Space Weather Alerts

Home » Astronomy Information » Latest Astronomy Alerts » Space Weather Alerts

MSIS 2023-12-01 00:32:38.170

  • Issued: Fri, 01 Dec 2023 00:32:38 +0000
  • Space Weather Message Code: SUMSUD
    Serial Number: 264
    Issue Time: 2023 Dec 01 0032 UTC
    
    SUMMARY: Geomagnetic Sudden Impulse
    Observed: 2023 Dec 01 0021 UTC
    Deviation: 36 nT
    Station: FRD
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation                                

K04W 2023-12-01 00:29:11.073

  • Issued: Fri, 01 Dec 2023 00:29:11 +0000
  • Space Weather Message Code: WARK04
    Serial Number: 4516
    Issue Time: 2023 Dec 01 0029 UTC
    
    WARNING: Geomagnetic K-index of 4 expected
    Valid From: 2023 Dec 01 0028 UTC
    Valid To: 2023 Dec 01 0900 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.                                

SGIW 2023-12-01 00:13:45.043

  • Issued: Fri, 01 Dec 2023 00:13:45 +0000
  • Space Weather Message Code: WARSUD
    Serial Number: 217
    Issue Time: 2023 Dec 01 0013 UTC
    
    WARNING: Geomagnetic Sudden Impulse expected
    Valid From: 2023 Dec 01 0030 UTC
    Valid To: 2023 Dec 01 0130 UTC
    IP Shock Passage Observed: 2023 Dec 01 0000 UTC
    
    NOAA Space Weather Scale descriptions can be found at
    www.swpc.noaa.gov/noaa-scales-explanation                                

A50F 2023-11-29 17:56:13.760

  • Issued: Wed, 29 Nov 2023 17:56:13 +0000
  • Space Weather Message Code: WATA50
    Serial Number: 73
    Issue Time: 2023 Nov 29 1756 UTC
    
    WATCH: Geomagnetic Storm Category G3 Predicted
    
    Highest Storm Level Predicted by Day:
    Nov 30:  G1 (Minor)   Dec 01:  G3 (Strong)   Dec 02:  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 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.                                

TIIA 2023-11-28 20:27:09.780

  • Issued: Tue, 28 Nov 2023 20:27:09 +0000
  • Space Weather Message Code: ALTTP2
    Serial Number: 1257
    Issue Time: 2023 Nov 28 2027 UTC
    
    ALERT: Type II Radio Emission
    Begin Time: 2023 Nov 28 1959 UTC
    Estimated Velocity: 854 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.                                

Latest Astronomy Alerts

Coronal Mass Ejection Alerts

2025-04-14T19:00:00-CME-001

  • Start: 04/14/2025 19:00:00
  • Catalog: M2M_CATALOG
  • Source:
Read More

Space Weather Alerts

K04A 2025-04-14 23:02:50.407

Space Weather Message Code: ALTK04 Serial Number: 2546 Issue Time: 2025 Apr 14 2302 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2025 Apr 14 2301 UTC Synoptic Period: 2100-2400… Read More

Geo Magnetic Storm Alerts

3-Day Forecast - 2025 Apr 15 0030 UTC

:Product: 3-Day Forecast :Issued: 2025 Apr 15 0030 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # A. NOAA Geomagnetic Activity Observation and Forecast… Read More

Solar Flare Alerts

2025-04-14T06:36:00-FLR-001

  • Begins: 04/14/2025 06:36:00
  • Ends: 04/14/2025 06:58:00
  • Class: M4.2
Read More