4 Apr 2020

April 4, 2020

   YESTERDAY:

    Unsettled in the am, but more clouds than blue.

    Snow flurries in the early am.

    Steady light snow for most of the am.

    There were a few breaks.

    Friday April 3, 2020. 12:00 Hrs. +1 Deg C at 660 m. 1835 m -8.5 Deg C with a 20-30 WSW wind

    Satellite image from same timeframe as above image.

    Big picture Friday afternoon.

    Cool breeze on the Lake out of the North.

    Graupel storm in the afternoon.

    Later in the afternoon.

    Periods of blue just before sunset. Full Moon April 7, 2020.

    Sunset was at 19:47.


Weather Observations for April 4, 2020 taken at 06:00 Hours.

2240 meters    -13, Winds were 15-20 KPH S--Horstman Hut
2180 meters    -10, Winds were 15-20 KPH S--Whistler Peak
1860 meters    -10, Winds were   5-10 KPH SE --Rendezvous 
1835 meters    -10, Winds were   5-15 KPH S--Round House
1650 meters      -9, 1 cm in 12 Hrs, 3 cm in 24 Hrs, Base 279 cm --Pig Alley
1560 meters      -9, 2.0 mm in 12 Hrs, 4.0 cm in 24 Hrs, Base 189 cm--Catskinner
  660 meters      -3, Valley Temp, Max temp Yesterday was +3.4, 2.2 mm of precip yesterday.


    As of 07:00 Hrs this am we have high overcast, unlimited visibility and snowing very lightly.



FORECAST:

A  broad upper trough will bring cloudy weather in a Southwesterly flow aloft. The freezing level will rise to around 1000 meters and drop back to surface tonight. Chance of a sunny break at dusk, time will tell!! Groundhog day on Sunday with slightly warmer temperatures. Ridge begins to build on Monday with unsettled weather with some lingering cloud. Dry warm sunny weather with some clouds will prevail until next Saturday. Guesstimates: trace -1 mm by Sunday morning, 0-trace by Monday morning, 0 mm by Tuesday morning.



    GOES IR image from this am.

     Low will send clouds our way today. May see a few breaks later this afternoon.





    Fronts along the coast.

     Low remains around to give us another cloudy day Sunday.





     Looks like an omega block will keep the lows at bay starting Monday.. 


    AVALANCHE ACTIVITY:

    An avalanche has buried a snowmobiler in Sheep Creek area, Idaho. Article below.   Net Pic

     Locally, a few Sz 1-1.5 Na observed in the afternoon. Sluffing on steep terrain.

    Snowmobile releases hard slab, survived ride. Soldier Mountains, Idaho. April 2, 2020 <click

    Wet Avalanche in Big Cottonwood Canyon, Utah. April 1, 2020 < click for details.


    INFORMATION & OBSERVATIONS:

    Snowing at the Nesters Weather Station in the am,  High yesterday of +3.4, Low of -2.4.


    POW < click for info.

    Cougar Chutes and Purple Haze

    Biking was fun, not many people out and about.

    Several graupel flurries in the afternoon.

    2.2 mm of precipitation recorded at 660 meters, snow and graupel.

    Cloudburst Mountain just before sunset.



    LOCAL INFORMATION:




I got out Thursday for a little outside social distancing time. In moderated terrain, with very talented skiers, close to our favorite heli base.... :)  Up 19 mile Creek. I've included a picture. In the top center you can see one slab cut out by a skier. Probably the day before. Moderate hand shear 25-35 cm down on a thin temp crust. Hazard is 2 at TL. 1 below.
Not sure about alpine but was getting windy with incoming wx. Prob 3


VIDEOS:

Have some concerns: Avalanche Guys



ARTICLES:

Teton Valley man missing in Palisades Avalanche while snowmobiling: Idaho

M 6.5 earthquake shakes central Idaho, causes widespread avalanches: Idaho News

Doing the right thing, mandatory face masks: Los Angeles Times

Swedish Government finally closes Ski Resorts, Bars remain open?: The Telegraph

Recent article on the death of a 28-Year-Old snowboarder killed in avalanche:  Snowboarder

Trespassing skinners asked to stay away from FAR: Fernie Alpine Resort

In B.C.'s high stakes mountain rescues, coronavirus is the newest invisible threat: The Star

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