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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 13th, 2026 4:27:27 pm
Space Weather Message Code: WARK04
- Serial Number: 5337
- Issue Time: 2026 May 13 2027 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 May 13 2026 UTC
- Valid To: 2026 May 14 0600 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: May 13th, 2026 5:07:51 am
Space Weather Message Code: WATA30
- Serial Number: 273
- Issue Time: 2026 May 13 0907 UTC
- WATCH: Geomagnetic Storm Category G2 Predicted
- Highest Storm Level Predicted by Day:
- May 14: None (Below G1) May 15: G2 (Moderate) May 16: 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 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 12th, 2026 9:26:26 am
Space Weather Message Code: WATA20
- Serial Number: 1111
- Issue Time: 2026 May 12 1326 UTC
- WATCH: Geomagnetic Storm Category G1 Predicted
- Highest Storm Level Predicted by Day:
- May 13: None (Below G1) May 14: None (Below G1) May 15: G1 (Minor)
- THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT
- Comment: Negative CH influence
- Negative CH influence
- 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 10th, 2026 10:14:33 am
Space Weather Message Code: SUMXM5
- Serial Number: 316
- Issue Time: 2026 May 10 1414 UTC
- SUMMARY: X-ray Event exceeded M5
- Begin Time: 2026 May 10 1319 UTC
- Maximum Time: 2026 May 10 1339 UTC
- End Time: 2026 May 10 1402 UTC
- Xray Class: M5.7
- Optical Class:
- Location: N18E65
- Noaa Scale: R2 - Moderate
- Comment:
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.
- Radio - Limited blackout of HF (high frequency) radio communication for tens of minutes.
Geophysical Alert Message Issued: May 10th, 2026 9:55:57 am
Space Weather Message Code: SUM10R
- Serial Number: 911
- Issue Time: 2026 May 10 1355 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2026 May 10 1328 UTC
- Maximum Time: 2026 May 10 1334 UTC
- End Time: 2026 May 10 1343 UTC
- Peak Flux: 550 sfu
- Duration: 15 minutes
- Latest Penticton Noon Flux: 122 sfu
- Comment:
Geophysical Alert Message Issued: May 10th, 2026 9:47:47 am
Space Weather Message Code: ALTTP2
- Serial Number: 1484
- Issue Time: 2026 May 10 1347 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 May 10 1329 UTC
- Estimate Velocity: 650 km/s
- Comment:
Geophysical Alert Message Issued: May 10th, 2026 9:38:09 am
Space Weather Message Code: ALTXMF
- Serial Number: 528
- Issue Time: 2026 May 10 1338 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 May 10 1335 UTC
- Noaa Scale: R2 - Moderate
- Comment:
- NOAA Scale: R2 - Moderate
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http://www.swpc.noaa.gov/products/d-region-absorption-predictions-d-rap.
Geophysical Alert Message Issued: May 8th, 2026 1:25:25 pm
Space Weather Message Code: WARK04
- Serial Number: 5336
- Issue Time: 2026 May 08 1725 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 May 08 1724 UTC
- Valid To: 2026 May 08 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: May 7th, 2026 12:37:40 pm
Space Weather Message Code: WARK04
- Serial Number: 5335
- Issue Time: 2026 May 07 1637 UTC
- WARNING: Geomagnetic K-index of 4 expected
- Valid From: 2026 May 07 1635 UTC
- Valid To: 2026 May 08 1500 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: May 4th, 2026 10:49:25 pm
Space Weather Message Code: ALTK05
- Serial Number: 2016
- Issue Time: 2026 May 05 0249 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 May 05 0244 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.
