Observation: Whitney Basin

Observation Date
12/6/2017
Observer Name
Ted Scroggin

Region:

Location Name or Route
Whitney Basin-Double Hill
Weather
Sky
Clear
Wind Direction
North
Wind Speed
Light
Weather Comments
Another morning with below zero temperatures, clear skies and light north winds kept the day fairly cool.
Snow Characteristics
New Snow Depth
12"
New Snow Density
Low
Snow Surface Conditions
Powder
Faceted Loose
Wind Crust
Snow Characteristics Comments
Clear nights have continued to weaken the surface snow, while the recent storm from the weekend has provided mostly low density powder snow. Some minor wind drifts along the high ridge lines.
Red Flags
Red Flags
Wind Loading
Poor Snowpack Structure
Red Flags Comments
Very minor wind drifting from the light north winds along the ridge lines. The snow pack depth has increased, but the overall strength has not. The weakest snow I was finding was in the middle of the snow pack, below the Thanksgiving storm. No alarming stability tests, likely due to lack of weight added to the snow from the recent storm.
Avalanche Problem #1
Type
Persistent Slab
Trend
Same
Problem #1 Comments
A weak and layered snow pack continues to be the conditions I was finding today in the Whitney Basin. Some of the weakest sugary snow was about in the middle of the snow pack. In my stability tests, I was not able to get any column of snow to propagate a fracture.
Comments
1. The safest riding to avoid rocks and stumps is still roads and grassy areas. 2. There have been some riders who have ventured off trail to find some deeper snow free of hazards.
The upper elevations are starting to fill in, but generally conditions are still early season and thin.
Mark digs his hand into some of the weaker snow we found in the Whitney area.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Snow Profile Coordinates