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
5 JUN-6 JUN ACTIVE STORM G2
6 JUN-7 JUN QUIET ACTIVE
7 JUN-8 JUN 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)
4 JUN-5 JUN QUIET QUIET 03:00-06:00 QUIET QUIET 03:00-06:00

Additional Comments

Solar wind speeds received an enhancement earlier this morning due to the arrival of potentially two of the CMEs that lifted from the Sun on the 3rd June. Geomagnetic activity was relatively limited due to positive Bz and relatively modest enhancements in solar wind speeds.
STORM geomagnetic conditions are still likely during the first forecast period as CME effects continue. Coronal hole influence may also help to elevate solar winds further as the edge of the trans-equatorial coronal hole rotates around the limb.
A glance from the third CME, which erupted on the 3rd June, could still impact activity through the first period. CME and coronal hole effects are anticipated to wane during the second period with nominal conditions returning in the third.
Time of forecast: 05 Jun 2026
© UKRI