April 10, 2023

      AVALANCHE ACTIVITY:

    Large avalanche on the Armancette Glacier has killed 4. Articles below @domaineskiable Pic

      Upper area of the avalanche on Dome de Miage.  Possibly 9 injured!          @domainskiable

      Another perspective, very popular ski touring area.                            Xavier Roseren Image

           Yet another perspective.                                                                  Image from Social Media

      Sz 2.5 Sa Melissa's Run, Duffy Zone. 2023/04/08. MIN Report Below.           Kubismo Pic

      Avalanche mitigation on Whistler produced Sz 1 storm slabs  Xl, Xe, Sc. Sunday am.

      Whistler performed some late PM AC in the alpine.

      Avalanche mitigation on Blackcomb produced Sz 1-1.5 soft storm slabs. Xe, Xt, Xl, Sc.

     Winds were reloading start zones after AC was completed.

      WEATHER YESTERDAY:

      Sunrise Sunday was at 06:31 Hrs. -2 Deg C with a 15-40 KPH ESE wind at 1835 m. S-1

    08:00 Hrs. -2 Deg C with a 20-40 KPH ESE wind at 1835 m. S-1. 90-105 KPH SE wind at 2180 m

     10:00 Hrs. -2 Deg C with a 25-50 KPH ESE wind at 1835 m. S-1. 50-65 KPH SE wind at 2180 m

      Sunday April 9, 2023. 12:00 Hrs. -2 Deg C with a 30-65 KPH ESE at 1835 m. S-1.

      14:00 Hrs in the valley. Raining hared, temperature + 4 deg C  at 660 m.

     16:00 Hrs. -1 Deg C with a 20-60 KPH ESE wind at 1835 m. S+1

 

Weather Observations for April 10, 2023 taken at 06:00 Hours.

2280 meters     -9, Winds were 20-30 KPH S--Horstman Hut

2180 meters     -7, Winds were 10-15 KPH S--Whistler Peak

1860 meters     -7, Winds were 10-15 KPH SE--Rendezvous  

1835 meters     -6, Winds were 10-15 KPH SE-Round House

1650 meters     -6, 12 cm in 12 Hrs, 23 cm in 24 Hrs. Base 278 cm--Pig Alley

1570 meters     -5,   6 cm in 12 Hrs, 14 cm in 24 Hrs. Base 180 cm--Catskinner

  660 meters      0, Valley Temp, Max temp Yesterday was +5.8, 19.9 mm of precip yesterday.

      As of 06:00 Hrs we have 17.1 mm in precip gauge. 12 cm of new snow. Base 278 cm.

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

FORECAST:

Low will send cloud into our zone today in a Southwesterly flow aloft.  Some sunny breaks in the mix. May see a few flurries this afternoon. The FL is hovering around 900 m and may rise to 1400 m during the day.  A weak frontal band arrives early Tuesday am with periods of light precipitation in the am. Unsettled in the pm with a mix of sun and cloud and some flurries in the pm. Ridging for Wednesday will bring sunny skies. weak impulse of precipitation for Thursday with snow showers and overcast skies. Dirty ridging for Friday with a mix of sun and cloud. Low will send cloud into the area for Saturday. Guesstimates: trace-2 cm by Tuesday am, 2-6 cm by Wednesday am. 0-trace by Thursday am, trace-3 cm by Friday am, 0 cm by Saturday am, 0 cm by Sunday am.

      GOES IR IMAGE from this am.

      WINDY IMAGE 2023/04/10. 05:00 Hrs.

        Weakening upper low will bring mostly overcast skies for today. Warm.

      Dry Monday with the chance of a flurry later in the pm.

      Southwesterly flow aloft.

     Weak frontal band in the am, may see some dirty ridging for the pm on Tuesday. Cooler in pm.

      Periods of light precipitation on Tuesday.

         Ridging strengthens on Wednesday with sunny skies. Cool in the am, warms up in pm.

      High pressure Wednesday with sunny skies.

          Weak trough with mostly overcast skies and some flurries. Seasonable temps.

      Periods of light precipitation Thursday.

      Dirty ridging on Thursday.

      Low will send cloud into our zone for Saturday.

      INFORMATION AND OBSERVATIONS:

      08:15 Hrs upload. +3 deg C at 660 m.

      Strong alpine winds in the am. 55-85 KPH SE wind at 2180 m at 09:30 Hrs.

      There was a moist snow line at 1100 m.

      The actual time was 09:58 Hrs. The Swiss time piece was losing time. Eventually readjusted.

      Nice soft conditions in the tree line.

     Snowing S-1 to S+1 in the am.

      Tree skiing was fun. Tree bombs in lower elevations.

      Wind sculptured snow.

      Very wet in the valley.

      Raining at 1010 m

      Wet snow at 1200 m. FL went up to 1600 m.

      At 14:00 Hrs at 1570 m 8 cm of new snow (9.4 mm) Base 178 cm. At 1650 m 11 cm of new.

      15:15 Hrs. Early closure. -1 Deg C with a 45-75 KPH South wind at 1860 m.

      Awesome day if you were a beaver.

FROM AVALANCHE CANADA:

Travel and Terrain Advice

Continue to make conservative terrain choices while the storm snow settles and stabilizes.

Avoid lee and cross-loaded terrain.

Seek out sheltered terrain where new snow hasn't been wind-affected.

Minimize your exposure time below cornices.

CONSIDERABLE--SEA TO SKY ADVISORY available top right sidebar.

LOCAL MIN REPORTS:

Melissa's Run Sz 2-3: April 8, 2023

Full path avy in Melissa's run Duffy Zone: APRIL 8, 2023

SHORT CLIPS:

Large Fatal Avalanche April 9, 2023: French Alps

Nice Air: The Curl

Very Slow Moving: Wet Avalanche

Small Pocket: Slab Avalanche

Slough Management: Steep Terrain

ARTICLES:

Avalanche kills at least 6 people: France

Four dead, two missing in an avalanche in the French Alps: Armancette Glacier

Fatal avalanche on the Domes de Miage: Pistehors.com

Four killed, 9 injured in French Alps: Armancette Glacier

Avalanche warnings issued for Northern Utah Mountains : UAC

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