Northern Lights Visible Across 22 US States Tonight
Auroras may be seen from Alaska to Illinois as geomagnetic storm conditions are expected to persist tonight. Earth is preparing for the arrival of a powerful coronal mass ejection (CME) launched during yesterday's M7.4 solar flare, which could significantly enhance the northern and southern lights.
Incoming Solar Storm
The fast-moving CME is predicted to reach Earth late tonight or early Friday morning (UTC), potentially causing strong (G3) geomagnetic storm conditions, according to NOAA's Space Weather Prediction Center. This follows a surprise aurora display overnight triggered by a glancing CME combined with the effects of a high-speed solar wind stream. These factors pushed geomagnetic activity to G3 levels, producing auroras across the northern U.S., Canada, and Europe.
Storm Watches and Potential Impact
- Both NOAA and the Met Office have issued G3 storm watches for November.
- If the CME's magnetic orientation aligns well with Earth's magnetic field, auroras could intensify across high and possibly mid-latitude areas.
Space weather physicist Tamitha Skov said, "An aurora photographer's dream starting now and lasting at least through the weekend," adding that G3 to G4 storm levels might occur by Friday as multiple CMEs interact with Earth's magnetic field.
The approaching solar activity promises spectacular aurora displays for many observers across North America and beyond.
Author's summary: A strong solar storm expected tonight may produce vivid aurora displays across 22 US states, offering a rare and prolonged spectacle for skywatchers.
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