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Observation: South Tony Grove

Observation Date
1/25/2013
Observer Name
Toby Weed
Region
Logan
Location Name or Route
South Tony Grove
Weather
Sky
Overcast
Precipitation
Light Rain
Wind Direction
West
Wind Speed
Light
Weather Comments
Light rain at mid elevations in the afternoon.... Mild temperatures with little wind.
Snow Characteristics
New Snow Depth
7"
New Snow Density
High
Snow Surface Conditions
Powder
Dense Loose
Damp
Snow Characteristics Comments
Could still feel the 1-8 rime crust under new snow in this area 6" to 10" deep
Red Flags
Red Flags
Poor Snowpack Structure
Red Flags Comments
Very weak fist-hard facets under 1-8 rime crust intact and only waiting for enough load to break the crust in this area..
Avalanche Problem #1
Problem
New Snow
Trend
Increasing Danger
Problem #1 Comments

anywhere a significant slab has built on the poor snow structure is suspect. Haven't seen many slopes that fit the bill yet...

Avalanche Problem #2
Problem
Wet Snow
Problem #2 Comments

Wet avalanches a problem today on steep low elevation slopes..

Comments

Here is a picture of the all to common snow situation in the Tony Grove Area.. The problem is the weak snow preserved beneath the obvious 1-8 rime crust....

Surface foot of snow at around 8300' on a north facing slope..