BRITS will be drenched in the next 36 hours as three weeks of rain is predicted to fall.
Forecasters have warned of a "danger to life" as 202 flood warnings are in place, mostly across central England and Wales.
Downpours and wet weather is set to sweep across the country from the South West this morning - as early temperatures struggle at a bitter 2C.
Met Office meteorologist Steven Keates said last night: "A cold front will move across the country bringing a marked change in temperatures compared to the start of the weekend.
"There will be blustery showers and the risk of gales in the north on Sunday, there is a chance that some of these showers will turn wintry especially over high ground.
"It is going to feel markedly colder, especially across the southeast after this cold front moves across bringing temperatures down from mid-double figures to around 9C to 12C.
"We are going to be a bit below average in terms of temperatures into the start of next week.
"Skies will be clear so it is going to be chilly, we are also going to see winds coming in from the north and the east.
"There will be a risk of frosts in the morning and some early fog."
A weather warning in South Wales read: "Homes and businesses are likely to be flooded, causing damage to some buildings.
"Fast flowing or deep floodwater is likely, causing danger to life.
"There is a good chance some communities cut off by flooded roads.
"Power cuts and loss of other services to some homes and businesses are likely."
The warning covers large parts of South Wales.
Three more covered the South West, North Wales, and the Midlands over night on Saturday into Sunday.
The Government's Flood Information Service has 13 warnings where "immediate action" is required.
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The warnings are in place across Yorkshire, the Midlands, and Wales.
Devon and Somerset Fire and Rescue service warned: "Large volumes of flood water in North Devon are making driving conditions hazardous.
"Fire & Police have attended a number of people who have driven into floodwater.
"Drivers are asked to respect road closures, not diverting to minor roads which are more treacherous. Avoid travel."