The Met Office advised people to check road conditions and amend travel plans if necessary, while preparing for power cuts with torches and batteries was also recommended.
Meanwhile, the Environment Agency (EA) also issued a flood warning for the River Clyst area of East Devon.
Flooding was possible to properties and low lying areas around Ashclyst Farm and Burrow Bridge, Clyston Mill, Dymond’s Farm, Sowton Barton and properties and farms between Clyst St. Mary and Topsham including Newcourt Barton and Cotts Farm.
Cornwall Fire and Rescue said the A390 at Tresillian was closed on Sunday morning due to a fallen tree and police were in attendance.