Observation: White Pine 2/19/2012

Observer Name:

Hardesty

Observation Date:

02/19/2012

Region:

Salt Lake
Little Cottonwood Canyon
White Pine

Weather

Sky:

Overcast

Precipitation:

Light Snowfall

Weather Comments:

2-4" of low density snow. No wind observed in White Pine. Temps cool.

Red Flags

Red Flag Comments:

Expected more red flags today but the weather forecast never panned out. It happens.

Primary Concern

Primary Concern:

Deep Slabs

Probability:

Low

Aspect:

North

Northeast

East

Southeast

West

Northwest

Elevation:

High

Mid

Trend:

Same

Primary Concern Comments:

One out of many ECTS showed full propagation on a northeast facing slope in upper White Pine. Same for PSTs. Only one of many showed full propagation (40/125) down 125cms.

Secondary Concern

Secondary Concern:

Persistent Slabs

Probability:

Low

Aspect:

North

Northeast

East

Southeast

Southwest

West

Northwest

Elevation:

High

Mid

Trend:

Less Dangerous

Secondary Concern Comments:

Two very small pockets triggered on steep rollovers at this interface - on northwest and southwest facing slopes - each about 8" deep and 10' wide. Would have (with today's expected snow numbers) to have potentially re-activated the weak surface snow prior to last Sunday's storm.

Saturday's snow surface found to be quite weak still - RR on a variety of sunny aspects...SH noted in upper LCC yesterday but not found in White Pine today

Other concerns - the sluffing in the low density snow....tomorrow's sun should assist with additional sluffing -

and any wind will easily drift the new snow.

snow_profile_location:

Comments - Photos - Videos (group 1)

Video 1: