20 Apr 2018

April 20, 2018


    AVALANCHE ACTIVITY:

    Sz 1 Sa from Wednesday afternoon.

    Na Sz 1 wet loose from Wednesday afternoon.

    Fresh Debris from Na wet cycle Wednesday afternoon. Yesterday, no new avalanche activity obs.

    Overcast for most of Thursday afternoon, point release  from Wednesday.


    YESTERDAY:


    A few clouds around Thursday morning.

    Clouds built during the morning with a thin high layer of cloud.

    Flat light for most of the day.

    A fairly grey day.

    Still looking like winter in the alpine and at tree line.

    Later in the afternoon.

    Lenticulars and cumulus to the South.


    Thursday afternoon.

    Big picture Thursday, Front will move in from the North.


Weather Observations for April 20, 2018  taken at 06:00 Hours.

2180 meters     -4, Winds were 25-35 KPH S  --Whistler Peak
1835 meters     -2, Winds were 10-15 KPH SE--Roundhouse
1660 meters    - 1, trace of new, trace in 24 hrs  Base 314 cm --Pig Alley
  660 meters    +4, Valley Temp, Max Temp Yesterday was +13.2, trace of precip recorded yest

    As of 07:00 Hrs this am we have overcast skies, variable visibility and it is snowing lightly..




FORECAST:

A warm front with a trailing cold front will push through today in a Westerly flow aloft. The FL will slowly fall from 1500 meters this am to around 1000 meters by tonight. We can expect an increase in cloud cover with some periods of light snow today, with an impulse of moderate snow tonight into Saturday morning, depending on how the cold front tracks. The front will switch to a dry upper level trough for Saturday with periods of light snow in the morning, becoming unsettled in the afternoon with a ridge of high pressure bringing clear skies by Saturday night.  The FL will rise to 1500 meters on Saturday. The ridge builds Sunday with mostly sunny skies and warming temperatures. The FL on Sunday will reach 1800+ meters with a trend to reach 3800 meters by Wednesday. No change expected until next Thursday.
Guesstimates: 5-15 cm by Saturday morning, 1-3 cm by Sunday morning, 0 cm expected Monday thru Wednesday. Sunscreen will be needed!!!


    GOES IR image from this am.


    Low to the North will send a cold front through our zone later today.

    Cold front sliding down the coast.

    Pushes through tonight into early Saturday morning.


    Fronts along the coast.

    Upper level trough for tomorrow.

    Unsettled in the afternoon.


    INFORMATION & OBSERVATIONS:

    Breakable suncrust on SW facing slopes Thursday morning.

    Black Bear Tracks.

    There is alot of debris in the bowls.

    Chateau golf course is slowly getting green.

    Old pinwheel with some new ones on Thursday.

    Looking spring like in the Valley.

    Awesome sledding still to be had. Careful with warming temperatures next week!!

    Spring is certainly here.

    A Whistler iconic cabin.



VIDEO FRIDAYS:

Avalanche in the Hunza Valley: Video

Wet Slide in: Alpental


ARTCLES:

Old Avalanche teaches new lesson: Michigan

Sizziling Temperatures in the Alps: WeLove2Ski

High Mark Pro 3 Avalanche Airbag: Gear Review

Plans to solve grid lock in Little Cottonwood Canyon: U of U

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