Obs-Snow Profile: South Tony Grove 1/16/2011

Observer Name:

Toby Weed

Region:

Logan
Logan River
Tony Grove
South Tony Grove

Observation Date:

01/16/2011

Weather

Sky:

Obscured

Precipitation:

Heavy Snowfall

Wind Direction:

West

Wind Speed:

Strong

Weather Comments:

Full on weather. Periods of sleet and heavy snowfall at 8500' with strong west winds. Heavy rain below around 7500'. Poor visibility......

Snow Characteristics

New Snow Depth:

New Snow Density:

High

Snow Surface Conditions:

Dense Loose

Damp

Snow Characteristic Comments:

Rimed needles and graupel snow, noisy granular sleet crystals on surface. Very heavy new snow

Red Flags

Heavy Snowfall

Wind Loading

Collapsing

Red Flag Comments:

Buried persistent weak layer underlying a rapidly building slab......

Primary Concern

Primary Concern:

Persistent Slabs

Probability:

Considerable

Aspect:

North

Northeast

East

Southeast

Elevation:

High

Mid

Trend:

More Dangerous

Secondary Concern

Secondary Concern:

Wet Avalanches

Probability:

Considerable

Aspect:

North

Northeast

East

Southeast

South

Southwest

West

Northwest

Elevation:

Mid

Low

Trend:

Same

Secondary Concern Comments:

Rain up to around 7500', with very wet and soft snow to the ground down low.....

Elevation:

8200'

Aspect:

North

Slope Angle:

snow_profile_location:

United States

41° 53' 21.2784" N, 111° 38' 29.6304" W

Comments - Photos - Videos (group 1)

I found easy and clean shears and compression failures on the surface hoar layer buried 1-8-2011, now around 16" under the surface.... Test results; CTE1,3,Q1.......ECTP

Video 1:

Observed Danger Rating:

Considerable

Forecast Danger Rating:

High

Snow Profile Location

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