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Crying clouds: Up to 75 mm of rain could flood Tri-City neighbourhoods before the weekend

Environment Canada has issued a special weather statement for heavy rain across Metro Vancouver.
rainfall heavy rain drops
Heavy rainfall creating puddles on the road. | File photo

Store away the hoodies and sweats, and break out the raincoats and gumboots.

Heavy rain is in the forecast for Metro Vancouver this week as Environment Canada has put a special weather statement in effect for the region's northeast communities of Coquitlam, Port Coquitlam, Port Moody, Anmore and Belcarra.

According to Angela Yeung, an environmental and worksite bylaw officer with the City of Coquitlam, up to 75 mm of rain could fall by Friday (Sept. 17), drenching and potentially flooding local neighbourhoods.

"Erosion and sediment control measures must be implemented in preparation for this weather," she says in a statement.

"Please be diligent in checking that exposed soils are well protected and that paved surfaces are swept. Catch basin filters should be cleared of debris or removed in areas that are prone to flooding."

Environment Canada's forecast explains a frontal system is currently approaching B.C.'s coast.

The national service is predicting the rain to start downpouring tomorrow night (Sept. 16) and ease by the early hours of Saturday (Sept. 18), with the heaviest drops in Friday's forecast.

"Consider clearing leaves and debris from drainage areas as the heavy rain could pose issues with regards to potential local flooding," the special weather statement adds.

As of 2 p.m. today (Sept. 15), the City of Coquitlam has accumulated 35 mm of rain in September thus far. This is according to data provided by the city's rain gauge on Burke Mountain.

In August, the machine recorded 52.5 mm as summer's warmer conditions began to shift in the middle of the month.

The weekend forecast for the Tri-Cities is showing more rain, but for shorter periods of time including a 70 per cent chance on Sunday morning (Sept. 19) and 60 per cent on election day-Monday (Sept. 20).

Environment Canada - Sept. 15, 2021