Strong winds and heavy rain could cause floods, power cuts and tear down trees, according to the Met Office and a Scottish weather agency.
Tiles may be blown from roofs while railways and roads could be disrupted.
The Met Office has issued a yellow wind warning from midday on Wednesday until 7am on Thursday in the following areas:
— Southwest England
— West Midlands
— North England
— Scotland
— Northern Ireland
— Wales
The most powerful winds are expected to hit the Irish Sea coasts, with up to 75mph on higher grounds and in exposed coastal areas.
@1fb367ab We're not seeing much wind yet here in Paisley, it's about 11:15AM.