The biggest storm in years could hit the Ely area next week, with forecasters warning of strong winds which could fell trees and damage buildings.
Gusts of 70mph or more could whip across the region early on Monday, according to the Met Office, which said disruption to transport and power supplies was possible.
Persistent and heavy rain could cause some flooding too.
The Met Office said that, if the storm arrives in line with current predictions, some areas could see some of their strongest winds for a number of years.
The storm has been dubbed the ‘Saint Jude Day Storm’ – after the patron saint of desperation and lost causes – and is set to arrive just in time for the half-term holidays.
Eddy Carroll, the Met Office’s chief forecaster, said: “This storm doesn’t exist at the moment, but our forecasts models predict it is likely to develop in the west Atlantic on Saturday. Then it’s likely to rapidly intensify just west of the UK late on Sunday before tracking across England and Wales early on Monday.
“There is still a chance this storm may take a more southerly track and miss the UK, bringing impacts elsewhere in northern Europe, but people should be aware there is a risk of severe weather and significant disruption.
“With that in mind, people should keep up to date with and act on the advice in our forecasts and warnings as the situation develops.”
A yellow weather warning has been issued for southern England and Wales on Monday, calling for people to stay aware.
Normally Atlantic storms of this type develop much further to the west of the UK and are waning in strength by the time they reach land.
This storm is more unusual, developing much closer to the UK and potentially tracking across the country while still in its most powerful phase. A strong jet stream and warm air close to the UK are both contributing to the development and strength of the storm.