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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
8 OCT-9 OCT ACTIVE STORM G2
9 OCT-10 OCT QUIET STORM G1
10 OCT-11 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)
7 OCT-8 OCT QUIET QUIET 15:00-21:00 QUIET ACTIVE 15:00-18:00

Additional Comments

The arrival of a coronal mass ejection (CME) from 6th Oct is anticipated during the first forecast interval. This is likely to lead to periods of ACTIVE and STORM G1 geomagnetic conditions, with a chance for some STORM G2 periods. Activity may continue into the second forecast interval, before easing back to QUIET conditions.
Another CME was observed leaving the Sun yesterday, associated with a C7.9 class solar flare. This could have a glancing impact during the third forecast interval, which may lead to some ACTIVE periods, with a chance for some brief STORM G1 periods.
Time of forecast: 08 Oct 2026
© UKRI