24 Dec 2018

December 24, 2018


    YESTERDAY:

    Monday morning, great conditions with 19 cm of dry light powder.

    Flurries in the morning.

    A few breaks in the afternoon.

    Good turns all day.

    End of the day.

    Sunday afternoon.

    Big picture Sunday PM.


Weather Observations for December 24, 2018  taken at 06:00 Hours.

2240 meters       -8, Winds were 5-10 KPH SSW--Horstman Hut
2180 meters       -6, Winds were   0-5 KPH S--Whistler Peak
1860 meters       -7, Winds were   0-5 KPH E--Rendevous
1835 meters       -7, Winds were   0-5 KPH S--Round House
1650 meters       -6, 1 cm of new, 6 cm in 24 hrs, Base 222 cm--Pig Alley
1565 meters       -5, trace of new, 5 cm in 24 hrs, Base 158 cm--Catskinner
  660 meters        0, Valley Temp, Max temp Yesterday was +1.0, 8.2 mm of precip recorded yest

Will be an awesome day for groomers.

    As of 07:00 hrs this am we have overcast skies and unlimited visibility.


FORECAST:

Unsettled this am as a weak ridge builds in a West/Northwesterly flow aloft. The FL will remain at or just above surface. More breaks as the day progresses. The ridge strengthens for X-mas day with mostly sunny skies and some cloud cover. A weak trough will push through on Wednesday with light precipitation in the am easing to flurries. Another ridge is expected for Thursday. A weak trough for Friday with cloudy skies and some flurries. A more vigorous front will likely arrive on Saturday with light/moderate precipitation. Ridge rebuilds for Sunday with mostly sunny skies in the forecast for early next week. Guesstimates: 4-8 cm by Thursday morning. 4-8 cm by Saturday morning.


    GOES IR image from this am.


    Building ridge with some cooler air from the Northeast.








    Fronts along the coast.


    Sunny day for X-mas.








    Weak trough for Wednesday with the low to the North.


    Weak ridge rebuilds for Thursday.


   AVALANCHE ACTIVITY:



   An avalanche has claimed one Victim in Slovakia. Article below.                                Net Pic


    Avalanche control produced mostly Sz 1-1.5 Xe, Sc, yesterday. A few Sz 2 Xe.


    Sz 1 Sc soft slabs.

   INFORMATION & OBSERVATIONS:


   There were some areas of wind pressed snow.


    Spanky's was a popular spot to be.


   Young and old.



                       Yesterdays advisory.


   Some areas on the mountain were knee deep.

From Avalanche Canada MIN reports: Dec 22, 2018

From South Coast Touring:
Mitchell Sulkers
Good day in the Hanging Lake zone yesterday. What a difference two weeks make.
At 1400m on a WSW aspect we found 400cm of snow. Numerous natural and sympathetic size one dry slabs running from steep convex features on various aspects in this zone.
Failure plane was a two cm thick facet layer over the 181219 crust/facet layer down 45cm from the surface. Storm slab 45cm fist density from most recent storm.
Compression and Extended Column tests failed easy to moderate (7-12 taps), Sudden Planar, on the facet layer.
We did not push up higher, anticipating larger windslabs up higher, but enjoyed very good tree skiing to 35 degrees. Ski pen from 20-50cm depending on elevation. 35cm new at valley bottom.
Base has suddenly exceeded last year's base at this time of season and even creeks are filling in well.



ARTICLES:

An avalanche has killed a person in Mlynicka Valley: Slovakia

Articles on the avalanche death in Wyoming: Horse Creek

Avalanche Warnings: CTV National

Avalanche danger in some parts of the Swiss Alps: level 4

Bulgarian Mountain Resce Services warns of Avalanches: Sofia Globe

Swiss Ski Resorts turn to "sno farming": SwissInfo

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