Observation: Whitney Basin

Observation Date
02/18/2017
Observer Name
Ted Scroggin

Region:

Location Name or Route
Whitney Basin
Weather
Sky
Obscured
Precipitation
Light Snowfall
Wind Direction
South
Wind Speed
Moderate
Weather Comments
Just a trace of snow at the trailhead and around 5~6" in the upper reaches of Whitney Basin. Some brief periods of filtered sun today and gusty south winds all day on the ridge lines moving lots of snow around.
Snow Characteristics
New Snow Depth
6"
New Snow Density
Medium
Snow Surface Conditions
Powder
Wind Crust
Snow Characteristics Comments
A nice little re~set with new snow today, with about 5~6" around the Whitney Area. It was some good medium density snow to fill in some old tracks and the riding and turning was quite good on sheltered north facing slopes.
Red Flags
Red Flags
Wind Loading
Cracking
Red Flags Comments
Gusty south winds were moving lots of snow around today creating fresh and quite sensitive wind drifts on the north side of the compass. Around mid~morning these were sensitive and not overly deep, but by mid afternoon these were getting a fair bit deeper and stiff. It was great cornice building weather today and some of these fresh cornices and drifts were breaking naturally and entraining the new snow as they hit the slope.
Avalanche Problem #1
Type
Wind Slab
Trend
Increasing Danger
Problem #1 Comments
With more snow and wind forecasted, todays wind drifts should get a little deeper and more connected tomorrow.
Comments
Sluffing of the new snow and sensitive wind drifts were the main hazard today. Some of these dry sluffs were picking up speed as they moved down hill with a small dust cloud, but not overly deep.
Winter like on the ridge line with gusty south winds blowing lots of snow around. But nice creamy snow was found in sheltered terrain.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Snow Profile Coordinates