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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
19 APR-20 APR ACTIVE STORM G1
20 APR-21 APR QUIET STORM G1
21 APR-22 APR QUIET 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)
18 APR-19 APR QUIET ACTIVE 06:00-09:00 QUIET STORM G1 06:00-09:00

Additional Comments

During the last 24 hours, we observed a period of ACTIVE conditions with a maximum of STORM G1 as geomagnetic activity became enhanced due to a glancing impact from a Coronal Mass Ejection (CME). The effects from this CME are expected to wane over the first day. A coronal hole high-speed stream is anticipated to arrive later today and into tomorrow, coupled with residual CME effects, this is anticipated to bring further ACTIVE conditions with a chance of STORM G1 throughout the first and into the second forecast interval.
Glancing blows from several CMEs cannot be ruled out towards the end of this forecast period. This may result in some ACTIVE to STORM G1 periods over the weekend.
Time of forecast: 19 Apr 2024
© UKRI