Big Creek Knob 1

Location Name: 
Big Creek Summit knob 1
Date and time of observation: 
Sun, 02/02/2020 - 11:30
Location Map: 
United States
44° 38' 7.62" N, 115° 47' 59.4528" W
US


Red Flags: 
Recent loading by new snow, wind, or rain

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

Toured out to the first knob on Big Creek Summit Sunday Feb 2nd. About 4-6 inches of new low-density snow from the night before fell on top of a rain/MF crust (same crust from 1/29 obs). This crust was more obvious at lower elevations but supportive throughout. Snow under trees was solid; crust was much more evident here, thanks to melting from previous days.

Dug a pit at ~7400 S/SE slightly below the rock outcropping, in slightly windloaded terrain. Total snowpack at this location was 175cm. Depth hoar present at bottom 5cm, but seems to be consolidating. Weak layer between 115-120cm but was very unreactive. Compression tests yielded no results on this layer despite removing the wind slab from above and really hammering on the shovel. The wind slab (between 120-160cm) showed planar fracturing near 140cm with about 7 from the elbow, fracturing in 2-3cm thick slabs, no propagation.

Snowpack photos: 
fullpit
weaklayer
bottomhardness
tophardness
Any other comments about the observation or links to outside pages that have more info on the observation: 

Began the day expecting to fight the crust from the 1/29 obs, was pleasantly surprised by the quality of the new storm snow and by the overall snowpack stability on S/SE aspects. Crust was only an issue on lower elevation, but was supportive throughout. The cooling trend over the last 48 hours really helped

Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
Snow
Air temperature trend: 
Cooling
Wind Direction: 
Northwest
Accumulation rate: 
Greater than 1 in. per hour
More detailed information about the weather: 

Summit/ridgetop winds moderate from NW, less snowfall than middle elevations.

Middle elevations steady snow after 12pm, calm wind