Space Weather Alerts

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P11S 2023-08-06 12:00:44.423

  • Issued: Sun, 06 Aug 2023 12:00:44 +0000
  • Space Weather Message Code: SUMPX1
    Serial Number: 102
    Issue Time: 2023 Aug 06 1200 UTC
    
    SUMMARY: Proton Event 10MeV Integral Flux exceeded 10pfu
    Begin Time: 2023 Aug 05 1115 UTC
    Maximum Time: 2023 Aug 05 1745 UTC
    End Time: 2023 Aug 06 0455 UTC
    Maximum 10MeV Flux: 18 pfu
    NOAA Scale: S1 - Minor
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation                                

P11W 2023-08-05 23:41:38.623

  • Issued: Sat, 05 Aug 2023 23:41:38 +0000
  • Space Weather Message Code: WARPX1
    Serial Number: 523
    Issue Time: 2023 Aug 05 2341 UTC
    
    EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
    Extension to Serial Number: 522
    Valid From: 2023 Aug 05 1035 UTC
    Now Valid Until: 2023 Aug 06 1200 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.                                

A20F 2023-08-05 23:31:38.850

  • Issued: Sat, 05 Aug 2023 23:31:38 +0000
  • Space Weather Message Code: WATA20
    Serial Number: 962
    Issue Time: 2023 Aug 05 2331 UTC
    
    WATCH: Geomagnetic Storm Category G1 Predicted
    
    Highest Storm Level Predicted by Day:
    Aug 06:  None (Below G1)   Aug 07:  None (Below G1)   Aug 08:  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.                                

XX0S 2023-08-05 23:08:47.323

  • Issued: Sat, 05 Aug 2023 23:08:47 +0000
  • Space Weather Message Code: SUMX01
    Serial Number: 131
    Issue Time: 2023 Aug 05 2308 UTC
    
    SUMMARY: X-ray Event exceeded X1
    Begin Time: 2023 Aug 05 2145 UTC
    Maximum Time: 2023 Aug 05 2221 UTC
    End Time: 2023 Aug 05 2244 UTC
    X-ray Class: X1.6
    Optical Class: 2b
    Location: N11W76
    NOAA Scale: R3 - Strong
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
    Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.                                

TIIA 2023-08-05 22:33:13.000

  • Issued: Sat, 05 Aug 2023 22:33:13 +0000
  • Space Weather Message Code: ALTTP2
    Serial Number: 1234
    Issue Time: 2023 Aug 05 2233 UTC
    
    ALERT: Type II Radio Emission
    Begin Time: 2023 Aug 05 2215 UTC
    Estimated Velocity: 772 km/s
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    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.                                

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