27 Dec 2016

December 27, 2016


Avalanche Problem 1: Wind Slabs

What Elevation?

Which Slopes?

Chances of Avalanches?

Expected Size?

New snow and strong winds have formed fresh wind slabs at higher elevations and in exposed areas.

Travel and Terrain Advice

  • Be careful with wind loaded pockets, especially near ridge crests and roll-overs.
  • Minimize overhead exposure during periods of heavy loading from new snow, wind.
  • The new snow will require several days to settle and stabilize.

Locally--Sz 1 ssls with Sc later in the day on steep lee terrain.


    First lift up, 07:00 Hrs Monday December 26, 2016.

    Perfect cord.

    Flurries in the morning.

    Light snow later in the am.

    Blowing and snowing in the afternoon.

    Dumping at 17:00 Hrs in the valley.

    Let it snow, let it snow, let it snow.

    Winter Wonderland!!

    Image from yesterday morning.

    Big picture yesterday afternoon.


Weather Observations for December 27, 2016,: taken at 06:00 Hours.

2240 meters     -9, Winds were 40-55 KPH S       --Horstman Hut 
2180 meters     -9, Winds were 45-60 KPH SSW --Whistler Peak
1860 meters     -7, Winds were 20-40 KPH S       --Rendevous
1835 meters     -7, Winds were 20-50 KPH SSW  --Roundhouse
1650 meters     -5, 22 cm of new snow, 26 cm in 24 hrs, 188 cm Base, RH 93%  --Pig Alley
1550 meters     -5, 13 cm of new snow, 16 cm in 24 hrs, 125 cm Base, RH 93%  --Catskinner 
  660 meters     -3, Valley Temp, Max Temp Yesterday was -5.4, 13.7 mm of Precip recorded yest

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


A slow moving short wave trough will move through the area today in a Southerly low level flow. The freezing level will remain at or near the surface with light snowfall all day and a chance of some breaks in the afternoon. The trough will continue into Wednesday with another impulse of precipitation Wednesday night into Thursday morning as another cold front pushes through the zone. As of now a ridge will likely build for Friday with some sunny skies. Guesstimates: 6-8 cm by Wednesday morning, 15-20 cm? by Thursday morning, 15-20 cm by Friday morning.

    Cold front has moved East of the area with cold unstable air in its wake.

   Strong onshore flow of cold and unstable air will bring light snow to the area today.

    Weaker onshore flow for Wednesday as a weak flat ridge develops.

    Low pressure will send another cold front our way Wednesday night into Thursday morning.


Five avalanches on Scotlands Mountains in just 48 Hours: Considerable Risk

Snowfall warning for Vancouver up to Squamish: Environment Canada

"We don't want to Cry Wolf"-Avalanche Canada : Vancouver Sun

Officials warn of avalanche danger in Colo Mountains: 9 News

Turnagain pass opens for motorised use despite high avalanche danger warning: Alaska


   Plate stellars on the trees Monday morning.

   Storm Day with cold dry snow.

   Awesome skiing in the afternoon. Tree skiing was quite nice.

   Lots of new snow in the valley.

    Snowing in the valley at 19:30 Hrs.

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