Moderate (G2) Geomagnetic Storms Expected - 21-22 March 2025
A Warning for G2 (Moderate) geomagnetic storms is valid for the remainder of 21 Mar, through 0600 UTC on 22 Mar, due to the arrival of a CME that left the Sun on 17 Mar.
NOAA Scales mini
R1 (Minor) Radio Blackout Impacts
HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact.
Navigation: Low-frequency navigation signals degraded for brief intervals.
More about the NOAA Space Weather Scales
Navigation: Low-frequency navigation signals degraded for brief intervals.
Moderate (G2) Geomagnetic Storms Expected - 21-22 March 2025