Observation: Pleasant Creek

Observation Date
1/17/2019
Observer Name
John Pikus
Region
Skyline » Pleasant Creek
Location Name or Route
Pleasant Creek
Weather
Sky
Overcast
Precipitation
Light Rain
Wind Direction
Southwest
Wind Speed
Moderate
Weather Comments
At around 4pm the rain/snow line was around 8,000 feet. Light rain showers below that and light and intermittent snow above that. Winds felt light until reaching the ridgetop, where they were moderate to strong and gusty.
Snow Characteristics
New Snow Depth
4"
New Snow Density
Medium
Snow Surface Conditions
Powder
Dense Loose
Damp
Snow Characteristics Comments
Above about 8,700 there seemed to be 3-4 inches of new snow, combined from yesterday's brief storm and today's precipitation. Below 8,400 the snow was very damp and saturated from the rain. Any steeper areas had rollerballs present, and ski turns initiated medium sized wet sloughs. Above that elevation the snow stayed dry, with density decreasing with elevation. Dug a quick pit at 8,800 on a NW aspect. This was in sheltered area, on a slope of 30 degree steepness. Was able to locate the weak faceted layer 60cm below the snow surface. The snow above that was right side up, almost all 4F, increasing slightly in density down to the weak layer. The new snow appeared to be very well bonded to the old snow below. We did not experience any surface instabilities above 8,400 were the snowpack stayed dry. We did note cornice formations above north facing slopes on the ridgeline, with wind loading obvious. This was not a concern in the sheltered areas where we were travelling but I would imagine will be a serious concern up high over the next few days.
Red Flags
Red Flags
Wind Loading
Rapid Warming
Red Flags Comments
Lots of wet loose sloughs and rollerballs below 8,400 feet due to rain. I do not expect this to be a problem going forwards as temperatures drop. Winds were gusting on high ridgelines and new cornices above northern aspects around 9,500 feet were observed.
Today's Observed Danger Rating
Moderate
Tomorrows Estimated Danger Rating
Considerable
Coordinates