19 Apr 2021

April 19, 2021

     YESTERDAY:

 
      08:00 Hrs Sunday April18, 2021. +3 Deg C at 660 m. +6 at 1650 m. +6 at 1835 m. +4 at 2180 m.

      Wispy cloud in the am.


     10:00 Hrs. + 10 Deg C at 660 m. +11 at 1650 m. +11 at 1835 m. +5 at 2180 m.

      12:00 Hrs. +15 Deg c at 660 m. +14 at 1650 m. +11 at 1835 m. +6 at 2180 m.

     Wedge Mountain <click for details.

      South West aspect of Wedge.

      Cloud to the north, blue bird over Whistler.

     18:00 Hrs. +18 Deg C at 660 m. +11 at 1650 m. +10 at 1835 m. +5 at 2180 m.


Weather Observations for April 19, 2021 taken at 06:00 Hours.

2180 meters      -4, Winds were 25-40 KPH N--Whistler Peak 
1835 meters      -2, Winds were 10-20 KPH NW--Round House
1650 meters       0,  0 cm in 12 Hrs, 0 cm in 24 Hrs, Base 250 cm --Pig Alley
  660 meters     +2, Valley Temp, Max temp Yesterday was +23.6, 0.0 mm of precip yesterday.

      As of Sunrise, 06:10 Hrs this am, we have clear skies and unlimited visibility.


FORECAST:

Upper level high pressure will bring sunny skies today in a Northerly-North Easterly flow aloft. The FL will rise to around 2500 m today dropping down to around surface tonight. Cooler temps with low level onshore flow.  Ridging for Tuesday with sunny skies. A mix of sun and cloud for Wednesday. Sunny skies again on Thursday. Frontal band arrives Friday afternoon with periods of light precipitation. Series of fronts into early next week. Wet for a few days but we need help keeping the fire season at bay!! Guesstimates: 0 mm Monday-Thursday. 2-6 mm by Saturday am, 8-12 mm by Sunday am, 2-4 mm by Monday am, 1-2 mm by Tuesday am, 12-18 mm by Wednesday am. 



       GOES image from this am.


      High pressure for today with slightly cooler temps.





      Northerly-North Easterly flow aloft.

       High pressure still the dominant feature in the pattern. Sunny day Tuesday.





       Significant low to the North will send some cloud over the ridge for Wednesday.

      Looking clear in this image, time will tell.

     AVALANCHE ACTIVITY:

     Another avalanche fatality in Austria. Transciever signals from lift did not help recovery. Net Pic


     Entry point from fatal avalanche in Austria reported yesterday. Update below.       Peter Fuetsch Pic

      Bottom of the slide path.

      New wet loose on Mount Currie.



From Sea to Sky Avalanche Advisory:

Avalanche Summary

Over the weekend, multiple large to very large wet slab avalanches were observed near Whistler, size 2-4. Many of these involved the full depth of the snowpack, running to valley bottom.

 

Solar triggered wet loose avalanches have been reported each day over the past week up to size 2.5. There have also been a number of cornice failures reported over the past week.

Snowpack Summary

Radiant cooling and (finally) a slight dip in freezing levels overnight have likely formed a thin surface crust in many areas. It should quickly soften during they day with sunshine and warm temperatures. Steep north aspects at the highest elevations may still hold dry snow.

Cornices are large and looming along ridgelines. Sun and warm temperatures will increase the chances of cornice failures, especially when temperatures remain above zero overnight.


     INFORMATION & OBSERVATIONS:

      07:00 Hrs in Pembie, +2 Deg C. High on Saturday was +28.5 Deg C.

      Mt. Tinniswood??? Can someone help me on this one. Old slab.

      Husume and Corona. Wet loose East aspect of Spearhead Peak.

      Horstman Glacier< click for details.

      Different perspective.

      Clouds again at around 16:00 Hrs. Coming from the NE.




FROM SEA TO SKY MIN REPORTS:

Garibaldi Summit: April 18, 2021


VIDEOS:

Gulmarg Avalanche 2018: Northern India


ARTICLES:

Another avalanche fatality in the Stubi Alps: Austria

Update on the fatal avalanche reported yesterday on Grosser Zunig: Austria

Scores of livestock perish in Chitral avalanche: Pakistan

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