4 Dec 2020

December 4, 2020

     YESTERDAY:

      Early Thursday morning. 

      Cloud moved into the area fairly quickly.

     Black & White.

      Thursday Dec 3, 2020. 14:00 Hrs. +2 with a 10-20 South wind. +1 in the valley.


Weather Observations for December 4, 2020 taken at 06:00 Hours.

2240 meters       -4, Winds were 10-15 KPH S--Horstman Hut
2180 meters       -3, Winds were 15-20 KPH SSW--Whistler Peak
1860 meters       -1, Winds were   5-10 KPH SE --Rendezvous 
1835 meters       -1, Winds were   5-15 KPH S--Round House
1650 meters        0, 0 cm in 12 Hrs, 0 cm in 24 Hrs, Base 92 cm --Pig Alley
1560 meters        0, 0 cm in 12 Hrs, 0 cm in 24 Hrs, Base 51 cm--Catskinner
  660 meters       -1, Valley Temp, Max temp Yesterday was +1.8, 0.0 mm of precip yesterday.


      As of 07:00 Hrs this am we have broken cloud and unlimited visibility.



FORECAST:

Upper ridge begins to rebuild today but there is some lingering cloud, so unsettled weather in a Southwesterly flow aloft. The freezing level will rise again today with another inversion.  Ridge strengthens somewhat Saturday with some cloud and more sun in the mix. Sunday is looking overcast with the chance of some Scottish mist. Monday will see some precipitation with warmer temperatures.

Guesstimates: no precip until Sunday? 0-trace by Monday am, 10-20 cm by Tuesday am above 1500 meters. 


      GOES IR image from this am.


      Active low to the North, building High will bring unsettled weather for today with warm temps.






      Fronts along the coast.

      Unsettled Saturday with warm temps and a mix of sun and cloud.





      Overcast Sunday with a chance of some afternoon mist. More of a Westerly flow. Snow on the way.


     AVALANCHE ACTIVITY:

      Warm temperatures have also caused a lot of rockfall below tree line.

From Sea to Sky Bulletin:

On Wednesday, a natural widespread wet loose avalanche cycle up to size 1 occurred. A cornice failure size 1.5 also occurred triggering a small surface slab on the slope below.

As warm air and sunshine hit the region again Friday and Saturday Expect more natural avalanche activity to occur. The longer the heat sticks around the deeper it drives into the snowpack potentially initiating larger avalanches.

Sea to Sky Bulletin is available at the top of the tool bar on the Right side of the page.


      INFORMATION & OBSERVATIONS:

      Pink sky Thursday am.

     Lenticular clouds to the North on Thursday.

      Must be slash burning in the Lillooet Lake area or Harrison Lake. Pemberton?

      Cornices are still on the small side. Use caution!!!


      Old tracks on the curl.



LOCAL AVALANCHE MIN REPORTS:

Lower Disease Ridge: Dec 3, 2020

Round Mtn: Dec 3, 2020


VIDEOS:

Motorists Flee Vehicles: Kargil Road Avalanche

Powder Picker Nov 3, 2020: Meteorologist David Jones


ARTICLES:

The Big 3 Avalanche problems you need to worry about: Local Freshies

Poachers force closure of MacDonald West Shoulder again: Rogers Pass

Avalanche concerns closes Swiss Ski Area: Huge Snow Storm

Snow to be cleared for access to Rubble Creek this winter: B.C. Parks

Sea to Sky Avalanche Forecast Predictor: Avalanche.Shinyapps


 LOOKING FOR AVALANCHE GEAR--CHECK OUT THIS OFFER!!! 


     
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