Geomagnetic storms occur when charged particles from the sun collide with Earth’s atmosphere, creating auroras.

A severe geomagnetic storm watch was issued by NOAA on Tuesday in response to recent coronal mass ejections from the sun.

Vivid auroras lit up skies across North America and Europe as a severe G4 geomagnetic storm, one of the strongest this solar ...

NOAA’s Space Weather Prediction Center (SWPC) has issued a Severe Geomagnetic Storm Watch for Wednesday, November 12, 2025.

A surge of solar fury has swept across Earth’s magnetic shield, producing a rare G4-level geomagnetic storm that turned skies ...

The United States weather agency has issued a G4 geomagnetic storm watch alert, implying severe storms expected.

As the northern lights lit up skies across the U.S., here's how agencies braced for potential disruptions to power grids and ...

Get ready for a strong solar storm that could push the Northern Lights much farther south than we typically see. The Space ...

A G4-level geomagnetic storm is one of the most extreme on the classification scale, and on November 11, it electrified the ...

A severe geomagnetic storm caused the northern lights to dazzle across the sky on Tuesday night. Vincent Ledvina, an aurora ...

Officials say the CME is expected to arrive at and partially impact Earth around mid-day on November 12. “The potential for ...

The northern lights dazzled Americans across much of the Lower 48 on Tuesday night, caused by a geomagnetic storm that reached G4 intensity.