Observations from Trimmer

Location Name: 
Trimmer Peak
Region: 
Luther Pass Area (including Job and Freel)
Date and time of observation: 
Mon, 01/16/2017 - 12:00
Location Map: 
United States
38° 52' 44.4252" N, 119° 55' 45.444" W
See map: Google Maps
US



Observation made by: Professional Observer
Snowpit Observations
More detailed information about the snowpack: 

Pic 1: Near surface facets and surface hoar were observed throughout the Trimmer area on all but the sunniest slopes or those most protected from radiation loss. Treed slopes with wide enough spacing for easy descending had both SH and NSF. Picture from a shovel tilt test consistent with other informal obs in the area, with surface layer above fracture observed to be small angular grains.

Pic 2: Surface hoar surviving into mid-day on an indirect sunny aspect that also had a thin melt freeze crust under the SH.

Pic 3: Continued signs of settlement of last week's storm snow.

HS of 125cm observed on Trimmer Bonus Face, with little indication of old snow present. "One-storm-snowpack" on this terrain feature, though it was supportable to skis and had good enough coverage for descending. HS of 250cm observed adjacent to Trimmer 11's start zones. No facets observed above Jan 9th rain crust, which was 125cm from surface at 8800ft on N aspect.

Snowpack photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Air temperature trend: 
Warming
More detailed information about the weather: 

Occasional light E wind at Trimmer ridge, but otherwise a calm day with continued inversion observed.