February 8, 2023

     AVALANCHE ACTIVITY:

      An avalanche has killed a guided ski tourer on Col du Chardonnet, FR. Article below. Net Pic

      Large Na avalanche above popular ski touring route in Austria. Article below. Gerald Lehner Pic.

     Sz 1 Sa storm slab, 2023/02/07. Wendy Thompson Hut. MIN Report below.    Alessandrovlp Pic

      Avalanche mitigation on Whistler produced Sz 1-2 Xe Xl Xt Xc Sc Soft Storm slabs.

      Avalanche mitigation on Blackcomb: Sz 1-1.5 1-Sz 2 Xe Xc Xt Xl Sc. Sa Sz 1.5 Storm Slabs

     WEATHER YESTERDAY:

      Sunrise Tuesday was at 07:37 Hrs. -4 Deg C with a 25-35 KPH ESE wind at 1835 m.

      10:00 Hrs. -4 Deg C with a 20-35 KPH ESE wind at 1835 m. Snowing.

      Tuesday February 7, 2023. 12:00 Hrs. -3 Deg C with a 30-50 KPH South wind at 1835 m.

      14:00 Hrs. -3 Deg C with a 30-70 KPH SSW wind at 1860 m. 75-115 KPH  at 2280 m.

      16:08 Hrs. -4 deg C with a 20-55 KPH SSW wind. Flurries in the air at 1860 m.

Weather Observations for February 8, 2023 taken at 06:00 Hours.

2280 meters     -12, Winds were 20-25 KPH SSW--Horstman Hut

2180 meters     -10, Winds were 25-35 KPH SW--Whistler Peak

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

1835 meters       -9, Winds were 15-30 KPH SSW--Round House

1650 meters       -8, 5 cm in 12 Hrs, 10 cm in 24 Hrs. Base 206 cm--Pig Alley

1570 meters       -7, 2 cm in 12 Hrs,   7 cm in 24 Hrs. Base 136 cm--Catskinner

  660 meters       -2, Valley Temp, Max temp Yesterday was +3.0, 10 mm of precip yesterday.

 

      As of 06:00 Hrs this am, we have 5 cm of new snow. 3.0 mm in precip gauge. Base 206 cm.

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

FORECAST:

Dirty ridging for today with unsettled weather in a Westerly flow aloft. Relatively dry day with some flurries tonight. Might see some isolated convective flurries during the day??  The FL is below surface and may peak at 800 m. Frontal band arrives tonight with light snow down to the valley. Warm front eventually brings the Fl up to 1400 m by Thursday afternoon, second frontal band arrives later in the pm with light/moderate precipitation and strong winds. The front continues into early Friday am. Should see a break in the action by sunrise with a brief period of dry weather with some sunny breaks. Next frontal band arrives by Friday around noon with light snowfall into Saturday pm. Dries out late Saturday pm with overcast skies and some flurries. Dry early Sunday am with another frontal band arriving Sunday pm, intensifying Sunday night. Winter is back and the POW train continues into Monday. Dries out by Tuesday/Wednesday. Guesstimates: 1-4 cm by Thursday am, 18-22 cm by Friday am, 8-12 cm by Saturday am, 2-4 cm by Sunday am, 12-18 cm by Monday am, 8-12 cm by Tuesday am.

      GOES IR IMAGE FROM THIS AM.

      WINDY IMAGE 2023/02/08. 05:00 Hrs.

        Cool dirty ridge for Wednesday. Mostly overcast with some breaks. Deep low to the North.

      Dries out Wednesday, clouds with some sunny breaks. 

     Westerly flow aloft.

        Low will usher in a warm front with a trailing cold front Thursday. Above average temps.

      Periods of light precipitation Thursday.

      Aleutian Low will bring more snow for Friday with cooler temperatures.

      Two frontal bands on Friday with light/moderate precipitation.

          High pushes back Saturday,  but low likely to win out with more precipitation. Cooler.

      Periods of light precipitation Saturday, dries out in the pm.

      Periods of light/moderate precipitation Sunday. Dry in the early am. 

      Light snowfall Monday with drier weather in the late pm.

      INFORMATION & OBSERVATIONS:

      Snow line was at 900 m at 09:00 Hrs. Snowing lightly.

      Avalanche Control Tuesday am.

     JC Chair was closed for a while, dud on Pakalolo tram. Have to wait 1 hour before eliminating the issue.

      Powder Pigs were out in force.

      Spanky's was a popular spot.

      Could have been a bit deeper but pretty nice snow.

      Heading up to Lower Disease Ridge.

      Nice snow in 7th Heaven once it opened.

      Convective Flurries at 13:15 Hrs.

      Too Much fun on a POW Day.

      A large sucker hole moved in around 14:00 Hrs.

      5 cm of new snow as of 14:30 Hrs. Base 138 cm at 1570 m.

     The Rooster!!

      Patches of Blue at 16:15 Hrs. With power flurries moving up the valley.

FROM AVALANCHE CANADA:

 

Travel and Terrain Advice

Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.

As the storm slab problem gets trickier, the easy solution is to choose more conservative terrain.

Be especially cautious as you transition into wind affected terrain.

CONSIDERABLE--Sea to Sky Advisory available top right sidebar.

LOCAL MIN REPORTS:

Close call on Brohm Ridge: Feb 7, 2023

Storm Slab at Wendy Thompson Hut: Feb 7, 2023

Fresh Snow: Feb 7, 2023

Depencier Lake: Feb 7, 2023

SHORT CLIPS:

Skin Transition: Efficient Way 

Touchy Conditions: At least he could sled out of there.

Large Slab Avalanche: France

Another Day at the Office: Powder Patrol

ARTICLES:

Guided ski tourer killed, 1 seriously injured in Hautes-Alpes avalanche: France

 Large avalanche on popular ski touring route: Austria

10 of the most sustainable ski resorts in the world: CNN Travel

Powerful avalanches in the TOPR Lens: Tatras Mountains

Eleven Dead in avalanches in the Alps: PlanetSki

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