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B.C.: Heavy rain to close out the week, risk of avalanches

Thursday, April 18th 2019, 7:54 pm - Heavy rainfall is set to close out the work week in British Columbia

The long weekend will begin on a soggy note for folks in Victoria and the Lower Mainland thanks to a potent low pressure system tracking through the area. Up in the mountains freezing levels remain fairly elevated with much of this region seeing between 10 to 30 cm of snow. Rain is expected through the mountain passes, which is partially responsible for the increased risk of avalanches. More details on the timing of the precipitation and rainfall totals, below

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WEATHER HIGHLIGHTS

  • Heavy rain through Thursday, with many seeing between 30 to 75 mm
  • Snow levels rise above 2,000 metres Thursday, drop to 1,000 metres by Friday
  • Cool, calm on the weekend, next system arrives either Sunday night or Monday

WATCH BELOW: TIMING OUT THE ROUNDS OF RAIN

The bulk of the moisture-laden system will deliver a significant amount of rain overnight Thursday and continue into Friday. Throughout the day on Friday between 40 to 60 mm of rain could accumulate through the Lower Mainland, and 30 to 50 mm could accumulate in surrounding regions.

BCraina18

At higher elevations, snow levels rise to 2,000 metres, with plenty of rain for ski areas, accelerating snowmelt and driving the last nails into the coffin of ski season.

Just east of the border with Alberta, three world-renowned mountain climbers have been presumed dead after an avalanche at Banff National Park. The recent mild conditions and precipitation have increased the avalanche risk at many locations in B.C. and Alberta, and are limiting the extent of the search that park officials can do.

Avalancherating

Sea to Sky & Whistler are seeing a considerable avalanche danger rating and North Shore & South Coast are seeing a high avalanche danger rating.

As precipitation winds down on Friday, a drop in freezing levels to 1,000 metres is ahead, with cooler but pleasant weather widespread through the weekend beyond.

A weak ridge that is building over this region will be responsible for the dry conditions that many will enjoy throughout Saturday and Sunday, as well as continuous hours of sunshine. The balmy weather will not be as long-lived as many hope, however, as another low pressure system is eyeing the coast and threatening to track in.

"We'll watch the timing of the next system," Weather Network meteorologist Dr. Doug Gillham says. "Currently, it's not expected until Sunday night or Monday."

WATCH BELOW: BEAVER WORKS "DAM" HARD TO DRAG BRANCH ACROSS SLIPPERY ROAD

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