Sky‑Spectacle Alert: 15 U.S. States Could See the Northern Lights Tonight—Everything You Must Know Before You Look Up
NOAA forecasts G1–G2 geomagnetic storming on 25–26 June, with a peak Kp index of 5.67 driven by a 500 km/s solar wind from a large equatorial coronal hole. Auroras could be visible in up to 15 states, from Alaska and Washington to New York and New England. Minor power grid fluctuations, GPS errors, and HF radio disturbances are possible. The best viewing is expected around local midnight to 3 a.m.