Observation: Mt Aire

Observation Date
2/18/2019
Observer Name
Bruce Tremper
Region
Salt Lake » Parleys Canyon » Mt Aire
Location Name or Route
Mt. Aire - Lambs Canyon
Weather
Sky
Scattered
Wind Direction
Northeast
Wind Speed
Light
Weather Comments
Quite cold but mostly sunny in the morning turning to cloudy with snow showers in the late after noon.
Snow Characteristics
New Snow Depth
4"
New Snow Density
Low
Snow Surface Conditions
Powder
Snow Characteristics Comments
Not much to report avalanche-wise but I thought I would give a quick ob from an afternoon of skiing many of the slopes around and north of Mt. Aire and farther east down into Lambs Canyon. There's only about 2-6 inches of new powder on top of the rain crust from a few days ago. Below about 7,500-8,000' the rain crust is quite a bothersome zipper crust but above that elevation you don't feel it and the turning is quite nice on fast, shallow powder. I can't believe the number of people that have been skiing in that area. There's lots of tracks on most slopes but it's a huge area and it's easy to find places with untracked especially moving east on the ridge and descending into Lambs Canyon.
Red Flags
Red Flags
Wind Loading
Red Flags Comments
My only concern in the areas was some of the fresh wind deposits on steep slopes along the upper ridges. We backed off going up one steeper ridge because of shallow, cracking, stiff wind drifts. It looked like many skiers and boarders were riding the wind slabs without triggering anything so it seems like they are settling out but combined with the steep, high-consequence terrain (lots of trees to hit) it kind of spooked me. We found lots of good turning on non-windloaded terrain. I was out for a day with friends so I did not take the time to dig any pits but probed with my ski pole for much of the day and the underlying snow seemed fairly solid and settled. Lots of surface hoar on the surface and the clear skies and cold temperatures are faceting all the surface snow on to of the rain crust so we will really have to pay attention to this layer after it gets buried.
Avalanche Problem #1
Problem
Wind Drifted Snow
Trend
Decreasing Danger
Problem #1 Comments
See comments above. Moderate danger rating is for fresh wind slabs along the wind exposed ridges. Everything else seems low danger.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Moderate
Coordinates