The Prime Minister has promised the Government would "ensure everything is being done to help" after winds and torrential rain left one person dead and forced hundreds from their homes.
David Cameron's comments came as the Environment Agency revealed more than 800 homes have been flooded, with thousands of motorists across the country being rescued from water-logged roads.
Forecasters have warned there may be worse to come and after residents in the South West suffered from the floods over the weekend, people in the Midlands are now braced for the worst as bad weather moves northwards. And rain causing floods is likely to remain until Tuesday night, forecasters predicted
The storms have already caused devastation across large swathes of the country.
A 21-year-old woman was killed and two people were seriously injured in Western Way, Exeter, Devon when they was crushed by a tree as wild winds whipped southern England. It follows the death of a man on Thursday, who died when his car became wedged under a bridge near a ford in Rectory Fields, Chew Stoke, Somerset.
A 50-year-old man also died after falling into a canal in Watford on Saturday. Kevin Wilkinson was walking with friends along a towpath near Wiggenhall Road in Watford shortly after 4am when it is believed he fell in.
Cambridgeshire Police said that the death of a 70-year-old man whose car plunged into a river near Earith, on Saturday night, was not weather related.
Up to 15mm of rain is expected to fall across the spine of Britain today, less than the 30mm of rain in pockets of the West Country or the 40mm to 50mm possible in the North and north Wales, but meteorologists said it would offer little respite to weary homeowners keen to begin the clean-up.
On Sunday, Mr Cameron wrote on Twitter: "Shocking scenes of flooding in Cornwall and around the country. Govt will help ensure everything is being done to help."
The Environment Agency has continued to issue warnings, although it downgraded its alerts so there are no severe flood warnings. At one point on Sunday four were in place as water flooded through villages in Cornwall. The agency now has now issued more than 550 alerts, including 280 flood warnings - the second strongest alert - confined largely to the Midlands as bands of rain which brought sorrow and destruction to the South West moved northwards.