29 Dec 2018

December 29. 2018


    YESTERDAY:

    Snowing in the valley Friday morning.

    Great skiing in the bowls yesterday.

    Visibility was an issue!

    Couloirs were a good place to be riding.

    A brief glimpse of the sun.

    Best visibility is close to the trees or by the rocks.

    End of the day, that's a lot of kids.

    Image from yesterday afternoon.



Weather Observations for December 29, 2018  taken at 06:00 Hours.

2240 meters       -2, Winds were 80-140 KPH S--Horstman Hut
2180 meters       -2, Winds were 90-120 KPH SSW--Whistler Peak
1860 meters       -1, Winds were 35-75 KPH S--Rendevous
1835 meters        0, Winds were 25-75 KPH SW--Round House
1650 meters      +1, 6 cm of new, 8 cm in 24 hrs, Base 206 cm--Pig Alley
1565 meters      +1, 6 cm of new, 9 cm in 24 hrs, Base 144 cm--Catskinner
  660 meters      +1, Valley Temp, Max temp Yesterday was -1.3, 11.6 mm of precip recorded yest

    As of 07:00 hrs this am we have overcast skies, variable visibility with a mix of rain/snow, at 1860 M.

Recomendation: Stay in Bed. Perhaps some afternoon turns depending on when the front pushes through.


 FORECAST:

A cold front is pushing through this morning in a Westerly flow aloft. The FL will begin to descend to below surface by tonight, presently hovering in the 1800 meter level. Looks like most of the moisture has gone North but we should see light/moderate precipitation into this afternoon. We can expect up to 20-30mm of precip by this afternoon as the cold front exits leaving an upper trough with unsettled weather for tonight into Sunday morning. A weak ridge builds Sunday with sunny skies expected by Sunday afternoon in a Northwesterly flow aloft. We can expect dry unsettled weather for Monday and Tuesday before the next Pacific Front arrives on Wednesday. Guesstimates: 15-20 cm by Sunday morning in the alpine.


    GOES IR image from this am. Looks like most of the moisture headed North.


     Low moving East , Westerly flow with FL descending through out the day.












    Fronts along the coast.


    Upper level ridge with cooler temps.









    Weak high with cold temps for Monday.



    AVALANCHE ACTIVITY:

    Some Sc yesterday produced very small wind slabs.


    INFORMATION & OBSERVATIONS:

    There are some big rock holes out there.

    Horstman Creek

    The Chimney.

    Snow conditions were great.

    Big picture Friday afternoon. Looks like the bulk of the front is on a Northerly trajectory.


From Avalanche Canada MIN Reports:


North of Wendy Thompson Hut: Dec 25, 2018

Rohr: Dec 27, 2018


From South Coast Touring:
Mitchel Sulkers
Spent the day in the Musical Bumps today. Observed from 2200m to 1500m during the course of the day.
Above 1950m, easy to move soft storm slabs on sudden convexities with a ski cut. Releasing from 25-35cm down on facets over 181219 temperature crust.
Below 1950m, storm slab is bonding rather well to the same layer. No ski cuts reacting and hand-sheers were hard. Ski pen tended to increase below 1850m to 35cm in places.
Moderate S winds moving some snow in the afternoon, but temps staying below -5C at TL.
181219 melt-freeze crust becomes noticeable at 1600m, not 1800 as reported in the bulletin. Still supportive in the trees with about 40cm of lighter snow above.
Slide out Singing Pass Trail is ahead of last year quality-wise at this time with good coverage. Caution Corner is still an issue, with its piddly bridge and about a metre drop into the creek.
Lots of folks have been digging and filling cross-ditches below Caution Corner, and a couple of windfalls have been removed. A few binding testing deep ditch crossings near the 900m elevation for those of you on tech bindings...
Torrent channels are in good shape at Harmony and Unnamed Creeks...


ARTICLES:

Skier survives backcountry avalanche: Utah

Snoqualmie Pass: NAC

WB anticipating "slow opening" on Saturday with storm rolling in: Pique

Close call on mountain raises safety concerns: Pique

No comments:

Post a Comment