Thermometers are forecast to nosedive to lows of -6C overnight in parts of the United Kingdom with highs in the low single figures during the day.
Heavy shower showers and treacherous ice sheets are expected to cause widespread travel mayhem across the United Kingdom this week, with lengthy delays on public transport likely. Around this proper low, will be heavy rain and the likelihood of heavy snowfall on the leading edge which will head over the Pennines into Scotland.
The Met Office has already named one storm, Fionn, which is expected to slam in western Ireland and Norther Ireland with winds of 80mph tonight.
There is a greater chance of snow further south across parts of Wales and the possibly the Midlands later into Tuesday, forecasters said.
Any persistent snow is most likely to clear east before dawn on Thursday but further snow showers are likely to follow.
Will we be waking up to snow tomorrow morning?
"We may see as much as 15cms of snow over hills in Northern Ireland, especially in the north of Northern Ireland.
Central and northern Scotland are the places most at risk which are covered by this warning".
'There could be power cuts and public transport delays come Monday and Tuesday. "Some rural communities could become cut off. Power cuts may occur and other services, such as mobile phones, may be affected".
"In addition roads and pavements will turn icy, increasing the chances of accidents or injuries".
The Met Office said around 1-3cm of mostly slushy snow is expected at lower levels and along coastal areas.
More rain is expected tonight as showers from western Scotland are set to shift south-eastwards across the rest of the United Kingdom, which will be hit by blustery showers and strong winds.
Twelve specialist snow blowers have also been prepared for use in Northern Ireland.
Forecasters are predicting the bad weather will hit the area as temperatures plummet to below freezing point overnight on Tuesday.
Arctic winds, hail, and snow are expected.
'Westerly winds will clash with colder air to deliver widespread and heavy snow showers across some large swathes of the country.
A yellow wind warning is in place from 9pm on Wednesday until 1pm on Thursday.
"For people planning to travel by rail, ferry, or plane, it's a similar message - you should check with the operator ahead of time to find out if your service has been affected by the conditions".
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