B.C. braces for third ‘atmospheric river’ after recent floods

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Flood waters are seen in Abbotsford, BC on November 22, a week after a rainstorm hit British Columbia, causing landslides and flooding and closing highways.Jennifer Gauthier/Reuters

Environment Canada is forecasting a period of heavy rain for many parts of southern and coastal British Columbia today, as parts of the province ravaged by flooding and flooding.

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It said 150 mm of rain could inundate parts of Vancouver Island by Wednesday and the agency warned of rain that could lead to waterlogging on roads and flooding in low-lying areas.

Up to 60 mm are forecast for Vancouver and Abbotsford, with up to 80 mm expected in sections of the Sunshine Coast and Metro Vancouver, including Surrey and Langley, and up to 120 mm near the North Shore Mountains and Squamish.

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Snowmelt can add to increased runoff and flooding as mild temperatures are expected at higher elevations.

BC fears new floods as the storm returns. Here’s what you need to know about forecasts, road closures, and more

Avalanche Canada says powerful storms in the past two weeks have created dangerous conditions in most of the BC mountain ranges.

The organization posted an advisory warning of an “increasingly dangerous avalanche cycle”, as a system of atmospheric rivers brings snow after heavy rains in many areas.

It rates avalanche risk as high to extreme on the south and north-west coast and on mountains in eastern BC from Chetwind south to Castlegar.

People should stay away from the avalanche area because the avalanche “is expected to run full path to the valley floor with the arrival of this third atmospheric river,” the organization says.

Each of the three weather systems that have hit the province since mid-November has dumped large amounts of snow at higher altitudes before turning into rain. Environment Canada says latest storm will raise freezing levels by 3,000 meters, melting snow for rain that’s forecast across BC

Public Safety Minister Mike Farnsworth says his ministry is watching the conditions in the hard-hit Merritt and Abbotsford areas, but is also focusing on flood and slide hazards facing other coastal communities, particularly the Bella Coola Valley. Used to be.

In the Abbotsford area, flooding from earlier storms has already devastated low-lying agricultural areas, but Mayor Henry Braun said Monday that his community has strengthened dykes and protected infrastructure.

Braun said water levels from the Nooksack River in Washington state were slowly falling, easing pressure on highways and dykes protecting farmland in the Canadian side of the border.

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