Another storm to hit B.C., bringing more rain to flood-ravaged communities

Environment Canada said another atmospheric river will dump up to 80 millimetres of rain on the B.C. south coast.

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British Columbia is bracing for more rain this week even as thousands of residents hard hit by last week’s storm remain out of their homes.

Environment Canada said another atmospheric river is expected to hit the B.C. south coast Wednesday night, dumping up to 80 millimetres of rain.

It has issued a rainfall warning for Metro Vancouver, the Fraser Valley and Howe Sound, saying a new round of heavy rain is on the way.

“The next nine or 10 days could be quite challenging,” said Public Safety Minister Mike Farnworth at a news conference Tuesday, asking residents to pay close attention to the weather forecasts.

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The rain is expected to arrive Wednesday night, with the heaviest precipitation falling on Thursday before easing later that night.

Some sections of Metro Vancouver and Howe Sound will get up to 80 mm of rain by Thursday night, while the Fraser Valley will see 50 to 70 mm by Friday morning.

Freezing levels will rise to above mountain tops on Thursday, which could trigger snowmelt and worsen recent flooding, said the weather agency.

This storm is not expected to be as intense as the atmospheric river on Nov. 13 to 15 that brought a heavy deluge that triggered landslides and flooding  and forced evacuations in the Fraser Valley and the Interior.

Environment Canada also warned of potential heavy snowfall on the Sea-to-Sky Highway between Squamish and Whistler.

Up to 15 cm of heavy wet snow could fall on the highway starting Wednesday night. That snow will turn to rain Thursday when freezing levels rise.

weather agency said there are uncertainties around the precipitation amounts, and warned drivers to monitor forecasts at DriveBC and be prepared for potentially hazardous driving conditions on mountain roads.

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