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Geomagnetic Storm Watches Are in Effect through December 11

Thread starter ARRL
Start date Dec 9, 2020

ARRL

Well-Known Member

Dec 9, 2020

NOAA’s Space Weather Prediction Center (SWPC) reports that geomagnetic storm watches are in effect through December 11, due to the effects of a direct coronal mass ejection (CME) collision with the Earth’s magnetosphere from December 9 until December 11. The CME eruption was associated with a C7 solar flare erupting from Sunspot Region 2790 on December 7.

Arrival of a shock wave associated with...

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Geomagnetic Storm Watches Are in Effect through December 11

ARRL

Well-Known Member

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