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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
15 JUN-16 JUN QUIET STORM G1
16 JUN-17 JUN QUIET ACTIVE
17 JUN-18 JUN QUIET ACTIVE

For more information about the forecast and activity categories see
geomag.bgs.ac.uk/education/activitylevels.html

Activity during last 72 hours

Global   Local (UK)
Date Average Max At time (UTC) Average Max At time (UTC)
12 JUN-13 JUN QUIET QUIET 12:00-15:00 QUIET QUIET 12:00-15:00
QUIET 03:00-06:00 QUIET 09:00-12:00
13 JUN-14 JUN QUIET ACTIVE 18:00-21:00 QUIET QUIET 18:00-21:00
14 JUN-15 JUN QUIET QUIET 15:00-18:00 QUIET QUIET 15:00-18:00
QUIET 00:00-03:00

Additional Comments

During the first forecast interval there is a possibility of a glancing impact from a coronal mass ejection (CME), which left the Sun on 12 JUN. Most of the CME is expected to miss the Earth, but there may be a slight chance of some ACTIVE or STORM G1 periods.
Solar wind speeds have been declining for the last few days, but may become elevated again late in the second forecast interval due to a high speed stream from a small, centrally located coronal hole. This is not expected to lead to a significant increase in geomagnetic activity, but could cause a few ACTIVE periods.
Time of forecast: 15 Jun 2026
© UKRI