21 Apr 2017

April 21, 2017


    AVALANCHE ACTIVITY:

    Sz 2 North of Pemberton Sc

    Locally, wide spread snowballing, cornice control continues to put debris in the bowls.


    YESTERDAY:

    Early Thursday morning April 20, 2017. Mountains were obscured.

    Mount Currie early Thursday morning, eventually the clouds dissipated.

    Debris fan at the bottom of Mount Currie.

    When the sun came out the snow became moist quickly.

    Thursday Morning.

    Ripe Cornices.

    Big Air.

    Stomping the landing.

    Late evening light.

    Pretty impressive face.

Weather Observations for April 21, 2017 taken at 06:00 Hours.

2240 meters      -6, Winds were 10-20 KPH E   --Horstman Hut 
2180 meters      -6, Winds were   5-10 KPH NE--Whistler Peak
1860 meters      -4, Winds were   5-10 KPH NE--Rendevous
1835 meters      -4, Winds were     0-5 KPH NE--Roundhouse
1650 meters      -5, 0 cm of new snow, 0 cm in 24 hrs, 362 cm Base, RH 96%  --Pig Alley
1550 meters      -4, 0 cm of new snow, 0 cm in 24 hrs, 264 cm Base, RH 92%  --Catskinner 
  660 meters     +2, Valley Temp, Max Temp Yesterday was +12.2, 3.5 mm of Precip recorded yest

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


FORECAST:

An upper level ridge in a Northwesterly flow aloft will bring dry sunny conditions to the area. As the day progresses we should see some of the valley cloud dissipate. The FL is expected to jump to 2200 meters this afternoon. A series of weather systems will affect our area by Saturday and continue to bring warm spring showery weather into mid next week. A front will likely move into the area Saturday morning with precipitation expected by the afternoon. The Fl is 2100 meters in the morning, dropping to 1500 meters by Saturday morning. More on the series of frontal bands in Tomorrows post.
Guesstimates: 0 cm by Saturday morning, 5-10 cm by Sunday morning above 1650 meters, 2-6 cm by Monday morning above 1600 meters, 2-5 cm by Tuesday morning above 1700 meters.


    GOES IR image from this am.

    High pressure for today.

   Flow from yesterday into today.

   More precipitation for Saturday.

    Sunday into Monday is also looking wet.

    As is Tuesday.


    OBSERVATIONS & INFORMATION:

   Warm temperatures with snowballing.

   Black Squirel is looking pretty good.

   Rainbow in the Pemberton Valley.

   Cornices are very large.

   Hitting the sweet spot.

VIDEO FRIDAY:

Avalanche in Dagestan: You Tube

Search & Rescue Dog: A hero in the snow

Fat Bike Pond Skim: Instagram

Skiing to Mountain biking all in one run: Volkl.com


ARTICLES:

Italian Tourists extremely lucky in Avalanche: Norway

Recommendations after February Avalanche says better data and more caution needed when evaluating risk-Margin for Error: Longyearbyen, Norway

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