28 Dec 2016

December 28, 2016


    Soft slabs in isolated terrain features

    Sz 1-Sz 2 soft slabs Tuesday. (1 Sz 2)

    Hard to see Fx line Sz 2 out of the Lady.

Avalanche control on WB Tuesday produced some Sz 1-Sz 1.5 ssl Xe , with some Size 1 Sc on steep lee terrain in the new snow. One Sz 2 recorded in Blackcomb Glacier, Xe.


    Tuesday morning December 27, 2016.

    A few sucker holes in the morning.

    Some nice turns on the lower mountain.

    Lots of folks heading into Spankys yesterday.

    Power Flurries at noon.

    This image taken at the same time as above photo.

    Some Traverses and Chutes have been scoured,

    Nice snow if you know where to go.

    Broken later in the day, sunset was at 16:16 Tuesday.


Weather Observations for December 28, 2016,: taken at 06:00 Hours.

2240 meters   -11, Winds were 30-40 KPH S    --Horstman Hut 
2180 meters   -10, Winds were 40-55 KPH S    --Whistler Peaki7 
1860 meters     -9, Winds were 25-40 KPH SE --Rendevous
1835 meters     -8, Winds were 30-45 KPH S    --Roundhouse
1650 meters     -7, 3 cm of new snow, 5 cm in 24 hrs, 184 cm Base, RH 91%  --Pig Alley
1550 meters     -6, 2 cm of new snow, 4 cm in 24 hrs, 122 cm Base, RH 86%  --Catskinner 
  660 meters     -1, Valley Temp, Max Temp Yesterday was +0.4, 4.4 mm of Precip recorded yest

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


A weakening upper level trough will continue through the zone in a Westerly Flow Aloft switching to Southwesterly sometime this afternoon. The freezing level may rise to 700 meters with the Southerly flow. A weak ridge of high pressure is just South of our zone so it will be interesting to see exactly what will transpire. The atmosphere is somewhat unstable so light snowfall is possible during the day.  A vigorous front will arrive late Wednesday night/early Thursday morning with strong winds and heavy snowfall. Thursday the trough will quickly move through with moderate/heavy snowfall with a trailing cold front. If the flow aligns well we could see up to 40 cm with this event.( May go South) Friday will see a cool airmass in a Northwesterly onshore flow with mostly sunny conditions. Another weak short lived front for Saturday before a blocking pattern of high pressure moves into the area next week with cold temperatures. Guesstimates: 5-15 cm by Thursday morning, 25-35 cm by Friday morning.

    Looks overcast for most of the day. Good looking front heading our way!!

    A weakening upper level trough

    Frontal band for Thursday with the possability of up to 35 cm of snowfall by Friday.

    A frontal wave for Saturday.

   Cold Northerly flow for Sunday into Monday.


New information on Battery Type to be used with element and pulse transceivers: Mammut

Three Valley Gap gets new Avalanche Control Device: Wyssen Avalanche Towers

Utah Avalanche Center urges Backcountry Preparedness: Avoid the accident altogeather

Avalanche Danger High in South Central Idaho Mountains: Twin Falls

Ten Avalaanches in Bridger Teton: Jackson, Wyo


   Nice turns down the curl.

    Know where you are going, easy to get in over your head.

   Still hard stratuggi on some of the traverses.

    Lots of wire rope!!

   Pine Marten outside the Peak to Peak Return Station.

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