Worst of "atmospheric river" to hit Vancouver today, up to 150 mm of rain expected

Vancouver is under a rainfall warning for a fourth straight day as an “atmospheric” river batters the city.

The warning was issued early Sunday morning by Environment Canada and is in effect for several areas:

• Metro Vancouver – central including the City of Vancouver Burnaby and New Westminster
• Metro Vancouver – North Shore including West Vancouver and North Vancouver
• Metro Vancouver – northeast including Coquitlam and Maple Ridge
• Metro Vancouver – southeast including Surrey and Langley
• Metro Vancouver – southwest including Richmond and Delta

Metro Vancouver, western Fraser Valley, and parts of the Sunshine Coast will see up to 100 mm of rain, while Howe Sound and the eastern Fraser Valley will see up to 150 mm of rain.

“A significant atmospheric river event will bring copious amounts of rain and near record temperatures to the BC south coast today through Monday,” Environment Canada said.

“The rain will be heaviest this afternoon and tonight ahead of the cold front. The heavy rain will ease on Monday as the cold front pushes the precipitation out of the region.”

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The heavy downpours may cause flash floods and water pooling on roads. Localized flooding in low-lying areas is possible as well, Environment Canada said.

Residents should watch for possible washouts near rivers, creeks, and culverts.