Space Weather
From NOAA Space Weather Prediction Center, refreshed every 15 minutes.
6.00
Kp index
Moderate Storm
Solar wind
707 km/s
Aurora · north
57%
Aurora · south
34%
Active alerts
Geomagnetic K-index of 5 expected
May 15, 2026 11:56 PM UTC
minor
Geomagnetic K-index of 5 expected
May 15, 2026 11:56 PM UTC
Space Weather Message Code: WARK05 Serial Number: 2235 Issue Time: 2026 May 15 2356 UTC EXTENDED WARNING: Geomagnetic K-index of 5 expected Extension to Serial Number: 2234 Valid From: 2026-05-15T13:05:00 Now Valid Until: 2026-05-16 09:00 Warning Condition: Persistence Extended 2026-05-15 23:55 by Forecaster User Extended 2026-05-15 23:55 by Forecaster User 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.
Geomagnetic K-index of 6
May 15, 2026 10:15 PM UTC
moderate
Geomagnetic K-index of 6
May 15, 2026 10:15 PM UTC
Space Weather Message Code: ALTK06 Serial Number: 717 Issue Time: 2026 May 15 2215 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2026 May 15 2215 UTC Synoptic Period: 2100-2400 Active Warning: YES Noaa Scale: G2 - Moderate Comment: 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.
Geomagnetic K-index of 6 expected
May 15, 2026 10:02 PM UTC
moderate
Geomagnetic K-index of 6 expected
May 15, 2026 10:02 PM UTC
Space Weather Message Code: WARK06 Serial Number: 660 Issue Time: 2026 May 15 2202 UTC WARNING: Geomagnetic K-index of 6 expected Valid From: 2026 May 15 2201 UTC Valid To: 2026 May 16 0300 UTC Warning Conditions: Onset Noaa Scale: G2 - Moderate Comment: 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.
Type II Radio Emission
May 15, 2026 5:18 PM UTC
minor
Type II Radio Emission
May 15, 2026 5:18 PM UTC
Space Weather Message Code: ALTTP2 Serial Number: 1487 Issue Time: 2026 May 15 1718 UTC ALERT: Type II Radio Emission Begin Time: 2026 May 15 1616 UTC Estimate Velocity: 529 km/s Comment:
Geomagnetic K-index of 5
May 15, 2026 4:07 PM UTC
minor
Geomagnetic K-index of 5
May 15, 2026 4:07 PM UTC
Space Weather Message Code: ALTK05 Serial Number: 2019 Issue Time: 2026 May 15 1607 UTC ALERT: Geomagnetic K-index of 5 Threshold Reached: 2026 May 15 1606 UTC Synoptic Period: 1500-1800 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.