Freezing conditions to last into Spring across North Yorkshire
- Author: Leroy Wright Feb 25, 2018,
Feb 25, 2018, 11:30
"More snow detail and weather warnings will be issued nearer the time".
Sub-zero temperatures which are going to grip the country next week can cause power cables to break and cause power outages.
Paul Gundersen, a Met Office chief forecaster, said: "Parts of southern England and Wales are likely to see their coldest spell of weather since 2013".
The warning covers most of the United Kingdom on Wednesday, with heavy snow showers forecast across the country.
The cold weather is likely to grip the country and BBC Weather meteorologist Nick Miller said the United Kingdom is expected "very serious" weather.
"Snow showers may become persistent from late Monday afternoon, continuing overnight and throughout Tuesday".
"This is likely to be the coldest air to sweep the United Kingdom for a few years".
"The sudden rise in temperature is due to lower level winds reaching higher altitudes around the Arctic".
Leinster and Ulster will be coldest tonight, with widespread frost.
A vertical undulating line dividing the United Kingdom splits Britain in the Met Office's chart with the east having a "high chance of snow showers, settling in places".
The icy conditions are believed to be caused by a weather phenomenon called a "sudden stratospheric warming" above the North Pole, which will drag very cold air from Siberia to the United Kingdom as early as next week.
This "significant cold period" will last at least a week with temperatures across the country dipping to 3C and 7C over the weekend.
The Met Office says: "Sunny spells and mainly dry through the weekend, but feeling very cold as winds strengthen further".
The snow warnings for Monday and Tuesday cover London and the south east, parts of the Midlands and most of eastern Britain.
Met Eireann will be issuing snow/ice warnings.
Public Health England said it is "critical" to keep an eye on anyone over 65, young children or people with heart or lung conditions.