Observation: Brighton Perimeter

Observation Date
4/11/2022
Observer Name
Champion
Region
Salt Lake » Big Cottonwood Canyon » Brighton Perimeter
Location Name or Route
Hidden Canyon
Weather
Sky
Overcast
Precipitation
Light Snowfall
Wind Direction
Southwest
Wind Speed
Moderate
Weather Comments
Greybird day with moderate winds, and a bit of light snowfall/graupel early afternoon. Even though winds were moderate to high, there appeared to be very little transport occurring.
Snow Characteristics
Snow Characteristics Comments
Firm, generally unpleasant skiing.
Comments
Headed out for a pre forecast shift walk to check out the snow surfaces before this next storm system. While it was obvious that the front was moving in, given the elevated winds, and gloomy weather in all directions, there was very little transport occurring. I assume the lack of transport was due to the variety of firm snow surfaces that currently cover the range. Almost every aspect that I covered possessed a solid frozen snow surface, or windblown crust. The skiing outside of groomers was not very pleasant. When I moved into Hidden Canyon I was able to find a few small protected areas in the trees that still held a few cms of soft graupel at or near the snow surface. While I was surprised to still find soft, intact graupel, this was not very widespread or connected. Still, something to be aware of on mid and upper elevation protected terrain features.

My main concern is how widespread the firm surfaces are in the backcountry, the next storm is supposed to come in the general cold with very little prefrontal moisture. I think these firm surfaces will give a large variety of good bed surfaces for the new, cold snow to run far and fast on. I didn't see a huge difference in aspects, other than southerlies are beginning to look a bit grimmer and possess some dirt at mid and lower elevations. Otherwise, the firm snow surface was pretty widespread on all aspects of the compass. I think the avalanche danger will spike rapidly with the incoming storm.
Photos of incoming storms and snow coverage.
Photos of snowpit on a Northeast Aspect in Hidden Canyon at 9580'. Can see upper layer of graupel sitting above a firm P hard slab.
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
Considerable
Coordinates