Western Wyoming Avalanche Advisory
Jackson Ranger District, POB 1689, Jackson WY 83001
Issued: Mon December 26, 2005 5:13 PM

SITUATION:
Snow started falling in the Tetons just after 5am Monday, with accumulations at 
the higher elevations of 4-6" by late afternoon ond 1-2" in the vallies. Mountain 
temperatures remained in the twenties throughout the day and ridgetop winds 
between 15 and 25 mph blew from the Southwest to South. The Togwotee pass and 
Southwest Trails areas recieved less snowfall. This new snow is not adhering well 
to the old surface comprised mainly of crusts and wind packed snow (at the high 
elevations) yet lacked sufficient volume for avalanche activity.

FORECAST FOR Tuesday December 27, 2005 :
Snow is to continue into Tuesday morning with additional accumulations of 3-4" 
expected at the higher elevations throughout Western Wyoming. The chance for snow 
showers will continue on Tuesday. Temperatures are to cool slightly during this 
period and continued, moderate, Southwest winds are expected.

AVALANCHE HAZARD FOR THE TETON, TOGWOTEE PASS/CONTINENTAL DIVIDE 
AND GREYS RIVER/SOUTHWEST TRAILS AREAS

Tuesday the general avalanche hazard is expected to be MODERATE at the upper and 
mid elevations and LOW at low elevations. Backcountry users will be able to trigger 
sensitive new surface slabs and sluffs to a foot in depth on a variety of aspects. 
Due to relatively moderate winds and snowfall these slabs will be very soft and 
shallow and will be most dangerous in areas of high consequence such as terrain 
traps and exposed terrain. Some potential remains to trigger deeper hard slabs, 
totalling up to three feet, at the high elevations, particularly in the Togwotee 
and Southwest Trails areas where buried weak layers are more prominent.

Backcountry users are advised to consult area specific forecasts issued every 
morning as new information may become available and unexpected weather can change 
conditions.

TREND FOR WEDNESDAY AND THURSDAY :
The chance for snow showers continues Wednesday with significant accumulations 
expected Wednesday night into Thursday as another system enters the area. Higher 
winds are to accompany this next system and the avalanche hazard is expected to 
increase during that time depending on the snow and wind recieved.