17 Feb 2019

February 17, 2019

    YESTERDAY:

    Mostly cloudy Saturday morning.

    Some blue patches passing through in the morning.

    Still mostly cloudy in the afternoon.

    Convective flurries in the afternoon.

    Nice turns to be had.

    More breaks just before sunset.

    Just after sunset which was at 17:30 Hrs.


Weather Observations for February 17, 2019 taken at 06:00 Hours.

2240 meters    -11, Winds were 25-40 KPH NNE--Horstman Hut
2180 meters    -11, Winds were 25-45 KPH N-Whistler Peak
1860 meters      -9, Winds were 20-30 KPH N--Rendevous
1835 meters      -9, Winds were 10-20 KPH NNE--Round House
1650 meters      -9, trace of new, trace in 24 hrs, Base 250 cm--Pig Alley
1565 meters      -7, trace of new,  in 24 hrs, Base183cm--Catskinner
  660 meters      -7, Valley Temp, Max temp Yesterday was +1.8, 0.0 mm of precip recorded yest


    As of 07:00 Hrs this am we have scattered cloud to the North and unlimited visibility.


FORECAST:

An upper level ridge will give us cool sunny conditions for today in a Northerly flow aloft. The FL will remain at surface for the next couple of days. Monday morning will also be sunny before a weak front pushes into our area with some clouds developing in the afternoon. Overcast with some snow flurries for Tuesday. Unsettled Wednesday morning before the ridge rebuilds for Wednesday afternoon. Unsettled dry day for Thursday before an other weak frontal band on Friday.
Guesstimates: 1-3 cm by Wednesday morning.


    GOES IR image from this am.

    Arctic high will bring a cool sunny day.




    Fronts along the coast.

    Arctic high still the winner on Monday.




     Weather from the North pushing down the coast on Tuesday.

    Colder air for Wednesday.



    AVALANCHE ACTIVITY:

    No new avalanches observed yesterday locally. Sz 1 soft slabs possible.

    Sluffing on steep terrain.


    INFORMATION & OBSERVATIONS:

    Nice looking chapeau.

    Yes, cornices are quite big and fragile.

    Always know where you are and scope out your line on steep lee slopes.

    There was some nice light at days end on Saturday.




From Avalanche Canada MIN Reports:

Brohm Ridge, Slide Corner: Feb 15, 2019




ARTICLES:

Fully buried skier revived after Teton Pass Avalanche: Montana

Strike Team Shovel Method--Positioning and Rotations: BCA

Avalanche warning for Idaho's Island Park area: Extreme

Special Avalanche bulletin for the Cascades: NWAC

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