Warning!

Javascript is disabled on this browser.
Javascript must be enabled for this website to display and function correctly.

BGS Global Geomagnetic Activity Forecast

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

Additional Comments

The Coronal Mass Ejection (CME) associated with a filament eruption on 8-AUG arrived yesterday leading to minor enhancements in the solar wind parameters. Geomagnetic conditions were generally QUIET to ACTIVE in response and expected during the next two intervals.
A high speed stream from a northern coronal hole is due to arrive by the 3rd interval and activity is expected to reach ACTIVE to STORM G1 levels as a result.
Time of forecast: 12 Aug 2026
© UKRI