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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
5 MAY-6 MAY QUIET STORM G1
6 MAY-7 MAY QUIET ACTIVE
7 MAY-8 MAY 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)
4 MAY-5 MAY ACTIVE STORM G2 18:00-21:00 ACTIVE STORM G2 18:00-21:00

Additional Comments

Geomagnetic activity reached elevated levels in the last 24 hours due to the coronal mass ejection (CME) arrival. The CME passing may bring further ACTIVE/STORM G1 periods during the first forecast interval.
Effects of a high-speed stream from a small centrally located coronal hole are expected later this week, most likely on 07-08 May, resulting in slightly enhanced geomagnetic conditions.
Time of forecast: 05 May 2026
© UKRI