Sussex Police is warning drivers to be take extra care and allow enough time for journeys as people head off for the Christmas break.
“The heavy rainfall will lead to significant surface water and strong winds have already led to fallen trees and hazards in the road.
“Our message to roadusers is to be cautious, slow down and allow extra time for your journey and watch out for hazards such as gusts of wind and large puddles.
“We urge everyone to remain vigilant and advise people not to walk or drive through floodwater.
“We are working with our partners across Sussex and doing all we can to keep people safe and the roads clear.
“There is some risk of flooding.
“Please think carefully about whether your journey is essential and if not we would advise you to stay indoors. Keep listening to your local radio stations for up-to-date weather and travel advice and if you are out and about, keep safe.”