Winter snow on a spring day

Location Name: 
Middle Fork Corridor
Observation date: 
Monday, April 18, 2022 - 15:00

Is this an Avalanche Observation: 
Yes
Observation made by: Public

Location

Tabs

Quick Observation

-What was supposed to be a longer day in the backcountry turned into a quick mission up to middle elevations 5,500 feet 

-Snow was deep and light this morning with up to 10 inches of low density snow

-Travel was not ideal with large entraining sluffs breaking on our uptrack on a 4 inch thick faceted crust 

-We started to notice whompfing as we collapsed faceted crust layers with out body weight at our high point of 5,500 feet on a NW facing slope angled around 30 degrees 

-We saw a myraid of avalnche activity from the past 24 hours at middle to upper elvations from dry point releases (D1-D1.5) to dry slab avalanches (D1.5-D2)

-Touring in a T shirt it was only a matter of time before the wet loose avalanche activity would begin (while we saw no roller ball activity or wet slab activity our ski bases had added a fresh coat of gloppy snow by the time we returned to the car at 1pm) 

Snowpack, Avalanche, Weather Images: 
Travel Details
Activity: 
Skiing
Snowpack Details
Snowpack and Weather Details: 
Hide Terrain
Elevation of observation: 
3500-5000 ft
5000-6500 ft
Aspect(s) of observation: 
W
NW
Red Flags: 
Avalanches from the past 2 days
Shooting cracks
Collapsing / whumpfing noises
More than a foot of new snow or heavy snowfall rates (>1"/hr)
Rapid or prolonged warming
Persistent Weak Layers: 
Facets or Faceted Crust
New Snow in the past 24 hours: 
10.00in.
Sky Cover: 
Mostly Clear (FEW)
Avalanche Details
Avalanche Details: 
Date and Time of Avalanche: 
Monday, April 18, 2022 - 08:15
Number of avalanches: 
20
Avalanche Type: 
Loose Dry/ Sluff
Failure Plane/Weak Layer: 
New/old snow interface
More information or comments about the avalanche: 

Many dry snow avalanches had run in the past 24 hours on a variety of aspects between middle and upper elevations. Larger dry snow avalanches had crowns estimated 50 +yards across 10 inches deep R1-2. 

Hide Trigger
Trigger: 
natural
Hide Terrain
Start Zone Slope Angle: 
35
Aspect: 
Northwest
Starting Elevation: 
near-treeline
Hide Size
Destructive Size: 
D1 Relatively harmless to people.
Relative Size: 
R1 Very Small
Crown Height: 
Less than 1 ft
Avalanche Length (Vertical Run): 
35ft.
Avalanche Width (Average width): 
8ft.
Hide People Involved
Number of people caught: 
0
Avalanche Location: 
Date and Time of Avalanche: 
Monday, April 18, 2022 - 08:15
Number of avalanches: 
10
Avalanche Type: 
Soft Slab
Failure Plane/Weak Layer: 
Old snow
More information or comments about the avalanche: 

Many dry snow avalanches had run in the past 24 hours on a variety of aspects between middle and upper elevations. Larger dry snow avalanches had crowns estimated 50 +yards across 10 inches deep R1-2. 

Hide Trigger
Trigger: 
natural
Hide Terrain
Starting Elevation: 
near-treeline
Hide Size
Destructive Size: 
D1 Relatively harmless to people.
Relative Size: 
R2 Small
Crown Height: 
Less than 1 ft
Avalanche Length (Vertical Run): 
75ft.
Avalanche Width (Average width): 
50ft.
Hide People Involved
Number of people caught: 
0
Avalanche Location: