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Observation: Mill Hollow

Observation Date
3/13/2024
Observer Name
Schumacher
Region
Logan » Logan Dry Canyon » Mill Hollow
Location Name or Route
Logan Peak, Logan Dry to Mill Hollow
Weather
Sky
Broken
Precipitation
Light Snowfall
Wind Direction
Northwest
Wind Speed
Light
Weather Comments
Generally Broken skies with alternating short periods of sunshine and very light snowfall (no accumulation) throughout the day. Light NW winds with periods of moderate. Above about 8500', skies were obscured and visibility was poor as the cloud ceiling was around 8000-8500'. However this obscured cover was in and out with short periods of increased visibility throughout the day. Air temperature was noticeably colder above about 7500'.
Snow Characteristics
New Snow Depth
3"
New Snow Density
Low
Snow Surface Conditions
Powder
Wind Crust
Melt-Freeze Crust
Snow Characteristics Comments
Estimated 0.5" new snow near the dry canyon TH and at low elevations increasing to about 3-4" of new snow at upper elevations with some small graupel noted on top. New snow was significantly drier above about 7500' on ascent and the snow at upper elevations was dry and light and increased in moisture and density as we descended. At upper elevations, the snow surface was more variable with windward areas buffed and leeward areas loaded with soft drifts and wind skins and large cornices. The 8000-8500' elevation band seemed to hold the most snow in this area from this exiting storm. Generally, new snow was sitting on a supportable 1-3" melt freeze crust that was capping about 6-12" of dry to moist snow on a stout crust below. This surface crust varied with westerly aspects having a more breakable and thinner surface crust and a wind skin on the new snow, lower elevations in Mill hollow had a very breakable decomposing crust by mid day that made travel difficult, and upper elevation northerlies had a supportable crust that was bondning well to the new snow.
Red Flags
Red Flags Comments
No red flags noted. Stability appeared very good throughout the day.
Today's Observed Danger Rating
Low
Tomorrows Estimated Danger Rating
Low
Coordinates