December 8, 2015

    Sy Sz 2 avalanche-2 M crown avg 1.5 M- 15 cm stepping to 40 cm HST then down to 15-11-18
    MFcr/FCsf interface.

    Moon and likely Venus at first light Monday morning, December 7, 2015.

    Some breaks in the morning but a mostly cloudy day.

    Moist marine layer did move in during the afternoon.

Weather Observations for December 8, 2015: taken at 06:00 Hours.

2240 meters       -2 Winds were 80-120 KPH SSE        --Horstman Hut Station
2180 meters       -3, Winds were 55-80 KPH SSE         --Whistler Peak
1860 meters       -2, Winds were 30-60 KPH ESE         --Rendevous
1835 meters       -1, Winds were 30-60 KPH ESE         --Roundhouse
1650 meters        0, 16 cm of new, 16 cm in 24 Hrs, 140 cm Base, Relative Humidity 100%  --Pig Alley
1550 meters       -2, 13 cm of new, 104 cm Base                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            c                                                                                                                                                                                                 --Catskinner 

  660 meters      +2, Valley Temp, Max Temp Yesterday was +5.1. 1.0 mm of precip yesterday.

Size 1-2 avalanches during control work yesterday. Xe (explosives) Xl ( avalauncher), Sc (ski cut)
and Sy (avalanche occurring in sympathy with one released by explosives).


For the forecast, a strong warm front associated with a moist subtropical air mass will bring rain to the area today with a 2000 + meter freezing level.  As the day progress we will see less precipitation and the FL lowering to 1300 meters by the evening as the atmospheric river moves to our Southern neighbours. We will feel the brunt of the front in the morning, 20-30 mm expected with 100 KPH + winds in a Westerly flow.. Wednesday will see cooler temperatures and light snowfall close to the valley floor by the evening. A series of cool weather systems with some unsettled conditions will be with us through the weekend. Guesstimates: 30-40 cm above 1800 meters by Wednesday morning, 20-25 at 1650. 6-8 cm by Thursday morning.

    Atmospheric river hitting the BC Coast. FL could go up to 2400 meters.

    Intense plume of precipitation.

    Huge warm front with a trailing cold front in a Westerly flow. Hope the cold front arrives quickly.

    A bit of a soaker!!

    Wednesday is looking decent, FL will fluctuate from 1300 m in the am to 800 m by the evening.



Articles:

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Avalanche Rescue needs a revolutionary: Manuel Genswein

Ski Instructors receive vital avalanche training: France

    Monday morning 10:15.

    Image from yesterday shows the atmospheric river flowing our way.

    The really Big View!

    Good turns to be had Monday morning.

   Just a trace of snow from 06:00 to 14:30 hours on Monday.

    Shot placement on Regulator at Top left of frame released this avalanche on High Test above..

    Multiple cloud layers Monday afternoon.