January 10, 2017

    AVALANCHE ACTIVITY:

    Sa Sz 1 soft slab partial burial on Surfs Up-Winky Pop , 30 cm slab  on Monday.

    Inversion and moist air mass Sunday night did not help with the snow quality in the alpine.

    Avalanche control on WB produced Sz 1-1.5 soft storm slabs Xe, Xl, Sc, Sa. A Sa Sz 1 was                 reported South of Whistler.




   YESTERDAY:

    Soft groomers. First lift, Monday January 9, 2017.

    There were nice turns to be had, 10-25 cm of low density snow depending on elevation & aspect.

    Overcast and very light snow early Monday morning.

    Rendevous Deck.

    Danger Scale sign at the blow hole.

    Crystal Zone..

    Monday Morning.

    Snowed more in the valley yesterday morning..

    25 cm on Lower Gear Jammer, while Lower Cruiser only had 15-20 cm.

    Clouds in the valley just before sunset.


WEATHER OBSERVATIONS:

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

2240 meters   -13, Winds were 25-35 KPH NNE--Horstman Hut 
2180 meters   -13, Winds were 20-35 KPH E     --Whistler Peak
1860 meters   -14, Winds were 10-20 KPH NE   --Rendevous
1835 meters   -14, Winds were  5-10 KPH ENE --Roundhouse
1650 meters   -13, 2 cm of new snow, 3 cm in 24 hrs, 189 cm Base, RH 93%  --Pig Alley
1550 meters   -14, 1 cm of new snow, 3 cm in 24 hrs, 110 cm Base, RH 90%  --Catskinner 

  660 meters     -9, Valley Temp, Max Temp Yesterday was -5.1, 5.1 mm of Precip recorded yest

-13 with a 30 KPH wins brings the windchill too -23. Cover up!!!

   As of 07:00 Hrs at 1860 M we have broken cloud and variable visibility-it is snowing lightly.

FORECAST:

Unsettled weather this morning with a few clouds remaining from the weak shortwave trough that is moving South. Clear skies by this afternoon as a  dry Northerly flow with cold temperatures and outflow winds will be with us until Friday. Several weak warm fronts will move onshore for Friday into the weekend. At this time Friday will likely be unsettled with increasing cloud as the day progresses. Saturday will be overcast with some very light snow, a stronger warm front arrives Sunday with moderate precipitation and warmer temperatures. The freezing level will begin to rise on Saturday into Sunday and could get as high as the weather plot at the bottom of Catskinner Chair. Stay warm, cold today.

    Missed us again!!

    Clouds will disperse and clear skies for today.

    Looking cold and dry for Wednesday.

    Thursday is also looking clear and dry.

    Frontal bands for the weekend, first one arrives on Friday.

    Snow Saturday into Sunday with seasonable temperatures..


ARTICLES:

The Science behind avalanches: Walking Mtn. Science Center

Avalanche Control on Mammot Moutain requires a big gun: 105 mm Howitzer

Avalanche Warning: Wyoming

After "Close Call" Saturday Aspen area Avalanche risk soars higher: CAIC

Crested Butte closed because of avalanche danger: Too Much Snow

Idaho 75 closed due to avalanche risk: 30 Mile Section

Avalanche up to 15 Feet deep closes I-70 in both directions: Vail Pass




    OBSERVATIONS:

    Graupel and stellar conglomerates in the valley Monday morning.

    Beacon Checker at the entrance into the Eastern section of Blackcomb Glacier.

    Purple Haze

    Nice snow in Feather Tree.

    Wind pressed on SE exposure Blackcomb Glacier, yesterday, some ribs skied well.

    A few breaks during the day.

    Not a lot of traffic into Spanky's.