GEOMAGNETIC STORM WATCH (G1-CLASS) AND A 'CANYON OF FIRE' JUST OPENED ON THE SUN AND THE SOUTHERN LIGHTS (04/04/22)

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GEOMAGNETIC STORM WATCH (G1-CLASS): A minor geomagnetic storm is possible this week in response to a pair of approaching CMEs. The first CME, launched by an M4-class flare from departing sunspot AR2975, could graze Earth's magnetic field on April 6th. The second CME, flung away from the sun by an exploding filament of magnetism (described below), might deliver a glancing blow on April 7th. Their combined effect could produce G1-class storming. Aurora alerts: SMS Text

A 'CANYON OF FIRE' JUST OPENED ON THE SUN: Yesterday, April 3rd, a filament of magnetism whipsawed out of the sun's atmosphere. On the way out it carved a gigantic canyon of fire. NASA's Solar Dynamics Observatory recorded the eruption:

The glowing walls of the canyon are at least 20,000 km high and 10 times as long. They trace the channel where the filament (R.I.P.) was previously suspended by magnetic forces inside the sun's atmosphere.

A coronal mass ejection (CME) has since emerged from the blast site. Here it is. The expanding cloud will probably sideswipe Earth's magnetic field on April 7th.

 

THE SOUTHERN LIGHTS: What should you do when a CME hits Earth's magnetic field? "Get on a plane," says Ian Griffin of the Otago Museum in Dunedin, New Zealand. On April 1, 2022, he joined 270 aurora chasers on a flight toward the Antarctic Circle--and this is what they saw:

Just hours before the plane took off, a Cannibal CME had hit Earth's magnetic field. In the northern hemisphere, auroras appeared as far south as Colorado and Nebraska. They did not compare, however, to the colorful light show Griffin witnessed.

"The enthusiasts on board were treated to a wonderful display of aurora australis," says Griffin. "To see the lights, we chartered a Boeing 767 out of Christchurch and spent 10 hours in the air. For a while we were south of latitude -60 degrees."

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