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Having SatCom problems?
A burst of radiation on the sun's surface may trigger a geomagnetic storm, which can disrupt satellite communications.
In order to prevent unnecessary maintenance on satellite communications systems Air Sat One has provided a feed of Geophysical Events from NOAA's Space Weather Prediction Center. Check here to see if solar activity could be a cause of satellite communications problems.
Geophysical Alert Message Issued: Mar 26th, 2025 11:50:17 pm
Space Weather Message Code: WARK04
- Serial Number: 4891
- Issue Time: 2025 Mar 27 0350 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4890
- Valid From: 2025 Mar 25 2017 UTC
- Now Valid Until: 2025 Mar 27 2359 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.
Geophysical Alert Message Issued: Mar 26th, 2025 6:46:12 pm
Space Weather Message Code: ALTK05
- Serial Number: 1729
- Issue Time: 2025 Mar 26 2246 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 26 2237 UTC
- Synoptic Period: 2100-2400 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.
Geophysical Alert Message Issued: Mar 26th, 2025 4:16:49 pm
Space Weather Message Code: ALTK06
- Serial Number: 622
- Issue Time: 2025 Mar 26 2016 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2025 Mar 26 2008 UTC
- Synoptic Period: 1800-2100 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.
Geophysical Alert Message Issued: Mar 26th, 2025 4:18:27 pm
Space Weather Message Code: WARK06
- Serial Number: 569
- Issue Time: 2025 Mar 26 2018 UTC
- EXTENDED WARNING: Geomagnetic K-Index of 6 expected
- Extension to Serial Number: 568
- Valid From: 2025 Mar 26 1338 UTC
- Now Valid Until: 2025 Mar 27 0300 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.
Geophysical Alert Message Issued: Mar 26th, 2025 4:04:30 pm
Space Weather Message Code: ALTK05
- Serial Number: 1728
- Issue Time: 2025 Mar 26 2004 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 26 2000 UTC
- Synoptic Period: 1800-2100 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.
Geophysical Alert Message Issued: Mar 26th, 2025 1:48:24 pm
Space Weather Message Code: ALTK06
- Serial Number: 621
- Issue Time: 2025 Mar 26 1748 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2025 Mar 26 1700 UTC
- Synoptic Period: 1500-1800 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.
Geophysical Alert Message Issued: Mar 26th, 2025 12:59:35 pm
Space Weather Message Code: WARK04
- Serial Number: 4890
- Issue Time: 2025 Mar 26 1659 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4889
- Valid From: 2025 Mar 25 2017 UTC
- Now Valid Until: 2025 Mar 27 1200 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.
Geophysical Alert Message Issued: Mar 26th, 2025 1:01:27 pm
Space Weather Message Code: WARK05
- Serial Number: 2002
- Issue Time: 2025 Mar 26 1701 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2001
- Valid From: 2025 Mar 26 0131 UTC
- Now Valid Until: 2025 Mar 27 0600 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 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.
Geophysical Alert Message Issued: Mar 26th, 2025 12:58:22 pm
Space Weather Message Code: ALTK05
- Serial Number: 1727
- Issue Time: 2025 Mar 26 1658 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Mar 26 1628 UTC
- Synoptic Period: 1500-1800 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.
Geophysical Alert Message Issued: Mar 26th, 2025 10:04:13 am
Space Weather Message Code: ALTK06
- Serial Number: 620
- Issue Time: 2025 Mar 26 1404 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2025 Mar 26 1358 UTC
- Synoptic Period: 1200-1500 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.
