‘Severe’ geomagnetic storm could spread Northern Lights south to California, Alabama Sunday night

[Pelican Press 0]

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‘Severe’ geomagnetic storm could spread Northern Lights south to California, Alabama Sunday night

A “severe” geomagnetic storm may be brewing early next week, and many Americans across the nation – perhaps even as far as the Deep South – may be treated to a rare display of the Northern Lights, according to NOAA’s Space Weather Prediction Center.

A powerful coronal mass ejection (CME), which is a burst of solar material and magnetic fields from the Sun, erupted on Friday night, triggering a Severe Geomagnetic Storm Watch, the SWPC said.

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The CME will reach Earth on Sunday, when it is expected to produce geomagnetic storms causing disruptions to the planet’s magnetosphere.

The Sun, from Saturday. Imaged by GOES-19 SUVI Composite 195 Angstroms.

The SWPC issued a level G3 out of 5 (Strong) Geomagnetic Storm Watch for Sunday, and

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for Sunday night into early Monday morning.

There is

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, which were the levels

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, that spread the Northern Lights to Florida and the Caribbean, according to the SWPC.

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While strong geomagnetic storms are harmless to human health, potential impacts include widespread problems with voltage control, along with some issues with the power grid. Additionally, spacecraft may see problems, such as low Earth orbit satellites experiencing increased drag. High-frequency radio signals may be disrupted.

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FILE: Northern lights (Aurora Borealis) illuminate the sky in Alaska’s Eklutna Tailrace, United States on March 09, 2025.

On the aesthetic side of things, the geomagnetic storm is expected to produce an aurora that will be visible over much of the northern half of the

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, with some of the displays potentially dipping down as far south as

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and northern

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.

The forecast looks favorable across much of the U.S., and even in the South except for the Desert Southwest, where remnants of Tropical Storm Alvin are

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.

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Impacts will lessen come Tuesday, when the geomagnetic storm levels are expected to subside.

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