Overview
- NOAA’s latest view line for Tuesday shows potential visibility in parts of Alaska, Idaho, Minnesota, Montana, North Dakota, Washington and Wisconsin.
- A G1 (minor) geomagnetic storm on Monday pushed the aurora farther south, with Kp values near 4–5 and sightings favored across a wider swath of northern states.
- The activity is being driven by a fast solar wind stream from an Earth‑facing coronal hole, and short‑term timing remains variable based on real‑time solar wind conditions.
- Tuesday’s best viewing window is 10 p.m. to 2 a.m. local time, with the highest odds in dark locations facing north and away from city lights and cloud cover.
- Forecasters expect the solar wind influence to persist through midweek, with a weaker reach than Monday and the potential for a Dec. 24 boost if a coronal mass ejection arrives.