Further storms, high tides and gale-force winds are expected across many parts of the UK over the weekend as communities already hit by a trail of devastation begin to assess the damage.
Hundreds of homes have been flooded from Cornwall to Scotland, with miles of coastline battered and roads and fields across the country left under water.
The Met Office has issued yellow warnings of rain in the south of England and snow in the north of England and southern parts of Scotland. Up to 30mm (1.1in) of rain could fall in just six hours, and there are more warnings of flooding and travel disruption.
Residents in Chiswell and Portland in Weymouth, Dorset, were evacuated ahead of high tide last night, while around 100 people living in Aberystwyth, Dyfed, were advised to move to higher ground, with many taking shelter in rest centres.
Meanwhile, searches resumed this morning in south Devon for missing 18-year-old Harry Martin - with more than 100 people volunteering to look for him.
The university student was last seen on Thursday afternoon leaving his home in Newton Ferrers, near Plymouth, to take photographs of the bad weather.
A Devon and Cornwall Police spokesman said: "The police, Devon Rescue Group, Coastguard, specialist search dogs and members of the public are continuing to search for Harry.
"Over 100 members of the public have volunteered to assist with searches in the local area of Newton Ferrers. We advise the public not to put themselves at risk."
Two people have already died in the storms. A 27-year-old man from Surrey was found on Porthleven Sands beach in Cornwall after he was swept out to sea on New Year's Eve night, and a woman died after being rescued from the sea in Croyde Bay, north Devon.
The ferocious weather has left widespread damage. In Aberystwyth debris was strewn across the promenade, rail lines in north Wales were left buckled by the power of the sea and a road collapsed in Amroth, Pembrokeshire.
Aberystwyth University student Millie Farmer said the town's promenade was a "complete mess"
Miss Farmer, a second year geography student, estimated that hundreds of thousands of pounds worth of damage had been done.
"They're starting to clear up. It's a complete mess," said Miss Farmer, 19, who comes from Shepreth, Cambridgeshire.
"You can't see the road. The promenade slabs have been scattered everywhere. It's an extension of the beach.
"It's a real shame. The front was damaged by storms a few weeks ago. They'd only just repaired it. Now it's been ruined again."
Miss Farmer said seafront properties had been evacuated yesterday and rescue centres set up. She said waves had been "spectacular".
"The weather today is nothing like as bad as it was yesterday," she said. "But it was still pretty scary this morning. The waves hitting the front were twice as high as me - and I'm not far off six feet."
This morning's high tide caused some localised flooding to Looe and Port Gaverne in Cornwall but was not as bad as feared. Land's End Airport has also been closed due to a flooded airfield.
Emergency services rescued four people from a flooded farm in Llanbedr near Barmouth, north west Wales, the River Severn burst its banks in Gloucestershire and a pregnant woman was rescued after 30 properties were flooded in Cardigan, mid-Wales.
Officials around the country have pleaded with people to keep away as dozens put their life at risk by going to coastal areas to watch as the storm brought waves up to 40ft high crashing on to land.
A man and child were almost swept away by a huge wave at Mullion Cove in Cornwall as they peered over the sea wall to watch the raging sea, and elsewhere in Cornwall vehicles driving on a coastal road were swamped and almost washed away by a tidal surge.
People across the UK, from Devon to Cumbria and Sussex, protected their homes with sand bags and flood gates as the waters rose around them.
This morning there were four severe flood warnings in place - meaning a danger to life - along the Severn Estuary in Gloucestershire and in Dorset, with a further 103 flood warnings and 237 flood alerts.
There are also delays at the Port of Dover because of force five winds, while the Highways Agency said the M48 Severn Crossing has been re-opened in both directions to all vehicles.
Trains have also suffered disruption with services from Newport and Bristol to the south coast affected by the weather.
Rail operator First Great Western was warning passengers that further rain and strong winds forecast for tomorrow afternoon "may result in further disruption affecting our routes in Devon and Cornwall".
As the New Year storms continued, the Government came under fire yesterday as it was revealed an estimated 1,700 jobs are to be axed at the Environment Agency (EA), with 550 staff from the floods team to go.
Environment Secretary Owen Paterson said front-line flood defences would be protected after the EA's chief executive Paul Leinster said risk maintenance would be "impacted" and work on flood warnings would "have to be resized".
Leslie Manasseh, deputy general secretary of trade union Prospect, called on the Government to stop the cuts.
"Last week David Cameron praised Environment Agency staff for doing an amazing job with the floods and extreme weather. It's typical that as soon as there is a crisis, the politicians immediately turn to the specialists and professionals with the scientific knowledge and skills to step in and protect the public," he said.
The south and west coast of England and the Severn estuary still remain at risk of coastal flooding throughout the weekend and into the early part of next week, the Environment Agency has warned.
Parts of the North East coast including Whitby and South Shields could see flooding, while parts of the south coast, including Portsmouth and Newhaven could see more coastal flooding over the next two days.
Currently there are no severe flood warnings in force. However, there are 86 flood warnings and 256 flood alerts across England and Wales.
Further inland heavy rain has left ground saturated, increasing the risk of river and surface water flooding, the Environment Agency said.
In particular, there is an increased risk of flooding risk to Weybridge and Guildford on Sunday and into Monday, while communities along the non-tidal Thames, including Oxford and Osney could be at risk from Sunday and into next week as the peak flow moves along the river.
Environment Agency teams are on standby to deploy demountable defences in these areas. Also at risk are communities along the River Severn in Gloucestershire and on the Somerset Levels.
Rivers are also likely to rise in response to the rainfall in Dorset, Hampshire and Wiltshire. Further wet and windy conditions forecast over the weekend could exacerbate problems in already saturated areas.
Environment Agency teams continue to work around the clock checking and maintaining flood defences, clearing blockages in watercourses, deploying temporary defences, monitoring water levels and issuing flood warnings where necessary.
Most recent estimates suggest that around 90 properties have flooded since Friday, bringing the total number of properties flooded to around 220.
The coastal surge in recent days has tested over 3,000km of flood defences in England and over 205,000 properties have been protected.
The Thames barrier was again closed in the early hours of Saturday morning against the high tide, and will continue to close to protect people and property along the Thames.
Natural Resources Wales, the organisation which leads on flooding in Wales, has issued warnings to communities along the coastline of Wales.
Jonathan Day, flood risk manager at the Environment Agency, said: "The risk of flooding to the coast will continue over the next few days, especially on the south and west coast and along the Severn estuary.
"In addition, wet conditions have left the ground saturated in many areas, increasing the risk of river and surface water flooding.
"We would urge people to be prepared by checking their flood risk, signing up to free flood warnings and keeping an eye on the latest flood updates via the EA website and Twitter.
"We have protected over 200,000 properties across the country over the past 48 hours, and the Environment Agency will continue to work around the clock to protect communities."