# HF radio

NOAA Issues Alert After X‑Class Solar Flare; Minor Geomagnetic Storms Expected

NOAA warned that an X4.2 solar flare on Feb. 4 produced a G1 (minor) geomagnetic storm on Feb. 5, with further G1 activity possible on Feb. 6 and 8. Impacts are expected to be modest — chiefly HF radio interference, potential satellite anomalies and high‑latitude auroras — but the episode underscores growing space‑weather risks as active solar regions face Earth.