2 Mar 2013

It was snowing hard on Lower Insanity yesterday morning with challenging ski conditions.

Ski cutting produced some very slow wet avalanches, it was like lava flowing down the mountain. Once it started moving it would slowly entrain the snow below, it actually ended up on the side of the Dave Murray downhill run from Lower Insanity.

At 2284 meters the temperature was -3, winds were 50-80 KPH from the SSE. At 1650 meters the temperature was +.5, there was 39 cm off new snow there with 52 cm in the past 24 hours. In the valley it was +1. Observations taken at 06:00 hrs. Last night there was 30 cm recorded at the Catskinner weather plot.

For the forecast the warm front will remain in our area for the morning shifting East being replaced by a cold front later this afternoon. An upper level trough will pass through prior to the establishment of an upper level ridge for Sunday morning. So for today expect 15-20 cm by tomorrow morning. Drying out for Sunday/Monday. 5-10 cm by Tuesday morning.

For the local updated avalanche advisory: Whistler Mountain Snow Safety

Avalanche claims snowmobiler in Monti-La Sal National Forest: Utah

Jackson man dies in an avalanche: Grand Teton National Park

Another Avalanche Tragedy in Colorado: Near Silverton

Avalanches certain say experts, as pineapple express sweeps across B.C. : Canadian Avalanche Centre

It was snowing 3-5 cm per hour at times yesterday afternoon. In the alpine there was over one meter of new snow and more on the way.

 At 1650 meters yesterday afternoon the top 18 cm of snow was moist.

Weather plot at 1650 meters, Pig Alley received 13 cm from 06:00 to 14:00 hours; during the same time the Catskinner plot at 1550 meters received 8 cm yesterday.

Pig alley weather station building on my phone recorded an elevation of 1635 meters.

Looked at the snow at 1850 meters yesterday afternoon, 1 meter of new snow, found two layers of preserved stellars at 30 cm and 50 cm and plate stellar's with DF at 75cm . With the addition of the snow last night I would suspect there will be avalanches releasing size 2+, will hopefully take care of the surface hoar problem and fill in all those rocky steep entrances.

Yesterday afternoon there were 2-4 mm needles mixed in with the stealers.