May 25, 2015

    Very cloud early Sunday May 24, 2015.

    Light rain showers near Pemberton yesterday morning.

    The occasional ray of sunshine broke through the cloud.

    Unsettled and convective by the afternoon with some showers.

    Showers moved through Whistler late yesterday afternoon.

    Just before sunset Sunday night.


Weather Observations for May 25, 2015: taken at 05:00 Hours.

2180 meters      +1, Winds were 20-35 KPH from the NNW
1835 meters      +3, Winds were 10-20 KPH from the WNW
1650 meters      +5, No new snow, Base 60 cm, relative humidity is 100%

  660 meters    +11, Valley Temp, Max Temp Yesterday was +21.0, 0.2 mm recorded on Sun.

   As of 06:00 Hours this am we have overcast skies, light rain and variable visibility.

For the forecast, the slow moving low pressure system will continue to drift Southeast today but will bring mostly cloudy skies and light rain into this morning. We should see unsettled conditions by the afternoon.  The light moist Northwest flow will continue into Tuesday with isolated showers and the chance of thunder showers with convective build up in the afternoons. Unsettled conditions will continue through the week with Thursday now looking like the nicest day of the week as the low exits the area and the high pressure off shore begins to move our way.  The persistent blocking pattern continues to bring much uncertainty to more than a one day forecast.

    Slow low moving into Washington State.

    Low is moving very slowly away from our zone.

    Still bringing mostly cloudy skies to our zone for today with some moisture.

    Low very moist this am.

    Tuesday will also see cloud spinning in our direction.

    Ridge of high pressure will have some influence by Thursday.

    Looking sunny for Thursday.


ARTICLES:

Nepal Villagers return home after river gets unblocked: Kathmandu

Avalanche Canada to continue weather site through the summer: A great weather source

Observations and analysis of two wet-snow cycles: SLF

    Image from late Sunday afternoon.

    Big picture yesterday.

    Log jam on the Lillooet River.

    Colourful swamp.

    Unsettled Sunday afternoon.

    Wood Ducks on the Black Squirrel Golf Course.

May 24, 2015

    Saturday morning May 23, 2015.

    Showers early Saturday morning.

    Some breaks over Pemberton yesterday at sunrise.

    Stratus layer below Whistler Mountain.

    Rain yesterday afternoon above the Pemberton Meadows.

    Some breaks by Saturday evening.


Weather Observations for May 24, 2015: taken at 05:00 Hours.

2180 meters      +4, Winds were 0-5 KPH from the E
1835 meters      +5, Winds were 0-5 KPH from the S
1650 meters      +6, No new snow, Base 70 cm, relative humidity is 100%

  660 meters    +12, Valley Temp, Max Temp Yesterday was +18.4, 0.4 mm recorded on Sat.

   As of 06:00 hours this am we have overcast skies and variable visibility.



For the forecast, weak upper level low is over Southern BC bringing cloudy conditions with the chance of some rain showers later today. Cloud layer should lift and there is still a chance of some sunny breaks later in the day. The surface ridge offshore will maintain low level onshore flow for the next few days with unsettled conditions continuing. Wednesday may be a sunnier day with convective cloud development in the afternoon. Isolated showers are possible for today into Tuesday. Temperatures will increase by Wednesday with highs in the mid 20's.

    Cloud in the area for today.

    Low will slowly move Southeast.

ARTICLES:

White Mountain National Forest less avalanche dog: New Hampshire

More problems in Nepal: Blocked River

Tropical Pacific now at El Nino Levels: Powder Canada

    Just above the Forestry Road along the Lillooet River.

    Ryan River is high. Snowpack is melting very quickly.

    Some breaks later in the afternoon on Saturday.

May 23, 2015

    Very cloudy early Friday May 22, 2015.

    High overcast over the valley early Friday morning.

    Convective cloud development by mid morning.

    Cumulus nimbus developed later in the day with some isolated showers.

    Dark clouds around 20:00 Hours.

    Breaks to the Southwest just before sunset.

Weather Observations for May 23, 2015: taken at 05:00 Hours.

2180 meters      +6, Winds were 0-10 KPH from the NNW
1835 meters      +7, Winds were 0-5 KPH from the NNE
1650 meters      +6, No new snow, Base 75 cm, relative humidity is 95%

  660 meters    +12, Valley Temp, Max Temp Yesterday was +25.7, 0.5 mm recorded on Friday.

    As of 06:00 Hours we have high overcast, a stratus layer and unlimited visibility.


For the forecast, high pressure offshore will maintain moderate to strong onshore flow into next week. The weak low pressure to the Southeast will continue to bring a chance of showers into the mountains. The pattern will be slightly different than the past week where it will likely be cloudier in the mornings breaking in the afternoons with the chance of rain later in the day into the night time hours. The marine stratus layer has moved onshore and will likely lift later this morning with day time heating.

    Still significant moisture to our South and East.

    Will be mostly cloudy today.

    High pressure North and West low Southeast.



ARTICLES:

Snow Avalanche Simulation, visualised with discontinuous texture advection: You Tube

Wet Snow Avalanches: SLF

Wet Snow Avalanches: US National Avalanche Centre

    Big park is beginning its transformation.

    It was certainly a mostly cloudy day with some noise sunny breaks over the valley.

    Serious stratus layer over the ocean.

    Picture from Tofino during the same time frame.

   Big picture early yesterday morning. Stratus cloud has moved onshore.

    Snow in the alpine is melting quickly.

    Looking North around noon Friday.

    Cool clouds Thursday night, view from below Piccalo.                                     Boyd McTavish Pic