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BGS Global Geomagnetic Activity Forecast

Forecast period
(noon-to-noon GMT)
Forecast Global Activity level
Average Max
18 OCT-19 OCT QUIET ACTIVE
19 OCT-20 OCT QUIET ACTIVE
20 OCT-21 OCT QUIET QUIET

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

Activity during last 24 hours

Global   Local (UK)
Date Average Max At time (UT) Average Max At time (UT)
17 OCT-18 OCT QUIET QUIET 12:00-18:00 QUIET QUIET 15:00-18:00
QUIET 03:00-09:00 QUIET 06:00-09:00

Additional Comments

The solar wind speed will continue to decline during today before we start to see some influence from the next Coronal Hole towards the end of the first forecast interval. ACTIVE periods are likely over the next couple of days.
There is potentially a very small chance of a brief, isolated period of STORM G1 during day two due to the potential arrival of a co-rotating interaction region (CIR) associated with the northern polar coronal hole.
QUIET conditions overall should then follow towards the end of the forecast period as the High Speed Stream ceases to be geoeffective.
Time of forecast: 18 Oct 2018
© UKRI 2018