Temperatures forecast to plummet to -20C in parts of the UK

A new amber warning for snow has also been issued for the south-west of England, joining those for northern Scotland and Northern Ireland

A new amber warning for snow has been issued in the south-west of England as temperatures are expected to plummet as low as -20C in parts of the UK in the coming nights.

Yellow warnings for snow are in place across northern Scotland, Northern Ireland and the south coast of England for Wednesday and Thursday, with an additional warning across the west and north of Wales on Thursday that also encompasses Merseyside and Chester.