Donal Drohan, 51, was killed on Monday morning when his car was crushed by a tree in Watford, England.
According to police, a millisecond would have made for "a different story".
His family have paid tribute to him, saying: "He was the best husband and father anyone could wish for. You couldn't find anyone who had a bad word to say about him."
In Kent, a 17-year-old girl died when a tree fell on the static home she had been sleeping in.
She has been named by her school as Bethany 'Gia' Freeman and a sixth form pupil who had "everything to look forward to".
And in Hounslow, west London, a man and a woman were killed in an explosion caused by the storm - the blast was triggered when a tree fell on the building.
As one of the worst storms to hit Britain in five years, St Jude has caused devastation with gusts of 80mph battering many parts.
More than 200,000 people have reportedly been left without power.
The Met Office said winds reaching 99mph were recorded on the Isle of Wight. Severe weather warnings and flood warnings have been issued.
And as a precautionary measure the Dungeness nuclear power station in Kent automatically shut down after power to the facility was interrupted.
Earlier there was major travel disruption with a number of flights from Northern Ireland to Heathrow, as well as ferry transport, badly affected.
British Airways noted a 20% reduction in its early morning flights.
Eight services between Heathrow and Ireland were cancelled and Aer Lingus services between Dublin, Cork, Belfast and Heathrow were hit.
Passengers were advised to contact their airlines for the latest updates.
There has also been disruption to ferry services with sailings between Larne and Cairnryan cancelled at 7.30am and 10.30am, 1.30pm and 4.30pm.
P&O said: "Later sailings may also be subject to disruptions and information will be updated as soon as possible.
"We will endeavour to contact those passengers who may be affected by the disruptions."