12 February 2014 Last updated at 11:32
Winds of up to 100mph are expected to batter west Wales and north-west England, with the Met Office issuing its first "red warning" of the winter.
The warning for 13:30 to 21:00 GMT means there is a "risk to life" and people should "avoid dangerous areas" with widespread damage expected.
Meanwhile, work is continuing to tackle flooding which is affecting much of southern England.
There are sixteen severe flood warnings in Berkshire, Surrey and Somerset.
This shows the affected areas of the red weather warning. West Wales and north-west England are the areas likely to get hit by high-speed winds, the Met Office has said.
Transport Secretary Patrick McLoughlin said the prime minister's pledge on Tuesday that money was "no object" to combat the flood problems did not amount to a "blank cheque" for tackling floods.
The Met Office said: "Winds of this strength can cause widespread structural damage, bringing down trees and also leading to loss of power supplies.
http://www.bbc.co.uk/news/uk-26153889