Aurora Borealis over Arapahoe Basin.
Aurora Borealis over Arapahoe Basin.

If you missed last night’s dazzling light show, worry not. The aurora borealis could once again be visible across a large portion of the United States tonight, with a G2 watch continuing into this evening.

Two coronal mass ejections (CME) erupted from the Sun on November 7th and 9th. While the first CME resulted only in some Minor Geomagnetic Storms on November 10th, that second CME led to the Moderate Geomagnetic Storms that caused the Aurora last night and might cause it again tonight.

According to theย Space Weather Prediction Center, effects from these storms will likely remain minor, potentially causing some manageable impacts on technological infrastructure. The storms have had, and might continue to have, a serious impact on the Aurora Borealis. Effects from these geomagnetic storms are expected to be minor, potentially having some manageable impacts on some technological infrastructure. The impact on the Aurora Borealis, however, could be a bit more dramatic.

Aurora Borealis viewline forecast for November 12th.
Aurora Borealis viewline forecast for November 12th. Credit: NOAA

NOAAโ€™s Aurora Viewline Forecast shows that the northern lights could be visible from as far south as Missouri, stretching across much of the northern lower 48. It’s exciting news, but it’s important to remember that the forecast doesnโ€™t guarantee the Northern Lights will be visible from these states, nor does it ensure that the Northern Lights wonโ€™t be visible from states further south. Make sure to keep an eye on the 30 minute forecast if you’re hoping to spot the Aurora Borealis for yourself.



Nolan Deck is a writer for Unofficial Networks, covering skiing and outdoor adventure. After growing up and skiing in Maine, he moved to the Denver area for college where he continues to live and work...