An eyewitness has told ITV Central that a crew is on its way to cut the central reservation to allow cars to turn around.
We have also been told that a coach has arrived to collect stranded motorists who have evacuated their vehicles in the exclusion zone.
More top news
Sunshine to burst through the clouds later after the rain clears for a bright afternoon.
Expect some sunshine later this afternoon, but it won't feel quite as warm.
A coach carrying schoolchildren has collided with a van in Warwickshire.