12 Jan 2020

January 12, 2020

    YESTERDAY:

    Sunshine across the valley Saturday morning.

    Broken cloud in the morning.

    Cloud layer at mid mountain.

   Tricky light in the alpine.

    Some sunny breaks around noon.

    Saturday January 11, 2020. 13:30 Hours. -6.4 Deg C with a 25-40 KPH SW wind.

    Big picture same time frame as the above image.

    16:00 Hrs Saturday afternoon. 0 Deg C at 660 meters.

    Just before dusk on Saturday, hope the low delivers the goods!!!


Weather Observations for January 12, 2020 taken at 06:00 Hours.

2240 meters    -10, Winds were   70-85 KPH SE--Horstman Hut
2180 meters      -9, Winds were 75-100 KPH S--Whistler Peak
1860 meters      -8, Winds were   25-40 KPH SE --Rendevous 
1835 meters      -8, Winds were   15-35 KPH SE--Round House
1650 meters      -6, 11 cm in 12 Hrs, 11 cm in 24 Hrs, Base 196 cm --Pig Alley
1560 meters .    -7, 11 cm in 12 Hrs, 11 cm in 24 Hrs, Base 130 cm--Catskinner
  660 meters      -3, Valley Temp, Max temp Yesterday was 0, 1.8 mm of precip yesterday.


   As of 07:00 Hrs this am we have overcast skies, variable visibility and it is snowing.



FORECAST:

An upper trough and associated low will bring light snowfall into the evening in a Northerly flow aloft. By the afternoon we will have cloudy skies, flurries, and the freezing level dropping well below surface. A broad upper trough and arctic front will bring unsettled weather for Monday with frigid temperatures. A mix of sun and cloud with a dry air mass will continue into Tuesday and Wednesday.
A front and associated  low will move into the area Thursday with another good winter storm possible by Saturday. Guesstimates: 8-12 cm by Monday morning, 0-trace by Tuesday morning, 0 cm by Wednesday morning.


    GOES IR image from this am.


    Upper trough and associated low will bring light snow into the afternoon today.






    Fronts along the coast.

    Arctic front and cold temperatures for Monday.





    More of the same Tuesday.



    AVALANCHE ACTIVITY:

    An avalanche buried a skier on Lake Louise's, Mount Hector. Article below.           AV CAN Image

    No shots thrown on Blackcomb Saturday.

    Avalanche control on Whistler Saturday produced Sz 1-1.5 Xh, Xe, Xl, & Sc. 1-Sz 2.



     INFORMATION & OBSERVATIONS:

    For backcountry access on both Mountains call 604-905-2324.

    Nice dry snow in the alpine.

    Melt freeze in the valley.

    Overcast at mid station Blackcomb Gondola Saturday morning.
     
    Still some nice dry snow in the valley. High on Saturday was

    Extremely Canadian AST 2 course with Mith Sulkers. Good information below:

Day #2 with @extremelycanadian AST2 private course in the Disease/Decker zone yesterday. New snow depths ranged from 10-14cm in the 2150-1760m zone with a highly variable total snow depth from 170-300+cm depending on asp and elev.
At all levels, probing confirmed the existence of the 191123 crust/facet combo. Top 70-90cm right side up, with strong bridging occurring and no significant results in stability tests at 2110m on a WSW asp. Both 191216 and 191227 were identified but returned resistant planar results in the hard category down 70 and 100cm.
For the future, a thin (4cm) of 4F- windpress lay just under the new snow and released easily in shovel tilt test. Some windslab noted to 40cm deep near features that accelerate the wind, but very little cracking and no whumpfing observed.
48hr plus avalanche to sz2.5 observed on frequent performer south of Flute Cruiser, east asp of Flute, on obv convexity.
We skied slopes below 30 degrees, and saw other parties riding to 35 degrees with only sluffing. There was one 48 hr+ old natural slab release north asp of lower Disease obs.
Riding conditions were excellent.




From Avalanche Canada MIN Reports:

Mt Hector Avalanche: Jan 10, 2020

Strachan: Jan 11, 2020



VIDEOS:

That made me think twice: Avalanche Guys

Avalanche Rescue Silver Mountain: Two Bear Mountain Rescue


ARTICLES:

Skier buried in avalanche on Mount Hector: Alberta

Skier buried in avalanche airlifted to Calgary in Critical Condition: Calgary Herald

How do ski resorts try to prevent avalanches-It's complicated: Spokesman-Review

Arctic Outflow warning for: Whistler

Understanding and managing depth hoar: UAC

Rotten Snow: WhyFiles

No comments:

Post a comment