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Castle Lake Snowpack
Location Name:Castle Lake
Date and time of observation:Sun, 01/20/2019 - 3:45pm
Observation made by:Forecaster
96067 Mount Shasta , CA
United States41° 13' 21.9252" N, 122° 23' 16.9404" W
- Lake level area hosts semi-soft and saturated snow. Castle Lake itself is still frozen over, but with 6-8 inches of slush on top of hard ice. Despite mushy conditions on the lake, it is still supportable with skis on. Walking on the lake would result in wet feet.
- Rain runnels dominate the Castle Lake area.
- Two feet of consolidated snow rests on top of old snow surfaces.
- Breakable crust of all forms dominates and is widespread. Icy and sometimes breakable crust will be found on wind exposed ridgelines.
- Many cornice failures have occurred along the Middle Peak ridgeline
- Some loose-wet debris was observed below the steep, northerly facing slopes behind the lake.
- Old glide cracks were observed on Middle Peak.
- Settlement cones noted around pine trees
- A generally cloudy day, however a brief break in the action allowed a view across the valley of Mount Shasta as well as Castle Crags from the top of Middle Peak
- Clouds and fog quickly enveloped the area and a foggy descent ensued.
- Winds were steady and moderate for a short period this afternoon out of the southwest.
- Wind duration is unknown, however minor wind loading had occurred on easterly aspects. Some cracking was observed while skinning along a ridgeline. Fresh wind slabs were very small and inconsequential.
- Light snow fell at times, no accumulation
- Snow level was ~500 vertical feet below lake level.
Cloud Cover:75% of the sky covered by clouds
Accumulation rate:Less than 1 in. per hour
Air temperature:Below Freezing
Air temperature trend:Cooling