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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
9 DEC-10 DEC QUIET STORM G1
10 DEC-11 DEC QUIET ACTIVE
11 DEC-12 DEC QUIET QUIET

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)
6 DEC-7 DEC QUIET QUIET 09:00-12:00 QUIET QUIET 03:00-06:00
7 DEC-8 DEC QUIET QUIET 18:00-00:00 QUIET QUIET 18:00-00:00
8 DEC-9 DEC QUIET ACTIVE 00:00-03:00 QUIET STORM G1 00:00-03:00

Additional Comments

The Earth is experiencing elevated geomagnetic conditions due to the arrival of a coronal hole high-speed wind stream in the early hours of 09-DEC, which triggered a minor geomagnetic storm around 02:00 UT. Solar wind speed remains elevated, without clear evidence of speed decrease at this time. Further periods of ACTIVE and unsettled conditions are anticipated in the first forecast interval, with a small chance of STORM G1 occurring. Geomagnetic activity is expected to decline throughout the second and third forecast intervals. No Earth-directed coronal mass ejections (CMEs) have been identified.
Time of forecast: 09 Dec 2024
© UKRI