The sunspot responsible for the odd series of strong solar flares is so big you can see it with your own eyes from Earth.
An 'extreme' G5 geomagnetic storm reached Earth on Friday, NOAA's Space Weather Prediction Center said, after issuing a watch earlier in the day warning of the potential for a severe impact. The watch followed days of solar activity that sent several explosions of plasma and magnetic fields toward Earth. G5 is the strongest level of geomagnetic storm, on a scale from G1 to G5. 'Widespread voltage control problems and protective system problems can occur,' NOAA warns.
' He said officials are expecting a 'big shock arrival' when they hit Earth. Dahl said at the time that while officials weren't predicting a G5 storm — the strongest of geomagnetic storms — they couldn't discount a 'low-end G5 event.''We're really buckling down here,' Brent Gordon, chief of the space weather services branch, also said on the call.
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