Observation: Dog Leg 11/21/2011

Observer Name:

Weed

Observation Date:

11/21/2011

Region:

Dog Leg
Providence Canyon
Logan

Weather

Sky:

Overcast

Precipitation:

Moderate Snowfall

Wind Direction:

Southwest

Wind Speed:

Moderate

Weather Comments:

Moist weather with rain and sleet down low and rimed snowfall up high...

Snow Characteristics

New Snow Depth:

New Snow Density:

Medium

Snow Surface Conditions:

Powder

Snow Characteristic Comments:

nice fast settled powder conditions

Red Flags

Red Flag Comments:

Not much in the way of red flags today... some localized collapses up high on a NNW facing slope at around 8900'

Primary Concern

Primary Concern:

Persistent Slabs

Probability:

Moderate

Aspect:

North

Northeast

Northwest

Elevation:

High

Trend:

More Dangerous

Primary Concern Comments:

No October snow observed.... Snow from 11-12-2011 now small facets in basal layer fairly well compressed into terrain features.... Generally shallow snow cover, with less than around 18 inches below around 8500 and still only around 2' up to around 8900'... A sustained high pressure would be bad news for this shallow snowpack. which would quickly turn into weak faceted snow if subjected to a strong temperature gradient now....

Secondary Concern

Secondary Concern:

Wind Slabs

Probability:

Moderate

Aspect:

Northeast

East

Elevation:

High

Trend:

Same

Secondary Concern Comments:

We did not encounter any sensitive wind slabs as we traveled in mostly sheltered terrain today..

snow_profile_location:

Observed Danger Rating:

Moderate

Forecast Danger Rating:

Considerable