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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
3 JUL-4 JUL QUIET STORM G1
4 JUL-5 JUL QUIET ACTIVE
5 JUL-6 JUL 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)
2 JUL-3 JUL QUIET QUIET 00:00-03:00 QUIET QUIET 00:00-03:00

Additional Comments

The anticipated arrival of the coronal mass ejection (CME) from the 28th June is now overdue but cannot be fully ruled out.
Solar wind speed will most likely become slightly elevated during this forecast period due to the upcoming coronal hole high speed stream.
Overall QUIET geomagnetic conditions are expected, with chances of ACTIVE and STORM G1 intervals caused by a possible late CME arrival combined with the coronal hole influence.
Time of forecast: 03 Jul 2025
© UKRI