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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
15 OCT-16 OCT QUIET STORM G1
16 OCT-17 OCT QUIET STORM G1
17 OCT-18 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)
14 OCT-15 OCT QUIET ACTIVE 00:00-03:00 QUIET ACTIVE 00:00-03:00

Additional Comments

Geomagnetic conditions are returning to ambient levels in the wake of the recent coronal hole high speed stream.
Currently there are one or more coronal mass ejections (CME) feature in the the forecast with possible Earth-directed component. Therefore there is a chance of STORM G1 periods throught this forecast due to possible glancing impact from any of these CMEs.
Solar activity has continued at moderate levels with 4 M-class solar flares in the last 24 hours, analyses of these are continuing.
Time of forecast: 15 Oct 2025
© UKRI