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Observation Date: 
02/17/2018
Observer Name: 
Gagne/Frey/Ormsby/Duvernay
Region: 
Salt Lake
Location Name or Route: 
Mineral Fork
Weather
Sky: 
Clear
Weather Comments: 
Clear and calm, with plumes developing off higher ridgelines by late morning.
Snow Characteristics
Snow Surface Conditions: 
Dense Loose
Damp
Snow Characteristics Comments: 

Thursday storm has settled to 20 cms (8"). Surface beginning to facet in top few mms.

HS > 9000': 75-120 cms

​HS 8500-9000: 60-90 cms

​Poor coverage lower elevations and west aspects. 

Red Flags
Red Flags: 
Poor Snowpack Structure
Comments: 

First time in Mineral this season. Very poor coverage down low, but decent coverage above about 8000'. Wanted to get an idea of conditions in thinner snowpack areas. Quite a bit of weak snow to be found in Mineral, but also finding a stronger slab with 1F hardness that is 120 cms deep in places above 9000' (likely deeper above 9500').

Mineral did not do as well with Thursday storm with 20 cms (8") settled, with a total of 30 cms settled over the past three storms (2/10, 2/12, 2/15).

Plenty of terrain above 9000' with shallow ~75-90 cms snowpack with weak faceted snow.

Takeaway for me was spatial variability:

- terrain above 9000' with a strong, supportive slab on top of weak snow down near the ground. 

- plenty of thinner snowpack areas between 8500' and 9500' with weak faceted snow.

Pit profile and photo. Of interest was a thin layer of faceted snow on top of a MF crust down 30 cms. 

Plumes coming off of higher ridgelines. The winds seemed to increase by late morning, but am guessing little drifting and most of the windblown snow was sublimating. 

 

Photo taken from a distance, but it appeared Room of Doom (at the head of Mineral Fork) had naturaled, likely during the storm on Thursday. The arrow points towards the toe of the debris. Notice the tracks to the lookers left.

Today's Observed Danger Rating: 
Moderate
Tomorrows Estimated Danger Rating: 
Considerable
Snow Profile Coordinates: 
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