24 May 2021

May 24, 2021

      PAST WEEK:

      Monday May 17, 2021. 12:00 Hrs. +14 Deg C at 660 m. 0 at 2180 m.

      Tuesday May 18, 2021. 12:00 Hrs. +9 Deg C at 660 m. -6 at 2180 m.

     Wednesday May 19, 2021. 12:00 Hrs. Overcast. +7 Deg C at 660 m. -5 at 2180 m.

      Thursday May 20, 2021. 15:00 Hrs. Unsettled. +15 Deg C at 660 m. -2 at 2180 m.


      Friday May 21, 2021. 12:00 Hrs. Blue Bird. +18 Deg C at 660 m. +1 at 2180 m.

      Saturday May 22, 2021. 12:00 Hrs.  +21 Deg C at 660 m. +5 at 2180 m.

      Sunday May 23, 2021. 12:00 Hrs. Mix of sun and cloud. + 18 Deg C at 660 m. +2 at 2180 m.



Weather Observations for May 24, 2021 taken at 06:00 Hours.

2180 meters       0, Winds were 15-20 KPH WSW--Whistler Peak 
1835 meters     +2, Winds were   5-15 KPH SSW--Round House
1650 meters     +3, 0 mm in 12 Hrs, 0 mm in 24 Hrs, Base 159 cm --Pig Alley
  660 meters   +10, Valley Temp, Max temp Yesterday was +18.9, 0.0 mm of precip yesterday.

       As of 07:00 Hrs this am in the alpine we have obscured skies and limited visibility.


FORECAST:

An upper low off Vancouver Island will send a slow moving trough into the area today in a West-Northwest flow aloft. Cool overcast skies with showers are in the mix for today, good chance it will dry out tonight.. Lingering showers will hang around for Tuesday with a mix of mostly cloud with sunny breaks. Looks like dry cloudy weather for early Wednesday morning with periods of light rain starting around 07:00 Hrs for most of the day as the next low pushes through. Will likely see moderate-heavy  precipitation Wednesday night into Thursday am. Rain should ease off sometime Thursday evening with showers into Friday am. Weak ridging will bring a mix of sun and cloud for Friday into Sunday. Guesstimates: trace-2 mm by Tuesday am, trace-2 mm by Wednesday am, 15-30 mm by Thursday am. 2-5 mm by Friday am, 0-trace by Saturday am, 0 mm by Sunday am. 


      GOES image from this am.
 

      Weak trough will push through today with a few showers.





     West-Northwest flow aloft.

     Low shifted to the East with some unsettled weather in its wake. Mix of sun cloud showers Tuesday.





       Next low has some energy, could see a soaker Wednesday into Thursday.



       Low hangs out for Thursday but should weaken by the evening.



      Weak ridging for Friday.

.       Saturday is hopefully going to be a mix of sun and cloud.


      Ridging for Sunday according to some models, time will tell.


      AVALANCHE ACTIVITY:

     An avalanche has killed two skiers on the Aguille Verte. Article below.                 Pistehors.com Pic


      Recent slab avalanche on Black Tusk. Image taken May 20, 2021.

      Different perspective.


      Two more avalanche deaths on Mt Blanc. Article below.                                                 Net Pic


      Slide path 51 after dropping explosives from a helicopter. May 16, 2021             Ken Nickel Image

        Avalanche debris in Duffey Lake.                                                                    Ken Nickel Image

      Older activity in the Brandywine Area.


     INFORMATION & OBSERVATIONS:

     Unsettled Monday afternoon, May 17, 2021. Periods of rain. 12.8 mm recorded at 1650 m Tue am.

      Snow line dropped closer to the valley Tuesday am. 6.8 mm recorded at 660 m. 

       Mostly cloudy on the 19th. High in the valley was +12.7 Deg C.

      Mix of sun and cloud on Thursday. High in the valley was +17.2 Deg C.

     Blue bird Friday. High in the valley was + 21.8 Deg C.

      Saturday was another spectacular day. High in Squamish was +22.4 Deg C.

      Very busy day on the lakes and rivers in Whistler Saturday. High in the valley was + 24.5 Deg C.


      Looking dark to the North Sunday morning. Became unsettled by the afternoon.

.       Sunday became a rather nice day, High in the valley +18.9 Deg C.

VIDEO:

Avalanche on Dome de Miage, May 23, 2021: France


ARTICLES:

Two skiers have died in an avalanche in France: Pistehors.com

A skier and mountaineer swept away by two avalanches: France

Another article on the two separate avalanches mentioned in above article: Pistehors.com

Fresh avalanche warnings after further fatalities: Planet Ski

Avalanche Canada to get $10 million-boost from the province: Vancouver Sun

Ten Backcountry deaths this year in Canada: Avalanche Canada

Update on the two cyclists trapped between two avalanches in Glacier National Park: Montana

Prosecutors drop bid for $168K after destructive avalanche: Colorado

May 2021 ENSO Update: NOAA

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