HUNDREDS of people have been evacuated and streets are underwater but Brits are being warned to brace for MORE flooding.
Thirty-four flood warnings are in place after heavy rain and 65mph winds wreaked havoc across the country.
Brits in some parts were urged to "get to high ground", while coastlines were hammered by massive waves.
The Environment Agency said coastal and tidal flooding is "probable" for much of England today and tomorrow.
And a yellow rain warning remains in place for Glagow and much of the west coast of Scotland from 9am-10pm tomorrow.
The Met Office warned homes and businesses could be flooded and downpours could cause travel chaos.
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The Environment Agency has issued 33 red flood warnings for the country, while there are 183 alerts in place.
It comes after emergency services were scrambled all over the UK today after rivers burst their banks and downpours soaked roads.
Fire crews raced to "severe flooding" at Medmerry holiday park in West Sussex in the early hours of this morning.
They raced one person to hospital and helped more than 150 locals evacuate their homes, the reports.
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The River Arun also burst its banks, flooding the seaside town of Littlehampton.
Residents have been told to stay in their properties and "get as high as possible within their homes".
Julie Everitt, 67, was "petrified" as flood water rushed into her front garden up to her door, while two toilet bowls floated down her road.
The OAP said: "I was petrified because I was out in the front garden just to see how far it was coming up.
"All of a sudden, there was a surge. My garden was flooded and I was about two inches deep, treading in it - the smell as well.
"There was lots of debris everywhere where it all floated in and there's loads of dead worms.
"There's a yard over the road and there are two toilet cisterns sitting there."
A resident of Shoreham-by-Sea in West Sussex said flooding in the town was "scary and unprecedented".
How to protect your home from floods
FLOOD damage can be costly, but there are ways to protect your home and belongings.
Aviva's flood mapping data shows one in five homes are at risk of flooding.
Here's how to prepare and save money on post-flood damage control.
Do your research Check flood risks before buying or renting a property. Also, speak to your landlord about risks for renters.
Stock up early Get sandbags, flood boards, and plastic sheeting ahead of time to seal doorways and block air bricks.
Prep an emergency kit Include insurance documents, a battery-powered torch and radio, waterproof clothing, blankets, bottled water, non-perishable food, medication, first-aid kit, phone chargers, and food for babies and pets.
Move your car Move your car to higher ground if flood warnings suggest your area could be affected.
Get insured Check if your home insurance covers flood damage. Also consider contents insurance to protect belongings.
How to make a claim Inform insurer immediately and gather evidence like photos or videos of flood damage.
Take photos Take photos before and after flood damage to show extent of damage.
Keep electronics off Do not turn on electrical items until dried out to avoid further damage.
Ventilate your home Open doors and windows to ventilate and dry out home. Consider using a dehumidifier.
Lift things out of water If safe, lift furniture off saturated carpets to prevent further damage.
Be alert to scams Avoid appointing separate loss assessors to prevent being scammed out of money.
Gareth Theobald, 36, said: "I was out the front of the building and watching the water just get higher and higher and higher, and then helping or stopping traffic going into the floodwaters.
"And then just watching in disbelief as the whole of Brighton Road and our multimillion-pound development was being engulfed by floodwaters."
Elsewhere, colourful beach huts were washed into the sea.
Huts at Castle Beach in Falmouth, Cornwall were smashed to pieces as waves crashed down on the coast.
Shocking footage showed some of them washing away into the surf, before being smashed into seawalls further along the coastline.
High tides and howling winds have also brought flooding to parts of Hampshire and the Isle of Wight.
Beach huts in Milford-on-Sea in Hampshire were left teetering on the edge of sandy cliffs, too.
South Western Railway said trains may be cancelled, delayed, or revised because of the floods.
On the Great Western Railway, flooding between Clifton Down and Severn Beach closed all lines.
In Pembrokeshire, Dyfed-Powys Police urged motorists to avoid the area around the A487 at Penycwm after surface water swamped it.
It comes after the Met Office has issued three yellow wind and rain warnings for today.
West Sussex Fire & Rescue said: "Anyone within the vicinity should get to high ground if possible, unless unable to leave their residence.
"Anyone requiring life-saving intervention or trapped in their residence should use 999 to contact Fire and Rescue Service or the Coastguard.
'People are proper angry'
LITTLEHAMPTON man Rob James said water had got through a flood barrier into his Littlehampton workshop, soaking machinery.
"I don't know if they will work again," he said, adding it could take weeks or months to fix the damage.
The 63-year-old criticised the lack of warning before Monday night's flooding, adding: "We're all out of the same boat here. Everyone's wet.
"No warning whatsoever from any of the Government, council, Environment Agency. People are proper angry about them."
He said his business had put more barriers at the back door to the workshop ahead of the next high tide.
But engineer Rob added: "There is no flood defence down here."
Another resident said the "exceptional" had caused a literal"perfect storm".
Local Paul Hunt said his Sky television dish had been submerged but his home was unaffected.
"I have never seen it like this before," the lorry driver said.
"Every year I have been here it's got worse. This is the worst it's been.
"Nothing you can do about it, the river is getting higher every single year."
"Please avoid the area to allow rescue operations to continue safely and effectively."
Environment Agency flood expert Harry Walton said: "A combination of spring tides and strong winds is generating a storm surge and large waves.
"Minor coastal flooding impacts are probable for parts of England on Monday and Tuesday.
"Environment Agency teams are out on the ground, taking action to reduce the impact of flooding and support those communities affected.
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"We urge people to stay safe on the coast, take extreme care on coastal paths and promenades.
"We advise people not to drive through flood water as just 30cm of flowing water is enough to move your car."