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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: May 5th, 2025 2:00:24 am
Space Weather Message Code: ALTK05
- Serial Number: 1767
- Issue Time: 2025 May 05 0600 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 05 0559 UTC
- Synoptic Period: 0300-0600 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: May 5th, 2025 1:55:38 am
Space Weather Message Code: WARK05
- Serial Number: 2035
- Issue Time: 2025 May 05 0555 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2034
- Valid From: 2025 May 04 2010 UTC
- Now Valid Until: 2025 May 05 1500 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: May 5th, 2025 1:55:58 am
Space Weather Message Code: WARK04
- Serial Number: 4952
- Issue Time: 2025 May 05 0555 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4951
- Valid From: 2025 May 01 0343 UTC
- Now Valid Until: 2025 May 05 2100 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: May 5th, 2025 1:00:23 am
Space Weather Message Code: ALTEF3
- Serial Number: 3459
- Issue Time: 2025 May 05 0500 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3458
- Begin Time: 2025 May 02 1330 UTC
- Yesterday Maximum 2MeV Flux: 9364 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: May 4th, 2025 4:11:06 pm
Space Weather Message Code: WARK05
- Serial Number: 2034
- Issue Time: 2025 May 04 2011 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 May 04 2010 UTC
- Valid To: 2025 May 05 0600 UTC
- Warning Condition: Onset
- 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: May 4th, 2025 2:58:42 pm
Space Weather Message Code: WARK04
- Serial Number: 4951
- Issue Time: 2025 May 04 1858 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4950
- Valid From: 2025 May 01 0343 UTC
- Now Valid Until: 2025 May 05 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: May 4th, 2025 3:53:49 am
Space Weather Message Code: ALTK05
- Serial Number: 1766
- Issue Time: 2025 May 04 0753 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 May 04 0752 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.
Geophysical Alert Message Issued: May 4th, 2025 3:23:19 am
Space Weather Message Code: WARK05
- Serial Number: 2033
- Issue Time: 2025 May 04 0723 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 May 04 0722 UTC
- Valid To: 2025 May 04 1500 UTC
- Warning Condition: Onset
- 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: May 4th, 2025 3:23:48 am
Space Weather Message Code: WARK04
- Serial Number: 4950
- Issue Time: 2025 May 04 0723 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 4949
- Valid From: 2025 May 01 0343 UTC
- Now Valid Until: 2025 May 04 2100 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: May 4th, 2025 1:31:59 am
Space Weather Message Code: ALTEF3
- Serial Number: 3458
- Issue Time: 2025 May 04 0531 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3457
- Begin Time: 2025 May 02 1330 UTC
- Yesterday Maximum 2MeV Flux: 5464 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
