The Met Office has issued warnings for heavy thunderstorms and rain as the UK is battered by stormy weather.
The weather warning was issued for London and parts of the south of England.
It comes as large parts of the country have experienced torrential downpours, leading to delays on the roads and railway lines.
A yellow thunderstorm warning is in place from 8pm tonight until 6am tomorrow, and affects large parts of the south.
Areas that are likely to bear the brunt of the extreme weather include areas in London and the south, such as Brighton, the Isle of Wight, Kent, Portsmouth and Southampton.
Bournemouth, Christchurch and Poole are also affected.
And in the south west of England and the south of Wales, including Swansea and parts of Cardiff, a thunderstorm warning is also in place from 3pm until midnight.
Meanwhile, there is already a yellow rain warning in place for most of these areas, lasting until 3pm this afternoon.
Some locations may be hit with 30-40 mm of rain in a few hours, while thunderstorms will be mostly limited to coastal districts where lightning and hail may cause additional hazards.
Brits woke up to heavy rainful this morning, leading to a number of flood alerts.
In Buxted, East Sussex, an urgent "act now" warning is in place after 40mm of rainfall - nearly half a month's rain - fell overnight and into this morning, with the alert in place until later this afternoon.
A similar warning is also in place for Bumpstead Brook through Steeple Bumpstead to New England in the east of the country.
Storm Claudio has been lashing parts of the nation, causing chaos and destruction on the roads.
There are currently over 20 seperate flood alerts spread across the nation, as well as the aforementioned weather warnings.
In London, a number of Tube stations fell foul to the weather while drivers struggled to navigate flooded roads around Paddington.
The Met Office has warned that persistent and sometimes heavy rain may cause roads to be affected.
Spray and flooding on roads will likely make journey times longer, with bus and train services likely to be impacted for some time.
Flooding of a few homes and businesses is possible with residents urged to remain vigilant.
Forecasters have also warned Brits that they should be prepared to "get their ice scrapers out" and prepare for frost to cover this week.
Temperatures are due to drop below freezing in many rural parts of the north tonight before plummeting further to -2C tomorrow.
Southern areas will need to brace for chilly nights in the low single figures, as a November chill finally arrives following an unseasonably warm spell.
Warning motorists of the freezing temperatures ahead, a tweet from the Met Office said: "Some of us may need our ice scrapers in the next few days as temperatures dip close to freezing".
The full-list of areas under weather warnings
London and South East England
- Brighton and Hove
- East Sussex
- Hampshire
- Isle of Wight
- Kent
- Portsmouth
- Southampton
- West Sussex
South West England
- Bournemouth
- Christchurch
- Poole and Dorset
- Cornwall
- Devon
- Somerset
Wales
- Bridgend
- Cardiff
- Carmarthenshire
- Neath
- Port Talbot
- Pembrokeshire
- Powys
- Rhondda Cynon Taf
- Swansee
- Vale of Glamorgan