Observation Date
2/28/2014
Observer Name
Dave Kelly
Region
Salt Lake » Little Cottonwood Canyon » Grizzly Gulch
Location Name or Route
Grizzly Gulch
Weather
Sky
Broken
Precipitation
Light Snowfall
Wind Direction
Southwest
Wind Speed
Calm
Weather Comments
Winds varied throughout the day. Winds picked up around 1pm from the northwest and then died down again. Overall winds were from the W and SW throughout the day. Sun in the morning and then clouds and light snow in the afternoon.
Snow Characteristics
New Snow Depth
1"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
Slight sun crust noted on snow surface.
Red Flags
Red Flags
Recent Avalanches
Wind Loading
Cracking
Red Flags Comments
We observed 2 small skier triggered slides on more northerly facing terrain. One above the cat track on the way up to the first meadow, and the other directly above the lower pick up. We also observed what appeared to be a skier triggered or cornice drop in Cardiff Bowl and another slide in Toledo Chute after artillery work had been completed. Localized cracking in areas with a wind slab. Wind loading noted on northerly aspects.
Snow Profile
Aspect
North
Elevation
9,600'
Slope Angle
37°
Comments
Some NSF layers noted in the upper pack, but not repeatable results. Most responsive layer with ski cuts was 20cm down about 1-2cm above the new/old snow interface Although not reactive with tests. Layer 20cm off of ground high consequence/low probabilty.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable
Coordinates
