28 Apr 2018

April 28, 2018


    AVALANCHE ACTIVITY:

    Rainbow Glacier 2 days ago.                                                                                 Toby Salin Photo

    Active cycle Thursday evening. A couple of Sz 2.5 and a Sz 3 outside the ski area boundary.

    Phalanx Ridge.


    Climax avalanche off Phalanx Ridge.

    Wet slide in Garibaldi Provincial Park from Thursday evening.

    Slab avalanche from a wet loose avalanche in Bony Basin off Phalanx Ridge.

    Very active cycle in the valley.

    Numerous avalanches in the past few days.


    YESTERDAY:

    Glaze in the morning but it softened up quickly.

    Weather was awesome all day.

    Weather moving in from the South in the morning!

    More high cloud later in the day.

    Friday afternoon.

    Big picture on Friday afternoon.


Weather Observations for April 28, 2018  taken at 06:00 Hours.

2240 meters     -1, Winds were 15-20 KPH SSW--Horstman Hut
1860 meters    +1, Winds were   5-10 KPH S      --Rendevous
1550 meters    +2, 0 cm of new snow, 0 cm in 24 hrs  Base 219 cm --Catskinner
  660 meters    +8, Valley Temp, Max Temp Yesterday was +26.3, 0.0 mm of precip recorded yest


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



FORECAST:

A weak slow moving upper low will bring cooler temperatures and periods of light precipitation in a Southeasterly flow aloft. The FL should remain around 1800 meters, dropping to 1600 by tonight.
Sunday is looking like a similar day with less precipitation and the FL eventually rising to 2000 meters as a trough pushes through our zone. The trough will be slow to exit the area bringing mostly overcast skies and the occasional rain shower for Monday. The ridge rebuilds for Tuesday with unsettled weather into next weekend.
Guesstimates: 5-10 mm of rain with some snow eventually occurring at 1550 meters. 2-4 cm by Sunday morning . 4-6 mm of precipitation with a trace-2 cm by Monday morning. 1-3 mm of precipitation by Tuesday morning.

    GOES IR image from this am.


    Cooler than yesterday with mostly overcast skies and some eventual showers.

    Low spinning cloud at us.

    Showers this afternoon.

    Fronts along the coast.


    More cloud and showers!


   On the edge of the high and low.


    INFORMATION & OBSERVATIONS:

The snowpack is much more reactive to the north of the Lillooet valley and one ride to the south of it. Lots of slabs out on Mar 22 layer and many of them stepping to ground on solar aspects. Standard travel routes around Pebble and Harrison huts have been hit by the near climax avalanche cycle over the last 36 hours. The snowpack is much more reactive to the north of the Lillooet valley and one ride to the south of it. The result of a bombing run today on the Bridge River Main FSR.
Photo and comments from Conny Amelunxen.


    Cornice drop Rainbow 2 days ago.                                                                                                        Toby Salin Photo


     Alpine is hot and reactive.

   Closed!!

    Old and New, amazing how stable 172 cm can be.

    A gaggle of snow guns.

     Cornice control with a slab release as well.

     Returning Ski Tourers.

    Great Entertainment!!

   Lots of plowing to do!!

    23:00 hrs Friday night.




Latest Avalanche Canada MIN Report:



From South Coast Touring:
Reid Madiuk
April 26
Took a poke around the Warren glacier yesterday. Surprisingly all aspects in the shade from 1500m up were frozen in the morning. South and east aspects were quite isothermal in the sun. Not all eastern aspects have slid yet. West aspects had a nice smooth melt freeze going on. Good afternoon corn skiing on a supportive crust. All true north aspects above 2000m were actually in quite good shape. Pressed cold snow. No melt freeze. North side of Garibaldi was in good shape. Schrund was well filled in. Easier to climb up the right side. Not the left shoulder.


ARTICLES:

Spring avalanche conditions raise backcountry risk: CBC News

Final Body found after fatal avalanche: Switzerland

Bodies of two missing skiers found in French Alps: Areches-Beaufort

An avalanche sweeps away a snowboarder, Pilot first on scene to start digging: New York Times

Search for missing skier to resume: Montana

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