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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
21 NOV-22 NOV QUIET ACTIVE
22 NOV-23 NOV QUIET QUIET
23 NOV-24 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)
20 NOV-21 NOV QUIET ACTIVE 21:00-00:00 QUIET ACTIVE 00:00-03:00

Additional Comments

Predominantly QUIET geomagnetic conditions might become slightly elevated during the first forecast interval due to the ongoing coronal hole high-speed stream effects. Brief ACTIVE periods are anticipated.
Another coronal hole is expected to rotate into a geoeffective position later this weekend, possibly further increasing the geomagnetic activity during the third forecast interval.
Time of forecast: 21 Nov 2025
© UKRI