A powerful solar storm caused early auroras visible across 11 northern U.S. states on February 4–5.

A strong X-class solar flare on February 1 triggered a coronal mass ejection that reached Earth earlier than expected, increasing the chance of visible northern lights across 11 northern U.S. states on February 4–5. NOAA predicts G1–G2 geomagnetic storm conditions, potentially allowing auroras to be seen in Washington, Idaho, Montana, Wyoming, North Dakota, South Dakota, Minnesota, Wisconsin, Michigan, Maine, and Alaska. Best viewing is between 10 p.m. and 2 a.m. from dark, clear locations away from city lights. A second flare on February 4 may extend activity into the weekend. Real-time forecasts and smartphone cameras are recommended due to rapidly changing conditions.