19 Feb 2018

February 19, 2018

     AVALANCHE ACTIVITY:

   An avalanche in Val d"Isere, France has killed two skiers. Story in article section.    Net Pic

    An avalanche on the Col de Fenestral in Switzerland has injured 2 ski tourers. Article below.

           An avalanche has killed an ice climber in Slovakia. Information below.    Net Pic

    Recent avalanche at Hatcher Pass. Forecast in article section.                                    HPAC Pic

    Locally, AC produced a few Sz 1-1.5 with Xe Sc ssl's, windslabs. 20-60 cm crowns. Ltd control.


    YESTERDAY:

    Sunday morning, at 08:00 Hrs at 1835 meters it was -20 with 25-40 KPH winds out of the NNE.

    Peak chair closed, at 10:00 Hrs, -23 with 60-95 KPH winds out of the NW. -42 wind chill factor

    At 2240 meters at 10:00 Hrs -23 Deg C with a NE wind 50-70 KPH . Lift was closed.


    Unsettled weather on Sunday. Blowing snow on the lake.

    Rainbow Glacier NE aspect.

    Looking cold up there. At 15:00 hrs it was -21 Deg C at 2240 meters.

    Armchair, cleared up later in the afternoon.

    Alpin glow Sunday.



    Sunday afternoon.

    Big picture Sunday afternoon.




Weather Observations for February 19, 2018  taken at 06:00 Hours.

2180 meters   -21, Winds were 35-60 KPH NW--Whistler Peak
1835 meters   -20, Winds were 15-30 KPH NE --Roundhouse
1660 meters   -19, 0 cm of new, 0 cm in 24 hrs  Base 304 cm --Pig Alley
  660 meters   -16, Valley Temp, Max Temp Yesterday was -3.5, 2.0 mm of precip recorded yest

Wind Chill Today: -21 with a 50 KPH wind brings the wind chill too -37 at 2180 meters. Dress warm if venturing into the alpine.

    As of 07:00 Hrs this am we have clear skies and unlimited visibility.

FORECAST:

Ridge of high pressure will bring cold clear weather to the area today in a Northerly flow aloft.
Some cloud will spill into the area on Tuesday with unsettled cold weather. The low off the coast will bring mostly cloudy skies for Wednesday morning, becoming unsettled by Wednesday afternoon. More sun for Thursday morning before clouds begin to form in the afternoon. Frontal bands are expected to return for Friday into Saturday with more snow and seasonable temperatures.
Guesstimates: No significant snowfall until Friday.


    GOES IR image form this am.


     Arctic front will bring cold temps for today.

    Bluebird.

    Winds will abate today.

    Fronts along the coast.

    Low moving down the coast of Vancouver Island.


    INFORMATION & OBSERVATIONS:

    Sunday morning, the temperature in the valley at 08:00 Hrs was -9 with NE winds . Wind Chill -17

    At 10:30 unsettled with -19 at 1835 meters with a wind out of the NNW at 10-35 KPH.

    Nice conditions in the valley. -7 at 14:00 Hrs.

    The wind has affected the snow.

    Spindrift on Rainbow.

    Alpine lifts remained closed Sunday.

    Strong winds on Green Lake.

    Blowing snow in the valley.

    Clingon Cloud.


Recent Avalanche Canada MIN Reports:

Mt Seymour

Metal Dome

Hanging Lake 

Cassiope

Vantage Ridge



From South Coast Touring:

Jacob Lagercrantz
February 18 at 10:43pm
Skied Cassiope today. Very reactive in the trees around 1200m. The latest 20-30cm on every convex feature would slide at the slightest touch. Snow was slightly better bonded to the crust up around 1800m but not much.

From Cassiope                                                                                        Jacob Lagercrantz Image


ARTICLES:

Two skiers killed on closed piste by an avalanche: Val d'Isere

An avalanche has killed an ice climber in the Tatras Mountains: Slovakia
 
Warning after Swiss avalanche injures 2 ski tourers: Valais

Hatcher Pass Avalanche Forecast: Alaska

Avalanche danger now High in Western Montana: Missoula

18 Feb 2018

February 18, 2018


    AVALANCHE ACTIVITY:

    An avalanche on Ralph's Slide in the Jackson Hole Backcountry has killed a Utah man.  Net Pic

    An avalanche has killed 2 mountaineers on Grignetta in Lecco, Italy. Info below.      Net Pic

    An avalanche on Pirin Mountain has claimed a mountaineer.  Story below.                   Net Pic


    Information on avalanches in Utah, Persistent Slab.

    Locally, AC produced mostly Sz 1 soft slabs Xe Sc. A few Sz 2 storm slabs as well. Sz 1-2 Na.


    YESTERDAY:

    Snowing and blowing yesterday morning.

    Dumping in the valley Saturday morning.

    Snow conditions were awesome yesterday.

    Tree skiing was off the wall.

    Creekside.

    Very few people were skiing to the valley.

    Snowing hard in the valley.

    Saturday afternoon.

    Big picture Saturday afternoon.


Weather Observations for February 18, 2018  taken at 06:00 Hours.

2180 meters   -22, Winds were 40-80 KPH NW--Whistler Peak
1835 meters   -19, Winds were 30-40 KPH NNW --Roundhouse
1660 meters   -18, 2 cm of new, 27 cm in 24 hrs  Base 308 cm --Pig Alley
  660 meters     -8, Valley Temp, Max Temp Yesterday was +1.0, 18.9 mm of precip recorded yest

-22 with a 60 KPH wind brings the wind chill factor to -39. Dress warm if going to the alpine.
-19 with a 30 KPH wind brings the wind chill factor to -31. Dress warm if going to treeline.

Winds at 2180 meters were as high as 100 KPH last night.

    As of 07:00 Hrs this am we have broken cloud and variable visibility.

FORECAST:

An upper level trough will bring unsettled weather this am before we get some clearing with cold temperatures in a Northerly flow aloft. Clear cold conditions will prevail until Wednesday when a weak short wave trough will push through. Cold outflow winds for the next few days, dress warm!!
Guesstimates: 4-6 cm by Thursday morning.



    GOES IR image from this am. Cloudy this am, clearing this pm.


     Cold air from the Arctic front.

    Some flurries possible for this am.

    Winds may ease up later today.

    Fronts along the coast.



    Cold & clear Monday.


    INFORMATION & OBSERVATIONS:

    Nester's Weather Station at 660 meters yesterday morning. 18.9 mm recorded there yesterday.

    Catskinner weather plot, 1550 meters yesterday afternoon. 25 cm from 06:30-14:30 hrs.

    Pig Alley 1650 meters received 25 cm yesterday. base was at 313 cm.

    Pig alley yesterday afternoon.

    Soft slabs early in the morning.

    A good sign to heed.

    Dumping yesterday afternoon.

    Saturday at around 17:00 hrs.

    Looking Northeast at the same time frame as above image.


                      Hanging Lake Area Yesterday.                                     JD Disney Image



Recent Avalanche Canada MIN Reports:

Whistler & Duffey Area

Hanging Lake

Vantage Ridge





ARTICLES:

Utah man dies in Side Country avalanche: Wyoming

Avalanche kills two Mountaineers on Grignetta in Lecco.: Italy

An avalanche has killed a mountaineer on Pirin Mountain: Bulgaria

Outdoor enthusiast urged to exercise caution in Avalanche Terrain: B.C. Minister of Public Safety

Avalanche Canada asking back country enthusiasts to err on the side of caution this weekend: Kamloops