The Met Office has upgraded its yellow weather warning to an amber 'be prepared' rainfall warning as showers are forecast to be heavier that expected. <br /> <br />Areas affected by the amber warning include Milton Keynes, Cambridgeshire, Bedfordshire, Oxfordshire, Leicestershire, parts of south-west England and the West Midlands, which could see 30-40 mm of rainfall within three hours. <br /> Report by Kennedyl. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn
