Ad
The National Forest Service Logo
icon-add Observation
Forecasts
Logan Ogden Salt Lake Provo Uintas Skyline Moab Abajos Weather Archives How to read the forecast
Observations & Avalanches
Submit Observation Observations Explorer All Observations Avalanches Fatalities Weather Place Names Map Archives
Education
Avalanche Class List UAC Class List Online Classes Resources and Tutorials Avalanche Awareness Develop Skills
Events
Store
About
Contact Who we are Core Values Staff Board of Directors Past Forecasters Sponsors Annual Reports Sign In
Blog
icon-add Observation
Donate / Join

Observation: Grizzly Gulch

Observation Date
12/15/2020
Observer Name
CBrown
Region
Salt Lake » Little Cottonwood Canyon » Grizzly Gulch
Location Name or Route
LCC, Grizzly Gulch
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Direction
West
Wind Speed
Light
Weather Comments
On and off waves of light snow showers, short sun breaks. Cold temps, very light winds. Beautiful day in the mountains.
Snow Characteristics
New Snow Depth
4"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
Very light density fluff continues to fall... Appeared that the new snow was only about 4".
Red Flags
Red Flags
Poor Snowpack Structure
Red Flags Comments
Did not observe any new avalanches, or cracking/collapsing, probably due to limited travel today. Dug a pit at 9,500' NW aspect, HS 95-100cm, observed poor structure and full propagation down 40cm below the Friday/Sat storm, buried 20201211 FCsf, ECTP6, CTM12SP, just barely a 4f slab above the FCsf. I am happy to see small grain FC in our snowpack, >1.5-2mm. Gives me hope that we could heal this problem with the right weather patterns.
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
Found enough of a slab even in protected terrain @ 9,500' NW. ECTP6 down 40cm in HS 100cm snowpack.
Avalanche Problem #2
Problem
New Snow
Trend
Same
Problem #2 Comments
Steep terrain will produce lose dry sluffing.
Today's Observed Danger Rating
None
Tomorrows Estimated Danger Rating
None
Coordinates