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

18 Apr 2021

April 18, 2021

      YESTERDAY:

      08:00 Hrs. +6 Deg C at 660m. +7 at 1650m. +8 at 1835m. +7 at 2140m.

     Wet loose-slab climax avalanche on Joffre.

      We do live in an amazing part of the world.

      Phalnax Ridge.

      Older turns, not many people out and about Satuday am.



     14:00 Hrs. +24 Deg C at 660m. +16 at 1650m. +12 at 1835m. +7 at 2180m.


      Satellite image fro the same timeframe as above image.

     20:00 Hrs. +10 Deg C at 660m. +8 at 1650 m. +8 at 1835 m. +7 at 2180 m.

     New wet slab noted Saturday evening on Parkhurst Ridge.


Weather Observations for April 18, 2021 taken at 06:00 Hours.

2180 meters     +6, Winds were 10-15 KPH SW--Whistler Peak 
1835 meters     +6, Winds were   5-10 KPH SE--Round House
1650 meters     +3,  0 cm in 12 Hrs, 0 cm in 24 Hrs, Base 254 cm --Pig Alley
  660 meters     +1, Valley Temp, Max temp Yesterday was +24.4, 0.0 mm of precip yesterday.


      Sunrise was at 06:12 Hrs, high scattered cloud and unlimited visibility.


FORECAST:

The upper ridge will bring mostly sunny skies and warm temperatureas to the area in a Northerly flow aloft. Slightly cooler than yesterday with some high clouds in the area this am. Will see a transition from off shore flow to onsshore flow sometime during the day. High scattered cloud should disipate later as the sun gets stronger. The FL will continue to remain well above the local peaks with some minor crust recovery expected. Monday and Tuesdasy are looking sunny. Some cloud in the mix for Wednesday. Sunny on Thursday, with some clouds moving in later on Friday. Some wet weather for the weekend. Would be nice to give the forest a drink. May get another quick powder reset for next Monday. Enjoy the unbelievable sunny weather. 


      GOES image from this am.


       Deep low but the high remains the dominat force.




     Northerly flow aloft.


         High continues to be the dominant force with sunny skies for Monday.





       High still in control for Tuesday.

.       Slowly changing, could see some cloud and cooler temps by Wednesday.


     AVALANCHE ACTIVITY:

     Wet loose to wet slab on Joffre.

             Sz 1-2 wet loose on most solar aspects in the Sea to Sky Corridor.

      Mix of wet snow and dirt.

      Wet loose to wet slabs.

      Point releases to slabs.

      Point release to slab to deeper slab.

     Glide Cracks.

      Wet point releases Garibaldi Park.

      Wet climax avalanche in the Callaghan Valley, below tree line.                               Brad Sills Image





From Sea to Sky Avalanche Advisory:

Avalanche Summary

There have been several solar triggered wet loose avalanches reported in recent days, up to size 2.5, on solar aspects. There have also been a number of cornice failures reported over the past week.

Looking forward, wet loose avalanches and cornice failures are expected to continue with sun and warm temperatures. The likelihood and potential size of these increases when temperatures do not dip below freezing overnight, and avalanche activity will likely begin earlier in the day with each subsequent warm day.

Wind slabs may still be possible to trigger on high elevation north aspects.

Snowpack Summary

High overnight freezing levels mean that the snow surface remains moist or wet in many areas. In places where the surface forms a crust overnight, it should quickly soften during they day with sunshine and warm temperatures. The highest elevation north aspects may still hold soft snow or wind slabs.

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:

      +2 in the Pemberton Valley Saturday am. High on Friday was +27.6 Deg C.

      Was an amazing day to check out the Sea to Sky Corridor.

.      Meager Area.


      Surprised at how few cornices have collapsed, still time!!

      Looking down Howe Sound.

      Extra Long Cornice.

     Table Top Mountain.


FROM SEA TO SKY MIN REPORTS:

North Ridge of Duffey Lake: April 16, 2021


VIDEOS:

Wet Slab Avalanches: UAC


ARTICLES:

An avalanche has killed one, seriously injuring another ski tourer on Grober Zunig: Austria

Officals say wind may cause avalanches in Central Wasatch: Utah