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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT)
Forecast Global Activity level
Average Max
22 SEP-23 SEP QUIET ACTIVE
23 SEP-24 SEP QUIET ACTIVE
24 SEP-25 SEP QUIET QUIET

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 (UTC) Average Max At time (UTC)
21 SEP-22 SEP QUIET STORM G1 06:00-09:00 QUIET STORM G1 06:00-09:00

Additional Comments

A slow-moving coronal hole high-speed wind stream from a smaller coronal hole that has rotated out of view of the solar disc has triggered a minor storm event in the early hours of this morning (UT). Solar activity is now in an enhanced state a result. We continue to expect a high chance of ACTIVE intervals occurring tomorrow (23-SEP) due to the coronal mass ejection event overlapping with influences from the high-speed wind stream.
Time of forecast: 22 Sep 2021
© UKRI 2020