High Elevation Snowpack

Location Name: 
Williams Lake Area
Region: 
Williams Lake Area
Date and time of observation: 
Sun, 12/03/2017 - 09:29
Location Map: 
United States
36° 33' 44.5644" N, 105° 26' 38.202" W
US


Red Flags: 

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

4 to 6" of snow from the Nov 28th storm is still lingering above 9500' on Northerly and shady aspects.  This snow is mostly small grained facets that fell on bare ground.  Above 11,500' Northerly aspects have a layer of 2-3mm depth hoar that has developed from the Nov 7th and Nov 18th storms with the 4 to 6" of snow from the late November storm sitting on top of that.  The past weeks moderate winds have produced isolated wind slabs at higher elevations.  Widespread near surface faceting and surface hoar was observed on the "hike".  High elevation northerly aspects have a poor snowpack structure with wind slabs on top of depth hoar.  Even with moderate winds no snow was being transported.

Photo 1:  East facing chute at 12,400' that has snow on north aspect with no snow on the south aspect

Photo 2: The widespread near surface faceting that was found

Photo 3: High elevation north snowpit showing the wind slab with depth hoar on the ground

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
75% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
Air temperature trend: 
Warming
Wind Direction: 
Southwest
Accumulation rate: 
More detailed information about the weather: