Northern Lights Expected Across 22 US States Tonight
Auroras may be visible from Alaska to Illinois due to ongoing geomagnetic storm conditions predicted for tonight. Both the northern and southern lights could intensify as Earth prepares for the arrival of a powerful coronal mass ejection (CME) launched during yesterday's M7.4 solar flare.
Details on the Incoming Solar Event
The fast-moving CME is expected to reach Earth late tonight or early Friday (Nov. 7) morning (UTC), potentially triggering strong G3 geomagnetic storm conditions, according to NOAA's Space Weather Prediction Center.
Recent Auroral Activity
A surprise surge in auroras occurred overnight due to a glancing CME combined with the lingering effects of a high-speed solar wind stream. This pushed geomagnetic activity to G3 levels, sparking visible auroras across the northern United States, Canada, and Europe.
Storm Watches and Forecast
- The Met Office and NOAA currently have G3 storm watches in effect for November.
- If the CME arrives as expected and Earth's magnetic field connects favorably, auroras could brighten across both high- and mid-latitude regions.
Expert Insight
Space weather physicist Tamitha Skov called the forecast "an aurora photographer's dream starting now and lasting at least through the weekend," noting that G3 to G4 storm levels might occur by Friday as multiple CMEs interact with Earth's magnetic field.
Summary: A powerful solar eruption is expected to enhance auroral displays across wide regions, offering a spectacular natural show through the weekend.