Bridger Teton Backcountry Avalanche Forecast Center Bridger Teton Avalanche Center
SOUTHWEST TRAILS/GREY'S RIVER AREA NOWCAST
Issued at 12/08/2016 06:38     Valid until: 12/08/2016 23:59

CURRENT CONDITIONS (Mountain Weather Past 24 Hours)

At 10,400' Elevation: 5 AM Temp: -9 º F Max Temp: -5 Avg Wind Direction: Westerly Avg. Wind Speed: 12 Max Wind Gust: 27
View Temperature and Wind Graphs View Mt Coffin 48 Hr Wind Graph
 
Location Snowfall/Prec. Total Snow Depth Total Snowfall
At 9,330' Elevation (Commissary Ridge Plot) 1"/ 0.10 27" 99"
At 9,000' Elevation (Blind Bull Meadow Plot) 0"/ 0.00" 17" 75"
At 6,300' Elevation (Box Y Ranch Plot) 0"/ 0.00" 16" 42"

Mountain Weather Forecast for Today


Temperature Forecast for 8,000´-9,000´:
Ridge Top Wind Forecast for 10,000´:
Snowfall Expected Next 24 Hours:

GENERAL AVALANCHE ADVISORY

The chance continues for a single backcountry rider or skier to trigger large deep persistent slab avalanches at the upper elevations. Wind slab avalanches could also be triggered at the upper elevations as well as the mid elevations. Avalanches are unlikely at the lower elevations. Careful snowpack evaluation, cautious route finding and conservative decisions are essential for safe travel in avalanche terrain.

TODAY'S AVALANCHE PROBLEMS View problem definitions

Persistent Slab  
TYPE
ASPECT/ELEVATION
CHARACTERISTICS
Avalanche problem rose
LIKELIHOOD
Certain
Very Likely
Likely
Possible
Unlikely
SIZE
Historic
Very Large
Large
Small
TREND
Steady trend

DESCRIPTION

Large destructive slab avalanches with depths to five feet could be triggered on east through north to west aspects above 8500 feet. These large slabs will be hard, and are likely to have crowns high up in the slide path although initiation may occur lower on the slope. Beware that a few tracks are not an indication of stability for this type of hazard. Larger triggers such as snow machines as more likely to trigger these deep instabilities.
Wind Slab  
TYPE
ASPECT/ELEVATION
CHARACTERISTICS
Avalanche problem rose
LIKELIHOOD
Certain
Very Likely
Likely
Possible
Unlikely
SIZE
Historic
Very Large
Large
Small
TREND
Steady trend

DESCRIPTION

Wind slabs formed by west-southwest to west-northwest winds could be human triggered above 7500 feet with depths to two feet. These slabs could fail on density differences, sun crusts, or faceted snow.
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For further information call 307-733-2664 To report an avalanche observation call 307-739-2607
SPONSORS: Box Y Ranch, Wyoming State Trails Program, Jackson Hole Mountain Resort, DeFazio Law, Twenty Two Designs, Stewart Johnson, CPA, Exum Mountain Guides, Backcountry Access, Stio, Jackson Hole Backcountry Skiers Guide, Exploradus, Headwall Sports, Ortovox, Brain Farm, RPK3 Law, Pearl Street Bagels and Snake River Brewing
 
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