Sardine Gulch- Loose Wet

Location Name: 
Sardine Gulch- Loose Wet
Region: 
BWRA
Date and time of avalanche (best estimate if unknown): 
Fri, 04/27/2018 - 14:22
Location Map: 


Red Flags: 
Recent avalanche activity
Rapid warming
Obvious avalanche path

Observation made by: Avalanche Specialist
Avalanche Observations
Avalanche Type: 
Wet
Loose/Point-Release
Slope: 
49degrees
Trigger type: 
Natural
Crown Height: 
Less than 1 ft
Aspect: 
East
Weak Layer: 
Old Snow
Avalanche Width: 
40ft.
Terrain: 
Above Treeline
Elevation: 
11 000ft.
Bed Surface: 
Old Snow
Avalanche Length: 
600ft.
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0
Did the avalanche hit a building, vehicle, or structure?: 
No
More detailed information about the avalanche: 

Rapid warming from the sun is heating up rocks & the surrounding snow causing Loose Wet avalanches in the afternoon hours. Photo #1 shows a steep slope that has evidence of this type of avalanche activity. This point-release triggered an accretion of snow that gained width as well as length while it descended. Photo #2 is of a stress mark on the snow due to creep. Creep is the slow, glacial-like, movement of the entire snowpack over the ground surface. Photo #3 is of our Beacon Practice Area at the Leavitt Rd & Hwy 108 junction.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Moderate
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
West
Accumulation rate: 
None
More detailed information about the weather: 

A cold windy morning warmed up to sunny & windy afternoon.