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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
25 SEP-26 SEP ACTIVE STORM G1
26 SEP-27 SEP ACTIVE STORM G1
27 SEP-28 SEP QUIET STORM G1

For more information about the forecast and activity categories see
geomag.bgs.ac.uk/education/activitylevels.html

Activity during last 24 hours

Global   Local (UK)
Date Average Max At time (UT) Average Max At time (UT)
24 SEP-25 SEP QUIET ACTIVE 12:00-15:00 QUIET ACTIVE 12:00-15:00

Additional Comments

Solar wind speed remains enhanced and despite a brief decline yesterday it is increasing again, and we expect some further enhancements over the next couple of days due to the influence of a recurrent northern polar coronal hole and it's southward extensions. The effects of the current coronal hole high speed stream (CHHSS) should decline somewhat towards the end of weekend, before we see the influence of the next CHHSS early next week.
ACTIVE conditions are to be expected throughout the forecast period, with a possibility of some occasional STORM G1, although this becomes less likely nearer day three, as coronal hole influences temporarily wane. Solar activity remains low and there are no known Earth-directed CMEs.
Time of forecast: 25 Sep 2020
© UKRI 2020