Eighteen hours of rain is forecast for Merseyside tomorrow as the wintry weather continues.
Northern parts of the UK are facing days of treacherous wet, snowy and icy conditions.
Several National Severe Weather warnings have been issued.
During the early hours, heavy rain will spread across the region before returning again in the evening.
Frank Saunders, Met Office chief meteorologist, said: "Rain will push into the southwest of the UK on Monday evening, bringing some heavy rain for southern areas.
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"As the weather front 'bumps' into colder air further north, the rain will turn to snow, and with up to 4cm falling quite widely a snow and ice warning has been issued."
Mr Saunders said between 5cm and 10cm of snow could fall over higher ground in southern Scotland and northern England early this week, with the possibility of 20cm or more across the highest roads.
Tuesday hour by hour weather forecast:
12am - Light rain, 3C
1am - Heavy rain, 3C
2am - Heavy rain, 3C
3am- Heavy rain, 3C
4am- Heavy rain, 3C
5am- Heavy rain, 3C
6am- Heavy rain, 3C
7am- Heavy rain, 3C
8am- Heavy rain, 3C
9am- Light rain, 3C
Check the weather forecast in your area by entering your postcode below:
10am - Light rain, 4C
11am - Cloudy, 4C
12pm - Cloudy, 5C
1pm - Cloudy, 6C
2pm - Cloudy, 7C
3pm - Cloudy, 8C
4pm - Light rain, 7C
5pm - Heavy rain, 7C
6pm - Heavy rain, 7C
7pm - Heavy rain, 7C
8pm - Heavy rain, 7C
9pm - Heavy rain, 8C
10pm - Light rain, 8C
11pm - Light rain, 8C
