Awesome Allison Accumulation !!
southrockies,
Wednesday 19th April, 2023 4:20PM
<p>You might have heard of the “Fernie Factor”, well today we saw the “Awesome Allison Accumulation!”
There was an “upslope storm” (snowstorm from the East / Southeast) today that really delivered for the Crowsnest …. 35 cm at 1950 m by end of day!
Such a lot of snow arriving in a short time (Signs of Instability) gave us widespread dry loose avalanches to Size 1.5, coming out of steep alpine start zones, running mid to bottom of track. We didn’t see any slab avalanches.
There was already 20 to 25 cm of new snow at 1950 m on our arrival at 11am, and it continued to snow all afternoon, sometimes as much as 6 cm per hour. When we left the terrain at 3pm, there was 35 cm of new snow.
We saw Moderate wind gusts from the north at ridgetop, which was building some wind slab. These wind slabs were occasionally but not consistently reactive to our ski cuts.
With overcast sky, it remained cool at -5 at our high point of 2250 m at midday.
Oh, and did i mention:
!!GREAT SLEDDING, GREAT SKIING !!</p>
Avalanche Conditions
30cm + of new snow, or significant drifting, or rain in the last 48 hours.
Snow Conditions
Deep powder.
Weather Conditions
Cloudy.
Location: 49.73590959 -114.62631214