10 Feb 2017

February 10, 2017


    Sz 1 natural avalanche Thurday morning.

    Avalanche control on WB yesterday produced Sz 1-2.5 with up to 60 cm crowns.


    Lots of keen people, 07:30 hrs Thursday February 9, 2017.

    Snow cats were trying hard to keep some runs groomed.

    Snow was great in the morning.

    Precip had eased off in the morning, but back with a vengeance by noon, with some strong winds.

    Big picture Thursday afternoon, looks like the front is heading South.

    Lots of work on Thursday.

    Snowing hard in the afternoon.

    Wind/snow covered skis quickly Thursday afternoon.

    Thursday night in Alpine Meadows. Way more snow fell on the West side of the valley.

Weather Observations for February 10, 2017: taken at 06:00 Hours.

2240 meters    -8, Winds were 50-90 KPH S --Horstman Hut 
2180 meters    -7, Winds were 50-90 KPH E --Whistler Peak
1860 meters    -6, Winds were 30-65 KPH S --Rendevous
1835 meters    -5, Winds were 35-80 KPH S --Roundhouse
1650 meters    -4, 8 cm of new snow, 17 cm in 24 hrs, 277 cm Base, RH 93%  --Pig Alley
1550 meters    -4, 2 cm of new snow, 2 cm in 24 hrs, 180 cm Base, RH 86%  --Catskinner 
  660 meters   +1, Valley Temp, Max Temp Yesterday was -6.3, 3.8 mm of Precip recorded yest


The warm upper air mass that moved through last night was replaced with a weak cold front in a Southwesterly flow aloft. Unfortunatley most of the precipitation went South. Today we can expect light snowfall with overcast windy conditions as a deep surface trough pushes throug our zone. Saturday is looking unsettled as an upper ridge begins to build in the area. The FL will likely hover around surface. Sunday is unsettled with more cloud than breaks. The FL will likely spike at around 1200 meters. The ridge strengthens Monday/Tuesday with a warm air mass in the area. The FL could spike to as high as 2300 meters. Looks like a Pineapple express coming our way for Wednesday.  Guesstimates: 10-15 cm by Saturday morning, Trace -1 cm for Sunday morning.

   Light snow for today with overcast skies.

   Cold front passes through Friday with cooler temperatures and light snow.

   Unsettled Saturday with the chance of some isolated flurries.

    Cooler temperatures Saturday with a Westerly Flow.

   Sunday will be unsettled.

   High builds for Monday.


    Natural avalanche cycle during the storm early Thursday morning.

   Snow was deep in places!!

    Drifting in the trees, Sc Sz 1 in the steep open trees yesterday.

    Ever growing tree bomb.


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