17 Apr 2020

April 17, 2020


    More of the same, amazing weather.

    Early Thursday morning.

    Very smooth.

    South end of Green Lake.

    Thursday April 16, 2020. 13:00 Hrs. +16 at 660 m. +4.5 with a 10-20 kph W wind at 1835 m.

    Satellite image from the same timeframe as above image.

    Big picture Thursday afternoon.

    Yet another Blue Bird Day.

    Big Old Softie.

    A few high clouds at the end of the day.

Weather Observations for April 17, 2020 taken at 06:00 Hours.

2240 meters    -3, Winds were 20-25 KPH S --Horstman Hut
2180 meters    -2, Winds were 35-45 KPH SW --Whistler Peak
1860 meters     0, Winds were 15-30 KPH E  --Rendezvous 
1835 meters   +1, Winds were 15-30 KPH SW --Round House
1650 meters     0, 0 cm in 12 Hrs,   0 cm in 24 Hrs, Base 238 cm --Pig Alley
1560 meters   +2, 0 mm in 12 Hrs, 0 mm in 24 Hrs, Base 164 cm--Catskinner
  660 meters   -1, Valley Temp, Max temp Yesterday was +17.7, 0.0 mm of precip yesterday.

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


A weak trough will bring an increase in clouds today with some intermittent isolated showers later this afternoon in a Northwest flow aloft. The ridge rebuilds Saturday into Sunday with mostly sunny skies. An upper low will begin to push down from the Aleutians on Monday with mostly cloudy skies, transitioning to periods of light precipitation into Tuesday. More of the same on Wednesday with unsettled weather Thursday and Friday. More rain by Saturday. Guesstimates: 1-3 mm by Saturday morning.

    GOES IR image from this am.

    A weak upper trough will push through today.

    Fronts along the coast!

     Unsettled Saturday with a mix of sun and some cloud.

     Ridge rebuilds for Sunday.


    An avalanche on Red Peak, Co has killed a Backcountry Skier. Article Below.  Greg Hansen Image

    Old wet loose, locally.

    No new avalanche activity observed on Whistler.


    Won't be long before someone is wakeboarding? Or maybe not, boat launch may be closed!!

    Old tracks still visible.

    Not a cloud in sight.

    Old wet loose on Armchair Glacier.

    The past week melted all the snow at 660 meters. High yesterday was +17.7 Deg C.

Local Submissions:


Fraser Valley Farm Forecast with meteorologist: David Jones

Cold Smoke Bails: Young Bones


Backcountry skier killed in one of two avalanches on Wednesday: Colorado

Colorado Avalanche Information Center report on the fatality at Red Peak: CAIC

There have been 11 Human Triggered avalanches in Colorado in the past week: SnowBrains

A dry storm is hitting the Pacific North: Cliff Mass Weather Blog

Colorado still seeing many injuries in the backcountry: Summit County SAR

Avalanche Terrain Information Study: Help Out

MSU students research applies GIS to avalanche terrrain: ATES Model

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