Space Weather
From NOAA Space Weather Prediction Center, refreshed every 15 minutes.
3.00
Kp index
Quiet
Solar wind
-- km/s
Aurora · north
14%
Aurora · south
8%
Active alerts
Geomagnetic K-index of 4 expected
October 13, 2026 1:15 AM UTC
minor
Geomagnetic K-index of 4 expected
October 13, 2026 1:15 AM UTC
Space Weather Message Code: WARK04 Serial Number: 5433 Issue Time: 2026 Oct 13 0115 UTC WARNING: Geomagnetic K-index of 4 expected Valid From: 2026 Oct 13 0115 UTC Valid To: 2026 Oct 13 1500 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.
Geomagnetic Storm Category G1 Predicted
October 11, 2026 7:11 PM UTC
minor
Geomagnetic Storm Category G1 Predicted
October 11, 2026 7:11 PM UTC
Space Weather Message Code: WATA20 Serial Number: 1129 Issue Time: 2026 Oct 11 1911 UTC WATCH: Geomagnetic Storm Category G1 Predicted Highest Storm Level Predicted by Day: Oct 12: None (Below G1) Oct 13: G1 (Minor) Oct 14: 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 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.
Geomagnetic Storm Category G2 Predicted
October 11, 2026 5:02 PM UTC
moderate
Geomagnetic Storm Category G2 Predicted
October 11, 2026 5:02 PM UTC
Space Weather Message Code: WATA30 Serial Number: 286 Issue Time: 2026 Oct 11 1702 UTC CANCEL WATCH: Geomagnetic Storm Category G2 Predicted Cancel Serial Number: 285 Original Issue Time: 2026 Oct 09 1636 UTC Cancelled Level Predicted: Oct 11 : None (Below G1) Conditions no longer warrant a G2 Watch. 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 11, 2026 4:57 AM UTC
minor
Geomagnetic K-index of 4 expected
October 11, 2026 4:57 AM UTC
Space Weather Message Code: WARK04 Serial Number: 5432 Issue Time: 2026 Oct 11 0457 UTC EXTENDED WARNING: Geomagnetic K-index of 4 expected Extension to Serial Number: 5431 Valid From: 2026 Oct 09 0128 UTC Now Valid Until: 2026 Oct 11 1200 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.
Geomagnetic K-index of 5
October 10, 2026 9:45 PM UTC
minor
Geomagnetic K-index of 5
October 10, 2026 9:45 PM UTC
Space Weather Message Code: ALTK05 Serial Number: 2057 Issue Time: 2026 Oct 10 2145 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 Oct 10 2145 UTC Synoptic Period: 2100-2400 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.