The following announcement was made by the SpaceWeatherPredictionCenter on Monday at about 12:30 p.m.: “A G3 (Strong) geomagnetic storm watch is in effect for 31 Dec, with a G1 (Minor ...
The National Oceanic and Atmospheric Administration's SpaceWeatherPredictionCenter issued an alert Sunday night that the aurora borealis may be visible at high latitudes on Dec. 30 and 31 ...
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