27 Nov 2018

November 27, 2018


    Yesterday:

    Moist snow at 1860 meters yesterday, snowline was as low as 1300 meters in the morning.

    Snow quality was rather nice in the morning.

    Dumping at 1835 meters. High of +1 last night.

    Snowing lower than the Chickpea Restaurant. High of +2.3 Deg C at 1650 meters yesterday.

    Moist cloudy day. High in the valley of +1.9. Rainfall 40.4 mm at 660 m, Squamish 83.4 mm.


Weather Observations for November 27, 2018  taken at 06:00 Hours.

2240 meters         -1, Winds were 90-110 KPH SE--Horstman Hut
2180 meters         -2, Winds were   65-90 KPH S--Whistler Peak
1860 meters          0, Winds were   20-50 KPH S--Rendevous
1835 meters          0, Winds were   10-40 KPH SE--Round House
1650 meters        +1, 2 cm of new, 3 cm in 24 hrs, Base 57 cm--Pig Alley
1565 meters        +1, trace of new, trace in 24 hrs, Base 26 cm--Catskinner
  660 meters        +2, Valley Temp, Max temp Yesterday was +1.9, 40.4 mm of precip recorded yest


    As of 07:00 hrs this am we have obscured skies, limited visibility and 2 cm of snow/hr at 1835m ..


Forecast:

The low is pushing through with a Southwesterly flow aloft switching to a cooler Westerly flow later today. Heavy rain early this am will ease to light rain showers but continue into Wednesday morning. The Freezing level is around 1900 meters this am and should gradually drop to 1500 meters by tonight. A cooler flow for Wednesday with unsettled weather by the afternoon and the FL possibly dropping to the valley Wednesday night. Thursday and Friday are looking unsettled with colder temperatures. Guesstimates: 10-20 cm by Wednesday morning. trace-1cm by Thursday morning.


    GOES IR image from this am.

    Warm with fairly strong winds this am.

    Freezing level was at 1900 meters this am, 06:00 Hrs.

    Hopefully temps will drop.


    Fronts in the Pacific.


    Temperatures begin to cool Wednesday..

    Wednesday is looking good after the rain event.


    Cooling off.


    Upper trough with unsettled weather for Thursday.  May be a sunny and colder.



    Information & Observations:

    Fitzsimmons Creek, weir is full.

    Roundhouse yesterday afternoon.

    We have lots of water!!!

    Image from Monday afternnon.

    Big picture on Monday.

    Tuesday morning , looks like it will dry out fairly quickly.



    Avalanche Activity:

    Ski Cut (Sc) Sz 1 wet slab on Hooker Hump. Loose wet to Sz 1 observed yesterday as well.


Articles:

Terminology-Avalanche Safety Basics: Wild Snow

WB Avalanche Advisory: November 27, 2018

The day in the life of a rookie ski patroller: Outside Magazine


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