States from New York to Idaho may get the Aurora Borealis due to a powerful solar flare, leading to a G2 geomagnetic storm alert by NOAA's Space Weather Prediction Center.
Auroras will vary in appearance depending on the geomagnetic storm's intensity and time of night. They can resemble flowing curtains, twist and sway, or appear cloud-like near dawn, with clearer skies needed for observation.
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