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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
13 MAY-14 MAY QUIET ACTIVE
14 MAY-15 MAY ACTIVE STORM G1
15 MAY-16 MAY ACTIVE 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)
12 MAY-13 MAY QUIET QUIET 12:00-15:00 QUIET QUIET 00:00-03:00
QUIET 18:00-21:00

Additional Comments

The geomagnetic activity level is currently QUIET. An anticipated coronal mass ejection is yet to make an impact but there remains a chance of ACTIVE periods during the first forecast period.
A high-speed solar wind stream from a large coronal hole is expected to arrive during the second forecast period. Geomagnetic activity up to STORM G1 levels are possible.
Time of forecast: 13 May 2026
© UKRI