14 Dec 2016

DECEMBER 14, 2016

    AVALANCHE ACTIVITY:

    New point release on Tuesday.

    Cornice control on WB yesterday produced Sz 1-3 debris.

    Flute Main cornice control. Car sized debris.


    YESTERDAY:

    Just before sunrise Tuesday December 13, 2016.

    Lady's First. Evidence of very soft slabs Sz 1.

    Alpenglow Tuesday evening--Big exposure to get where?!!

    Sunset Tuesday evening.


OBSERVATIONS:

Weather Observations for December 14, 2016,: taken at 06:00 Hours.

2240 meters   -10, Winds were  5-15 KPH SW  --Horstman Hut 
2180 meters   -12, Winds were  5-10 KPH ENE--Whistler Peak
1860 meters   -11, Winds were    0-5 KPH ESE --Rendevous
1835 meters   -12, Winds were  0-10 KPH SW  --Roundhouse
1650 meters   -13, 0 cm of new snow, 0 cm in 24 hrs, 163 cm Base, RH 70%  --Pig Alley
1550 meters   -13, 0 cm of new snow, 0 cm in 24 hrs, 116 cm Base, RH 71%  --Catskinner 
  660 meters   -15, Valley Temp, Max Temp Yesterday was -9.7, 0.0 mm of Precip recorded yest

We have an inversion this morning. The alpine will be the place to be. Snow conditions are excellent.


    As of 06:45 this am we have clear skies and unlimited visibility.




FORECAST:

High pressure will continue to bring dry cold weather into Saturday. Saturday evening will bring a shift in the pattern with some cloud development for Sunday with slightly warmer temperatures. A weak front is expected to move onshore by Monday in a Westerly flow with seasonable temperatures. Enjoy the weather and keep warm!!


    Lots of moisture too the South.


    Clear and sunny for Today.

    Thursday into Friday.

    Clouds and a weak front arriving Sunday.

    High pressure until Saturday.



ARTICLES:

Idaho Man victim in Montana's First avalanche death: ABC News

Avalanche investigation of Henderson Mtn. Fatality: GNFAC

Weekend full of Avalanches: Wyoming

Details behind Fatal Avalanche on Mount Rose: California

Snowmobilers survive an avalanche at Rabbit Ears Pass: Colorado

Two people pulled from an avalanche in Russia---Survive: Georgia


    OBSERVATIONS:

    Jeff Van Dreil Image

Hi Wango,

Headed up Rohr ridge under clear skies today. Below treeline it is still 'heads up' travel with many hidden hazards but has become more manageable since last week. 

Cold temperatures prevailed but we kept warm in the sun and the inverted temperatures as we skinned higher. The sun had enough punch to initiate isolated tree bombs, snowballing and loose sluffs out of very steep solar terrain. Ridgetop winds remained light out of the north and -11 at 2100m. 

Dug a pit at 1880m on a SSW aspect, snowpack was 140cm. 1-2mm surface hoar growing on all aspects. Surface hoar 2-4mm is down 36cm producing sudden planar results. Below this, a well consolidated snowpack. The crust is down 100cm with no results. 

Isolated areas on N aspects are showing evidence of past wind effect with soft slab and hard slab 20-30cm beginning to facet.


Enjoy the great skiing, Jeff!

    Jeff Van Dreil Image


    Thats a long traversse!!


    Still lots of land mines out there!!


    Mount Currie Days end.

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