A stronger-than-expected geomagnetic storm could deliver a rare Halloween northern lights show across a huge portion of the United States tonight.
NOAA just recorded a Kp 6 geomagnetic storm at 3:14 p.m. EDT Saturday, reaching the G2 “Moderate” level. That was stronger than the G1 storm originally forecast for Halloween, and scientists say it could grow even stronger before tonight.
NOAA says auroras during a G2 storm can potentially be seen as far south as Virginia, Missouri, and Northern California.
WARNING: Geomagnetic K-index of 6 expected
Valid From: 2026 Oct 31 1908 UTC
Valid To: 2026 Oct 31 2359 UTC
Warning Conditions: Onset
Noaa Scale: G2 – Moderate
Comment:
Issue Time: 2026 Oct 31 1908 UTC
https://t.co/Sq7yuY89ZB— NOAA Space Weather Prediction Center (@NWSSWPC) October 31, 2026
If you want the best possible shots with the brightest colors, you’ll need a long-exposure camera. Go to a very dark place where you have an unobstructed view toward the northern sky. The best place would be a remote mountain with north-facing views.
You can find the dark spots in your area using the official light pollution map here.
