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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
28 OCT-29 OCT ACTIVE STORM G2
29 OCT-30 OCT ACTIVE STORM G2
30 OCT-31 OCT 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 (UTC) Average Max At time (UTC)
27 OCT-28 OCT QUIET ACTIVE 21:00-00:00 QUIET ACTIVE 03:00-06:00
ACTIVE 03:00-06:00

Additional Comments

Glance from the coronal mass ejection observed on the 23-Oct most likely arrived yesterday resulting in a brief period of enhanced geomagnetic activity.
Geomagnetic conditions are expected to become elevated over the coming days due to the ongoing effects of the high-speed stream from two coronal holes. Chances of prolonged ACTIVE periods and STORM G1/G2 intervals are anticipated.
Time of forecast: 28 Oct 2025
© UKRI