There's currently disruption on First Great Western between Banbury and Oxford due to emergency services dealing with an incident.
All lines are currently blocked and there is no estimate for when a normal service will resume. Also affecting CrossCountry services.
There are also delays of up to 40 minutes on Gatwick Express between Victoria and Gatwick Airport due to signalling problem at Victoria. Some trains may also be cancelled. Also affecting Southern services.
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Friday's forecast for the east of the region
Friday's forecast for the west of the region
Friday morning's forecast for the west of the region