Heads up aurora chasers! The northern lights could put on a spectacular show tonight (Nov. 11-12) as two incoming coronal mass ejections (CMEs) may spark geomagnetic storm conditions, according to the National Oceanic and Atmospheric Administration (NOAA).

Space weather forecasters anticipate that geomagnetic activity may intensify to strong (G3) conditions overnight.

Aurora forecast viewline for tonight, courtesy of NOAA’s Space Weather Prediction Center. (Image credit: Map: NOAA Space Weather Prediction Center, Background added in Canva Pro.)

latest NOAA aurora forecast map, the following 21 U.S. States appear fully or partially above the aurora view line:

AlaskaNorth DakotaMinnesotaMontanaWisconsinMichiganMaineSouth DakotaIdahoVermontWashingtonNew HampshireWyomingNew YorkIowaMassachusettsPennsylvaniaNebraskaOhioIllinoisIndiana

But remember, auroras are fickle; sometimes they appear much farther south than predicted, and other times they barely show up at all. Many conditions have to align for the perfect display.

NOAA’s 3-day forecast, geomagnetic storm activity is expected to stay high with the best chances of auroras during the following key times tonight:

4 p.m. – 10 p.m. EST (2100-0300 GMT): Minor (G1) to moderate (G2) storm levels possible.10 p.m. – 1 a.m. EST (0300-0600 GMT): Strong (G3) storm levels possible.


NOAA’s geomagnetic storm watch Nov. 11-13. (Image credit: NOAA’s Space Weather Prediction Center)

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.