In Cornwall a lane's also been closed on the A30 westbound near Scorrier. That's due to resurfacing work.
In Devon, a lane's closed on the A30 westbound carriageway near Honiton and Exeter. It means drivers won't be able to join the M5 northbound at Junction 29. Diversions are in place.
In Camborne, in Cornwall, there may be delays on Pendarves Street at Church View Road. That's because of water mains work.
Reports of broken down car on the A30 Eastbound in Cornwall near A3075 / A390 / B3277 (Chiverton Cross Roundabout)
There's fog on the M5 between J28 A373 / B3181 (Cullompton Services) and J31 A30 (Exminster). Traffic is currently moving well.
Dorset Police have said drivers are causing considerable problems by ignoring diversion signs and trying to find their own alternative routes.
Back roads through small villages - particularly around the A35 road closure - are causing motorists problems. These smaller roads are either flooded, covered in flood debris or too narrow to cope with the increased volume of traffic.
Diversion routes have been carefully devised to provide the safest and most appropriate alternative routes for all road users, and ignoring the diversions will cause further delay and disruption.
Police advise that roads will be re-opened as soon as they are safe and passable.
At Paignton in Devon there's a lane closed for roadworks on the A3022 Torquay Road where it meets Dartmouth Road & Palace Avenue
In Exeter, lane closed due to roadworks on A30 Westbound around Junction 29 for the M5
Newstead Road is blocked both ways due to an accident between the A354 Westwey Road and North Quay (Harbour Roundabout) and Marsh Road.
In Devon, one lane is closed on Newton Road in Torquay for resurfacing. That's between Shiphay Lane and Cleveland Road. It's part of a major programme of work in the Torbay area.