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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
23 MAY-24 MAY QUIET ACTIVE
24 MAY-25 MAY QUIET ACTIVE
25 MAY-26 MAY 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)
22 MAY-23 MAY QUIET QUIET 18:00-21:00 QUIET QUIET 03:00-06:00

Additional Comments

The Earth continues to be connected to the fast solar wind from a large coronal hole in the southern hemisphere. This is likely to continue throughout the forecast period. The northern extent of the coronal hole is variable, fluctuating the strength of the solar wind effects. Generally QUIET geomagnetic conditions are expected with a chance of some ACTIVE spells.
There remains an outside chance of a glancing blow from a coronal mass ejection during the first forecast period although confidence is low.
Time of forecast: 23 May 2025
© UKRI