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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
3 SEP-4 SEP QUIET QUIET
4 SEP-5 SEP QUIET QUIET
5 SEP-6 SEP QUIET QUIET

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)
2 SEP-3 SEP QUIET QUIET 18:00-21:00 QUIET QUIET 18:00-21:00
QUIET 00:00-03:00 QUIET 03:00-06:00

Additional Comments

Solar wind speed remains slightly elevated but we still anticipate it to decline somewhat over the next few days.
There have been two CMEs over the past 24 hours. One associated with an M3 flare near the east limb should not impact Earth.
An earlier CME, potentially associated with a filament lift-off near the west limb may have a small Earth-directed component, although it appears very slow and weak and is unlikely to affect geomagnetic activity significantly, and has an estimated arrival time beyond day three.
The High Speed Stream from a small Coronal Hole could potentially become geoeffective at the start of next week, but that is beyond the current forecast period.
Time of forecast: 03 Sep 2026
© UKRI