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
11 NOV-12 NOV STORM G1 STORM G3
12 NOV-13 NOV ACTIVE STORM G2
13 NOV-14 NOV 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)
10 NOV-11 NOV QUIET ACTIVE 15:00-18:00 QUIET ACTIVE 15:00-18:00

Additional Comments

Solar wind parameters have been on the decline as CME effects have waned. They are anticipated to be enhanced during the first forecast interval upon the arrival of a halo CME associated with an X1.7 flare from the 9th November. Another X1.2 flare occurred from the same active region on the morning of the 10th November producing a fast asymmetric full halo CME which is expected to be Earth directed. This may arrive later during the first forecast interval but has a chance of combining with the previous CME or closely following it.
This will likely cause significant geomagnetic activity of STORM G1 during the first forecast interval with up to STORM G3 conditions possible with both events being so close. A further X-class flare is currently happening from the same region which may have an impact in the coming days depending on any associated CME. Further analysis and imagery will be required.
Time of forecast: 11 Nov 2025
© UKRI