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 Thunderstorms Expected Across The South Friday

Severe Thunderstorms Expected Across The South Friday

A frontal boundary stretched across half of t

2 May 2025 12:40 PM
Big Pattern Shake Up for the West Upcoming

Big Pattern Shake Up for the West Upcoming

A huge digging upper level low is heading fro

2 May 2025 11:55 AM
Rainy Forecast Could Disrupt Kentucky Derby Week Events

Rainy Forecast Could Disrupt Kentucky Derby Week Events

Louisville is gearing up for the 151st Kentuc

2 May 2025 11:30 AM
Flooding Threat Continues in Oklahoma Friday Morning

Flooding Threat Continues in Oklahoma Friday Morning

The forecast remains wet in the southern plai

2 May 2025 3:00 AM
Storms Back in the Ohio Valley and Northeast Tonight

Storms Back in the Ohio Valley and Northeast Tonight

OHIO VALLEY - After a very stormy and wet mon

2 May 2025 2:50 AM
Rain For Denver, Snow For The Mountains

Rain For Denver, Snow For The Mountains

A cold front and area of low pressure slide t

1 May 2025 12:25 AM
Rain This Week Douses Fire Concerns Today

Rain This Week Douses Fire Concerns Today

Fire weather concerns have been all too commo

29 Apr 2025 6:40 PM