'Nervously watching' two more potent Pacific systems in flood-ravaged B.C.

·2 min read
'Nervously watching' two more potent Pacific systems in flood-ravaged B.C.
'Nervously watching' two more potent Pacific systems in flood-ravaged B.C.

With very little time to dry out from last week's devastating atmospheric river system, the storm parade refuses to let up across British Columbia. Just as one storm system winds down through Friday, forecasters are already nervously watching the next system to move in this weekend, with yet another following closely behind for early next week as well.

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"There's at least two more potent Pacific low pressure systems that are poised to really push a tropical air mass down from the Hawaiian islands, northward," says Tyler Hamilton, a meteorologist at The Weather Network.

Special weather statements are already in effect for the next system, which will approach the South Coast as early as Saturday. More on the timing and impacts, below.

FRIDAY INTO SATURDAY: WEAKER ATMOSPHERIC RIVER WINDS DOWN, BUT NEXT SYSTEM CLOSELY FOLLOWS

People across the south of B.C. faced additional rainfall on Thursday, as the latest atmospheric river crept southward, threatening the already flood-vulnerable areas of the province.

While there will be a brief break in the precipitation for Friday, the region braces for yet another storm to hit on Saturday, with special weather statements in place for up to 100 mm of rain.

A Flood Watch from the River Forecast Center is also in effect for the South Coast and Lower Fraser Valley regions.

rivers
rivers

Rain is set to begin for most areas on Saturday morning, though the heaviest amounts are expected to fall through Saturday night. Between 50-100 mm is forecast from Saturday to Sunday morning, with the heavier totals likely for areas near the mountains.

Worsening matters, freezing levels soared above 2,000 metres Thursday, with many high-elevation areas already having several centimetres of accumulated snow.

"Strong warming will accompany this system causing snow levels to rise well above the mountain tops Saturday afternoon," Environment and Climate Change Canada warns. "Snowmelt will contribute to run off, increasing the risk of flooding and possibly impacting vulnerable landscapes and infrastructure."

bcrain2
bcrain2

LONG RANGE: EXCESSIVE RAINFALL TOTALS WITH BACK-TO-BACK STORMS

This weekend's storm won't be the end of it either, as another potent system is expected early next week for Tuesday into Wednesday.

Seven-day rainfall totals of 75-125 mm are anticipated for much of the Lower Mainland, with 125-250+ mm for alpine regions and the west coast of Vancouver Island.

bclr
bclr

CANADA GETTING ITS OWN ATMOSPHERIC RIVER RATING SCALE

Click here to view the video

Check back as we continue to monitor the ongoing storm parade across British Columbia.

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