Red Cone

SNOWPACK OBSERVATION
Submission Info
Forecaster
Thursday, April 26, 2018 - 12:00pm
Red Flags: 
Rapid warming
37° 35' 44.88" N, 119° 1' 27.84" W
Snowpit Observations
More detailed information about the snowpack: 

Observed early and rapid warming on all aspects and elevations of Red Cone between 9am and 1230pm. Many new and recent rollers and D1 loose wet point releases observed originating below rock band on the Mammoth Crest and above Hollywood Bowl. Test slopes on E aspects at about 9500' at 1030am had small rollerballs and loose wet sluffs. Test slopes on N aspects at the same elevation and time had knee deep ski pen after jumping, but no results. The snowpack below about 10,000' is generally isothermal and moist to wet. Probing showing the snowpack to be generally consolidating with mostly thick hard layers. In several locations I could feel a much softer layer down about 60cm that I expect to be the remains of one of the facet layers that developed in Feb. In open areas the snow was generally supportable with boot pen being 5 to 10cm with boot pen up to 30cm in punchy snow on treed slopes. Skiing on W aspects above 10,000' at noon was good corn: about 10cm wet snow on supportable melt-freeze. The trees down to Horseshoe were punchier and had boot-top ski penetration.

Snowpack photos: 
Weather Observations
Blowing Snow: 
No
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Calm
Precipitation: 
None
Air temperature trend: 
Warming
Wind Direction: 
East
Accumulation rate: 
None
More detailed information about the weather: 

Mostly clear skies, calm with occasional light winds from the E. Intense solar radiation. Early and rapid warming after poor overnight refreeze: Overnight Low at Mammoth Pass = 37 deg F. Increasing cloud cover typical of afternoon convection that comes with the possibility of thunder storms.

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