Avalanche danger on Grouse Mountain leads to trail closures
Posted January 2, 2022 9:14 pm.
Chances there will be an avalanche on Grouse Mountain are higher than usual, prompting the closure of snowshoeing trails in the area.
It’s a four, the highest level before the highest, “Extreme”, according to Avalanche Canada.
Locals can thank the heavy snowfall, high wind, and warming temperatures for the risky conditions, which caused small slab avalanches along the Sea to Sky on Friday.
With that in mind, snow school lessons were also postponed for the day and Munday Alpine Snowshoe Park was shut down.
The Munday Alpine Snowshoe Park will be closed today due to high avalanche danger.
All Snow School lessons have been postponed until your next scheduled lesson date. A Snow School credit will be added to your account. https://t.co/apmpcobPCF
— Grouse Mountain (@grousemountain) January 2, 2022
The ski hill, sky ride, and chalet were still open until 6:00 p.m. Sunday.
“We have been paying close attention to the early December crust, which has formed a persistent weak layer in the region,” says the attached avalanche summary from Avalanche Canada.
“The last reported avalanche on this layer was on Dec. 24, but it produced several notable avalanches around Dec. 16 at elevations between 1,800 and 2,100 metres.”
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Potential visitors are encouraged to check the Avalanche Canada website and social media for updates before coming up, given how unpredictable and extreme weather has been in B.C. recently.
“If triggered, storm slabs in-motion may step down to deeper layers and result in very large avalanches,” its website reads.
“Avoid thin areas like rock outcroppings where you’re most likely to trigger avalanches failing on deep weak layers.”
How do you manage a spotty persistent slab problem? Our latest forecaster blog looks at how last month’s atmospheric river left us with a spotty problem and why that’s not easy to get a grip on.
Read the blog https://t.co/YWZGGQmRyJ pic.twitter.com/fkrLuvNeHd— Avalanche Canada (@avalancheca) December 30, 2021
If you have plans to head to the backcountry, make sure you’re able to stay away from avalanche terrain and falling snow and ice.
Monday is set to be another stormy day with up to 40 cm of new snow, with the heaviest accumulation around Squamish, according to Avalanche Canada.