April 25, 2017

    AVALANCHE ACTIVITY:

    Yesterday AC produced some Size 1 cornice debris slides. Moist snowballing on solar aspects.

    You could see some solar activity on the Tantalus Range yesterday afternoon.


   YESTERDAY:

    Mostly cloudy Monday morning April 24, 2017.

    A few breaks but multiple layers of cloud.

    Image from Monday morning.

    Much nicer in Vancouver yesterday.

    Squamish Monday afternoon.

    More breaks later in the day with some showers.

    There were some dark moisture laden clouds around yesterday at days end.

    Sunset Monday night.

Weather Observations for April 25, 2017 taken at 06:00 Hours.

2240 meters      -4, Winds were 15-25 KPH SE --Horstman Hut 
1860 meters      -2, Winds were 10-15 KPH SE --Rendevous
1550 meters       0, trace of new snow, trace in 24 hrs, 254 cm Base, RH 99%  --Catskinner 

  660 meters     +4, Valley Temp, Max Temp Yesterday was +14.4, 0.8 mm of Precip recorded yest



FORECAST:

An upper trough will bring showers to the area this morning in a Westerly Flow aloft. We may see some breaks this afternoon with more showers by this evening, becoming steadier as the next weak frontal band moves onshore into Wednesday. The FL will spike at around 1700 meters today, dropping to around 1400 meters tonight and hovering in the 1600 meter range for Wednesday. Thursday and Friday are looking unsettled with spring like conditions. Beyond that the models are inconsistent.
Guesstimates: 3-5 cm by Wednesday morning above 1600 meters, 4-8 cm by Thursday morning above 1500 meters, 1-3 cm by Friday morning above 1600 meters.

    GOES IR image from this am.

   Frontal Bands on then move.

    Overcast this am as a weak frontal band is moving onshore.

   Cloudy for Wednesday morning/afternoon, likely some breaks by the evening.

   Unsettled Thursday with a mix of sun and cloud.

   High builds for Friday.

    INFORMATION & OBSERVATIONS:

   Awesome colours in the city.

    Porteau Cove.

    Tantalus range yesterday afternoon.

    Late day sun an Mount Currie                                                                                 Debbie Lloyd Image


ARTICLES:

Skier Triggered avalanche at Alta: Utah

Snoqualmie Pass Forecast Discussion: NAC

More information on the avalanche that killed 2 teenagers: Romania