The dead man was on Saturday identified as Kacper Dudek, 20, who was killed when a tree fell on his car at in Co Donegal.

Yellow warnings for rain, wind, snow, and ice are in place across parts of the UK, while flood warnings and alerts are in place in southern England, north Wales, and west Scotland.

In Ireland, 625,000 homes and businesses were without power on Friday evening. While tens of thousands had been reconnected by Saturday morning, engineers said it could take a “significant number of days” for the grid to be fully repaired.

Around 138,000 people were without water, a figure Irish Water said was likely to increase because of power outages at treatment plants and pumping stations.

In Scotland, power had been restored to 134,000 properties by Saturday morning. Around 30,000 remained without supply.

In Northern Ireland, 189,000 homes and businesses remained without power on Saturday morning, although supply had been restored for 96,000 customers.

Northern Ireland Electricity said it could be up to 10 days before all were back on the grid.

The infrastructure department said there were more than incidents of 1,800 fallen trees, branches, and other debris blocking roads.

Paul Morrow, group commander at Northern Ireland Fire and Rescue Service, told BBC Breakfast that scenes witnessed by his crews were “something we’ve never seen before”.

He urged members of the public to remain cautious and heed weather warnings. “We’ve not moved into the recovery phase just yet,” he said.

Northern Irish Education Minister Paul Givan said 60 schools had reported “significant damage to some buildings” and some may not be open on Monday.

The storm also left 20,000 properties in north-west England without power. Reconnection efforts were under way on Saturday morning.