Heavy rain brings risk of flash floods to Metro Vancouver, Vancouver Island


B.C.’s hot, dry summer has come to a sudden end, with a deluge of heavy rain over the coming weekend threatening to trigger flash flooding on the South Coast.
The rain began overnight Thursday, with more expected over the next four days in the Vancouver area than had fallen all summer, says Matt MacDonald, an Environment Canada meteorologist.
A low-pressure system that has been sitting off the West Coast will make its way inland, picking up even more moisture from a tropical storm, which struck Hawaii earlier this week.
Forecasters expect from 80 to 120 millimetres of rain between Friday morning and Monday afternoon, compared to the 41 millimetres between June and late August.
“To see this at the end of August is pretty impressive,” he said. “This is definitely substantial. This kind of thing we usually see in October or November when we get to our storm systems.”
About 20 to 30 millimetres are expected to carry over into the mountainous regions of the Interior B.C. during the same period.

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