The Environment Agency has issued more than 20 flood alerts for north England, the Midlands, the South East and Wales as heavy rain is set to lash the country.
The Met Office has also issued a number of severe weather warnings, for the Central, Tayside and Fife, London and the South East, south-west Scotland, Lothian Borders, the South West, Strathclyde and Wales.
It warned that heavy rain of up to 30mm (1.2in) will fall over high ground in Scotland during the morning, with thunderstorms and gusts of up to 60mph along the south coast of England.
More top news
The Government will urge the Church of England not to oppose plans to relax Sunday trading laws during a consultation starting today.
The number of night workers has risen to three million since the recession, with more women than ever working antisocial hours.
Sixteen Colombian police officers have been killed after their helicopter crashed while searching for the nation's most-wanted drug lord.