Space Weather
From NOAA Space Weather Prediction Center, refreshed every 15 minutes.
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Kp index
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Solar wind
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Aurora · north
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Aurora · south
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Active alerts
Geomagnetic Storm Category G2 Predicted
October 9, 2026 4:36 PM UTC
moderate
Geomagnetic Storm Category G2 Predicted
October 9, 2026 4:36 PM UTC
Space Weather Message Code: WATA30 Serial Number: 285 Issue Time: 2026 Oct 09 1636 UTC WATCH: Geomagnetic Storm Category G2 Predicted Highest Storm Level Predicted by Day: Oct 09: G1 (Minor) Oct 10: G1 (Minor) Oct 11: G2 (Moderate) THIS SUPERSEDES ANY/ALL PRIOR WATCHES IN EFFECT Comment: Downgraded the G2 to a G1 watch for 09 Oct and added a G1 watch for 10 Oct 2026. 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.
Geomagnetic K-index of 4
October 9, 2026 10:01 AM UTC
minor
Geomagnetic K-index of 4
October 9, 2026 10:01 AM UTC
Space Weather Message Code: ALTK04 Serial Number: 2690 Issue Time: 2026 Oct 09 1001 UTC ALERT: Geomagnetic K-index of 4 Threshold Reached: 2026 Oct 09 1001 UTC Synoptic Period: 0900-1200 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.
Geomagnetic Storm Category G2 Predicted
October 9, 2026 8:12 AM UTC
moderate
Geomagnetic Storm Category G2 Predicted
October 9, 2026 8:12 AM UTC
Space Weather Message Code: WATA30 Serial Number: 284 Issue Time: 2026 Oct 09 0812 UTC WATCH: Geomagnetic Storm Category G2 Predicted Highest Storm Level Predicted by Day: Oct 10: None (Below G1) Oct 11: G2 (Moderate) Oct 12: None (Below G1) 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.
Geomagnetic K-index of 4 expected
October 9, 2026 1:29 AM UTC
minor
Geomagnetic K-index of 4 expected
October 9, 2026 1:29 AM UTC
Space Weather Message Code: WARK04 Serial Number: 5429 Issue Time: 2026 Oct 09 0129 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2026 Oct 09 0128 UTC Valid To: 2026 Oct 10 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.
Type II Radio Emission
October 8, 2026 4:46 PM UTC
minor
Type II Radio Emission
October 8, 2026 4:46 PM UTC
Space Weather Message Code: ALTTP2 Serial Number: 1531 Issue Time: 2026 Oct 08 1646 UTC ALERT: Type II Radio Emission Begin Time: 2026 Oct 08 1542 UTC Estimate Velocity: 4125 km/s Comment: ** Corrected for begin time. Type II speed recorded by Sagamore Hill RSTN site. CORRECTED