Issue Time: 2025 Mar 04 2133 UTC
    
    WARNING: Geomagnetic K-index of 4 expected
    Valid From: 2025 Mar 04 2132 UTC
    Valid To: 2025 Mar 05 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.                                

EF3A 2025-03-04 18:44:51.307

  • Issued: Tue, 04 Mar 2025 18:44:51 +0000
  • Space Weather Message Code: ALTEF3
    Serial Number: 3427
    Issue Time: 2025 Mar 04 1844 UTC
    
    CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
    Continuation of Serial Number: 3426
    Begin Time: 2025 Mar 02 1510 UTC
    Yesterday Maximum 2MeV Flux: 1134 pfu
    
    
    
    Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.                                

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