Storm Amy will kick-start a turbulent autumn supercharged by a duo of hurricanes spinning a ‘tropical tango’ across the Atlantic.
A furious jet stream hurtling towards Britain this weekend will unleash torrential rain and 80mph winds in a once-in-a-century event.
Hurricanes Humberto and Imelda, both Category-5, will join forces in the tropics before heading across the North Atlantic to jolt Britain’s weather.
Adding to the chaos will be a third storm now named Amy, spawned in Humberto’s death throes as experts warn of a ‘lively’ weekend.
Met Office meteorologist Alex Deakin said: “These tropical systems are going to have a big impact as we head into the weekend, and we don’t often see these sort of systems so close together.
“Ahead of Humberto, another little low forms and tracks northwards, and how this interacts with the jet stream will dictate the weather at the weekend, and it could be pretty lively to say the least.
“The jet stream is active, and on Saturday will become really angry over the UK and will help to spin up a deep area of low pressure.
“That is the big feature that is going to cause some issues and a ‘tropical tango’ could be the big talking point over the next few days.”
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Britain's weather at this time of year is often influenced by tropical hurricanes, although the North Atlantic can never support a fully formed hurricane.
Both Imelda and Humberto will die to form ex-hurricanes, regions of energy that go on to disturb our weather patterns.
While autumn hurricanes are usual at this time of year, seeing two category-5 storms at the same time is not.
However, Humberto and Imelda’s joint effort is an almost carbon copy of a freak event last year which spawned a trio of Hurricane’s Milton, Kirk and Leslie.
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Deakin said: “Humberto and Imelda are tropical weather systems, and it is almost 100 years since we have back-to-back seasons with two category-5 hurricanes.
“They are both interacting with each other and pushing nothwards, and that is going to interact with the jet stream as they drift northwards.
“Humberto will become a standard area of low pressure, and it will interact with the jet stream, and they will both feed off each other.
“What is likely to happen is that the jet develops a kink, and that influences the shape of the jet and how it affects another area of low pressure as it approaches the UK.”
Stormy weather is expected to pick up through the end of the week with the strongest gusts expected on Friday.
Out to sea, gusts could hit 90mph with 80mph possible inland if the storm makes a direct hit.
“It is going to pack a punch,” Deakin added.
Scotland and the northwest face the worst of the hammering from Amy, with southern regions getting of lighter.
The Met Office has issued three days of weather warnings for disruption and damage from wind and rain.
After an unusually calm start to autumn, this weekend could herald the start of a run of storms.
Jim Dale, meteorologist for British Weather Services and co-author of ‘Surviving Extreme Weather’, said: “It has been strangely calm through the start of the season, and as the weather seeks to balance, we could now start to see more in the way of autumn storms as we go through October.”