Storm Fiona brought winds of 93mph to parts of Canada on Saturday morning - one of the most powerful storms to hit the country in decades. The ex-hurricane is bringing heavy rainfall, severe winds and a storm surge, and despite causing havoc across the Atlantic it will have an effect on the UK's weather.
Temperatures are set to plunge at the start of next week, and it will be so cold there could even be wintry showers in northern parts of the UK.
The Met Office forecast for the start of next week in Wales says that it will be "feeling rather cool in the brisk wind."
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BBC weather forecaster Ben Rich explains: "It is going to be the strongest storm of this type that Canada has seen for quite a few decades. The storm is not heading directly our way, but it is going to have an influence on our weather. As it shifts its way northwards, it is going to help to build an area of high pressure.
"Winds around high pressure flow in a clockwise direction, and that will feed something much colder our way into the start of next week. So we are going to see much lower temperatures, some places in the north could even see wintry showers."
The Met Office forecast for Wales from Monday to Wednesday says: " Monday, a mix of sunny spells and showers. Feeling rather cool in the brisk wind. Tuesday, largely dry with sunny spells and lighter winds. Feeling cool. Showers again on Wednesday."
The Met office forecast for the UK says: "A cold plunge of air from the north late Sunday will allow overnight temperatures to tumble early next week. Some cold nights to come for many with a risk of a frost across the north of the UK."
The long-range forecast for the UK into October, says that it will be "unsettled", with low pressure systems bringing showers or longer periods of rain, especially in the west.
But while temperatures fall next week, they will start to trend "close to or slightly above average" for the time of year.
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