Solar Flare Triggers Aurora Forecast for 10 U.S. States Thursday Night

A solar flare has sent a surge of charged particles toward Earth, and for the next three days—through Friday, August 29—the upper atmosphere will be lit by one of nature's most dramatic light shows. The National Oceanic and Atmospheric Administration's Space Weather Prediction Center has issued geomagnetic storm watches for the period, meaning that roughly ten states across the northern United States have a genuine chance of seeing the aurora borealis Thursday night and beyond.

The mechanics are straightforward: the sun has ejected material into space, and when that material reaches Earth's magnetosphere, it collides with oxygen and nitrogen in the upper atmosphere, producing the characteristic green and sometimes red glow that dances across the sky. These conditions don't happen often enough to take for granted. The timing is fortunate for anyone in the northern tier of the country who has wanted to witness the phenomenon but never had the opportunity.

Thursday night is expected to offer the best viewing window. The aurora typically appears as a faint glow on the horizon in the early evening, then intensifies as darkness deepens. Those hoping to see it should position themselves away from city lights—the darker the location, the better the chance of catching even a modest display. The aurora is not predictable down to the minute; it can flare suddenly and fade just as quickly, which is part of what makes chasing it an exercise in patience and luck.

The ten states positioned to see the aurora span much of the northern United States, from the upper Midwest through the Mountain West and into the Pacific Northwest. Residents in these regions who have never seen the northern lights before should understand that what appears in photographs—vivid, sweeping curtains of color—may look more subtle in person, especially if the geomagnetic activity is moderate rather than extreme. Even a faint aurora is worth the effort to witness.

NOAA's Space Weather Prediction Center will continue to update its forecasts as the solar material approaches and interacts with Earth's magnetic field. Anyone serious about viewing should check real-time space weather alerts and aurora forecasts throughout Thursday evening and into Friday. Cloud cover will be the enemy; clear skies are essential. The forecast period extends through August 29, meaning there may be additional opportunities on Friday night if Thursday's clouds prove troublesome.

This is a rare gift from the sun—a reminder that Earth sits within a dynamic system of stellar activity and magnetic fields. For those in the right place with clear skies and patience, Thursday night offers a chance to see something most people never do.