Aurora Likely Visible Early Tuesday Morning for the Northern U.S.

news image
Special Stories
19 Sep 2023 2:25 AM

An aurora could be visible tonight for the northern tier of the United States as a Coronal Mass Ejection (CME) event peaks solar radiation! The best time to view the aurora will be 4 - 7 AM Central Time, but the earlier the better due to the dark conditions. Overnight will be a new moon so very little moonlight will detract from the aurora visibility.

According to the Geophysical Institute at the University of Alaska Fairbanks, the aurora will be visible through Tuesday morning from "Helena [MT to] Minneapolis [MN to] Milwaukee [WI to] Bay City, Toronto [Canada to] Montpelier [Vermont]" The aurora may even be visible along the horizon for Boise, ID, Lincoln, NE, Indianapolis, IN and Annapolis, MD!

The reason for the aurora is from a Coronal Mass Ejection (CME) that is expected on Tuesday. The "K-index" is used to "characterize the magnitude of geomagnetic storms" according to NOAA. Tuesday's K-index will be on the order of mid-levels. According to NOAA, "Kp is an excellent indicator of disturbances in the Earth's magnetic field and is used by [space weather prediction center] to decide whether geomagnetic alerts and warnings need to be issued for users who are affected by these disturbances".

For more on geomagnetic storms and potential impacts for the U.S., watch Meteorologist Alana Camera as she heads inside the Space Weather Prediction Center located in Boulder, CO!

All Weather News
More
Severe Threat Looms This Weekend

Severe Threat Looms This Weekend

Here we go again. After what looks like a lar

7 Apr 2026 10:25 AM
Windy System Blows in Midweek

Windy System Blows in Midweek

If it's not a foot and a half of snow in the

7 Apr 2026 10:20 AM
Florida: Rain Coming to Drought-Stricken State

Florida: Rain Coming to Drought-Stricken State

A low-pressure system that moved over Texas b

7 Apr 2026 10:15 AM
Farthest Humans Ever from Earth: Artemis II

Farthest Humans Ever from Earth: Artemis II

NEW RECORD - At 1:56 PM ET on Monday, April 6

7 Apr 2026 10:10 AM
West Pattern: Moisture Returns

West Pattern: Moisture Returns

The drought conditions have started to increa

7 Apr 2026 1:15 AM
Severe Storms Push East Easter Sunday

Severe Storms Push East Easter Sunday

Several rounds of severe storms have tracked

5 Apr 2026 10:55 PM
Cold Front Ends Record Heat

Cold Front Ends Record Heat

Unseasonably warm air is taking over much of

5 Apr 2026 10:20 AM