27 Jan 2020

January 27, 2020


    Early Sunday morning, 0 Deg C in the valley at 08:15 Hrs.

    Snow flurries transitioned to showers Sunday morning in the valley.

    Conditions improved by noon.

    Sunday January 26, 2020. 12:00 hrs. -2.7 deg C with a 15-35 KPH South wind.

    Same time frame as above image.

    Big picture on Sunday.

    Skiing conditions were good if you knew where to go.

    More cloud by the end of the day.

    Mid mountain cloud at days end.

    Winterstoke gathering at RMU was fun.

Weather Observations for January 27, 2020 taken at 06:00 Hours.

2240 meters    -7, Winds were 60-75 KPH NNE--Horstman Hut
2180 meters    -6, Winds were 55-85 KPH SSE--Whistler Peak
1860 meters    -5, Winds were 20-40 KPH SSW --Rendevous 
1835 meters    -5, Winds were 25-45 KPH SSW--Round House
1650 meters    -3, 8 cm in 12 Hrs, 15 cm in 24 Hrs, Base 238 cm --Pig Alley
1560 meters .  -3, 6 cm in 12 Hrs, 11 cm in 24 Hrs, Base 167 cm--Catskinner
  660 meters   +2, Valley Temp, Max temp Yesterday was +4.5, 3.0 mm of precip yesterday.

    As of 07:00 hrs we have broken cloud, unlimited visibility and it is snowing lightly.


An exiting trough will bring periods of light precipitation this am in a Westerly flow aloft. A drying trend into this afternoon with some sunny breaks before another weak frontal band arrives tonight, into Tuesday morning. The freezing level will hover in the 1000 meter range. Unsettled weather for Tuesday as a weak upper level low is replaced by a weak ridge. A weak frontal band arrives for Wednesday morning? and another on Thursday. A strong warm moist Pacific Storm is likely to arrive Friday and continue into Saturday. Guesstimates: 5-10 cm by Tuesday morning, Trace-2 cm by Wednesday morning, 15-20 cm by Thursday morning.

    GOES IR image from this am.

     Low to our West but unsettled by this afternoon.

    Fronts along the coast.

     Unsettled by Tuesday afternoon.

     Trough for Wednesday, might be juicier than forecasted.


    Avalanche control on Whistler produced Sz 1-2 Xe Sc.

    Avalanche control on Blackcomb produced some Sz 1 Xe, Sc.

    Results in Flute, avalanche mitigation went until 14:00 Hrs.

    Na Sz 1 just below ID High.

    Close up.

    Sz 1 out of low Test.


    There was 3.0 mm of precipitation recorded at 660 meters Sunday.

    Prior to Harmony opening.

    That is a lot of Rime

    Important signs you should know about.

    Eventually Harmony opened, The Peak Chair opened at 14:15 Hrs.

    Cornices were growing with the strong winds yesterday am.

    Yes there were strong winds.

    Very busy on Lower Disease ridge.

    Spanky's was opened quickly Sunday morning.


Size 3 off Atwell Peak: Jan 24, 2020

Summary of Conditions: Jan 26, 2020

Joffre Shoulder: Jan 26, 2020


Whistler Weather with meteorologist : David Jones


3.9-magnitude quake brings fear of avalanches in snow bound: Kashmir

New avalanche website launched for Grand Teton National Park: Montana

First-ever backcountry ski area opens next month: Colorado

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