Mammoth Area - Punta Bardini - snow conditions

SNOWPACK OBSERVATION
Punta Bardini
Submission Info
Forecaster
Sunday, February 17, 2019 - 11:15am
Red Flags: 
37° 36' 36.0072" N, 118° 57' 40.2552" W
Snowpit Observations
More detailed information about the snowpack: 

Very good surface conditions for powder skiing in the sheltered northerly trees today in the Sherwins. NO signs of instability encountered. Dug a snowpit to check out rain crust from Feb 14/15 event. Found a 20cm thick rain layer, knife hard, 50cm below the surface. Snow on top of rain layer was very well bonded and resistent to any shovel shear/hand shear force applied to it. Nothing failed upon the rain layer with compression or extended column tests. Moderate compression test scores on hardness change (F-4F) at 25cm down, At 25cm there was a heavier deposit of Graupel. Snowpack quite solid here, snow residing underneath rain layer was 1F and consolidated, will have to track if this changes. Rain layer was shining in mid afternoon sun in wind shorn areas up on the Sherwins, this will present some sliding hazards if a skier fall is taken. Appears it rained as high as 10,200 or so, perhaps a bit higher or lower in elevation location dependent. Good settlement rings and cones throughout the forest. Northwest aspects drifted and stripped down to rain crust within tree'd terrain. Fairly crusty and icy out on the flats from Old Mammoth road out to the Sherwins ridge.

100cm deep snowpit dug @ 9400ft, 24deg NNE aspect, 23deg slope

HS:270cm

HNS: 45cm settled

Snow Surface=0    (0-25cm F) - (25-50cm 4F) - (50-70cm K Rain Layer/Crust) - (70-100cm 1F)

CT11 RP @25cm  ECTN12 @25cm (Hardness change, graupel @ 25cm)

Ski Pen: 15cm    Boot Pen: 50cm

Snowpack photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Calm
Precipitation: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 

What started out as a grey overcast day turned into a glorious sun drenched afternoon, yet it stayed crisp and cold with below freezing temperatures. Very light flurries of snow surrounded us in the morning, but gradually tapered off in the Punta area. Winds were calm to very light all day.

16F  at 11:15am 9400ft

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