From NOAA SWPC:

Issue Time: 2024 May 10 1744 UTC

ALERT: Geomagnetic K-index of 8, 9-

Threshold Reached: 2024 May 10 1739 UTC

Synoptic Period: 1500-1800 UTC

Active Warning: Yes

NOAA Scale: G4 - Severe

NOAA Space Weather Scale descriptions can be found at

www.swpc.noaa.gov/noaa-scales-explanation

Potential Impacts: Area of impact primarily poleward of 45 degrees Geomagnetic Latitude.

Induced Currents - Possible widespread voltage control problems and some protective systems may mistakenly trip out key assets from the power grid. Induced pipeline currents intensify.

Spacecraft - Systems may experience surface charging; increased drag on low earth orbit satellites, and tracking and orientation problems may occur.

Navigation - Satellite navigation (GPS) degraded or inoperable for hours.

Radio - HF (high frequency) radio propagation sporadic or blacked out.

Aurora - Aurora may be seen as low as Alabama and northern California.