15 Dec 2017

December 15, 2017


    No new avalanche activity locally.


    Nice sky before sunrise Thursday morning. Sunrise was officially at 08:04 Hrs.

    Scattered cloud and valley cloud in the am.

    Valley cloud dissipated.

    Great light yesterday. Ice layer looks ominous.

    The sun is so low the light is always changing.

    Just before sunset. Yesterday it was at 16:10 Hrs.

Weather Observations for December 15, 2017 taken at 06:00 Hours.

2180 meters    -4, Winds were 35-40 KPH SSW--Whistler Peak
1835 meters    -2, Winds were 15-30 KPH SSW--Roundhouse
1660 meters     0, 2 cm of new, 2 cm in 24 hrs  Base 136 cm --Pig Alley
  660 meters   +2, Valley Temp, Max Temp Yesterday was +2.1, 0.0 mm of precip recorded yest

    GOES IR image for this am.

    Cooler temperatures and the flow will slowly shift to Northwesterly.


A very weak cold front will pass through today in a Southwest flow aloft. We can expect intermittent flurries and the FL will slowly lower from 1700 meters down to surface by this evening. Cooler temperatures tonight as the flow switches to Northwesterly, with breaks tonight into early Saturday morning. Flurries again for Saturday with mostly overcast skies. A weak warm front arrives Saturday night into Sunday with the Fl rising to 1400 meters and light snowfall expected. Unsettled weather is forecasted for Monday with a low pushing onshore for the evening with light snow and cooler temperatures. We might get a decent amount of snow on Tuesday, more on that as we get closer.
Guesstimates: Trace-2 cm by Saturday morning, 1-3 cm by Sunday morning, 5-10 cm by Monday morning, 8-12 cm by Tuesday morning.


    Awesome sky yesterday.

    Clouds increased as the day progressed.



Fast moving avalanche: France

More avalanche footage from France: Les Arcs

Ski Tourer outruns avalanche at Mt Hood: 12-10-2017


B.C.'s remote avalanche-control system ready for the avalanche season: BCTV News

What do long-term weather patterns mean for Avalanche Risk: Pique

3 Tips to keep you alive in Avalanche terrain: Backcountry Skiing Blog

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