Geomagnetic Storm to Reach Peak Strength, May Cause ‘Weak Power Grid Fluctuations’

Geomagnetic Storm to Reach Peak Strength, May Cause ‘Weak Power Grid Fluctuations’
A brilliant show of the aurora borealis near Yellowknife, N.W.T. is shown in the night sky on March 8, 2012. Bill Braden/The Canadian Press
Andrew Chen
Updated:

A minor geomagnetic storm is expected to reach peak strength on Thursday, and may cause “weak power grid fluctuations,” the U.S. Space Weather Prediction Center said.

The G1 geomagnetic storm was observed on Tuesday as its strength increased over the past few days, according to the center. An initial alert warned of possible “power system voltage irregularities” and false alarms on certain protection devices.