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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
26 MAR-27 MAR QUIET ACTIVE
27 MAR-28 MAR QUIET QUIET
28 MAR-29 MAR QUIET STORM G1

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)
25 MAR-26 MAR QUIET QUIET 00:00-03:00 QUIET QUIET 00:00-03:00

Additional Comments

Solar wind speed continues to decline as Coronal Hole influence wanes and the effects of the CME glance yesterday diminish. The next few days look to be QUIET overall, with only a slight chance of an ACTIVE period on day one due to residual High Speed Stream and CME effects. The next High Speed Stream from a northerly Coronal Hole is expected to become geoeffective on day three, although we do not expect any significant enhancement from this with perhaps some occasional ACTIVE periods and only a slight chance it could peak briefly at STORM G1.
Time of forecast: 26 Mar 2026
© UKRI