There's disruption on First Great Western services between Gloucester and London Paddington due to a broken down train between Kemble and Swindon.
There are delays of more than 2 hours, with some trains diverting via Bristol Parkway.
Replacement buses are in place between Gloucester and Swindon. There's no current estimate for when a normal service will resume.
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Despite the rain, over a thousand people turned out to watch the annual Cheese Rolling races at Brockworth in Gloucester this lunchtime.
Philippa has the forecast for Devon, Cornwall, Somerset and Dorset
Philippa has the forecast for Bristol, Wiltshire, Gloucestershire, Somerset and Dorset.