13 May 2019

May 13, 2019


    YESTERDAY:

   Sunrise Sunday 05:30 Hrs, +4.9 Deg C with a 10-15 KPH wind out of the SE.

    08:00 Hrs, + 5.5 Deg c with a 10-15 KPH wind out of the SE.

    Stratus cloud over Squamish in the morning. Pretty much stopped there.

    10:00 Hrs Sunday morning.


    Began to dissipate at around Noon.

    13:00 Hrs.


    13:00 Hrs, +9.4 Deg C with a 0-5 KPH wind out of the SE.

    15:00 Hrs, +9.7 Deg C with a 10-25 KPH wind out of the WNW.

    17:00 Hrs, + 8.0 Deg C with a 5-10 KPH wind out of the WSW.

    19:00 Hrs, + 10.5 Deg C with a 0-5 KPH wind out of the NW.

    20:00 Hrs, +6.1 Deg c with a 5-10 KPH wind out of the SSE.

    21:00 Hrs, + 4'9 Deg C with a 5-10 KPH wind out of the SSW.



Weather Observations for May 13, 2019, 2019 taken at 06:00 Hours.

2180 meters    +1, Winds were 10-15 KPH W--Whistler Peak
1835 meters    +4, Winds were   5-10 KPH E--Round House
1650 meters    +3, 0 cm of new, 0 cm in 24 hrs, Base 167 cm--Pig Alley
  660 meters    +6, Valley Temp, Max temp Yesterday was +26.2, 0.0 mm of precip recorded yest


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



FORECAST:

An upper level trough is moving into our zone in a Southwest flow aloft. The FL will hover in the 2500 meter range before cool wet weather arrives on Tuesday. For today we can expect mostly cloudy skies with a chance of some isolated showers later this afternoon. The low will send moisture our way Tuesday with periods of light rain for most of the day light hours. A weakening upper trough for Wednesday will bring a drier day with mostly overcast conditions with the chance of some sunny breaks. Another frontal band pushes through Thursday as the upper trough remains over the area into the weekend with periods of light rain and mostly overcast skies. Guesstimates: trace to 1 mm by Tuesday morning, 5-10 mm by Wednesday morning, 0-1 mm by Thursday morning.


    GOES IR image from this am.

    More cloud coming our way as the upper trough pushes in for today.





    Fronts along the coast.

    Low will bring mostly rain to the area on Tuesday.




    Weakening upper trough for Wednesday with cooler temps.

    Low keeps growing with periods of rain on Thursday.




    AVALANCHE ACTIVITY:

    An avalanche off Mount Lawson, Alberta has injured 3 people. Articles below.         Net Pic

    Cornice drop entraining wet loose avalanche near Black Tusk.

    Wet loose and wet slab.

    Recent wet loose activity.

    Ariel scout of some of the recent avalanches in the Sea to Sky Corridor.


    INFORMATION & OBSERVATIONS:

    Black Tusk, Alpine High on Sunday was +6.1 at 2180 meters.

    Glide Cracks.

    Sunday afternoon.

    Boomer Bowl from the air.

    Big Picture Sunday afternoon.



ARTICLES:

Avalanche catches group of eight further down mountain below snow line: Kananskis Country

Three hospitalised after Kananaskis Avalanche: Mount Lawson

Group survived Kananasksis Avalanche likely triggered by balmy weather: Calgary Hearld

CDOT says prolific avalanche mitigation led to undetonated ordinance: Colorado

Possibility of more avalanches as snow begins to melt, experts say: Colorado

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