9 Apr 2018

April 9, 2018


    AVALANCHE ACTIVITY:

    An Avalanche has claimed Aspen Mountain Rescue member, article below. Erik Scarvan Pic


    Natural slab avalanche from the last storm cycle.

    Numerous Sz 1-2.5 wet loose avalanches from last warm up.

    Just one of many.

    Some fairly big results well below tree line.


    Locally, Sz 2-2.5 out of Hanging Roll, Mostly Sz 1 ssls Xe, Xc.


    YESTERDAY:

    08:00 Hrs Sunday morning.

    Cumulus cloud development in the morning.

    Blackcomb through the cloud.

    13:00 Hrs, flurries and +4 Deg C at 1860 meters.


   14:00 Hrs +1 Deg C at 1835 meters.

    Fragile Seracs!!

    Clouds thickened near the end of the day.

    Later in the afternoon.

    Just before sunset, ice on Green Lake is breaking up!!


    Image from Sunday afternoon.

    Big picture on Sunday.


Weather Observations for April 9, 2018  taken at 06:00 Hours.

2180 meters     -3, Winds were 20-25 KPH S--Whistler Peak
1835 meters     -2, Winds were 10-20 KPH S--Roundhouse
1660 meters      0, 1 cm of new, 1 cm in 24 hrs  Base 304 cm --Pig Alley
  660 meters    +5, Valley Temp, Max Temp Yesterday was +13.0, trace of precip recorded yest

    As of 07:00 Hrs this am we have overcast skies and variable visibility.



FORECAST:

Overcast conditions for today with a dry air mass in a Westerly flow aloft. The FL will rise to 2000 + meters today with periods of light precipitation.  A cold front is slated for tomorrow with winter returning to our zone. By Tuesday night the FL will likely drop to 1000 meters. A series of frontal bands will bring snow to the mountains into the weekend.
Guesstimates: 1-2 cm by Tuesday morning, 20-30 cm by Wednesday morning, 15-20 cm by Thursday, 8-12 cm by Friday morning.

    GOES IR image from this am.


    Low will send cloud our way in a dry air mass. High will bring warm temps.


    Scattered flurries but warm.

    Unsettled but mostly cloudy.

    Fronts along the coast.

    Cold front on the way.

    Moderate/Heavy snow Tuesday night.



    INFORMATION & OBSERVATIONS:

    Great light Sunday morning. Unsettled weather.

    Fairly large debris!!


    14:00 Hrs +12 Deg C at 660 meters.

    That's a large pinwheel!!

    High marking wet snow!

    Another recent slab avalanche.

    Sunday Rainbow. Lots of convective showers.



ARTICLES:

An avalanche has claimed the life of an Aspen Mountain Rescue Member: Colorado

The avalanche danger remains elevated: Montana

Wet Avalanche near: Val d'Isere

Colorado avalanche advisory warns of 'Unusually Destructive" slides after storm: CAIC

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