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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
28 MAR-29 MAR ACTIVE STORM G1
29 MAR-30 MAR QUIET STORM G1
30 MAR-31 MAR 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)
27 MAR-28 MAR ACTIVE STORM G1 12:00-15:00 ACTIVE STORM G1 12:00-15:00

Additional Comments

Solar wind is slowly returning to background levels as coronal hole high speed stream influence subsides. However, ACTIVE and STORM G1 periods are still anticipated during the first forecast interval.
Possible glancing effects from coronal mass ejections (CMEs) observed on 25-Mar 12:30UT and 27-Mar 22:00UT might increase geomagnetic activity over the weekend with chances of further brief STORM G1 periods.
Time of forecast: 28 Mar 2025
© UKRI