12 Dec 2019

December 12, 2019


    Wednesday December 11, 2019. 11:30 Hrs. -3.1 Deg C with a 15-30 KPH wind.

    09:00 Hrs Wednesday morning.

    There were breaks in the cloud in the am.

    Light precipitation by 15:30 Hrs Wednesday.

    Big picture Wednesday afternoon.

Weather Observations for December 12, 2019 taken at 06:00 Hours.

2240 meters      -6, Winds were 75-100 KPH SE--Horstman Hut
2180 meters      -6, Winds were  50-85 KPH S--Whistler Peak
1860 meters      -4, Winds were  25-50 KPH SE --Rendevous 
1835 meters      -3, Winds were  15-45 KPH SE--Round House
1650 meters      -2, 11 cm in 12 Hrs, 11 cm in 24 Hrs, Base 50 cm --Pig Alley
1560 meters .    -2,  7 cm in 12 Hrs,   7 cm in 24 Hrs, Base 17 cm--Catskinner
  660 meters       0, Valley Temp, Max temp Yesterday was +2.2, 1.4 mm of precip yesterday.

    As of 07:30 Hrs this am we have broken cloud and unlimited visibility.


A weakening front will pass through today in a Westerly flow aloft. The freezing level will likely hover at around 800-1200 meters. Depending on the model we should see periods of light snow for today. Disappointing with the snow accumulation, but some is better than none!! May see some sunny breaks, but unlikely. Mostly cloudy Friday with a few sunny breaks. Ridge builds for Saturday with colder temperatures from the Arctic High and we will be in a Northwesterly flow aloft. A mix of sun and cloud into Sunday. Guesstimates: 4-6 cm? by Friday morning,  good chance we will see less, trace-1 cm by Saturday morning.

    GOES IR image from this am.

    Weak front for today, some light snow.

    Fronts along the coast.

     Cool upper level trough for Friday, unsettled but dry. Some flurries?  Upper ridge begins to build.

    Arctic ridge will begin to bring colder temperatures for Saturday. Mix of sun and cloud.


    Friends dig out snowboarder after an avalanche on Donner Pass. Article below.              Net Pic

    No new avalanche activity to report locally.


    High in the valley Wednesday was +2.2 Deg C.

    Wednesday just before noon, front slowly approaching. -6.8 Deg C at 2240 meters.

    Looking like a more active cycle next week!! Fingers crossed!! Models are very inconsistent.

    Sliding on Lower Olympic Run.

    Bring it on!!!

From Avalanche Canada MIN Reports: 

Observations-Piccolo Meadows: Dec 11, 2019

Local Observations: Dec 11, 2019


Avalanche Control: Kicking Horse Resort


Friends rescue a snowboarder buried in an avalanche on Donner Pass: California

How an Anchorage man rescued a hiker out of Flattop avalanche: Alaska

Daily avalanche forecasts for Mount Washington to stop: New Hampshire

28 avalanches reported in Colorado in the past 24 hrs: CAIC

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