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Northern lights visited Washington again this week; what causes them

Oct 11, 2024, 11:45 AM | Updated: Oct 12, 2024, 9:20 am

Image: The northern lights can be seen from a neighborhood in Lake Stevens late on Thursday, Oct. 1...

The northern lights can be seen from a neighborhood in Lake Stevens late on Thursday, Oct. 10, 2024. (Photo: Sam Campbell, 成人X站 Newsradio)

(Photo: Sam Campbell, 成人X站 Newsradio)

Washington residents had a chance to see the dazzling phenomenon that is the northern lights Thursday night and they didn’t disappoint. For those who missed it, there was another chance to see them Friday night.

The (NOAA) predicted a level 3 geomagnetic storm again Friday night, with the aurora moving over Washington.

This is the aurora prediction for Friday, Oct. 11, 2024. (Image courtesy of NOAA)

However, NOAA stated via X, the storm will continue to diminish into the weekend, with a G1 watch in place for Saturday.

 

According to NOAA, a geomagnetic storm is a temporary disturbance of the Earth’s atmosphere caused by solar wind. When the energized particles reach Earth鈥檚 magnetic field, they interact with gases in the atmosphere to create those different colored lights in the sky.

Northern lights dazzled Washington skies Thursday

The National Weather Service Seattle posted several photos Thursday night, from the vantage point of its office and another one .

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成人X站 Newsradio’s Sam Campbell also captured a photo of the lights in Lake Stevens late Thursday night. (That photo is at the top of this story.)

Other than creating the northern lights, geomagnetic storms can affect power grids, satellite ops and GPS, outlined NOAA.

“Geomagnetic activity can vary considerably during storm progression with intermittent periods of escalation or weakening as the major disturbance in the solar wind continues,” NOAA stated.

The aurora, according to NOAA, moved over New York to north Iowa and Washington Thursday night.

This is the aurora prediction for Thursday, Oct. 10, 2024. (Image courtesy of NOAA)

To best view the lights,聽 suggested fans head outside of the city, away from light pollution. It recommended Deception Pass State Park, Mt. Rainier National Park and the North Cascades National Park. It also said the best time to view the lights in the Seattle-area was from 10 p.m. to 3 a.m.

NOAA also advises those who hope to see the northern lights to get away from city lights.

The best viewing time is usually within an hour or two before or after midnight, and the agency says the best occasions are around the spring and fall equinoxes due to the way the solar wind interacts with Earth鈥檚 magnetic field.

The last notable geomagnetic activity was Sept. 12, which was also a level G3.

Local news: Another earthquake hits Pacific Northwest bringing total to 87 in past month

What causes northern lights?

The sun sends more than heat and light to Earth 鈥 it sends energy and charged particles known as the solar wind. But sometimes that solar wind becomes a storm. The sun’s outer atmosphere occasionally “burps” out huge bursts of energy called coronal mass ejections. They produce solar storms, also known as geomagnetic storms, according to NOAA.

The Earth’s magnetic field shields us from much of it, but particles can travel down the magnetic field lines along the north and south poles and into Earth鈥檚 atmosphere.

When the particles interact with the gases in our atmosphere, they can produce light 鈥 blue and purple from nitrogen, green and red from oxygen.

Dahl said this storm generated a particularly vibrant display when it hit because the orientation of the storm鈥檚 magnetism lined up well with the Earth鈥檚. 鈥淲e stayed well connected,鈥 he said.

Why have there been so many solar storms lately?

Solar activity increases and decreases in a cycle that last about 11 years, astronomers say. The sun appears to be near the peak of that cycle, known as a solar maximum.

In May, the sun shot out its biggest flare in almost two decades. That came days after severe solar storms pummeled Earth and triggered auroras in unaccustomed places across the Northern Hemisphere.

There will likely be more to come. Dahl said we remain 鈥渋n the grip鈥 of the solar maximum and it isn’t likely to start to fade until early 2026.

“We鈥檙e in for more of the experiences we had last night,” he said.

Send your photos our way

If you capture some spring pictures or do get to see the northern lights, please share your photos with MyNorthwest on our聽Share With Us page.

Editors note: This story was originally published on Oct. 10, 2024. It has been updated and republished multiple times since then.

Contributing: The Associated Press; Steve Coogan, MyNorthwest

Julia Dallas is a content editor at MyNorthwest. You can read her stories聽here. Follow Julia on X聽聽and email her聽here.

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