TETON AREA FORECAST
Issued at 12/23/2017 06:20   Valid until: 12/23/2017 23:59
CURRENT CONDITIONS (Mountain Weather Past 24 Hours)
At 10,400' Elevation 5 AM Temp Max Temp Avg Wind Dir Avg. Wind Speed Max Wind Gust
Rendezvous Summit 7 º F 7 West-Southwesterly 30 54
Location Elevation Snowfall/Prec. Total Snow Depth Total Snowfall
Raymer Plot 9,300' 14"/ 0.90 56" 161"
Rendezvous Bowl 9,580' 12"/ 0.80" 63" 164"
Chief Joseph Plot 8,800' 13"/ 0.80" 68" 144"
Mountain Weather Forecast for Today
Expect light to moderate snowfall through noon before snowfall intensity begins to decrease in the afternoon.
Temperature forecast for 8,000 - 9,000: Rising into the mid teens.
Ridge Top Wind Forecast for 10,000´: Veering to the northwest and increasing to 25 to 40 miles per hour.
Snowfall Expected Next 24 Hours : 4 to 8
GENERAL AVALANCHE HAZARD
Elevation Morning Rating Afternoon Rating
High Elevations (9,000´-10,500´) 4-HIGH 4-HIGH
Mid Elevations (7,500´-9,000´) 3-CONSIDERABLE 3-CONSIDERABLE
Low Elevations (6,000´-7,500´ 1-LOW 1-LOW
General Avalanche Advisory
The National Weather Service has issued a Winter Storm Warning through 5 PM today. The combination of very strong winds and over a foot of new snow has created dangerous avalanche conditions. This loading event has added weight to faceted weak layers below the new snow, and large to very large natural avalanches will be possible at the mid and upper elevations. Up there, skiers and riders are also likely to trigger new soft slabs and loose snow sluffs in steep avalanche terrain. TRAVEL IN AVALANCHE TERRAIN IS NOT RECOMMENDED ABOVE 9,000 FEET. A conservative approach to route finding will be essential for safe travel in avalanche terrain at the mid elevations. At the lower elevations, backcountry travelers could trigger isolated pockets of soft slab up to a foot deep in very steep terrain.

TODAY'S AVALANCHE PROBLEMS

TYPE OF PROBLEM
ASPECT/ELEVATION
Persistent Slab
Avalanche problem rose
CHARACTERISTICS
LIKELIHOOD
Certain
Very Likely
Likely
Possible
Unlikely
SIZE
Historic
Very Large
Large
Small
TREND
Increasing trend
DESCRIPTION
Abundant snowfall and very strong winds have loaded weak layers of faceted snow that formed during the mostly dry period from the first half of December. Below this faceted snow, stout crusts from the end of November provide good sliding surfaces, and backcountry travelers are likely to trigger slab avalanches ranging in depth from two to four feet. Natural activity can also be expected.
For further information call 307-733-2664 To report an avalanche observation call 307-739-2607