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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT) 		Forecast Global Activity level
Average Max
13 MAY-14 MAY QUIET ACTIVE
14 MAY-15 MAY QUIET QUIET
15 MAY-16 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)
12 MAY-13 MAY QUIET QUIET 12:00-15:00 QUIET QUIET 03:00-06:00

Additional Comments

Solar wind speeds have returned to near background levels as coronal hole influence has waned. Some residual effects may cause some isolated ACTIVE geomagnetic activity during the first period. Another coronal hole high speed stream is then likely to become geo-effective early on in the third period which could again elevate conditions.
A CME from a filament eruption was observed lifting from the north of the solar disc late last night, which is expected to miss the Earth but there is a narrow chance of a glance late during the third period.
Time of forecast: 13 May 2025
© UKRI