The Night Sky Comes Alive: A G-2 Geomagnetic Storm May Unleash Aurora Borealis Over Northern Hemisphere

On April 23, a geomagnetic storm may trigger an aurora borealis over the Northern Hemisphere from the evening until the next morning. Some states in the U.S.-Canadian border region may most likely witness the Northern Lights. A G-2 level on the Geomagnetic Storm Impact scale is expected to hit Earth, according to NOAA’s Space Weather Prediction Center.

A G-2 event is fairly common and happens about every 360 days over an 11-year cycle. Northern power systems may experience voltage alarms, spacecraft may exhibit orbit changes, and radio frequencies can fade at higher latitudes, according to NOAA. Clear night skies in some northern states like from Washington to Maine, may have a chance to see the aurora.

Unexpectedly Ferocious Solar Storm Triggers Stunning Auroras and Launch Delay

On Friday, a solar flare erupted on the sun and was directed towards Earth, triggering an aurora borealis that was visible in 18 states. The level of geomagnetic activity is measured on the Kp index scale, which ranges from 0 to 9. The highest value expected for the upcoming event on the Kp index was a 6.3 as of Saturday.

SUNDAY NIGHT NORTHERN LIGHTS FORECAST:
Aurora viewing will be possible in the United States on Sunday night into Monday morning before sunrise, provided that today's likely Earth-directed coronal mass ejection (CME) impacts Earth as forecast–more details below.
Current estimates… pic.twitter.com/CzbKICdXq1
— Space Weather Watch (@spacewxwatch) April 22, 2023

Cloud cover can affect viewing, but most of the Midwest is expected to be nearly cloud-free. The chance to observe the aurora would sink further south if the storm is stronger than expected. The Space Weather Prediction Center has issued a G2 geomagnetic storm watch for Sunday night. There is also a chance of G2 developing into G3 later in the night.

The best viewing time for the Northern Lights is typically between 10 p.m. and 2 a.m. local time. The late weekend event is expected to be much weaker than March’s severe geomagnetic storm. The Northern Lights will be possible to see in 18 states, depending on weather conditions like cloud coverage.

Washington
Idaho
Montana
Wyoming
North Dakota
South Dakota
Nebraska
Minnesota
Iowa
Michigan
Illinois
Indiana
Michigan
Pennsylvania
New York
Vermont
New Hampshire
Maine

Rahul Somvanshi

Rahul, possessing a profound background in the creative industry, illuminates the unspoken, often confronting revelations and unpleasant subjects, navigating their complexities with a discerning eye. He perpetually questions, explores, and unveils the multifaceted impacts of change and transformation in our global landscape. As an experienced filmmaker and writer, he intricately delves into the realms of sustainability, design, flora and fauna, health, science and technology, mobility, and space, ceaselessly investigating the practical applications and transformative potentials of burgeoning developments.

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