1 Dec 2018

December 1, 2018


    Yesterday:

    Overcast Friday morning, snow line to the valley.

     Friday morning.

    Lots of backcountry enthusiasts!

    One of the brief breaks to the blue!

    Moist air mass in the valley.

    Days end.


Weather Observations for December 1, 2018  taken at 06:00 Hours.

2240 meters         -8, Winds were 10-20 KPH E--Horstman Hut
2180 meters         -7, Winds were   0-10 KPH E--Whistler Peak
1860 meters         -7, Winds were   5-10 KPH N --Rendevous
1835 meters         -6, Winds were   5-10 KPH E--Round House
1650 meters         -5, 2 cm of new, 4 cm in 24 hrs, Base 68 cm--Pig Alley
1565 meters         -5, trace of new, trace in 24 hrs, Base 34 cm--Catskinner
  660 meters          0, Valley Temp, Max temp Yesterday was +1.9, 3.1 mm of precip recorded yest

    As of 07:00 hrs this am we have broken cloud and unlimited visibility.


Forecast:

Ridge of high pressure begins to grow with some lingering cloud from the low to our South. Sunnier skies this afternoon with a Northerly flow aloft. The freezing level will drop down to surface tonight. May see some cloud move back into the area tonight into early Sunday morning but certainly looking at cold sunny weather into next Friday. Next storm will be here hopefully next Saturday/Sunday.
Guesstimates: No snow until next weekend.


    GOES IR image from this am.


    Low moving South, High moving North, Arctic air infiltrating the coast.





    Fronts along the coast.

    Colder air for Sunday.






    High pressure over much of B.C.

    Avalanche Activity:

    No new local avalanche activity to report.



    Information & Observations:

    Fracture line on Blackcomb Glacier, natural during Monday's storm.                     Joe Hertz Image

                    Fracture line profile of the avalanche in Blackcomb Glacier.

              Bottom of Husume, debris from natural avalanche on Monday. Tony Sittlinger Pic


    Big picture yesterday afternoon.


    Convective cells on Friday.

    34 cm base at the Catskinner weather plot. 1 cm of new during the morning.



Articles:

Update on the avalanche death on Mount Cook: New Zealand

El Nino teases as Southwest US remains in drought: Climate Prediction Center

Avalanche Formation: Swiss Avalanche Center

Avalanche learning coming to Valemount: The Goat

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