Overview
- NOAA projects minor G1 geomagnetic activity Saturday night into early Sunday, keeping northern lights possible for parts of Canada and the northern United States.
- The setup comes from a coronal hole on the Sun that is sending a fast solar wind stream which is stirring Earth’s magnetic field.
- Likely viewing zones include Alaska and the far northern parts of Washington, Idaho, Montana, North Dakota, Minnesota, Wisconsin, Michigan and Maine, with visibility most likely low on the northern horizon.
- The best window runs about 10 p.m. to 2 a.m. local time under clear, dark skies at the new moon, and NOAA’s 30‑minute aurora map and apps that use DSCOVR solar-wind data help track real-time changes.
- Forecasts earlier in the period briefly cited G2 potential and Kp near 4–5 on Thursday and Friday, but current guidance centers on G1 conditions through Saturday.