15 May 2019

May 15, 2019

    YESTERDAY:

    Tuesday May 14, 2019. Sunrise was at 05:27 Hrs, +2 Deg C with a 15-30 KPH wind out of the E.

    08:00 Hrs, snowing very lightly--+ 1.8 Deg C with a 10-30 KPH wind out of the SE.

    10:00, +1.2 Deg C with a 10-30 KPH wind out of the S.

    Tuesday afternoon.

   16:00 Hrs, +1.6 Deg C with a 5-10 KPH wind out of the S.


    18:00 Hrs, + 0.8 Deg C with a 10-30 KPH wind out of the SE.

    20:00 Hrs, +0.7 Deg C with a 15-35 KPH wind out of the SE.



Weather Observations for May 15, 2019, 2019 taken at 06:00 Hours.

2180 meters     -3, Winds were 0-5   KPH ESE--Whistler Peak
1835 meters      0, Winds were 5-10 KPH NNE--Round House
1650 meters    +1, 4.2 mm of precip, 6.3 mm in 24 hrs, Base 158 cm--Pig Alley
  660 meters    +7, Valley Temp, Max temp Yesterday was +10.6, 1.7 mm of precip recorded yest


    As of 07:00 Hrs we have scattered cloud and unlimited visibility.

    Dusting of fresh snow in the alpine this am.



FORECAST:

A weak trough in a Southerly flow aloft will bring unsettled weather for today. There is a low to the North and a Low to the South. The FL will rise to  2500+ meters with a mix of sun and cloud. The Southern low will park just South of our zone, so tomorrow we can expect overcast skies and some light rain later Thursday afternoon. More rain for Friday. We may get lucky with a mixed bag on the weekend.  Guesstimates: 0-trace by Thursday morning, 1-2 mm by Friday morning, 5-10 mm by Saturday morning.

The weather pattern right now is challenging to determine precipitation amounts. Yesterday Squamish received 17.7 mm, Whistler recorded 1.7 mm while Pig Alley received 6.3 mm in 24 hrs, Catskinner recorded 3.5 mm in 24 hrs, and Pemberton recorded 0.6 mm.


    GOES IR image from this am.


    Weak upper level trough between two lows with unsettled weather for today.





    Fronts along the coast.

    Periods of light rain with seasonable temperatures for Thursday during daylight.





    Low from the North begins to slide South with light precipitation.

    Weak trough for Saturday, may see some breaks.




    AVALANCHE ACTIVITY:

    Locally, not much going on. Some fresh snow in upper elevations easily triggered small pockets.


    Solo skier causes avalanche hitting 2 visitors in RMNP. Article below.                     CAIC Image


    INFORMATION & OBSERVATIONS:

    Early Tuesday morning.


    Light rain started in the valley at 08:15 Hrs. + 10 Deg C.

    Thick cloud Tuesday morning.

    Light rain in Howe Sound Tuesday morning.

    Vegetation is certainly liking the rain!!!

    Cloudy and wet at Horseshoe Bay.

    Wet in Vancouver.

    Big picture Tuesday afternoon.

    Started breaking in Whistler at around 19:00 Hrs.

    21:00 Hrs, +9 Deg C. High yesterday at 660 meters was +10.6 Deg C.



ARTICLES:

Solo skier causes avalanche that hits 2 visitors to RMNP: Colorado

World's first electric snowcat: Pistenbully 100 E

70+ avalanches in May show that slide risk still exists in Colorado: OutThere

A wet period ahead for the U.S. West Coast: Cliff Mass Weather Blog

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