A spectacular solar X4.9 solar flare from returning sunspot group AR 1967 on Feb. 25 wasn’t supposed to have much affect on Earth. Surprise! Even though the plasma blast shot off to one side of the sun’s disk, our planet’s magnetic bubble received a glancing blow from the explosion this afternoon. Talk about explosion – swarms of electrons and protons left the sun at an estimated 4.4 million mph!
As of 5 p.m. CST, a moderate G2 geomagnetic storm is in progress with strong auroras flaring up over across Europe as far south as southern Germany. Should the activity continue, skywatchers in the northern U.S. and possibly farther south will have a good chance at seeing the northern lights tonight. With no moon present, conditions will be ideal for aurora watching. Start looking as soon as possible after twilight ends this evening.
Click HERE to see the extent of the auroral oval, which will help you determine if northern lights might be visible from your location. I’ll update as needed. Good luck!
UPDATE 9 p.m. CST: Aurora out here in Duluth as a so-far quiet bright arc low in the northern sky.