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
14 APR-15 APR QUIET ACTIVE
15 APR-16 APR STORM G2 STORM G3
16 APR-17 APR STORM G2 STORM G3

For more information about the forecast and activity categories see
geomag.bgs.ac.uk/education/activitylevels.html

Activity during last 72 hours

Global   Local (UK)
Date Average Max At time (UTC) Average Max At time (UTC)
11 APR-12 APR QUIET ACTIVE 21:00-00:00 QUIET ACTIVE 12:00-15:00
ACTIVE 12:00-15:00
12 APR-13 APR ACTIVE STORM G1 21:00-00:00 QUIET STORM G1 21:00-00:00
13 APR-14 APR QUIET ACTIVE 03:00-06:00 ACTIVE STORM G1 06:00-09:00

Additional Comments

Two coronal mass ejections (CMEs) were observed leaving the Sun yesterday, both associated with prominent filament eruptions, the first late on 12-Apr, and the second, early on 13-Apr, both from near solar centre locations. There is significant dense filament material lift-off visible on available SOHO/STEREO imagery. We expect these CMEs to become geoeffective during the second forecast period increasing the geomagnetic activity to minor geomagnetic storm (STORM G2), with the possibility of STORM G3 levels.
Time of forecast: 14 Apr 2025
© UKRI