From Florida to Washington, Americans witness rare aurora borealis as solar storm hits Earth

A rare solar storm turns night skies electric

Brilliant streaks of red, green, and purple swept across U.S. skies this week as a powerful geomagnetic storm from the sun collided with Earth’s atmosphere. The light show stretched unusually far south — reaching as far as Texas, AL, and Florida — in one of the most vivid aurora displays seen in years.

Forecasters at the NOAA Space Weather Prediction Center confirmed that multiple coronal mass ejections (CMEs) struck Earth’s magnetic field beginning Tuesday, triggering a G4 “severe" geomagnetic storm — the second-highest level on a five-step scale. The storm briefly intensified overnight, with scientists warning it could reach the maximum G5 level.

A CME is a vast burst of plasma and magnetic energy released from the sun’s surface. When these charged particles collide with Earth’s magnetosphere, they create the luminous phenomenon known as the aurora borealis in the Northern Hemisphere and the aurora australis in the south.

Sky turns red, purple, and green

The night sky lit up in shades of violet, magenta, and emerald, with photographs and videos flooding social media from across North America. Residents reported seeing the lights in Ohio, IL, Wisconsin, and Michigan, while others as far south as Georgia and the Florida Panhandle caught rare glimpses of the dancing glow.
“It was surreal — the sky was alive," said one viewer from Birmingham, AL, describing shifting curtains of color stretching across the horizon.

NOAA’s forecast line showed at least 18 U.S. states positioned within viewing range late Tuesday through Wednesday, including Maine, MN, Montana, NY, Oregon, VT, and Washington. According to NOAA’s K-index scale, which measures geomagnetic activity, the event reached a level 6 out of 9, signaling a strong and visible aurora far from the poles.

The science behind the spectacle

Auroras occur when solar wind particles collide with atoms and molecules in Earth’s upper atmosphere. The different colors depend on the type of gas and altitude of the collision. Oxygen produces green and red hues, while nitrogen emits blue and purple tones.

This particular storm originated from a cluster of active sunspots that unleashed several CMEs over the weekend. “We believe the heart of the magnetic cloud is now passing over Earth," said Shawn Dahl, a forecaster with NOAA’s Space Weather Prediction Center in Boulder, CO. He noted that one of the strongest CMEs was expected to arrive later Wednesday, potentially reigniting aurora activity.

Potential impacts on Earth

While most people experienced the storm as a breathtaking celestial event, forecasters warned of possible power fluctuations, GPS errors, and radio disruptions. “Watches at this level are very rare," NOAA stated, adding that operators of power systems and satellite communications had been alerted.

The agency also reported intermittent degradation of high-frequency radios and minor navigation disturbances, particularly across northern regions. Still, no widespread outages or infrastructure failures were confirmed.

Where to look tonight

As the magnetic storm continues, more light displays may be visible into Wednesday night. The best viewing conditions are expected in northern New England, the Great Lakes region, and the Pacific Northwest, especially where skies remain clear.

Areas from the Dakotas through northern Minnesota, WI, and Michigan are forecast to have the clearest visibility. Cloud cover may obscure views in New York, ME, and the Pacific coast, but the aurora could still glow faintly above the northern horizon.

For most observers, the event serves as a reminder of the sun’s raw power and beauty. As one viewer from Montana put it, standing under the luminous sky: “You could almost feel the Earth breathing."