April 14, 2017

    AVALANCHE ACTIVITY:

    Locally not much activity, several Sz 1 Sc from steep alpine start zones, some snowballing in PM.


    YESTERDAY:

    Early Thursday morning April 13, 2017.

    Challenging visibility but the snow was awesome.

    Horstman Glacier.

    Cloudy in the am.

    Thursday morning.

    Breaks in the afternoon.

    Blue patches later in the afternoon.

   Nice break around 16:00 Hrs.

    At sweep we had shadows.

Weather Observations for April 14, 2017 taken at 06:00 Hours.

2240 meters      -8, Winds were 20-25 KPH SE  --Horstman Hut 
2180 meters      -8, Winds were 20-30 KPH S  --Whistler Peak
1860 meters      -6, Winds were 10-20 KPH SE--Rendevous
1835 meters      -5, Winds were 10-20 KPH SE  --Roundhouse
1650 meters      -4, 4 cm of new snow, 8 cm in 24 hrs, 358 cm Base, RH 86%  --Pig Alley
1550 meters      -4, 3 cm of new snow, 6 cm in 24 hrs, 265 cm Base, RH 89%  --Catskinner 

  660 meters     +1, Valley Temp, Max Temp Yesterday was +7.1, 7.7 mm of Precip recorded yest

   As of 07:00 Hrs this am we hyave overcast skies and unlimited visibility.

FORECAST:

Cool and showery weather will continue today into Saturday as an upper level low continues to spin cloud our way in a Southwest flow aloft. The FL will range from a high of 1400 meters to a low of 800 meters. Chance of seeing some breaks this evening and we may see some unsettled conditions by Saturday afternoon. High pressure for Sunday will bring mostly sunny skies and warm temperatures.
Monday morning will be unsettled with a mix of sun and cloud before a front arrives in the afternoon.
Guesstimates: 1-3 cm by Saturday morning. Trace-2 cm by Sunday morning.

    GOES IR image this am.

    Low continues tom spin cloud our way.

    Cool showery weather for today.

    Overcast with cool showery weather Sunday.

    High pressure strengthens for Sunday.

    Monday morning is looking nice with another weak front approaching later in the day.

    Upper low next week brings cool showery unsettled weather Tuesday into Thursday.



OBSERVATIONS & INFORMATION:

    Wind drift at tree line.

    Nice snow Thursday.

    Snow accumulating on the Horatman Glacier.

    Cornices continue to grow.

    Nester's weather plot, 660 meters.


VIDEO FRIDAYS:


Physics classes would have helped: Rock Crash

Spring Conditions: Montana

Snowboarder sets off an avalanche: Colorado



ARTICLES:

Avalanche Canada & Rescue Groups combine forces for Backcountry Safety Message: Snowshoeing

Crowd Sourced Snow Observations: Meet Mountain Hub

Gauging snow depth in the Sierras: California

Avalanche report highlights safer-than-average season: Montana