18 Apr 2018

April 18, 2018


    AVALANCHE ACTIVITY:

    Old moist avalanche activity observed yesterday.

    Locally, Sc & Xe produced some Sz 1-1.5 ssl. Some Sz 1 Na & Nc observed.


    YESTERDAY:

    A few breaks in the morning.

    Snow line at around 1000 meters.

    Convective cloud development in the morning.

    Whistler Mountsin in the Am.

    Mostly cloudy in the afternoon.

    Later in the day.

    18:00 Hrs Tuesday afternoon, looking quiet.

    Tuesday afternoon.

    Big picture on Tuesday.


Weather Observations for April 18, 2018  taken at 06:00 Hours.

2180 meters     -6, Winds were 0-5 KPH N    --Whistler Peak
1835 meters     -6, Winds were 0-5 KPH NNE--Roundhouse
1660 meters    - 5, 3 cm of new, 3 cm in 24 hrs  Base 321 cm --Pig Alley
  660 meters    +1, Valley Temp, Max Temp Yesterday was +9.3, trace of precip recorded yest

    As of 07:00 Hrs at 1835 meters we have obscured skies and limited visibility.


FORECAST:

A weak upper ridge will bring unsettled weather for this am in a Southerly flow aloft. The FL will likely rise to around 1600 meters dropping to 800 meters tonight. The air mass is dry with no precipitation expected today. A mix of sun and cloud, sunnier by Thursday morning with the FL rising to 2000 meters. A chance of a shower on Thursday afternoon as a few clouds push through-- as a Pacific Frontal band moves onshore for Friday. A cold front will bring moderate snowfall to the area Friday night dissipating by Saturday morning. A high builds for Sunday into Monday.
Guesstimates: 0 cm by Thursday morning, trace-1 mm of rain by Friday morning, 5-15 cm by Saturday morning, 4-6 cm by Sunday morning, o cm by Monday morning.


    GOES IR image this am.

      Weak ridging from the South.

    Unsettled this am.

    Sunnier this afternoon into this evening.


    Fronts along the coast.


    Sunny Thursday morning.

    Clouds move in Thursday afternoon.


    INFORMATION & OBSERVATIONS:

    View from 2180 meters early this morning.

    Soo valley.

    Mouth of the Fitzsimmons River.

    Snowballing on solar aspects yesterday where the sun was shining.

    Wide spread wet cycle over ther past few days at lower elevations.


Recent Avalanche Canada MIN Report:

Storm Snow Skiing


ARTICLES:

Portugal's only ski resort closes-too much snow: Serra du Estrela

Mountain Guides accept plea bargin as they face charges of manslaughter: Italy

Saddle Peak, MT Avalanche Fatality: MWAC

Avalanche danger persists in Southwest Montana: Bozeman

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