The Sciences

Powerful Solar Storm Could Yield Stunning Auroras Tonight

D-briefBy Nathaniel ScharpingOct 25, 2016 3:38 PM

Newsletter

Sign up for our email newsletter for the latest science news
 

(Credit: Petri jauhiainen/Shutterstock) If you go outside tonight and look up, you could witness the dazzling effects of some particularly stormy celestial weather. The Space Weather Prediction Center at NOAA issued an alert this morning warning of a "Strong" geomagnetic storm buffering the upper regions of our atmosphere. The resultant wave of charged electrons could trigger alarms on some power systems in high latitudes and throw off satellite navigation systems, but the most visible effect should be the presence of magnificent auroras reaching down into the continental United States. The storm began around 10 a.m. Eastern time, and should continue for another few hours. The storm is the result of an uncommonly large hole in the sun's corona, which ejects a high-velocity stream of electrons into space. When the Earth's orbit takes it through this stellar wind, the particles interact with our magnetic field creating the fiery light display we call the Northern Lights. The current event is labeled a G3 or "Strong" geomagnetic storm, on a scale that runs up to 5. Such events occur several times a year. During similar storms, auroras have been seen as low as Illinois and Oregon, according to the NOAA, and residents on a level with Pennsylvania and Iowa and blessed with a clear sky may be able to catch a glimpse of the heavenly light show tonight. The storm is predicted to last until around 2 p.m. Eastern today, but the auroras could continue well into the night. Those on the other side of the globe have already begun to catch glimpses of the aurora as the storm intensifies. The auroras should peak in North American just before dawn.

Unexpected Aurora last night over Culloden Battlefield. Pic: Ash Davidson pic.twitter.com/EQ1B81ePI1

— Being Scottish (@BeingScots) October 25, 2016

Captured my first Aurora at 5am this morning. Was very exciting! A level 6 expected tonight can't wait ? #Icelandpic.twitter.com/9ZcQpa1DgB — Emma McArdle (@McArdlePhoto) October 24, 2016

Finally clear skies! Got a glimpse of a weak aurora. #Kiruna@VirtualAstro@Photo_Spacepic.twitter.com/jQsSMWpqEc

— Mia Stålnacke (@AngryTheInch) October 24, 2016

1 free article left
Want More? Get unlimited access for as low as $1.99/month
Already a subscriber? Log In or Register
1 free articleSubscribe
Want unlimited access?

Subscribe today and save 70%

Subscribe

Already a subscriber? Log In or Register
More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 70% off the cover price when you subscribe to Discover magazine.

Copyright © 2021 Kalmbach Media Co.