February 28, 2023

       AVALANCHE ACTIVITY:

      Body of snowmobiler recovered Feb 27, 2023. La Manga Pass avalanche. Article below. CCSAR Pic

      An avalanche has killed a soldier on Kebnekaise Mountain, SE. 2023/02/21 Article below. 

     Nc (natural cornice release) Sz 1.5 Vista Bowl 2023/02/27.                          Steve Whittall Image

       Avalanche mitigation on Whistler produced some Sz 1 wind slabs Xe, Xc. A few Sz 1.5 Xc.

      Xe Whistler Peak Monday am.

      Powder burns top right from avalanche mitigation Flute Monday.

     Avalanche control on Blackcomb with limited results. A Sz 1 & Sz 1.5 Xh, Xe. storm slabs.

      Xe Blackcomb Bowl Monday am. Powder burn on Whiplash.

      Old dry loose from Sunday.

      WEATHER YESTERDAY:

      Sunrise was at 07:00 Hrs Monday am. -16 Deg C with a 5-10 KPH South wind at 2280 m.

     08:00 Hrs. -13 Deg C with a 0-5 KPH ESE breeze at 1860 m.

      10:00 Hrs. -11 Deg C with a 10-15 KPH SE wind at 2280 m.

      Monday February 27, 2023. 12:00 Hrs. -9 Deg C with a 5-10 KPH NNW wind at 1835 m.

      14:00 Hrs. -8 Deg C with a 0-5 Variable wind at 1860 m.

      16:00 Hrs. -10 Deg C with a 5-10 KPH South wind at 2280 m.

Weather Observations for February 28, 2023 taken at 06:00 Hours.

2280 meters     -12, Winds were 15-20 KPH SE--Horstman Hut

2180 meters     -10, Winds were 30-40 KPH ESE--Whistler Peak

1860 meters     -11, Winds were     0-5 KPH SSW --Rendezvous  

1835 meters     -11, Winds were   5-10 KPH NE--Round House

1650 meters     -10, 3 cm in 12 Hrs, 3 cm in 24 Hrs. Base 234 cm--Pig Alley

1570 meters     -10, 2 cm in 12 Hrs, 2 cm in 24 Hrs. Base 163 cm--Catskinner

  660 meters       -4, Valley Temp, Max temp Yesterday was 0, 0.0 mm of precip yesterday.

      As of 06:00 Hrs this am we have 3 cm of new snow. 1.9 mm. Base 234 cm.

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

FORECAST:   

The lingering low will send periods of light snow today in a Southerly flow aloft. The FL is below surface and should remain below or at surface for the day. Snow should ease off by tonight with a weak upper level high bringing dirty ridging for Wednesday. Mostly overcast with the chance of some breaks. Dry and cold until Wednesday night when a frontal band arrives with more snow to the valley. Front moves through Thursday with light snowfall to the valley. Dries out a bit in the pm with some sunny breaks and flurries. Lingering cloud and flurries into Friday. Periods of light snow Friday with another frontal band for Saturday. Unsettled Sunday with a mix of sun and cloud with intermittent snow flurries. Guesstimates: 3-6 cm by Wednesday am, 7-11 cm by Thursday am, 9-13 cm by Friday am, 1-3 cm by Saturday am, 7-11 cm by Sunday am.

      GOES IR IMAGE from this am.

      WINDY IMAGE 2023/02/28. 05:00 Hrs.

        Lingering low will bring light snow for Tuesday. Seasonable temperatures.

       Periods of light snowfall Tuesday. 

       Southerly flow aloft.

     Weak upper level ridge for Wednesday with dry overcast skies. Cool in am, seasonable pm.

       Dry Wednesday, frontal band arriving Wednesday night.

       Front pushes through Thursday. Periods of light snow-unsettled in the pm. Seasonable temps.

      Periods of light snowfall Thursday.

       Weak frontal band on Friday from the Aleutian low. Just below seasonable temps.

      Periods of light snow Friday.

       Periods of light snowfall Saturday.

     INFORMATION & OBSERVATIONS:

      Late upload!

      Morning lenticular clouds.

      7Th Heaven was busy!

      Enjoying some Monday Pow.

     There were times the visibility was challenging. JC in the am.

      Very nice snow!!

      Mount Cayley.

      Showcase T-Bar was just a bit busy!

      Powder to the People!

     Became overcast with light flurries around noon.

      Very overcast later in the pm.

      Thin upper cloud with rising valley cloud in the pm.

FROM AVALANCHE CANADA:

Travel and Terrain Advice

Don't be too cavalier with decision making, storm slabs may remain sensitive to human triggering.

Carefully monitor the bond between the new snow and old surface.

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

Don't let the desire for deep powder pull you into high consequence terrain.

Use extra caution around cornices: they are large, fragile, and can trigger slabs on slopes below.

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

LOCAL MIN REPORTS:

Lizzie Creek: Feb 27, 2023

SHORT CLIPS:

Powder: Japan

Skate Sharp: Serious Edging

Keeping the nose up: Sled Wheelie

Night operation's-searching for Avalanche Victim: Switzerland

ARTICLES:

A soldier has been killed in an avalanche on Kebnekaise Mountain: Sweden

Body of snowmobiler buried in La Manga Pass avalanche recovered: Colorado 

Body of snowmobiler found 2 days after avalanche: Southern Colorado

Four burials, two deaths, one missing in San Juan Avalanches: Colorado

Avalanche experts demonstrate snow stability tests to gauge avalanche risk: Colorado

State could be soon using new avalanche forecasting model: Colorado

US 189 closed as crews clean up avalanche near Deer Creek Reservoir: Utah

French Hospital inundated with 80-100 ski accidents per day: France

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