The northern lights may put on another show across the U.S. tonight as speedy solar wind from an Earth-facing coronal hole is forecast to spark minor (G1) geomagnetic storm conditions, according to the National Oceanic and Atmospheric Administration’s (NOAA) Space Weather Prediction Center.

Geomagnetic activity is expected to reach minor (G1) storm levels overnight, which could be good news for aurora chasers as it raises the chance of seeing the northern lights in mid-latitudes.

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Aurora forecast for tonight (Dec. 23) courtesy of NOAA’s Space Weather Prediction Center. (Image credit: Map: NOAA Space Weather Prediction Center, graphic created in Canva Pro by Daisy Dobrijevic.)

aurora forecast map, the following 10 U.S. states appear fully or partially above the aurora view line:

  1. Alaska
  2. Washington
  3. North Dakota
  4. Minnesota
  5. Montana
  6. Maine
  7. Michigan
  8. Wisconsin
  9. South Dakota
  10. Idaho

Remember, auroras can be fickle creatures. The list is based on current forecast data, but if conditions strengthen and skies are clear, auroras could reach much farther south than expected.

Then again, if conditions don’t align, we might end up with a “nothing burger” and no auroras at all.

NOAA’s 3-day forecast, geomagnetic storm activity is expected to be best at the following times:

  • 4 p.m. – 7 p.m. EST (2100-0000 GMT): Minor G1 level storming possible

iOS and Android. However, any similar app should work well.

I also use the “Space Weather Live” app, which is available on iOS and Android, to get a deeper understanding of whether the current space weather conditions are favorable for aurora sightings. Want to capture the perfect photo? Our how to photograph auroras guide can help.