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PROFESSIONAL OBSERVATION FORM
 Start Date: 03.16.19 Name: Lundy, Guess Operation: SAC
 Drainage/Route:  Grand Prize/Backside of Gladiator Observed Terrain:  7800-9800, most aspects Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: FEW Precip: Temps:
 Ridgeline Wind: Calm
 Blowing Snow: Snow Available for Transport: Small amounts
 Comments: Warm day with lots of solar input, but didn't feel "hot". Mid and upper elevation shady slopes stayed dry. Could see lots of solar aspects but didn't travel on many to assess wetness.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 Grand Prize Yesterday 1.5 WL N SW 9700 Decent sized WL from yesterday. See photo.
 1 Patterson Peak Today 1.5 WL N SW Mid to upper Above the mouth of Quigley. Reported by Scott on his drive home. Today or yesterday.
 Comments: Saw a handful of new WL in the Sawtooths in the usual spots in Meadow and Marshall basins. Nothing appeared bigger than D1-1.5. Also saw a D1.5 WL across from the Stanley RS on low elevation W aspect.

Widespread deep slab destruction in the Grand Prize drainage. Many big slides on all aspects. Most significant was on the NW side of the Gladiator Peak ridgeline. The crown was about a mile wide and ranged from 4-12+' deep - probably averaged 6'. Also saw another big deep slab on the slope that faces the W face of Gladiator Peak at the head of Westernhome (up drainage from the Psilocybin couloir).
SNOWPACK OBSERVATIONS
 HS:  
 Upper Pack: Dry FCsf on shady aspects. Wet on solars. 
 Middle Pack: n/o 
 Lower Pack: n/o 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wet Loose

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Reactive

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Sensitivity based on activity
 
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Isolated
Terrain
  Problem 2 Comments: Seem pretty glued down on the SE slopes leeward to the NW wind event. May be more reactive on shady aspects, but they're less common there.
STABILITY TESTS
 Stability Test Results:
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
FILE ATTACHMENTS

190316_grand_prize_WL_SW_9700.jpg