ST. LOUIS – With a G4 geomagnetic storm currently underway, the northern lights may be visible across the United States tonight.
The National Oceanic and Atmospheric Administration (NOAA) suggests that conditions, ranging from G1 to G3, will persist this evening. Because of that, it makes aurora sightings possible after dark, especially in states like Missouri and Illinois.
Skywatchers can remain alert for auroras after dark, although it is unknown how long the G4 conditions will last.
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