15 Dec 2015

December 15, 2015

    Just before sun rise Monday December 14, 2015.

    First light on a snowy Rainbow Mountain.

    No wind Monday afternoon. An awesome day in the mountains.

    A bit of low lying valley cloud.

     Long shadows later in the day.

    Sunset last night.

Weather Observations for December 15, 2015: taken at 06:00 Hours.

2240 meters     -6 Winds were 20-35 KPH S               --Horstman Hut Station
2180 meters     -7, Winds were 35-45 KPH SSW        --Whistler Peak
1860 meters     -6, Winds were 20-25 KPH E              --Rendevous
1835 meters     -4, Winds were 10-30 KPH SSW        --Roundhouse
1650 meters     -5, trace of new, 172 cm Base, Relative Humidity 95%  --Pig Alley
1550 meters     -6, trace of new, 132 cm Base           --Catskinner 
  660 meters     -4, Valley Temp, Max Temp Yesterday was +1.5. No precipitation recorded.

Avalanche Control produced some Sz 1 SSL Xe yesterday.

    As of 07:00 Hours this am we have broken cloud, unlimited visibility and it is snowing lightly.

For the forecast, a very weak disturbance will bring some flurries to the area today with overcast skies and a freezing level that could rise to 800 meters.  (Stratus cloud layer lifting) Wednesday will see a surface high from the Northeast bringing sunny skies to the area with cold temperatures. A low to the Northwest will send a  warm front our way Thursday with cloudy conditions in the morning and snow beginning to fall by the afternoon, intensifying by the evening. The freezing level will rise to around 1000 meters by Thursday night. We can expect snow from Thursday until Sunday evening. Guesstimates: 1-2 cm by Wednesday morning, 10-20 cm by Friday morning. Confidence in the forecast into the weekend is low, stay tuned.

      Low will send some cloud our way today.

    Surface high pressure builds for Wednesday with colder temperatures.

    Low pressure will affect our area Thursday into Sunday.


The Snow Science of the Colorado Avalanche: BSN Denver.com

Artificial Snow 'could make you sick': Switzerland

Arc'teryx Voltair Avalanche Airbag Backpack: Backcountry Skiing Blog

Avalanche Warning still in effect for Central Okanogan Region: KelownaNow

Avalanche kills Nar Telecom's Sales Director: Kyrgyzstan

    Image from yesterday afternoon.

    Disturbance moving down the coast.

    Some lines do not go yet.

    Snow makers are back at it.

    Surface hoar development yesterday.

    Good temperatures for making snow.

    Nice light at days end.

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