Observation: Ogden Mountains 1/19/2012

Observer Name:

orum/ck/bp

Region:

Ogden
Ogden Mountains

Observation Date:

01/19/2012

Location or Route:

ogden mtns north

Weather

Sky:

Obscured

Precipitation:

Moderate Snowfall

Wind Direction:

North

Wind Speed:

Moderate

Weather Comments:

earlier around 1200 hrs the wind was from the SW then shifted to north.

Snow Characteristics

New Snow Depth:

14"

New Snow Density:

High

Snow Surface Conditions:

Powder

Snow Characteristic Comments:

inverted snow with a new snow instability caused by the temperature change during the storm. Windslab. Overall snow depth 100cm with about 45cm sitting on a thin crust then facets to ground. The house of cards has been tipped.

Red Flags

Recent Avalanches

Heavy Snowfall

Wind Loading

Cracking

Collapsing

Red Flag Comments:

North aspect 30 deg. at 8920' Snow depth 100cm

ECT1Q1 at 55cm 6mm facets and some buried surface hoar up to 1cm.

ECT2Q1 same

CTE1Q1

widespread collapsing , cracking and natural avalanches

Primary Concern

Primary Concern:

Deep Slabs

Probability:

High

Aspect:

North

Northeast

East

Southeast

Northwest

Elevation:

High

Mid

Trend:

Same

Primary Concern Comments:

hard slabs with the persistent weak layer

snow_profile_location:

Comments - Photos - Videos (group 1)

Video 1:

Comments - Photos - Videos (group 2)

looking down at debris pile

Observed Danger Rating:

High

Forecast Danger Rating:

High