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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: Oct 4th, 2026 3:01:38 pm
Space Weather Message Code: WARK04
- Serial Number: 5425
- Issue Time: 2026 Oct 04 1901 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5424
- Valid From: 2026 Oct 04 0615 UTC
- Now Valid Until: 2026 Oct 05 0300 UTC
- Warning Condition: Persistence
- extended past Kp5 warning.
- 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: Oct 4th, 2026 2:50:12 pm
Space Weather Message Code: WARK05
- Serial Number: 2268
- Issue Time: 2026 Oct 04 1850 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2267
- Valid From: 2026 Oct 04 1110 UTC
- Now Valid Until: 2026 Oct 05 0300 UTC
- Warning Condition: Persistence
- Extended with issuance of G2 warning.
- 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: Oct 4th, 2026 2:47:59 pm
Space Weather Message Code: WARK06
- Serial Number: 671
- Issue Time: 2026 Oct 04 1847 UTC
- WARNING: Geomagnetic K-index of 6 expected
- Valid From: 2026 Oct 04 1847 UTC
- Valid To: 2026 Oct 04 2359 UTC
- Warning Conditions: Onset
- Noaa Scale: G2 - Moderate
- Comment:
- 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: Oct 4th, 2026 2:40:00 pm
Space Weather Message Code: ALTK05
- Serial Number: 2052
- Issue Time: 2026 Oct 04 1840 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Oct 04 1839 UTC
- Synoptic Period: 1800-2100
- Active Warning: YES
- Noaa Scale: G1 - Minor
- Comment:
- 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: Oct 4th, 2026 10:03:28 am
Space Weather Message Code: ALTK05
- Serial Number: 2051
- Issue Time: 2026 Oct 04 1403 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Oct 04 1402 UTC
- Synoptic Period: 1200-1500
- Active Warning: YES
- Noaa Scale: G1 - Minor
- Comment:
- 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: Oct 4th, 2026 7:23:41 am
Space Weather Message Code: ALTK05
- Serial Number: 2050
- Issue Time: 2026 Oct 04 1123 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Oct 04 1122 UTC
- Synoptic Period: 0900-1200
- Active Warning: YES
- Noaa Scale: G1 - Minor
- Comment:
- 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: Oct 4th, 2026 7:07:31 am
Space Weather Message Code: WARK05
- Serial Number: 2267
- Issue Time: 2026 Oct 04 1107 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Oct 04 1110 UTC
- Valid To: 2026 Oct 04 2100 UTC
- Warning Conditions: Onset
- Noaa Scale: G1 - Minor
- Comment:
- 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: Oct 4th, 2026 4:01:06 am
Space Weather Message Code: ALTK04
- Serial Number: 2689
- Issue Time: 2026 Oct 04 0801 UTC
- ALERT: Geomagnetic K-index of 4
- Threshold Reached: 2026 Oct 04 0757 UTC
- Synoptic Period: 0600-0900
- Active Warning: YES
- Comment:
- 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: Oct 4th, 2026 2:13:42 am
Space Weather Message Code: WARK04
- Serial Number: 5424
- Issue Time: 2026 Oct 04 0613 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 Oct 04 0615 UTC
- Valid To: 2026 Oct 04 2359 UTC
- Warning Conditions: Onset
- Comment:
- 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: Oct 1st, 2026 10:28:54 am
Space Weather Message Code: WATA20
- Serial Number: 1128
- Issue Time: 2026 Oct 01 1428 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- Oct 02: G1 (Minor) Oct 03: None (Below G1) Oct 04: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment:
- 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.
