Observation type
Snowpack

Observer
Allen Giernet

Keep me anonymous if published
no

Location (general area)
Baden Powel

Latitude

Longitude

Date (yyyymmdd)
20200317

Time
1746

Road conditions to area
Plowed but snow covered

Temperature
-6C

Sky
Scattered clouds (3/8 to 4/8)

Wind speed
Calm (smoke rises vertically)

Wind direction
not observed

Wind direction in degrees

Slope aspect
North West

Aspect in degrees
310

Slope angle
39

Elevation
7,600'

Snow depth
52cm

Boot/ Ski penetration

Precipitation
None

Activity, recent avalanches
No

Brief description

Whumphing noises, shooting cracks. collapsing
no

Rapid warming
yes

Obvious avalanche path
yes

Terrain trap
yes

Comment
Grassy hollow road closure
AT - 22F @ Vincent Gap trailhead 1100am

7100’ hand pit wind skin about 12cm from top easy release of wind drifted snow. N aspect 

8000’ 
1500 pm
S1 snowing, earlier graupel was falling. 
Sky Obs 
Wind calm
BP top of boot 20cm
SP 4.5”-11cm
Observed isolated soft slabs small and self arresting at about 7,800’ on N to NE aspects. 

ST N
CT 10 @44 Q2
ECTN 11 @ 45

This slope has avalanched earlier, probably during the rain in snow event March 9-11. Leaving an ice layer at ground of about 2.5cm. The profile above was on top of that layer and all recent snow/ windrifted snow. Other areas had snow depths of 35cm to 90cm

3 N gullies were observed to have avalanched most likely wet slides during the March 9-11 rain cycle. Sizes were from D2 to D3. 

Soft slabs that were non reactive and loose snow was observed. Very small sloughs were triggered on downhill. Small slab releases were only observed in the skin track and on hand pits in isolated areas. 

After sundown on the exit there was clear skies and very cold temperatures. We observed surface hoar developing in open in sheltered areas. 

Publish this observation
Yes I would like this observation Published

Pit Profile

Toe of old avalanche from rain event march 11