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Heavy rain, possible flooding expected in parts of Metro Vancouver

Last Updated Sep 21, 2018 at 7:51 pm PDT

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Rainfall warning issued for parts of Metro Vancouver, with total accumulations of up to 75 mm of rain expected in parts

METRO VANCOUVER (NEWS 1130) – We’re in for a downpour.

A rainfall warning has been issued for parts of the region, with some areas expecting up to 75 millimetres of rain.

Areas impacted include Coquitlam and Maple Ridge, as well as the North Shore including West Vancouver and North Vancouver.

Environment Canada says a Pacific low pressure system is to blame, as it brings heavy rain through Vancouver Island and the south coast overnight. It warns of possible localized flooding in low-lying areas, as well as possible washouts near rivers, creeks and culverts.

“I would say the biggest concern will be some of the heavy downpours that will be embedded in the rain as it moves through with this low pressure system,” NEWS 1130 Meteorologist Michael Kuss explains.

“So we could see some thunderstorms in there and that’s when you get the rain coming down at a rapid enough rate to create localized flooding.”

He says some areas might get it worse than others.

“Up against the mountains, out in Pitt Meadows, Maple Ridge, really everywhere north of the river stretching out of the Valley — that is where the rain will be the heaviest, and that’s where we could see 50 plus millimetres of rain, mainly through the evening, overnight, and tapering off into the morning.”

Kuss adds the good news is the low pressure system will clear out over the weekend, and the warm, dry weather will return.

Meantime, a special weather statement has been issued for parts of the Fraser Valley, including Chilliwack, Hope, and Abbotsford.

Rainfall totals of up to 30 millimetres are expected in parts of that region, with conditions improving on Saturday.

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