Space forecasters say a large geomagnetic storm hit Earth sooner — and with more force — than they projected Tuesday morning. And it could have impacts into the Southern U.S. overnight.
According to NOAA, the storm is courtesy of a pair of coronal mass ejections (CME) that left the sun Sunday, March 15 and reached Earth at 10 a.m. ET Tuesday. It ranked a class 4, which is considered severe on NOAA’s scale from 1-5, making it the strongest to hit since fall 2013.
“It’s significantly stronger than expected,” Thomas Berger, director of the Space Weather Prediction Center in Boulder, Colorado, told The Associated Press. Forecasters had predicted a glancing blow instead of dead-on hit. Another theory is that the combination of the two storms made it worse, but it’s too early to tell if that’s so, he said. via Strongest Geomagnetic Storm In Months Strikes Earth – weather.com.