WARNING: Geomagnetic K-Index of 6 expected

Issued: 2026-01-22 23:39:59.787
Severity: moderate
NOAA Scale: G2

Potential impacts

Array

NOAA alert text

Space Weather Message Code: WARK06
Serial Number: 638
Issue Time: 2026 Jan 22 2339 UTC

WARNING: Geomagnetic K-Index of 6 expected
Valid From: 2026 Jan 22 2339 UTC
Valid To: 2026 Jan 23 0900 UTC
Warning Condition: Onset
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.