7 May 2018

May 7, 2018


    AVALANCHE ACTIVITY:

    Natural cornice release Saturday night, no entrainment, just a trough.

    Isothermal snow pack has been stable but rain on Wednesday could change hazard once again.


    YESTERDAY:

    Mostly cloudy early Sunday morning.

    As the morning progressed the clouds did dissipate.

     Later in the afternoon.


    18:30 hrs in the valley.

    Sunset was at 20:38 Hrs Sunday evening.



    Sunday afternoon.

    Big picture on Sunday.


Weather Observations for May 7, 2018  taken at 06:00 Hours.

2240 meters    +2, Winds were 20-30 KPH SE--Horstman Hut
1860 meters    +5, Winds were 10-20 KPH SE--Rendevous
1550 meters    +5, 0 cm of new snow, 0 cm in 24 hrs  Base 195 cm --Catskinner
  660 meters    +6, Valley Temp, Max Temp Yesterday was +22.5, trace of precip recorded yest

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


FORECAST:

Weak upper level trough will exit our area this morning with a shortwave ridge building in a West-Southwest flow aloft. Unsettled this morning, mostly overcast, with sunnier weather by this afternoon. The FL will rise to 3000 meters with a chance of some isolated showers. Mostly sunny on Tuesday with some cloud development before a a cold front moves through the zone with some moderate precipitation. Wednesday will be overcast and light rain will fall for most of the day. Thursday is looking unsettled as the front leaves the zone and a ridge begins to build for Saturday into Sunday.
Guesstimates:  trace-2 mm by Tuesday morning, 10-15 mm by Wednesday morning, 4-8 mm by Thursday morning (the FL is supposed to drop to 1800 meters by Wednesday night , may get a few centimetres in the alpine)


    GOES IR image this am.


    Weak High pressure today with some cloud in the mix.

    Looking like a nice day.


    Sunnier in the afternoon.

    Fronts along the coast.

    High again for Tuesday.


    INFORMATION & OBSERVATIONS:

    Horstman Creek.

    Skunk Cabbage is thriving.

   Rain showers at 18:00 hrs.

   Double rainbow.

    Unsettled in the alpine Sunday evening.


From South Coast Touring:


Mike Jones
May 6 at 8:45pm
Set out for the Garibaldi neve traverse on Saturday (northbound). Snow is patchy from the Elfin parking lot for the first few hundred meters and melting fast. Warm temperatures made for a challenging traverse out to ring creek on slushy, isothermal snow. Everything under the gargoyles has slid. Once you're below and to the north of the avi debris under the gargoyles, getting down to the creek involves descending another steep slope. Take care here; recent melting has created incipient glide cracks and cavities covered by thin snow bridges. 
We weren't happy with any of the routes down to the creek, and ultimately decided to camp overnight and head back out via Elfin today. The snow didn't freeze or set up to any significant extent overnight (at least at ~1400m).



ARTICLES:

Roads in French Alps buried under 15 meters of snow: Cormet de Roseland

All Melt, No Freeze: Spring Conditions

Daily Melt Freeze Cycles: Spring Conditions

Parks Canada Advisory: Jasper National Park

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