NOAA’s Space Weather Prediction Center (SWPC) has issued a G2 (moderate) geomagnetic storm watch for August 4, and a G1 (minor) watch for August 5. “A coronal hole high-speed stream, originating from a recurrent, positive polarity coronal hole…is likely to cause geomagnetic storming at the G2 level on 4 August 2017, and at the G1 […]
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