The Chicago area could be in for a treat this week, as a strong geomagnetic storm could trigger a vivid Northern Lights display.

According to the National Weather Service’s Space Weather Prediction Center, a geomagnetic storm watch has been issued for Tuesday after a powerful coronal mass ejection was reported this weekend.

That CME is projected to arrive in Earth’s atmosphere on Tuesday, meaning that the Northern Lights could be visible far south of their usual ranges.

The peak of the storm could be classified as a G3, or “strong,” geomagnetic storm, according to the SWPC.

A full-halo coronal mass ejection (CME), associated with an M8.1 flare from Region 4299 at 20:39 UTC on 06 December, is expected to impact Earth early to midday on 09 December, potentially causing periods of G3 (Str

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