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Listen up over on YouTube and on the radio here or wherever you happen to be listening in on. Severe geomagnetic storm watch. Strong G3 to severe G4 geomagnetic storms are possible on November 12th and 13th. Actually, they're going on right now. Technically, it is the 12th if you want to talk about UPC. There you go. In response to three CMEs now approaching Earth, this includes a potent CME from today's X5 flare, which is moving so fast it might overtake and sweep up the CMEs ahead of it. The arrival of such a cannibal CME could spark auroras in more than half of U.S. states. Ground level event is underway. Today's X5 class solar flare from Sunspot 4274 hurled a few slate of energetic photons toward Earth. Some of the particles are so powerful they are penetrating the atmosphere all the way to the ground. This is a very significant event, says Professor Clive Dyer, of the Surrey Space Centre. Neutron monitors around the world are detecting it. This is called a ground level event or GLE. GLEs of this magnitude are rare. They happen only once or twice every solar cycle. This one is comparable to the GLE of December 13th, 2007. This is a 20-year event for comparison. During the 2006 GLE, passengers on high altitude air flights experienced a peak dose rate of 25 to 30 microsieverts per hour at cruising altitude. This translated to an estimated 20% increase in the total effective radiation dose. Something similar may be happening now. Analysis of today's GLE will help us prepare for larger events such as the repeat of 23 February, 2019, which is soon to have its 70th anniversary and gave a thousand fold increase in radiation at 40,000 feet, says Dyer. Meanwhile, in space, the solar photons are peppering satellites, creating a hailstorm in imaging systems. So, go out and take a look at the skies.
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