A blast of weather all the way from Siberia in Russian Federation could be set to hit Ireland over the coming days according to the latest Irish and United Kingdom forecast as Spring sunshine is replaced by a sub-zero eastern weather front.
Grahame Madge, spokesman for the Met Office, said icy winds will give the impression of colder temperatures.
According to the Met Office, the bitterly cold spell of weather will set in later this week and last into March.
The outlook for Tuesday March 6 to Tuesday March 20 is: "At the start of this period it is likely to remain cold or very cold for many with widespread frost and brisk easterly winds from Continental Europe, making it feel raw".
Forecaster Eleanor Bell, principal meteorologist at The Weather Channel, claimed even colder air is to come.
"Disruption to travel services and school closures are therefore likely within this period due to this being a high confidence scenario, and it would be advisable to pay close attention to any weather warnings for snow".
The freezing temperatures - with air coming from Siberia - is expected to start on Sunday (February 25).
High pressure to the south of Ireland will move across Britain over the coming days triggering the wind change.
"When it reaches Scandinavia - which it will do on Saturday/Sunday - it will direct the air from Siberia and Russian Federation across the United Kingdom and Northern Ireland".
"We advise people to check the weather before going out and if you're not feeling well or are having trouble breathing, stay indoors and keep warm".
"There will be a windchill factor over the coming days which will make it feel much colder than temperatures suggest".
He said we will see "a reasonably long cold spell".
Cold air will be dragged across Britain from the east during the weekend signalling the start of a prolonged wintry blast.
Heavy snow has blanketed Britain as temperatures drop to -11C.
"High pressure from the west will merge with higher pressure over Scandinavia, this will drive a colder wind veering easterly in the run up to the weekend".
"We expect to see temperatures drop from Wednesday as a cold easterly flow develops from Scandinavia or even further east from Russian Federation and Eastern Europe".