Bishop Creek-Table Mtn-rain crust

SNOWPACK OBSERVATION
Jawbone Canyon-Table Mtn
Submission Info
Forecaster
Friday, February 15, 2019 - 10:30pm
37° 13' 36.1596" N, 118° 35' 24.1296" W
Snowpit Observations
More detailed information about the snowpack: 

Toured up Jawbone canyon onTable Mtn above Aspendell in N Fork Bishop Creek. 

On the drive up there was some evidence of small loose wet slides on the northerly side of Table Mtn. (see picture) These were D.5 at the most running a 100-200ft or so, flat light made it hard to see.

HNS: 10-15cm where sheltered.

The rain crust that formed yesterday/last night made for some difficult skinning down low (ski crampons recommended). Around the 9000ft elevation there was from 3-5cm thick rain crust below 5cm of new snow. As I got up higher, sheltered areas and gullies had 10-15cm of new snow, composed primarily of graupel. Skiing from highpoint of 10600ft  was quite fantastic with wispy, pasty snow.

Dug a pit at 10200ft (see attached profile and video) and there was a thin rain crust, close to 1/2cm  thick below the 10cm new snow. Important to note is that  I no longer found the rain crust at 10600ft on the northerly slope I ascended and skiied. Will have to track this crust and see if it persists under the expected new accumlations of snow...

Performed some heavy stomping and ski cutting on cross loaded northeast aspects adjacent to ridgeline and was not able to get much reaction. Some minor cracks a few feet off the ski tips. Did not encounter any firm or stiff windslab at this time; late morning. Although new snow reacted moderately in compression tests on the buried rain crust, it seemed well bonded for the most part and did not sluff or slab off while skiing on high 30deg terrain.

 

Snowpit or crown profile photo or graph: 
Snowpack photos: 
Snowpit videos (tests, etc): 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Light
Precipitation: 
Snow
Air temperature trend: 
Static
Wind Direction: 
Southwest
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

Relatively light winds, but periodic strong gusts from the SW 40-50mph. Was snowing lightly to moderate rates during the morning while on the tour. Snow was being transported to leeward northerly aspects.

20F at 1030am

Sky was completely overcast.

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