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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: Jan 18th, 2026 2:55:01 pm
Space Weather Message Code: SUM10R
- Serial Number: 899
- Issue Time: 2026 Jan 18 1955 UTC
- SUMMARY: 10cm Radio Burst
- Begin Time: 2026 Jan 18 1739 UTC
- Maximum Time: 2026 Jan 18 1757 UTC
- End Time: 2026 Jan 18 1944 UTC
- Duration: 122 minutes
- Peak Flux: 3200 sfu
- Latest Penticton Noon Flux: 148 sfu
- Description: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications.
Geophysical Alert Message Issued: Jan 18th, 2026 2:00:01 pm
Space Weather Message Code: SUMX01
- Serial Number: 205
- Issue Time: 2026 Jan 18 1900 UTC
- SUMMARY: X-ray Event exceeded X1
- Begin Time: 2026 Jan 18 1727 UTC
- Maximum Time: 2026 Jan 18 1809 UTC
- End Time: 2026 Jan 18 1851 UTC
- X-ray Class: X1.9
- Optical Class: 3b
- Location: S12E20
- NOAA Scale: R3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.
- Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.
Geophysical Alert Message Issued: Jan 18th, 2026 1:47:58 pm
Space Weather Message Code: ALTTP2
- Serial Number: 1466
- Issue Time: 2026 Jan 18 1847 UTC
- ALERT: Type II Radio Emission
- Begin Time: 2026 Jan 18 1759 UTC
- Estimated Velocity: 693 km/s
- Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.
Geophysical Alert Message Issued: Jan 18th, 2026 1:13:43 pm
Space Weather Message Code: ALTTP4
- Serial Number: 704
- Issue Time: 2026 Jan 18 1813 UTC
- ALERT: Type IV Radio Emission
- Begin Time: 2026 Jan 18 1748 UTC
- Description: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms.
Geophysical Alert Message Issued: Jan 18th, 2026 12:52:17 pm
Space Weather Message Code: ALTXMF
- Serial Number: 508
- Issue Time: 2026 Jan 18 1752 UTC
- ALERT: X-Ray Flux exceeded M5
- Threshold Reached: 2026 Jan 18 1752 UTC
- 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: Jan 18th, 2026 1:02:24 am
Space Weather Message Code: ALTEF3
- Serial Number: 3604
- Issue Time: 2026 Jan 18 0602 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3603
- Begin Time: 2026 Jan 12 1040 UTC
- Yesterday Maximum 2MeV Flux: 2763 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 17th, 2026 5:36:58 pm
Space Weather Message Code: WARK04
- Serial Number: 5224
- Issue Time: 2026 Jan 17 2236 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5223
- Valid From: 2026 Jan 16 0254 UTC
- Now Valid Until: 2026 Jan 18 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: Jan 17th, 2026 8:43:59 am
Space Weather Message Code: ALTEF3
- Serial Number: 3603
- Issue Time: 2026 Jan 17 1343 UTC
- CONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu
- Continuation of Serial Number: 3602
- Begin Time: 2026 Jan 12 1040 UTC
- Yesterday Maximum 2MeV Flux: 8698 pfu
- Potential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems.
Geophysical Alert Message Issued: Jan 16th, 2026 9:09:31 pm
Space Weather Message Code: ALTK05
- Serial Number: 1945
- Issue Time: 2026 Jan 17 0209 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jan 17 0209 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: Jan 16th, 2026 9:07:46 pm
Space Weather Message Code: WARK05
- Serial Number: 2173
- Issue Time: 2026 Jan 17 0207 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2172
- Valid From: 2026 Jan 16 1525 UTC
- Now Valid Until: 2026 Jan 17 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 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.
