1 Feb 2021

February 1, 2021

     YESTERDAY:

      The lift line reached 1 km long fairly quickly. 07:50 Hrs.

      Dumping in the valley. 08:08 Hrs.

     There were some awesome turns to be had.

      First Tracks.

     Too much fun.


     Awesome job getting the alpine open.

      Sunday 14:00 Hrs. -4 with a 15-40 KPH ENE wind. 

     Snow eased off in the afternoon. Stopped at around 15:00 Hrs in the valley.


Weather Observations for February 1, 2021 taken at 06:00 Hours.

2240 meters      -5, Winds were 35-45 KPH SE--Horstman Hut
2180 meters      -5, Winds were 40-50 KPH SE--Whistler Peak
1860 meters      -3, Winds were 10-15 KPH S --Rendezvous 
1835 meters      -3, Winds were 15-25 KPH ESE--Round House
1650 meters      -3, 6 cm in 12 Hrs, 22 cm in 24 Hrs, Base 254 cm --Pig Alley
1570 meters      -3, 6 cm in 12 Hrs, 29 cm in 24 Hrs, Base 195 cm--Catskinner
  660 meters       0, Valley Temp, Max temp Yesterday was +0.9, 22.5 mm of precip yesterday.


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


FORECAST:  

A deep long wave trough to our South will bring periods of light-moderate snow in a South Westerly flow aloft. Hoping the FL will only get to 1200 meters, thinking more 1000 meters. Precip eases by early Tuesday morning with a short lived drying trend. Another weak impulse later Tuesday morning with some unsettled weather, flurries just before and after noon. Drying later in the afternoon with cooler temps.  Ridging with cooler temps for Wednesday. Sunny skies for the morning with some clouds pushing in during the afternoon. A weak front will push in on Thursday. Guesstimates:  22-28 cm by Tuesday am, 2-6 cm by Wednesday am, 0 cm by Thursday am, 2-6 cm by Friday am. 


      GOES IR image from this am.


      Long wave trough to our South will send light-moderate snow for Monday. a bit warm.








      A low to the North will bring a short lived impulse of snow on Tuesday.





      Ridge builds for Wednesday.



      AVALANCHE ACTIVITY:

      An avalanche on Jan Mayen Island, Norway has killed 2, injured 1. Article below.             Net Pic

      A ski tourer has been killed on Pic Blanc de Galibier, France. Article below.     Sylvian Juge Pic

      An avalanche has killed a skier on Dutch Draw, Utah. Articles below.                                UAC Pic


     Avalanche mitigation on Whistler produced Sz 1-2 Xe Xc Xt. 

      Avalanche mitigation on Blackcomb produced Sz 1-1.5 Xe Xl Sc Sa.

From the Sea to Sky Avalanche Advisory:

Avalanche Summary

Avalanche activity is expected on Monday with both natural and human triggered avalanches likely.

At the time of publishing, there were numerous size 1-1.5 human and explosives triggered storm slab avalanches reported on Sunday.

There were several size 1-2 natural, human, and explosives triggered avalanches reported in the region on Saturday.

Snowpack Summary

The Sea-to-Sky region has received between 30-60 cm since Saturday night, and it is expected to continue to pile up on Monday, with an additional 5-10 cm.

There is now about 30-70 cm of recent snow sitting on firm wind affected snow at upper elevations, on surface hoar in sheltered areas, on a melt-freeze crust below 1900 m, and on a sun crust on south-facing slopes.

A crust from early December may be found around 200 cm deep in the snowpack. In shallow rocky areas, recent test results suggest that it may still be possible to trigger this layer. In deeper snowpack areas it has shown no recent results and appears to be unreactive in these areas.


     INFORMATION & OBSERVATIONS:

      Upper Gear Jammer.


      Is this the future??

      Max wind yesterday at 1865 m was 53.8 KPH. At 2240 meters it was 104 KPH.


    As of 14:30 Hrs, 23 cm of new, 50 cm in 24 Hrs. Base 195 cm. Catskinner Weather Plot 1570 meters.

      Soft slabs yesterday, shooting cracks in the new snow. Touchy slabs.

      On the rib. 

      Snow gun choking on snow.

     We have had 57 cm of new snow as of 14:00 Hrs Sunday at 1650 meters in the past 48 Hrs.


LOCAL AVALANCHE CANADA MIN REPORTS:

Pascal Shoulder: Jan 31, 2021

Red Heather: Jan 31, 2021

Brandywine Trees: Jan 31, 2021

Rohr Ridge: Jan 31, 2021


VIDEOS:

Avalanche on Petit Galibier: France

Powder Picker Jan 31, 2021: David Jones

Avalanche Activity in Utah: Jan 30, 2021

Snowmobile triggered avalanche: Jan 31, 2021-Utah


ARTICLES:

2 Killed, 1 injured in an avalanche on Arctic Island: Norway

Skier found dead after being buried in an avalanche on Saturday: Utah

Dutch Draw Accident Report: Utah Avalanche Centre

Two people killed in avalanche in Tyrol: Austria

Ski tourer killed in an avalanche on Saturday: Austria

Avalanche fatality on the Pic Blanc de Galibier: France 

Dog's barking prompts owner's rescue from an avalanche in the Avers Valley: Switzerland

Snowboarders rescued from area with 'avalanche danger' on Mount Seymour: North Vancouver

Skier dies from Snow Immersion Suffocation on Mammoth Mountain: California


       Submit your best avalanche photo to for a pair of  Goggles Feb 1-28, 2021. Sea to Sky Area.

      Thanks to Volkl Canada for sponsoring.  Winner of last pair was Thea Zerbe.

No comments:

Post a comment