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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
13 AUG-14 AUG QUIET ACTIVE
14 AUG-15 AUG ACTIVE STORM G1
15 AUG-16 AUG 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)
12 AUG-13 AUG QUIET QUIET 18:00-21:00 QUIET QUIET 18:00-21:00

Additional Comments

Geomagnetic conditions are expected to remain QUIET until the onset of a high-speed solar wind stream from a northern coronal hole. This could arrive during the 2nd forecast interval. ACTIVE with a chance of STORM G1 conditions are likely. The coronal hole influence could persist into the 3rd interval.
Time of forecast: 13 Aug 2026
© UKRI