7 Dec 2018

December 7, 2018

    YESTERDAY:

    Thursday morning upload.

    For what we have as a base its a great time to be going left and right..

    Clear in the morning.

    Mount Garibaldi has some serious crevasses, some cloud in the afternoon.

    Some cloud development to the South later in the afternoon.

    And then there were three.


Weather Observations for December 7, 2018  taken at 06:00 Hours.

2240 meters       -2, Winds were 15-20 KPH SE--Horstman Hut
2180 meters       -2, Winds were 10-20 KPH S--Whistler Peak
1860 meters       -2, Winds were   5-10 KPH E--Rendevous
1835 meters       -2, Winds were   5-10 KPH SE--Round House
1650 meters       -6, 0 cm of new, 0 cm in 24 hrs, Base 61 cm--Pig Alley
1565 meters       -4, 0 cm of new, 0 cm in 24 hrs, Base 29 cm--Catskinner
  660 meters       -9, Valley Temp, Max temp Yesterday was -2.0, 0.0 mm of precip recorded yest

   As of 07:00 hrs this am we have clear skies, unlimited visibility and there is an inversion.
   The high yesterday at 2180 meters was +5 Deg C at 15:15 Hrs, high in the valley yesterday was -2.


FORECAST:

High pressure will begin to migrate East today in a Northwesterly flow aloft shifting today to a Southwesterly flow aloft. The weakening cold front will bring some cloud to the area tonight and some light snow showers to the alpine, fairly dry so we may see some flurries tonight but more likely Saturday afternoon. The FL could go as high as 1500 meters but may hover in the 1300 meter range.  A stronger front will arrive for Sunday with the FL possibly reaching 1800 meters and falling to 1000 fairly quickly. Hoping for the FL to hover around 1500 meters. A series of Pacific fronts will push through next week with breaks in between their passage. Guesstimates: 2-4 cm by Sunday morning, 15-25 cm by Monday morning, trace to 2 by Tuesday morning, 10-20 cm by Wednesday morning.


    GOES IR image from this am, cold front approaching!!



    Freezing level will begin to rise.







    Fronts along the coast.


    Low with a Southwest flow for Saturday..








    Freezing level on the rise!


   Low coming down the coast, surface high to the South.


    AVALANCHE ACTIVITY:

    An avalanche in Armenia has killed a soldier. Read article below.                                             Net Pic

    A few wet loose Sz 1 avalanches reported yesteday in our area. Rainbow Mountain.



    INFORMATION & OBSERVATIONS:


    How are we going to de-rime these cables?


    Whistler backcountry.


   Cornices have grown, always be aware of where you are standing on ridge lines.

    Wind scoured exposed old turns.


    Yes, if your going onto a glacier not a bad idea to have some crevasse rescue gear.


From Avalanche Canada MIN Reports:

Lesser Flute bowl: Dec 6, 2018



From South Coast Touring:

Observations from AST 2 course: Mitch Sulkers



VIDEO FRIDAYS:

How much do we know about snow: Nature of Things

ECT Test in Colorado: Dec 1, 2018

When there is not enough snow: Amazing athelte



ARTICLES:

The science of avalanche forecasting in Whistler: En Route

Armenian soldier has been killed in an avalanche: Syunik Area

Better monitoring of North Rockies on Avalanche Canada Radar: Prince George

Greenland ice sheet melt "off the charts" compared with the past four centuries: Science Daily

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