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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: Jul 6th, 2025 12:22:43 am
Space Weather Message Code: WARK05
- Serial Number: 2072
- Issue Time: 2025 Jul 06 0422 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Jul 06 0420 UTC
- Valid To: 2025 Jul 06 1200 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: Jul 6th, 2025 12:23:05 am
Space Weather Message Code: WARK04
- Serial Number: 5022
- Issue Time: 2025 Jul 06 0423 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5021
- Valid From: 2025 Jul 04 2248 UTC
- Now Valid Until: 2025 Jul 06 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 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: Jul 5th, 2025 7:02:05 pm
Space Weather Message Code: WARK04
- Serial Number: 5021
- Issue Time: 2025 Jul 05 2302 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5020
- Valid From: 2025 Jul 04 2248 UTC
- Now Valid Until: 2025 Jul 06 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 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: Jul 5th, 2025 10:19:43 am
Space Weather Message Code: WARK04
- Serial Number: 5020
- Issue Time: 2025 Jul 05 1419 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5019
- Valid From: 2025 Jul 04 2248 UTC
- Now Valid Until: 2025 Jul 05 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: Jul 5th, 2025 1:16:43 am
Space Weather Message Code: WARK04
- Serial Number: 5019
- Issue Time: 2025 Jul 05 0516 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5018
- Valid From: 2025 Jul 04 2248 UTC
- Now Valid Until: 2025 Jul 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 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: Jul 4th, 2025 7:53:28 pm
Space Weather Message Code: ALTK04
- Serial Number: 2573
- Issue Time: 2025 Jul 04 2353 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Jul 04 2248 UTC
- Synoptic Period: 2100-2400 UTC
- Active Warning: Yes
- 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: Jul 4th, 2025 6:49:23 pm
Space Weather Message Code: WARK04
- Serial Number: 5018
- Issue Time: 2025 Jul 04 2249 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jul 04 2248 UTC
- Valid To: 2025 Jul 05 0600 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.
Geophysical Alert Message Issued: Jul 3rd, 2025 10:44:43 am
Space Weather Message Code: ALTK04
- Serial Number: 2572
- Issue Time: 2025 Jul 03 1444 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Jul 03 1440 UTC
- Synoptic Period: 1200-1500 UTC
- Active Warning: Yes
- 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: Jul 3rd, 2025 10:32:28 am
Space Weather Message Code: ALTEF3
- Serial Number: 3490
- Issue Time: 2025 Jul 03 1432 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3489
- Begin Time: 2025 Jun 27 1310 UTC
- Yesterday Maximum 2MeV Flux: 4925 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jul 3rd, 2025 10:17:29 am
Space Weather Message Code: WARK04
- Serial Number: 5017
- Issue Time: 2025 Jul 03 1417 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jul 03 1415 UTC
- Valid To: 2025 Jul 04 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.
