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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 15th, 2026 7:56:11 pm
Space Weather Message Code: WARK05
- Serial Number: 2235
- Issue Time: 2026 May 15 2356 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2234
- Valid From: 2026-05-15T13:05:00
- Now Valid Until: 2026-05-16 09:00
- Warning Condition: Persistence
- Extended 2026-05-15 23:55 by Forecaster User
- Extended 2026-05-15 23:55 by Forecaster User 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 15th, 2026 6:15:47 pm
Space Weather Message Code: ALTK06
- Serial Number: 717
- Issue Time: 2026 May 15 2215 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2026 May 15 2215 UTC
- Synoptic Period: 2100-2400
- Active Warning: YES
- 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: May 15th, 2026 6:02:47 pm
Space Weather Message Code: WARK06
- Serial Number: 660
- Issue Time: 2026 May 15 2202 UTC
- WARNING: Geomagnetic K-index of 6 expected
- Valid From: 2026 May 15 2201 UTC
- Valid To: 2026 May 16 0300 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: May 15th, 2026 1:18:07 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1487
- Issue Time: 2026 May 15 1718 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 May 15 1616 UTC
- Estimate Velocity: 529 km/s
- Comment:
Geophysical Alert Message Issued: May 15th, 2026 12:07:15 pm
Space Weather Message Code: ALTK05
- Serial Number: 2019
- Issue Time: 2026 May 15 1607 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 May 15 1606 UTC
- Synoptic Period: 1500-1800
- 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: May 15th, 2026 10:50:31 am
Space Weather Message Code: WARK06
- Serial Number: 659
- Issue Time: 2026 May 15 1450 UTC
- WARNING: Geomagnetic K-index of 6 expected
- Valid From: 2026 May 15 1449 UTC
- Valid To: 2026 May 15 2100 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: May 15th, 2026 9:45:15 am
Space Weather Message Code: ALTTP2
- Serial Number: 1486
- Issue Time: 2026 May 15 1345 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 May 15 1344 UTC
- Estimate Velocity: 347 km/s
- Comment:
Geophysical Alert Message Issued: May 15th, 2026 9:27:42 am
Space Weather Message Code: ALTK05
- Serial Number: 2018
- Issue Time: 2026 May 15 1327 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 May 15 1326 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: May 15th, 2026 9:09:59 am
Space Weather Message Code: WARK04
- Serial Number: 5339
- Issue Time: 2026 May 15 1309 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5337
- Valid From: 2026-05-13T20:26:00
- Now Valid Until: 2026-05-16 12:00
- Warning Condition: Persistence
- Extended 2026-05-15 13:09 by Forecaster User
- Extended 2026-05-15 13:09 by Forecaster User
- 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 15th, 2026 9:12:45 am
Space Weather Message Code: WARK05
- Serial Number: 2234
- Issue Time: 2026 May 15 1307 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 May 15 1305 UTC
- Valid To: 2026 May 15 2359 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.
