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
25 MAR-26 MAR QUIET STORM G1
26 MAR-27 MAR QUIET ACTIVE
27 MAR-28 MAR 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)
24 MAR-25 MAR QUIET STORM G1 06:00-09:00 QUIET STORM G1 06:00-09:00

Additional Comments

Solar wind speed was declining as the previous Coronal Hole influence had been diminishing, although we have seen a moderate increase due to the arrival of the predicted CME glance, however the effects of this have been lower than initially predicted.
Geomagnetic activity should be generally QUIET overall for the next few days, but there will remain a chance of some occasional ACTIVE periods, perhaps peaking briefly at STORM G1 over the next day or so due to residual CME effects before more consistently QUIET conditions return, prior to the arrival of the next Coronal Hole High Speed Stream later in the weekend, although any effects from this are expected to be limited.
Time of forecast: 25 Mar 2026
© UKRI