30 Apr 2021

April 30, 2021

     YESTERDAY:

      07:30 Hrs Thursday am.

      08:00 Hrs. +6 Deg C at 660 m. +2 at 1650 m. +4 at 1835 m. +2 at 2180 m.


      10:00 Hrs. +8 Deg C at 660 m. +4 at 1650 m. +4 at 1835 m. +2 at 1860 M. 

     12:00 Hrs. +10 Deg C at 660 m. +6 at 1650 m. +3 at 1835 m. 0 at 2180 m.

     14:00 Hrs. Broken cloud unlimited visibility.

      14:00 Hrs. +14 Deg C at 660 m. +8 at 1650 m. +5 at 1835 m. +2 at 2180 m.


      16:00 Hrs. +16 Deg C at 660 m. +8 at 1650 m. +5 at 1835 m. +3 at 2180 m.

      Satellite image from same time frame as above.



Weather Observations for April 30, 2021 taken at 06:00 Hours.

2180 meters      -1, Winds were 50-65 KPH S--Whistler Peak 
1835 meters     +1, Winds were 20-35 KPH SE--Round House
1650 meters     +3, 11.3 mm in 12 Hrs, 11.3 mm in 24 Hrs, Base 228 cm --Pig Alley
  660 meters     +7, Valley Temp, Max temp Yesterday was +16.4, 0.2 mm of precip yesterday.


      As of 06:00 Hrs in the alpine we have overcast skies and variable visibility. 


This is the last daily post for the season. Many thanks to the sponsors and those of you who clicked the donate button. You still can!!!  Will be posting on a weekly basis over the summer, likely on a Monday. Enjoy the summer and hopefully will be posting again next winter. Cheers!! 



FORECAST:

A weakening upper trough and associated cold front will bring showers this am in a Westerly to South Westerly flow aloft. The FL will spike at around 2400 m before dropping to 1400 m tonight. With the passing of the cold front this afternoon we will see some sunny breaks and April showers into this evening. Drier weather for Saturday with unsettled weather and seasonal temperatures for the first day of May. Weak ridging for Sunday with sunny skies and seasonal temperatures. A weak front arrives Monday with periods of light precipitation and cooler temperatures. Tuesday into Wednesday look unsettled with a mix of sun and cloud. Guesstimates: trace-2 mm by Saturday am, 0 mm by Sunday am, 0 mm by Monday am, 1-3 mm by Tuesday am, 0 mm by Wednesday am, 0 mm by Thursday am.




     GOES satellite image from this am.


      Weakening upper trough with unsettled weather by this afternoon. Some sunny breaks.






      South Westerly-Westerly flow aloft.


      Dry unsettled day on Saturday, mostly cloudy with some sunny periods. High is pushing back.





      High will bring sunny skies for Sunday.


High in control Saturday.

     AVALANCHE ACTIVITY:

      Recent Sz 1 wet loose in the Tantalus Range.

      Recent Sz 1 wet loose West Bowl.

      Evidence of some activity on Mt Currie yesterday, info & Pic from Mike Dempsey


      INFORMATION & OBSERVATIONS:

      08:00 Hrs in Pemberton it was +9 Deg C. High Wednesday was + 14.9 Deg C.

      Squamish Valley 08:00 Hrs.

      12:00 Hrs in the alpine.

     15:00 Hrs.



VIDEOS:

Avalanche information from space: Norway

Rolling stones gather no tents: Scary Moment


ARTICLES:

Another body recovered, toll rises to 17: Uttarakhand Avalanche

Glacier Avalanches more common than thought: ESA

Saharan sand increases the risk of avalanches and thawing: Pistehors.com

Methane release rapidly increasing in the wake of the melting ice sheets: Science Daily

Early touch of winter: New Zealand

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