Some parts of the UK are have seen the worst storm surge in 60 years, but we are not out of the danger yet.
A combination of factors are combining to make this storm surge particularly powerful.
Water levels around the UK could be higher than in the storm surge of 1953, but thanks to flood defences the impact is likely to be smaller.
ITV weather presenter Lucy Verasamy has the latest forecast:
Mist and fog will develop across southern Britain againtonight, turning cold with a patchy frost in the south-east by dawn.
There will be another cold, slow start in places withdense fog bringing poor visibility through rush hour before it graduallybrightens up.
Elsewhere, there will be cloudy skies with patchy rain edging in from the north-west.
Winds will whip up through Scotland, but it at least it will remain frost-free.
Most will be feeling mild for December.
Officers on board one of the Metropolitan police's helicopters has taken these stunning pictures of London today as parts of the UK are hit by fog:
Those who thought the last image was Canary Wharf are wrong (it looks like this...) http://t.co/i7u7x0BIkp
After a cold, frosty, and in places foggy, start, it is a muchbetter afternoon.
There are bright skies with low - and at times, dazzling - wintersunshine might mean you need your sunglasses - especially when driving!
It is staying disappointingly grey and misty around parts ofNorfolk, Cambridgeshire and Lincolnshire - especially around The Fens.
With more cloud in Northern Ireland and Scotland, it will feelmild for the time of the year.
Elsewhere, it will feel chilly - with the lowest temperatures in thesouth-east of England.
The Shard peeking out of the London fog this morning. St Paul's sits below http://t.co/bEePNxzXrd
Fog at Heathrow may slow the trip home http://t.co/FhfFsnLPjl
Fog at Heathrow but still, about to take-off. Next stop: Kiev, Ukraine! http://t.co/bY0rF4faqO
Thick fog has caused delays for thousands air passengers. Poor visibility led to 40 flights being cancelled at Heathrow airport. At London City Airport in Docklands nearly every early-morning service was either delayed or cancelled.
British Airways has tweeted that fog is causing delays and some cancellations at Heathrow Airport.
Fog is causing delays & some cancellations at London Heathrow today. Please check your flight details here http://t.co/aZ9bu1grmm
Widespread ground frost is expected in the south-east overnight, while the rest of the UK is set to enjoy a mild evening.
There will be sunny spells throughout tomorrow morning - the exception being western Scotland - and with fog still lingering in the south east of the country.