YESTERDAY:
Early Monday morning.There were some patches of blue in the am.
2240 meters -12, Winds were 0-10 KPH SE--Horstman Hut
1860 meters -10, Winds were 15-20 KPH ESE --Rendezvous
1570 meters -8, 1 cm in 12 Hrs, 2 cm in 24 Hrs, Base 187 cm--Catskinner
FORECAST:
A weak upper trough will bring unsettled weather for today in a Westerly flow aloft. Will see some flurries this morning with a mix of sun and cloud later this am into the afternoon. The FL will likely hover around surface, chance it might go to 800 meters but back to surface tonight. Weak ridging overnight into Wednesday morning, unsettled weather by the am into the afternoon on Wednesday. Increasing cloud cover Wednesday afternoon as the next frontal band brings light snow Wednesday night into Thursday. Periods of light snow will continue Thursday with unsettled weather by the afternoon. Flurries and a mix of sun and cloud. Unsettled Friday with sunnier weather by Saturday. Guesstimates: trace-2 cm by Wednesday am, 10-15 cm by Thursday am, 2-4 cm by Friday am, trace-1 cm by Saturday am.
AVALANCHE ACTIVITY:
An avalanche has killed a ski tourer on closed Les 2 Alpes ski run. Article below. Net PicFrom Sea to Sky avalanche advisory:
Avalanche Summary
Sunday night's storm resulted in a natural avalanche cycle, with storm slabs up to size 2.5 on wind loaded features. Explosive control on Monday produced several size 2 avalanches (roughly 50 cm thick). On Sunday, during the early stages of the storm, there were several reports of size 1-1.5 human triggered storm slab avalanches (10-25 cm thick). Looking forward, strong wind has likely left reactive slabs at upper elevations.
Snowpack Summary
The weekend's storm delivered 30 cm to the Whistler area and up to 60 cm in deeper areas further west and south. Alpine terrain is likely heavily wind-affected, while a rain crust will form below 1300 m. This snow buried a layer of surface hoar and crusts, but the snow is expected to bond quickly to these layers. The lower snowpack has become strong and bonded.
INFORMATION & OBSERVATIONS:
Lots of rime yesterday am.FROM SEA TO SKY MIN REPORTS:
Round Mountain: Feb 22, 2021
Hanging Lake-CallaTree: Feb 22, 2021
VIDEOS:
Powder Picker Feb 22, 2021: David Jones
ARTICLES:
An avalanche has killed a snowmobiler near Chetywnd: Northern B.C.
A ski tourer has died in an avalanche on closed Les 2 Alpes Ski Piste: France
Avalanche closes road to wharf at Bella Coola: Coast Mtn News
Passes opened after avalanche control on Snoqualmie, White Passes: Washington State
Avalanche survivors promoting safety to others heading into the backcountry: Alberta Skiers
Submit your best avalanche photo for a pair of Goggles Feb 1-28, 2021. Sea to Sky Area.
Thanks to Volkl Canada for sponsoring.
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