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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 19th, 2026 4:09:53 pm
Space Weather Message Code: ALTK06
- Serial Number: 683
- Issue Time: 2026 Jan 19 2109 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2026 Jan 19 2110 UTC
- Synoptic Period: 2100-2400 UTC
- Active Warning: Yes
- 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: Jan 19th, 2026 2:43:39 pm
Space Weather Message Code: ALTK08
- Serial Number: 55
- Issue Time: 2026 Jan 19 1943 UTC
- ALERT: Geomagnetic K-index of 8, 9-
- Threshold Reached: 2026 Jan 19 1938 UTC
- Synoptic Period: 1800-2100 UTC
- Active Warning: Yes
- NOAA Scale: G4 - Severe
- Comment: Currently at a Kp8-
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.
- Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.
- Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.
- Navigation - Satellite navigation (GPS) degraded or inoperable for hours.
- Radio - HF (high frequency) radio propagation sporadic or blacked out.
- Aurora - Aurora may be seen as low as Alabama and northern California.
Geophysical Alert Message Issued: Jan 19th, 2026 2:36:20 pm
Space Weather Message Code: SUMSUD
- Serial Number: 293
- Issue Time: 2026 Jan 19 1936 UTC
- SUMMARY: Geomagnetic Sudden Impulse
- Observed: 2026 Jan 19 1920 UTC
- Deviation: 97 nT
- Station: BOU
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
Geophysical Alert Message Issued: Jan 19th, 2026 2:30:40 pm
Space Weather Message Code: ALTK07
- Serial Number: 201
- Issue Time: 2026 Jan 19 1930 UTC
- ALERT: Geomagnetic K-index of 7
- Threshold Reached: 2026 Jan 19 1931 UTC
- Synoptic Period: 1800-2100 UTC
- Active Warning: Yes
- NOAA Scale: G3 - Strong
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
- Potential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.
- Induced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.
- Spacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.
- Navigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.
- Radio - HF (high frequency) radio may be intermittent.
- Aurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon.
Geophysical Alert Message Issued: Jan 19th, 2026 2:27:40 pm
Space Weather Message Code: WARK05
- Serial Number: 2175
- Issue Time: 2026 Jan 19 1927 UTC
- EXTENDED WARNING: Geomagnetic K-index of 5 expected
- Extension to Serial Number: 2174
- Valid From: 2026 Jan 19 1902 UTC
- Now Valid Until: 2026 Jan 20 2359 UTC
- Warning Condition: Persistence
- Comment: Correction for end time.
- 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 19th, 2026 2:28:37 pm
Space Weather Message Code: WARK04
- Serial Number: 5226
- Issue Time: 2026 Jan 19 1928 UTC
- EXTENDED WARNING: Geomagnetic K-index of 4 expected
- Extension to Serial Number: 5225
- Valid From: 2026 Jan 16 0254 UTC
- Now Valid Until: 2026 Jan 21 0300 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 19th, 2026 2:22:56 pm
Space Weather Message Code: ALTK05
- Serial Number: 1946
- Issue Time: 2026 Jan 19 1922 UTC
- ALERT: Geomagnetic K-index of 5
- Threshold Reached: 2026 Jan 19 1922 UTC
- Synoptic Period: 1800-2100 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 19th, 2026 2:24:03 pm
Space Weather Message Code: ALTK06
- Serial Number: 682
- Issue Time: 2026 Jan 19 1924 UTC
- ALERT: Geomagnetic K-index of 6
- Threshold Reached: 2026 Jan 19 1923 UTC
- Synoptic Period: 1800-2100 UTC
- Active Warning: Yes
- 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: Jan 19th, 2026 2:06:13 pm
Space Weather Message Code: WARK05
- Serial Number: 2174
- Issue Time: 2026 Jan 19 1906 UTC
- WARNING: Geomagnetic K-index of 5 expected
- Valid From: 2026 Jan 19 1902 UTC
- Valid To: 2026 Jan 20 0900 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.
Geophysical Alert Message Issued: Jan 19th, 2026 2:09:49 pm
Space Weather Message Code: WARSUD
- Serial Number: 249
- Issue Time: 2026 Jan 19 1909 UTC
- WARNING: Geomagnetic Sudden Impulse expected
- Valid From: 2026 Jan 19 1920 UTC
- Valid To: 2026 Jan 19 2000 UTC
- IP Shock Passage Observed: 2026 Jan 19 1903 UTC
- NOAA Space Weather Scale descriptions can be found at
- www.swpc.noaa.gov/noaa-scales-explanation
