In The News – Severe Geomagnetic Storm dazzles Tahoe skies with Northern Lights
November 12, 2025 | Member Submitted
Originally published in the Tahoe Daily Tribune, 11/12/2025, Written by Katelyn Welsh
The internet is flooding with images of last night’s Northern Lights, visible from Lake Tahoe with the naked eye. A long exposure photo can capture even more of the aurora activity.
The storm was strongest between the hours of 5-10 p.m. with values between 8 and 9-minus on the Kp index, which values geomagnetic activity based on magnetometers around the world.
According to NOAA that makes it a G4 or Severe geomagnetic storm. Storms of this magnitude can be seen from northern California. Had it reached a Kp 9, it would have been considered a extreme storm, potentially visible from places as low as Florida and Southern Texas.
Photo: TDT