Space Weather Alerts

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K06A 2023-03-24 06:50:08.260

  • Issued: Fri, 24 Mar 2023 06:50:08 +0000
  • Space Weather Message Code: ALTK06
    Serial Number: 518
    Issue Time: 2023 Mar 24 0650 UTC
    
    ALERT: Geomagnetic K-index of 6
    Threshold Reached: 2023 Mar 24 0644 UTC
    Synoptic Period: 0600-0900 UTC
     
    Active Warning: Yes
    NOAA Scale: G2 - Moderate
    
    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.                                

K05A 2023-03-24 06:24:44.757

  • Issued: Fri, 24 Mar 2023 06:24:44 +0000
  • Space Weather Message Code: ALTK05
    Serial Number: 1448
    Issue Time: 2023 Mar 24 0624 UTC
    
    ALERT: Geomagnetic K-index of 5
    Threshold Reached: 2023 Mar 24 0617 UTC
    Synoptic Period: 0600-0900 UTC
     
    Active Warning: Yes
    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.                                

K08A 2023-03-24 04:16:33.840

  • Issued: Fri, 24 Mar 2023 04:16:33 +0000
  • Space Weather Message Code: ALTK08
    Serial Number: 26
    Issue Time: 2023 Mar 24 0416 UTC
    
    ALERT: Geomagnetic K-index of 8, 9-
    Threshold Reached: 2023 Mar 24 0404 UTC
    Synoptic Period: 0300-0600 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.                                

K07A 2023-03-24 03:44:45.317

  • Issued: Fri, 24 Mar 2023 03:44:45 +0000
  • Space Weather Message Code: ALTK07
    Serial Number: 128
    Issue Time: 2023 Mar 24 0344 UTC
    
    ALERT: Geomagnetic K-index of 7
    Threshold Reached: 2023 Mar 24 0339 UTC
    Synoptic Period: 0300-0600 UTC
     
    Active Warning: Yes
    NOAA Scale: G3 - Strong
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation
    
    Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
    Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
    Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
    Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
    Radio - HF (high frequency) radio may be intermittent.
    Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.                                

K06A 2023-03-24 03:29:45.130

  • Issued: Fri, 24 Mar 2023 03:29:45 +0000
  • Space Weather Message Code: ALTK06
    Serial Number: 517
    Issue Time: 2023 Mar 24 0329 UTC
    
    ALERT: Geomagnetic K-index of 6
    Threshold Reached: 2023 Mar 24 0323 UTC
    Synoptic Period: 0300-0600 UTC
     
    Active Warning: Yes
    NOAA Scale: G2 - Moderate
    
    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.                                

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