HURRICANE Dorian could trigger a heatwave in Britain this week – after the UK is first blasted with a 2,000-mile wide polar chill from Iceland.
The Met Office said the Category 5 storm is most likely to spin from the Bahamas to Iceland or Greenland, sucking warm high pressure to Britain in a week’s time.
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Heatwave conditions in the UK can be caused by ex-hurricanes, ex-BBC and Met Office forecaster John Hammond of weathertrending said.
The Met Office said a less-likely scenario sees Dorian pass closer to Britain, bringing wet conditions.
But first, snow is forecast on Scotland’s mountains from today, Mountain Weather Information Service said.
The Met Office forecast polar maritime air from Iceland bringing frost in Scotland and 2C nights, with 4C lows in England.
A North-South split sees the 17C North face days of rain and 50mph gales, while the drier south will see 21C.
Met Office forecaster Craig Snell, speaking on Sunday, said: “Hurricane Dorian’s most likely path is between Iceland and Greenland, which would allow high pressure to build for the UK, bringing a spell of warmer weather.
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“But if the tail end of Dorian passes just north of the UK, some unsettled days with wet weather would be likely.
“Any impacts on the UK would be in just over a week’s time. But Dorian could also fizzle away. Its path will be clearer in a few days.”
Hurricane Dorian has pounded the Bahamas with destructive 225mph gusts as the “life-threatening” storm rages towards the US.
Ex-BBC and Met Office forecaster John Hammond of weathertrending said: “The most significant factor for the UK’s September could be Hurricane Dorian.
“Ex-hurricanes’ impacts on the UK have ranged from disruptive wind and rain to heatwaves.”
Mr Snell said: “Autumn is starting with polar maritime air from Iceland through the week, meaning a notable drop in temperatures from the 33C Bank Holiday a week ago.
“There’s potential for ground frost in Scotland, with 2C lows, and 4C in England.
“A North-South split will see the bulk of the rain in the North, with 40–50 mph coastal gales in the North West on Wednesday, but with the South brighter and seeing 21C highs.”
Mountain Weather Information Service said: “Temperatures will fall close to zero on Scottish summits, with showers falling at least temporarily as snow.”
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