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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 8th, 2025 2:03:34 am
Space Weather Message Code: ALTK04
- Serial Number: 2574
- Issue Time: 2025 Jul 08 0603 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2025 Jul 08 0559 UTC
- Synoptic Period: 0300-0600 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 8th, 2025 1:43:21 am
Space Weather Message Code: WARK04
- Serial Number: 5027
- Issue Time: 2025 Jul 08 0543 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5026
- Valid From: 2025 Jul 07 2321 UTC
- Now Valid Until: 2025 Jul 08 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 7th, 2025 7:21:59 pm
Space Weather Message Code: WARK04
- Serial Number: 5026
- Issue Time: 2025 Jul 07 2321 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2025 Jul 07 2321 UTC
- Valid To: 2025 Jul 08 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 7th, 2025 1:49:41 am
Space Weather Message Code: WARK05
- Serial Number: 2074
- Issue Time: 2025 Jul 07 0549 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2073
- Valid From: 2025 Jul 06 2320 UTC
- Now Valid Until: 2025 Jul 07 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 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 7th, 2025 1:50:06 am
Space Weather Message Code: WARK04
- Serial Number: 5025
- Issue Time: 2025 Jul 07 0550 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5024
- Valid From: 2025 Jul 04 2248 UTC
- Now Valid Until: 2025 Jul 07 1800 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 6th, 2025 9:51:02 pm
Space Weather Message Code: WARK06
- Serial Number: 597
- Issue Time: 2025 Jul 07 0151 UTC
- WARNING: Geomagnetic K-Index of 6 expected
- Valid From: 2025 Jul 07 0150 UTC
- Valid To: 2025 Jul 07 0600 UTC
- Warning Condition: Onset
- 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: Jul 6th, 2025 9:25:15 pm
Space Weather Message Code: ALTK05
- Serial Number: 1824
- Issue Time: 2025 Jul 07 0125 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Jul 07 0124 UTC
- Synoptic Period: 0000-0300 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: Jul 6th, 2025 7:53:56 pm
Space Weather Message Code: ALTK05
- Serial Number: 1823
- Issue Time: 2025 Jul 06 2353 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2025 Jul 06 2350 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: Jul 6th, 2025 7:41:52 pm
Space Weather Message Code: WARK04
- Serial Number: 5024
- Issue Time: 2025 Jul 06 2341 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5023
- Valid From: 2025 Jul 04 2248 UTC
- Now Valid Until: 2025 Jul 07 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: Jul 6th, 2025 7:21:21 pm
Space Weather Message Code: WARK05
- Serial Number: 2073
- Issue Time: 2025 Jul 06 2321 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2025 Jul 06 2320 UTC
- Valid To: 2025 Jul 07 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.
