New yellow warnings of more snow and ice have been issued by the UK Met Office as wintry weather caused travel disruption and the return to school was abandoned for thousands of pupils.
A warning for snow and ice is in place across most of south-west England and Wales, and parts of north-west England and the West Midlands, for between 5pm on Monday until 10am on Tuesday.
The same warning is in place for western and northern parts of Scotland for between 4pm on Monday until midday on Tuesday, and in Northern Ireland
between 3pm on Monday until 11am on Tuesday. There is a separate warning for snow in southern England on Wednesday from 9am until 11.59pm.
A separate warning for potentially disruptive snow across southern counties and south London begins at 9am on Wednesday and lasts all day.
Large airports, including Manchester, temporarily closed their runways because of heavy snow while stranded vehicles and collisions blocked main roads across northern England.
The adverse conditions come after heavy snow or icy rainfall across most of the UK over the weekend, with the Met Office issuing amber weather warnings.
The Met Office warned travellers that more travel disruption was likely amid wintry conditions, including flooding from heavy rain and thawing snow, with more than 160 flood warnings and 300 flood alerts issued.
National Highways said the M5 in Gloucestershire was closed southbound from junction 11A (for Gloucester) to junction 12 (for Quedgeley) because of extensive flooding while the A66 over the Pennines remained closed in both directions.