Weather models have changed in the past 24 hours putting the ferocious tempest on a direct collision course with the UK.
A third low-pressure system spotted today lurking off the coast of Canada threatens to join the party creating a trio of misery.
Swathes of the country are on alert for severe gales, travel chaos and power outages into the start of next week.
It could be the most significant storm to hit the UK since Doris ripped through the country in February.
Latest models show Hurricane Maria, now returned to a Category 1, after momentarily weakening to a tropical storm, making a northeastward u-turn tomorrow before heading towards the North Atlantic.
Storm latest path: Hurricane Maria and Lee are strenthening in the Atlantic
UK storm latest: Maximum wind speeds as the storm hits UK
Maria will collide with Lee – currently a category-3 hurricane – between now and Friday creating a huge and rapidly deepening storm system.
Forecasters say a third low-pressure system discovered near Newfoundland could hitch a ride with Maria and Lee adding further vigour to the mix.
While there is still uncertainty around timings and severity, forecasters say torrential rain and gales are likely to set in on Sunday night.
The storm will then sweep northwards away from the UK leaving a clear and settled picture for the rest of the week.
Northwest Scotland and the west coast of England are braced for the biggest hit according to latest weather models.
Hurricane Maria and Hurricane Lee will smash Britain with a third area of low pressure
Ex-Hurricane Lee and Ex-Hurricane Maria will hit Britain Sunday night into Monday
Jim Dale, forecaster for British Weather Services, said gusts of between 60 and 70mph are likely to batter the worst-hit regions.
He said: “We are certainly looking at a wet and windy weekend, it all still depends on how Maria and Lee converge and the path they take.
“At the moment it is a very messy picture, but the most likely situation is that we see northwest Scotland and western Britain on the receiving end of some very wet and windy weather.
“We are almost certainly looking at severe gales with perhaps storm-force gusts from Sunday into Monday.
“Elsewhere most places will be gusty and are in for some typical, unsettled autumnal conditions.”
A third weather system has developed off the coast of Newfoundland
GFS ensemble models show the two hurricanes smashing together then hitting…