28 Apr 2021

April 28, 2021

     YESTERDAY:

     08:00 Hrs. +6 Deg C at 660 m. +1 at 1650 m. -1 at 1835 m. -4 at 2180 m.


     08:00 Hrs. A few holes but mostly overcast.

     10:00 Hrs. +9 Deg C at 660 m. +2 at 1650 m. 0 at 1835 m. -3 at 2180 m.

      Overcast Tuesday am.


     12:00 Hrs. +10 Deg C at 660m. +2 at 1650 m. 0 at 1835 m. -3 at 2180 m.

      14:00 Hrs. +11 Deg C at 660 m. +2 at 1650 m. 0 at 1835 m. -3 at 2180 m.

      16:00 Hrs. +10 Deg C at 660 m. +2 at 1650 m. 0 at 1835 m. -3 at 2180 m.

     18:00 Hrs. +10 Deg C at 660 m. +2 at 1650 m. 0 at 1835m. -3 at 2180 m.


     Satellite image from the same timeframe as above image.


Weather Observations for April 28, 2021 taken at 06:00 Hours.

2180 meters      -3, Winds were 25-35 KPH SSW--Whistler Peak 
1835 meters      -1, Winds were 10-20 KPH W--Round House
1650 meters       0,  0.0 mm in 12 Hrs, 0.0 mm in 24 Hrs, Base 235 cm --Pig Alley
  660 meters     +6, Valley Temp, Max temp Yesterday was +11.3, ? mm of precip yesterday.


      As of sunrise, 05:53 Hrs we have overcast skies and variable visibility in the alpine.


FORECAST:

A warm front will bring periods of light precipitation today in a North Westerly flow aloft. The FL will likely spike at around 2400 meters with warm air moving in from the South. Thursday will likely dry out with the chance of some sunny breaks in the mix. Another impulse of moisture arrives for Thursday night into Friday am. Difficult to put the finger on the pulse for Friday afternoon but might see some unsettled weather in  the afternoon. Drying trend for Saturday and Sunday with a mix of sun and cloud. Guesstimates: 1-4 mm by Thursday am, 5-10 mm by Friday am, 1-3 mm by Saturday am, 0-trace by Sunday am. 0-trace by Monday am.


      Satellite image from this am.


        Upper trough will bring overcast skies and periods of light precipitation  for today.





      North Westerly flow switching to Westerly flow aloft.

      Trough with some breaks for Thursday.





      Cool onshore flow for Friday.



      AVALANCHE ACTIVITY:

      No new avalanches observed locally, but not the best visibility from the valley.


      Video footage of this large avalanche triggered in Norway below.


      INFORMATION & OBSERVATIONS:

      Much nicer looking morning in Pemberton. At 08:00 Hrs it was +8. High on Monday was +18.8.

      Looking North Tuesday am.

      Black Tusk Tuesday afternoon.

         Hope Creek on Monday. 5 + Km with no snow on the road.                   Mike Dempsey Pic



FROM SEA TO SKY MIN REPORTS:

No new local MIN reports as of 07:00 Hrs.


VIDEOS:

Triggered avalanche in: Norway


ARTICLES:

Avalanche safety efforts on B.C. highways get solid marks from the Auditor General: The Star

Update on the avalanche that hit army personnel on Siachen Glacier: Northern India

Ski Touring avalanche fatalities double in 2020/2021 Season: CNR

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