New Brunswick Tribune

Wednesday, December 1, 2021

The next 3 storms expected to reach B.C. are expected to be atmospheric rivers

Key takeaways:

  • B.C. is poised to be engulfed in yet another series of storms, with no sign of relief in sight.
  • Environment Canada has issued a special weather bulletin for Metro Vancouver and the Fraser Valley.

B.C. is about to enter another round of storms, with little respite in sight.

A Global BC Meteorologist, Kristi Gordon, says these storms are on top of the 200 percent or more above-average precipitation the province has already had in many regions this fall.

Because the first three storms are projected to be atmospheric rivers, the next sequence of storms could push November’s rainfall totals to new highs.

The first storm is predicted to hit the coast late Wednesday, with the greatest rain falling on the South Coast until early Friday morning.

A special weather statement has been issued by Environment Canada for Metro Vancouver and also the Fraser Valley, particularly near the mountains. 

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The Sunshine Coast from Gibsons to Earls Cove and the Sea to Sky corridor are predicted to get 40 to 80 mm of rain by Friday morning.

“This storm will be less strong and shorter-lived than the one that occurred from November 13 to 15,” Environment Canada stated in a statement.

“However, moderate to heavy rain and severe winds are expected.” Additionally, on Thursday, freezing levels will surge above mountain peaks. This might exacerbate current flooding and have a negative impact on landscapes and infrastructure.”

According to Gordon, over the last few days, areas like the Coquihalla have received up to 25 cm of snow. There is concern that the moisture from melting snow and additional significant rainfall will impact the region, especially given the region’s fragility.

Next 3 storms to hit B.C. expected to be atmospheric rivers | Globalnews.ca

A rain warning has been issued for north Vancouver Island, with rainfall likely to range between 50 and 100 mm.

According to Environment Canada, the rain will start on Wednesday afternoon and last until Thursday afternoon.

Strong winds and flooding are also a risk owing to the already saturated land.

A rainfall alert has been declared for the Central Coast, with 30 to 50 mm of rain predicted from Wednesday afternoon through Thursday afternoon. 

The region’s biggest concern is the danger of localized flooding over low-lying regions due to rain and rising freezing levels causing major snowmelt.

Rain is forecast for west Vancouver Island from Wednesday night until Thursday midday.

According to Environment Canada, the hardest-hit areas will be from Ucluelet northwards, where 100 to 150 mm of rain is forecast.

According to Gordon, the South Coast will be hammered by a second atmospheric river on Saturday, bringing heavy rain through the early part of Sunday. A third one is expected Monday into Tuesday.

“On normal, we have 20 to 30 atmospheric rivers from October to spring,” she said, “but this has been a spectacular fall to yet.”

Source: Global News

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