25 Feb 2017

February 25, 2017


    An avalanche has killed a male snowboarder in Niseko, story in article section.         Net Pic

    No new avalanche activity observed yesterday locally.


    Unsettled in the morning, Friday February 24, 2017.

    Dusting of new snow on the tracked truck.

    Peak to Valley course was in great shape.

    Flat light at the top of the course.

    Clouds did get thicker as the day progressed.

    Busy place at the end of the day.

Weather Observations for February 25, 2017: taken at 06:00 Hours.

2240 meters      -14, Winds were 20-25 KPH SE   --Horstman Hut 
2180 meters      -13, Winds were 25-30 KPH S     --Whistler Peak
1860 meters      -12, Winds were 15-20 KPH ESE--Rendevous
1835 meters      -11, Winds were  15-30 KPH S    --Roundhouse
1650 meters      -12, trace of new snow, 1 cm in 24 hrs, 252 cm Base, RH 81%  --Pig Alley
1550 meters      -10, trace of new snow, trace in 24 hrs, 183 cm Base, RH 73%  --Catskinner 
  660 meters      -11, Valley Temp, Max Temp Yesterday was +2.5, trace of Precip recorded yest

    As of 07:00 hrs this am we have clear skies and unlimited visibility.


Unsettled again for this morning as the ridge that developed last night breaks down and an upper level trough pushes into our zone in a Northwesterly flow aloft. Expect cloud to fill in later this morning into this afternoon with light snowfall by this afternoon. The FL will remain just below the surface. Sunday will be mostly cloudy in the morning becoming unsettled in the afternoon. Monday is looking like a sunny day with a Northerly flow aloft. A low pressure system out of the Gulf of Alaska will send a series of frontal bands our way from Tuesday into next weekend. The FL will hover between 800-1200 meters, with some good precipitation amounts by Thursday.
Guesstimates: 4-6 cm by Sunday morning, trace-1 cm by Monday morning.

     GOES IR image from this am.

    Unsettled this am with cloudy skies by this afternoon.


    Cloudy Sunday morning, becoming unsettled by the afternoon.


     Awesome morning.

    Flurries at the start.

    Unlimited visibility to the valley.


Avalanche in Niseko has claimed the life of a male snowboarder: Japan

The Human Factors & Avalanche Avoidance: Mountain Sledder

Report describes how man survived avalanche that killed his friend: 9 News

Avalanche Training: US Army

No comments:

Post a Comment