8 Feb 2021

February 8, 2021

     YESTERDAY:

     Sunrise was at 07:36 Hrs. -10 with a calm SSW breeze. We are gaining 4 min of daylight/day.

      Quick opening with little avalanche mitigation.


     Up through the moist fog.


      Unsettled weather with multiple cloud layers.

      Excellent groomers.

      Excellent off piste.

     Cool clouds all day.

      Sunday Feb 7, 2021. 14:00 Hrs. -8 with a 15-20 KPH SW wind. 0 Deg in the valley with S1.

      Convective flurries in the valley Sunday afternoon.

      Graupel< Click for explanation.

      Parking has been a problem. What are we going to do when they are all electric???



Weather Observations for February 8, 2021 taken at 06:00 Hours.

2240 meters    -14, Winds were   5-15 KPH SSW--Horstman Hut
2180 meters    -13, Winds were 15-20 KPH W--Whistler Peak
1860 meters    -15, Winds were   5-10 KPH E --Rendezvous 
1835 meters    -14, Winds were   5-10 KPH ENE--Round House
1650 meters    -13,  4 cm in 12 Hrs, 4 cm in 24 Hrs, Base 250 cm --Pig Alley
1570 meters    -13,  4 cm in 12 Hrs, 4 cm in 24 Hrs, Base 182 cm--Catskinner
  660 meters      -7, Valley Temp, Max temp Yesterday was +3.7, 0.9 mm of precip yesterday.


      As of 07:00 Hrs this am we have clear skies and unlimited visibility above that cloud layer.


FORECAST:

Mostly sunny weather for today in a Northerly flow aloft. The FL will remain below surface with some isolated convective snow flurries possible tonight. Tuesday will see some clouds/ sun with the chance some snow flurries in the mix. Much colder on Tuesday as the Arctic front continues to push into our zone. A brief disturbance for Wednesday morning with periods of light snow and clearing by the afternoon with a mix of sun and cloud. No significant snowfall until at least Saturday and that is questionable.          Guesstimates: 0-1 cm by Tuesday am, 1-3 cm by Wednesday am, trace -2 cm by Thursday am.



      GOES IR image from this am.

       Mostly sunny weather for today with colder temps as the Arctic front pushes onto the coast.








      500 Mb map for Monday.


      Unsettled with more cloud and colder temps for Wednesday.





      Same with even colder temps for Wednesday.





     AVALANCHE ACTIVITY:

      Update on the avalanche that killed four, buried eight in Utah. Article below.                       Net Pic

      An avalanche has killed a snowboarder in Switzerland. Article below.                             NET PIC 

      An ice climber has died in an avalanche in Haute-Alpes. Article below.                          Net Pic
   

      Recent natural on unsupported steep terrain.

      Recent Na on Spearhead Peak.

      Hard to see but Sz 1 Sc out of Stupid West.

     Bottom of Stupid West.

     No new avalanches observed on Whistler.

     No new avalanches observed on Blackcomb. 1 sluff out of Stupid West. 

 FROM SEA TO SKY AVALANCHE BULLETIN: 

Avalanche Summary

Recent skier triggered wind slabs have been limited to size 1. Explosive control work conducted prior to the weekend produced size 2 cornice and storm slab avalanches.

Snowpack Summary

Wind slabs on a variety of aspects are likely beginning to facet and lose cohesion in the cold temperatures. 50-100 cm of snow sits on a persistent weak layer that consists of facets at upper elevations, surface hoar in sheltered areas, a melt-freeze crust below 1900 m, and a sun crust on south-facing slopes. There could be more than 100 cm on this layer in wind loaded areas.


     INFORMATION & OBSERVATIONS:

      Cornices are huge, will be interesting to see how they respond to cold temperatures.

     Approach all cornices with caution, they can release behind you.

     Blackcomb Glacier windlip has been entertaining.

      Advection <click for definition.

     Cumulus clouds were developing in the am.

      A bit early for the ducks!! Convective clouds over the mountains.

      Everyone was enjoying the alpine experience.

     Skier compaction!!



RECENT MIN REPORTS FROM SEA TO SKY: 

Spearhead & Duffy Lake Areas-Feb 6, 2021: Mountain Conditions Report

Cowboy Ridge: Feb 7, 2021

Cayoosh: Feb 7, 2021

Hanging Lake: Feb 7, 2021



VIDEOS:

Flood waters after glacier collapse,  damages dams: India

Snowmobilers engulfed by an avalanche: Utah

Still dangerous conditions in Montana: Feb 7, 2021

Powder Picker Feb 7, 2021: David Jones


ARTICLES:

Snowmobiler killed in Swan Range avalanche: Montana

An avalanche has killed a snowboarder: Switzerland

A climber has been killed by an avalanche in Haute-Alpes : France

Four killed, four injured in popular ski touring area: Utah

Avalanche details on Wilson Glade avalanche: UAC

Huge avalanche engulfs snowmobilers: Utah

15 Fatalities in 7 days: U.S. Avalanches

Swiss Avalanche Report Jan 29-Feb 4, 2021: SLF

Nanda Devi Glacier burst update: India

Man rescues elk from avalanche: Field, B.C.



WANTED any transceiver either working or not

$150 reward for trading in on a new Arva Neo Pro at $499 
$100 reward for trading in any transceiver in on an Evo 4 at $329 or Evo 5 at $385






Mike Dempsey
604-932-5550
Your representative in Canada and the United States for ATMRECYCYCLINGSYSTEMS.COM and VORTEXDEPOLLUTION.COM in Canada

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