Bridger Teton Backcountry Avalanche Forecast Center Bridger Teton Avalanche Center
SOUTHWEST TRAILS/GREY'S RIVER AREA NOWCAST
Issued at 12/09/2016 06:28     Valid until: 12/09/2016 23:59

CURRENT CONDITIONS (Mountain Weather Past 24 Hours)

At 10,400' Elevation: 5 AM Temp: 16 º F Max Temp: 16 Avg Wind Direction: West-Southwesterly Avg. Wind Speed: 32 Max Wind Gust: 83
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) 6"/ 0.48 31" 105"
At 9,000' Elevation (Blind Bull Meadow Plot) 4"/ 0.36" 21" 79"
At 6,300' Elevation (Box Y Ranch Plot) 6"/ 0.56" 25" 48"

Mountain Weather Forecast for Today

light to moderate snowfall is expected throughout the day today.
Temperature Forecast for 8,000´-9,000´: Rising into the mid twenties.
Ridge Top Wind Forecast for 10,000´: Westerly at 20-30 mph.
Snowfall Expected Next 24 Hours: 8-14

GENERAL AVALANCHE ADVISORY

The chance continues for a single backcountry rider or skier to trigger large and dangerous deep persistent slab avalanches at the upper elevations as well as smaller wind slab avalanches at all elevations. As new snow and strong winds occur today, these slabs will increase in sensitivity and new shallow soft wind slabs will develop. 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
Increasing 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
Increasing trend

DESCRIPTION

Recently formed wind slabs and new soft slabs currently forming during this storm event could be triggered today. The newer wind slabs could have depths as large as eighteen inches by the end of the afternoon with a slight potential for older slabs to trigger with depths of an additional two feet.
To subscribe to email forecasts, go to: Subscribe to forecast emails.
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
 
<<    >>
Avalanche Event Observation
Weather/Snow Observation
Snowpit Profile