December 3, 2020

     YESTERDAY:

      Powder Mountain. Another awesome day, note the snowmobile tracks in the foreground. 

      Warm temperatures and wind affected the snow quality on certain aspects and elevations.

      Wednesday December 2, 2020. 14:00 Hrs. +8 with a 15-35 KPH South wind. +2 in the valley.

      Alpin glow Wednesday evening.

Weather Observations for December 7, 2020 taken at 06:00 Hours.

2240 meters        0, Winds were 25-30 KPH NNE--Horstman Hut

2180 meters        0, Winds were 20-30 KPH SE--Whistler Peak
1860 meters      +1, Winds were   5-15 KPH SE --Rendezvous 

1835 meters      +3, Winds were 10-20 KPH SE--Round House

1650 meters        0, 0 cm in 12 Hrs, 0 cm in 24 Hrs, Base 94 cm --Pig Alley
1560 meters      +1, 0 cm in 12 Hrs, 0 cm in 24 Hrs, Base 52 cm--Catskinner

  660 meters       -4, Valley Temp, Max temp Yesterday was +2.4, 0.0 mm of precip yesterday.

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

FORECAST:

A weakening front will bring an increase in clouds today in a South Westerly flow aloft. The front is dissipating off the coast but still a chance of some showers this afternoon as it passes through. We may even see a sunny break as the moisture passes. The freezing level will hover in the 1800 meter range today. The upper ridge pushes back into the area on Friday but frontal systems to the North will send cloud our way as well. Unsettled weather for Friday and Saturday. Zonal flow will bring some precipitation to the area by Monday. Guesstimates: 0-1 mm by Friday morning. 

     GOES IR image from this am.

     Slightly cooler with the low moving down the coast of Vancouver Island. Mostly cloudy later today.

      Fronts along the coast.

High pushes back in, low pushing back down. Calling for a mix of sun and cloud Friday into Saturday.

      850 mb image for Saturday. High still the influencer. Unsettled weather for now!!!

     AVALANCHE ACTIVITY:

     Wet loose avalanches Tuesday and Wednesday.

     Wet loose in the trees Wednesday.

On Wednesday, a natural widespread loose wet avalanche cycle up to size 1 was reported. I suspect there to be more activity with the associated intense warming.

On Tuesday afternoon numerous size 1-1.5 wet loose avalanches from steep south aspects were reported. A large natural avalanche size 2-2.5 from a north-facing alpine slope was also reported and likely occurred Monday night.

     INFORMATION & OBSERVATIONS:

      Nice turns from Tuesday.

      Boundary on Whistler.

      Tracks down DOA.

      ID High

    There have been some different up tracks.

LOCAL AVALANCHE MIN REPORTS:

Flute Bowl: Dec 2, 2020

Spearhead Range SSW: Dec 2, 2020

VIDEOS:

Powder Picker Dec 2, 2020: Meteorologist David Jones

ARTICLES:

Snowboarders accused of causing avalanche near I-70 say 4th, 5th amendments rights were violated: Colorado

Avy courses for riders by riders: Mountain Riding Lab

31 percent of Colorado skiers might skip this season and here's why: OutThere

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