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Observation: Swan Peak

Observation Date
1/10/2022
Observer Name
Richie Schumacher
Region
Logan » Garden City Canyon » Swan Peak
Location Name or Route
Garden City Bowls, Swan Peak, Stump Hollow
Avalanche Problem #1
Problem
Normal Caution
Trend
Same
Problem #1 Comments
Did not find evidence of PWL near the ground on the East and SW aspects that we took a look at. I do suspect that the PWL is lingering on high northerly aspects still, especially in thinner spots, however none observed today. Solar radiaton was definitely changing the surface of the snowpack throughout the day, but not enough to produce wet avalanche problems during our time there. Some small wind loads noted, but mostly provided good skiing on the lower angle slopes we skied.
Comments
Observed weather was calm winds, cold turning to mild temps, with intense solar radiation and clear skies throughout the day.
We spent the AM in the Stump Hollow area on Northwest, North, and Northeast aspects where we found a 1-2cm crust covering most everything with a few CMs of fluffy snow on top and capped by small surface hoar (pictured). This made for some tough skiing, but solar aspects seemed to be improving as the day continued. Snowpack depth was variable in the area.
Our Stump Hollow pit (pictured) was dug near a wind loaded ridge on an East aspect at 7500' with HS of 157CM. Overall, the pit had a nice snowpack structure with 1F (variability within 1F +/-) from the ground up to the crust. The crust was capped with several CMs of fluffy snow and SH on top.
We moved over to the Garden City Bowls/ Swan Peak area for the PM and we skied an East aspect of Garden City bowls, and a Southwest aspect of Swan Peak and found some great skiing conditions. We found much less of a crust in this location, and where we did find it, it was nice and supportable. The sun seemed to be really taking a hold of surface snow conditions by mid-day, making uphill more sticky, but downhill nice and buttery. Most of the surface hoar on solar aspects seemed to be baking away, however shaded aspects were growing strong (pictured)
Our Swan peak Pit (pictured) was dug on an open face on a SW aspect at 8400' with HS of 97CM. Our pit here also had a fairly nice snowpack structure with 1F- turning to 1F from the ground up about 60-65 CM where it turned to 4F up to the crust and was capped with some soft F hard snow.
Overall, great day of skiing. These crusts and how they change over the coming days may be something to keep track of moving forward as well as the PWL on thin, high, and more northerly slopes and surface hoar development prior to the next storm cycle.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate