7 Dec 2019

December 7, 2019

    YESTERDAY:

    Friday December 6, 2019. 11:30 Hrs. + 1 Deg C with a 15-30 SE wind. Squall moving through.

    First ride up Friday morning.

    Multiple cloud layers Friday. Looks and was warm!!!

    Whistler Peak in some cloud.


    Friday afternoon.



Weather Observations for December 7, 2019 taken at 06:00 Hours.

2240 meters      -3, Winds were 25-35 KPH SE--Horstman Hut
2180 meters      -3, Winds were 25-30 KPH SE--Whistler Peak
1860 meters      -1, Winds were 10-20 KPH SE --Rendevous 
1835 meters      -1, Winds were 10-25 KPH SE--Round House
1650 meters       0, 1 cm in 12 Hrs, 1 cm in 24 Hrs, Base 38 cm --Pig Alley
1560 meters .     0, 0 ? cm in 12 Hrs, 0 cm in 24 Hrs, Base   9 cm--Catskinner
  660 meters       0, Valley Temp, Max temp Yesterday was +0.3, 9.5 mm of precip yesterday.

4.9 mm recorded at 1650 meters. Will update amounts as soon as possible.

    As of 07:00 Hrs this am we have overcast skies and unlimited visibility.


FORECAST:

A weak cold front is slowly pushing through with periods of intermittent light precipitation in a Southwesterly flow aloft. The freezing level is hovering in the 1700 meter range and should slowly drop back down to around 1200 meters tonight. We can expect cloudy skies for today with a ridge building for Sunday. High will bring mostly sunny skies for Sunday into Monday. A weak front is expected sometime Tuesday but timing and strength are different depending on the model.
Guesstimates: trace-1 cm by Sunday morning.


    GOES IR Image this am.


     Weak trough will slowly exit with an upper level ridge building into the area by Sunday.





    Fronts along the coast.


    High strengthens Sunday with some cold air spilling into our zone from the Arctic Ridge.





        Upper level ridge for Monday with warmish temperatures.




           AVALANCHE ACTIVITY:

           Recent avalanche near Carson Pass, Calif. Click> Observations .                 ASI Image


    INFORMATION AND OBSERVATIONS:

    Snowballing Friday morning.

    Moist snow Friday.

    Top of Jerseycream Chair

    There is limited terrain and lots of people, ski/board in control!!



From Avalanche Canada MIN Reports:

Activity, Mt St Piran: Dec 5, 2019

Local Snowpack observations: Dec 6, 2019


VIDEOS:

Tahoe Backcountry Avalanche: Josh Daiek

Avalanche-The Mindset: Freeride.com

Avalanche control results: Utah



ARTICLES:

Concern over avalanches: Revelstoke

Avalanche in Grand Targhee backcountry, carries skier- runs full path: Jackson Hole

What is the risk in the French Alps this week: Avalanche Report

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