27 Mar 2020

March 27, 2020

    YESTERDAY:

    Front is pushing in from the South early Thursday morning.

    Clouds moved in quickly and dropped down to 1000 meters.

    Cold riding Thursday morning.

    Front moved in quickly but quite dry. Intermittent flurries in the morning.

    Thursday March 26, 2020. 12:00 Hrs. -3.5 Deg c with a 15-25 KPH SSW wind.

    Satellite image taken as same time frame as above image.

    Big picture Thursday afternoon. 

    Cloud layer kept coming down. 1 cm recorded at 1650 meters at 14:00 Hrs. Base 247 Cm.

    Mountains? What Mountains!

    Snow stake at 20:00 Hrs Thursday. 3 mm recorded in the precip gauge.



Weather Observations for March 27, 2020 taken at 06:00 Hours.

2240 meters    -8, Winds were 25-30 KPH S--Horstman Hut
2180 meters    -8, Winds were 30-40 KPH S--Whistler Peak
1860 meters    -5, Winds were 10-15 KPH SE --Rendezvous 
1835 meters    -5, Winds were 10-40 KPH S--Round House
1650 meters    -4, 3 cm in 12 Hrs, 4 cm in 24 Hrs, Base 248 cm --Pig Alley
1560 meters    -2, 2.2 mm in 12 Hrs, 2.6 mm in 24 Hrs, Base 167 cm?--Catskinner
  660 meters   +1, Valley Temp, Max temp Yesterday was +4.4, ? mm of precip yesterday.
No precip data recorded at 660 meters. No manual measurements at Catskinner.



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


FORECAST:

A weak trough in a Northwest flow aloft will slowly push through today with periods of light precipitation and a rising freezing level. The freezing level could rise to 1500  meters but will likely hover in the 1200 meter range. Low pressure moving down the coast will bring more active weather for Saturday into Monday before a possible drying trend on Wednesday into the weekend. Difficult to pinpoint the exact amount of precipitation for Saturday but looks like steady light/moderate precipitation and strong winds. The cold front & arctic front associated with the upper level low may move in fairly quickly on Saturday night with a decent amount of snow and the freezing level rising to nearly 1500 meters. If the FL stays around 1200 meters and jet flows over the area we might get more snow than some models are forecasting. Time will tell. Winter is back over the weekend and the avalanche danger will change. WB likely will close up hill routes with the storm bringing the hazard rating to at least considerable. Guesstimates: 5-10 mm by Saturday morning, 20-30 mm by Sunday morning, 15-20 mm by Monday morning.



    GOES IR image from this am.


     A weak slow moving trough for today, periods of light precipitation.





    Fronts along the coast.

      Low will send a vigorous cold front our way for Saturday.





          More weather from the upper low on Sunday.




    AVALANCHE ACTIVITY:

    An avalanche has killed a Burnaby man on Brunswick Mountain near Lions Bay. Article below.

     Recent avalanche activity in Colorado. Looks scary.                                                    CAIC Image

    Some recent activity in Colorado. Good thing there is a lock down.                             CAIC Image

    Article about good decision making below. Sierra Avalanche Centre.                               SAC Pic

    Locally, no new avalanches were observed yesterday, winds slabs are growing.


    INFORMATION & OBSERVATIONS:

    Thin clouds in the morning.

    Big contrast to last week when kids were playing here.

    Town centre is very quiet.

    Goldeneye on Fitzsimmons Creek.

    A Scottish Mist in the valley just before sunset.

    Mural on the River of Golden Dreams.



AVALANCHE CANADA MIN REPORTS:

No new MIN reports have been submitted by this am.


VIDEOS:

Time lapse, Loveland Pass: A few Tourers

Fined for boarding on closed ski area: Utah


ARTICLES:

A Burnaby man who went missing was found, killed by an avalanche near Lions Bay: Brunswick Mountain

Wind slab avalanche at Frog Lake Cliffs, Good decision making: Donner Summit, CA

Backcountry Risks Abound: Telluride

Human-Triggered avalanches rise as more people go into the backcountry: Colorado

Helicopter Dog--Inside an avalanche SAR dog first: Men's Journal

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