28 Feb 2019

February 28, 2019


    YESTERDAY:

    Early Wednesday morning.

    Sunrise was at 07:00 Hrs.

    Pre-frontal clouds.

    Clouds increased in the morning.

    Started snowing in the alpine at around 14:00 hrs.

    Unsettled again just before sunset.

   Big picture Wednesday afternoon.



Weather Observations for February 28, 2019 taken at 06:00 Hours.

2240 meters     -13, Winds were 5-10 KPH NNW--Horstman Hut
2180 meters     -12, Winds were 5-10 KPH N--Whistler Peak
1860 meters     -10, Winds were 5-10 KPH ESE--Rendevous
1835 meters     -10, Winds were 5-10 KPH NNW--Round House
1650 meters       -9, 9 cm of new, 9 cm in 24 hrs, Base 252 cm--Pig Alley
1565 meters       -8, 8 cm of new, 8 cm in 24 hrs, Base 180 cm--Catskinner
  660 meters       -4, Valley Temp, Max temp Yesterday was +2.0, 0.2 mm of precip recorded yest


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



FORECAST:

An upper level low will bring mostly overcast conditions for today in an Easterly flow aloft. The low is well off the coast so not much in the way of precipitation. Northwest flow aloft for Friday with unsettled weather as the Arctic Front pushes back into our zone. Not much change until next Wednesday when a closed low may develop and bring us some light precipitation. No significant storms expected in the next 10 days. Guesstimates: 1-4 cm by Friday morning.


   GOES IR image from this am.



    Quasi-stationary low for today with mostly overcast conditions.


    500 Mb image for this morning.








    Fronts along the Coast.



Big picture out in the Pacific.



    Low moves South, Arctic High begins to push back into our zone Friday.








    Arctic Front will bring unsettled weather for Saturday with a slight chance of some flurries.


        More of the same for Sunday.



    LOCAL AVALANCHE ACTIVITY:


    Sz 1.5 Sc Gin Peak NW Aspect 50 cm crown. Touchy Windslab. Feb 26, 2019  Fern Vanderporten Pic


   Locally, Xe testing produced a Sz 1.5 on steep Westerly asp otherwise no new avalanches observed.


    Reports of Na sz 1's in the backcountry. See MIN reports below.


    INTERNATIONAL AVALANCHE ACTIVITY:


    Update on the avalanche that killed a solo ski tourer in the Bridger Range. Article below. GNFAC Pic


    INFORMATION & OBSERVATIONS:


    Whistler SAR avalanche rescue practise on Tuesday.                                                 Renata Lewis Pic

   Strong winds again Wednesday. Some lifts were closed and reopened.

    Lots of wind transport.

    Cornices are being wind sculpted.

    Some aspects were skiing well with smooth wind deposited snow.

   Snowing on the snow guns.

    Nester's Weather Station.


From Avalanche Canada MIN Reports:

Mt Duke-Casper Creek: Feb 26, 2019

Reactive Windslabs SW Aspects: Feb 26, 2019

Gin Peak: Feb 26, 2019

Na at treeline: Feb 27, 2019


ARTICLES:

Update on the avalanche fatality in the Bridger Range: Montana

Idaho Ski resorts closes due to much snow: Soldier Mountain

Avalanche stops Trains, I-80 closed from Colfax to Nevada State Line; Siera Nevada

Bozeman avalanche victim Id'd, was found with hand out of snow: Montana

Kamloops search crews urging avalanche preparedness in the backcountry: Victor Kaiser

Switzerland records abnormally mild winter temperatures: Avalanche Prone

Surrey man pulled from avalanche terrain: North Shore

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