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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
18 NOV-19 NOV QUIET ACTIVE
19 NOV-20 NOV QUIET QUIET
20 NOV-21 NOV QUIET ACTIVE

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)
17 NOV-18 NOV QUIET QUIET 21:00-03:00 QUIET QUIET 00:00-03:00

Additional Comments

Solar wind speed remains somewhat elevated but is continuing to decline as the previous Coronal Hole influence wanes, and there are currently no known Earth-directed CMEs.
Geomagnetic activity for the next few days should be QUIET overall, with just a chance of an occasional ACTIVE period on day one due to residual Coronal Hole effects, and again perhaps on day three as the high speed stream from a small Coronal Hole may start to become geoeffective.
Time of forecast: 18 Nov 2025
© UKRI