21 Apr 2019

April 21, 2019


    YESTERDAY:

    Saturday morning Blue Bird day.

    A few clouds to the West.

    14:00 Hrs -4.4 Deg c with a North wind 20-25 KPH.

    Saturday afternoon many kilometres from Whistler.


    17:00 Hrs, High of +15.5 in the valley.


Weather Observations for April 21, 2019, 2019 taken at 06:00 Hours.

2240 meters     -5, Winds were 35-50 KPH S--Horstman Hut
2180 meters     -4, Winds were 30-45 KPH S--Whistler Peak
1860 meters     -1, Winds were 20-30 KPH S--Rendevous
1835 meters      0, Winds were 15-30 KPH SW--Round House
1650 meters    +1, 0 cm of new, 0 cm in 24 hrs, Base 230 cm--Pig Alley
1565 meters      0, 0 cm of new, 0 cm in 24 hrs, Base 162 cm--Catskinner
  660 meters     -1, Valley Temp, Max temp Yesterday was +15.5, 0.0 mm of precip recorded yest


    As of 07:00 Hrs this am we have broken cloud and unlimited visibility.



FORECAST:

The receding ridge of high pressure and cloud coming from the low will give unsettled conditions for most of the day in a Westerly flow aloft. The FL will top out at around 2200 meters and drop back down to 1700 meters tonight. A weak front will push in tonight with overcast skies and periods of light precipitation into Tuesday night. Weak ridging for Wednesday into Thursday will bring unsettled weather with warm temperatures. Another frontal band is expected for Thursday.
Guesstimates: 0 cm by Monday morning, 5-10 mm of rain by Tuesday morning, 2-6 mm of rain by Wednesday morning. Warm wet snow in the high alpine.


    GOES IR image from this am.


    High recedes, low will send cloud our way with overcast skies this afternoon.






    Fronts along the coast.

    Frontal band for Monday with light precipitation and warm temperatures.





    Low will bring overcast skies for Tuesday.


    High will begin to push in with lingering cloud for unsettled weather.




    AVALANCHE ACTIVITY:

    An avalanche on Des Poilus Glacier has injured a ski tourer. Article below.                    Net Pic

    Locally, widespread Na wet loose Sz 1-2.5. Xb, Nc.  Xc produces Sz 1-2.5.

    Na Sz 1-2.5 reported locally. Outside ski area widespread Na cycle up to Sz 3.

    Sz 3 wet snow avalanche NW aspect 2100 meters near Siska Peak on Saturday. Al Collis Image


    INFORMATION & OBSERVATIONS:

    More activity from Saturday near Appa Lake.                                                              Al Collis Pic

    Climax slide on the Appa Glacier from Saturday.                                                       Al Collis Pic


From Avalanche Canada MIN Reports:

Phalanx: April 20, 2019



ARTICLES:

One hurt in avalanche in Yoho National Park: Des Poilus Glacier

Rapid warming can cause issues: Utah

Glide avalanche releasing: Stavbrekkfonnna

No comments:

Post a Comment