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Forecasters are predicting the cold weather could last well into April raising fears about the elderly and vulnerable. In Northern Ireland, the helicopters have been out again delivering emergency food supplies to remote farms and communities cut off by deep snow.
From County Down, ITV News Reporter Marc Mallett:
Northern Irish Sheep Farmer James McHenry, who said he was "born to sheep" and has kept the animals his entire life has seen his farmer career will come to an end due to the recent severe weather.
Mr McHenry said, "I realised last night that my farming career is over and I've spoken to other farmers who in something similar and this is it. It's the end of an era. When those sheep in the field are dead, they are irreplaceable."
Scottish and Southern Energy Power Distribution has said it expects to restore power to the majority of homes that are still cut off in western Scotland.
It said its engineers had "effectively established the equivalent of two new power stations" to provide temporary power, one on Arran and one on the Kintyre peninsula.
It predicts that less than 100 homes on Kintyre and around 350 homes on Arran will remain without power overnight, while the majority should be reconnected by 6pm tonight.
The Chinook made deliveries to the Glens of Antrim on Tuesday, and is now understood to be heading to the Dromara area of South Down.
Agriculture Minister Michelle O'Neill said that the Irish Air Corps was also providing air support to help find and rescue stranded livestock.
Around 1,650 homes are still without power in western Scotland after the wintry conditions damaged power lines.
Scottish and Southern Energy said 925 homes remained cut off overnight in Kintyre, Argyll, and 725 on the Isle of Arran.
The firm said its hopes to have everyone connected to a temporary power supply by the end of Thursday.
Scottish Transport Minister Keith Brown told BBC Radio Scotland said that a "huge effort" by all agencies involved has reduced the number of people without power "by about 90% from about 18,000 ... to below 2,000".
The freezing weather engulfing the UK could last until the end of April, weather forecasters have predicted.
The Met Office suggests temperatures are unlikely to recover to normal averages until the latter part of next month.
It has issued a cold weather alert for much of England, with a 100% probability of severe cold weather and icy conditions until Friday.
Yesterday Scottish and Southern Energy restored electricity to 700 homes and 400 engineers are expected to continue their efforts today to fix power lines toppled by heavy snow.
It is thought the hundreds of homes still without power everyone will be reconnected by the end of tomorrow.
Latest ITV News reports
The wintry conditions are now expected to last well into April with this month on track to become the coldest March since 1962.
A group of students from Wolverhampton who were stranded in extreme snow in Scotland for more than three days tell their story of survival.