Yost Lake

Yost Lake
Submission Info
Sunday, February 5, 2017 - 3:00pm
Red Flags: 
Recent loading by new snow, wind, or rain
Yost Lake 37° 45' 6.4296" N, 119° 5' 50.6724" W
Snowpit Observations
More detailed information about the snowpack: 

Clouds, gusty winds and a moderate wave of precipitation ahead of approaching storm system shut down J-7 mid-day. Toured out from the ski area to assess how much the previous day snow stability. Moderate to strong Southwesterly winds at ridgetop, observed snow banners on many peaks with significant transport above treeline. The soft slab noted the day previously had settled (previously Fist minus, now fist) and the shear note 5 to 10" from surface had strengthened from easy shears to moderate. Ski cuts on convex rolls produced 1 very small pocket ~6'x6' that dribbled to a stop and limited sluffing where disturbed. Snow depth below 8000' ~ 3- 4'.  No recent avalanches observed but visibility limited due to clouds and snow. Snow below ~8000 noticbly heavier than previous day.   

Weather Observations
Blowing Snow: 
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

Moderate to strong southerly winds. Cloud cover rapidly increased around noon with a band of moderate precipitation with a brief period of 1' an hour, eased back to ~1/2 hour for the duration of the afternoon, easing somewhat toward evening. 

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