Space Weather Alerts

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K06W 2024-05-11 11:20:52.773

  • Issued: Sat, 11 May 2024 11:20:52 +0000
  • Space Weather Message Code: WARK06
    Serial Number: 521
    Issue Time: 2024 May 11 1120 UTC
    
    EXTENDED WARNING: Geomagnetic K-Index of 6 expected
    Extension to Serial Number: 520
    Valid From: 2024 May 10 1714 UTC
    Now Valid Until: 2024 May 12 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.                                

P11W 2024-05-11 11:20:52.773

  • Issued: Sat, 11 May 2024 11:20:52 +0000
  • Space Weather Message Code: WARPX1
    Serial Number: 557
    Issue Time: 2024 May 11 1120 UTC
    
    EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
    Extension to Serial Number: 556
    Valid From: 2024 May 10 1305 UTC
    Now Valid Until: 2024 May 12 2359 UTC
    Warning Condition: Persistence
    Predicted NOAA Scale: S1 - Minor
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.                                

P20W 2024-05-11 11:20:52.790

  • Issued: Sat, 11 May 2024 11:20:52 +0000
  • Space Weather Message Code: WARPC0
    Serial Number: 102
    Issue Time: 2024 May 11 1120 UTC
    
    EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected
    Extension to Serial Number: 101
    Valid From: 2024 May 11 0205 UTC
    Now Valid Until: 2024 May 12 1200 UTC
    Warning Condition: Persistence
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.                                

P20W 2024-05-11 11:13:28.313

  • Issued: Sat, 11 May 2024 11:13:28 +0000
  • Space Weather Message Code: WARPC0
    Serial Number: 101
    Issue Time: 2024 May 11 1113 UTC
    
    EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected
    Extension to Serial Number: 100
    Valid From: 2024 May 11 0205 UTC
    Now Valid Until: 2024 May 12 1200 UTC
    Warning Condition: Persistence
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.                                

K08A 2024-05-11 09:44:43.023

  • Issued: Sat, 11 May 2024 09:44:43 +0000
  • Space Weather Message Code: ALTK08
    Serial Number: 37
    Issue Time: 2024 May 11 0944 UTC
    
    ALERT: Geomagnetic K-index of 8, 9-
     Threshold Reached: 2024 May 11 0940 UTC
    Synoptic Period: 0900-1200 UTC
     
    Active Warning: Yes
    NOAA Scale: G4 - Severe
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
    Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
    Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
    Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
    Radio - HF (high frequency) radio propagation sporadic or blacked out.
    Aurora - Aurora may be seen as low as Alabama and northern California.                                

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