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G4 Geomagnetic storm tonight


Armybrat

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  • 4 months later...

I've been tracking this stuff for a handful of years.  Buckle up, Solar Max is a real season and we are in it.  

Check out the app, space weather live.  Will give you all the alerts.  Also, get ready for more aurora down in Texas over the next year or so. 

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https://www.bbc.com/news/articles/cy437gnp28zo

Apparently 2 storms expected to hit over the weekend...

Spoiler

A huge solar flare, the largest since 2017, has been spotted erupting from the Sun’s surface.

Solar flares are made up of electromagnetic radiation that travel from the Sun at the speed of light and can reach Earth in about eight minutes.

They can disrupt some radio communications and satellites but most of us are unlikely to see those effects.

There is also a chance that northern latitudes could see the Northern Lights this weekend as two geomagnetic storms are predicted to hit Earth.

 
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Solar flares do not cause the Northern Lights. They are caused by a phenomenon called coronal mass ejections (CMEs) that erupt from an active sun spot.

Combined with flares, they can create solar storms that interact with Earth's magnetic field or magnetosphere.

The CMEs spew out plasma and magnetic field, and up to billions of ton of material, that can hit Earth. As our magnetosphere repels the storm, it creates the aurora.

“There is the potential for a coronal mass ejection to arrive at Earth late on Friday or early on Saturday, which could lead to visible aurora for Scotland, Northern Ireland and parts of northern England,” said Met Office Space Weather Manager Krista Hammond.

 

Getty Images Northern Lights in Culloden, ScotlandGetty Images
 
Aurora may be seen in the UK and the US this weekend
 
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A second CME is likely to hit Earth on Saturday and Sunday, associated with the solar flare which is rated X9.

That means “enhanced auroral visibility is possible further south across central England and similar latitudes, though cloud and rain could hamper viewing potential for some,” says Krista Hammond.

In the US, aurora might be seen in the northern states, and from the mid-west to Oregon, according to NOAA’s Space Weather Prediction Centre.

The X9 solar flare emitted is the largest categorised by Nasa. The smallest is B, followed by C, M, and X. The scale ranks from 1 to 9, so X9 is the most powerful in Nasa's ranking.

A graphic showing the Sun, the Earth and the magnetosphere
 
We see aurora when solar storms reach Earth's magnetic field

 

Edited by morehornsepower
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