Both NOAA’s Space Weather Prediction Center and the U.K. Met’s Space Weather Operations Centre have issued a G2-Moderate geomagnetic storm watch for April 2, due to the presence of a negative polarity coronal hole high speed stream (or CH HSS) facing the Earth. While this isn’t a full coronal mass ejection, coronal holes cause an increase in the speed and volume of the charged particles coming from the sun, and can affect Earth in similar, albeit more moderate, ways.
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