TETON AREA ARCHIVED ADVISORY
Issued at 12/24/2015 05:38     Valid until: 12/24/2015 23:59

Mountain Weather Past 24 Hours 
 
Location 									Snowfall/Prec. 	Total Snow Depth 	Total Snowfall
At 9,300' Elevation (Raymer Plot) 			7"/ 0.61 			74" 				137"
At 9,580' Elevation (Rendezvous Bowl Plot) 	10"/ 0.80" 			66" 				156"
At 8,800' Elevation (Chief Joseph Plot) 	22"/ 1.00" 			82" 				159"

Mountain Weather Forecast for Today

Snow is expected throughout the day.

Temperature Forecast for 8,000´-9,000´: 	Rising into the teens.
Ridge Top Wind Forecast for 10,000´: 	Southwesterly at 10-20 mph.
Snowfall Expected Next 24 Hours: 	4-8

AVALANCHE DANGER 

7500' - 10500' HIGH
6000' -  7500' MODERATE

GENERAL AVALANCHE ADVISORY

Very dangerous avalanche conditions exist and human triggered avalanches are likely today at the 
mid and upper elevations. Snow has fallen for fifteen days on snowpack with weak snow at its base. 
Avalanches could be triggered today on these deep weaknesses and smaller avalanches are also 
possible involving newer snow that has recently fallen. This recent snow could release as wind slabs 
or as loose snow, particularly in areas that received over twenty inches of snow yesterday. At low 
elevations, the old weaknesses are not present and avalanche activity could be triggered as shallow 
surface slabs in very steep terrain.

TODAY'S AVALANCHE PROBLEMS 

Wind Slab - Likely
SIZE: Large - Small
TREND: Increasing
DESCRIPTION: Strong winds from the southwest to west occurred yesterday afternoon during heavy 
snowfall and during snowfall over the past week. Above 7500 feet, slabs could be one to three feet 
deep and have potential to steep down to deeper layers of faceted snow. At the lower elevations 
pockets of surface slab could be human triggered in very steep terrain with depths to 18 inches.

Persistent Deep Slab - Possible
SIZE: Very Large - Large
TREND: Increasing 
DESCRIPTION: Weak layers of faceted snow near the base of the snowpack have been loaded by snow and 
wind during the past several weeks. These weaknesses will be further stressed as additional snow 
falls today. These slabs could release by the weight of a single person. If triggered, these will be 
hard slabs and could have depths to five feet.

Bridger-Teton Avalanche Forecast Center
PO Box 424
Teton Village, WY 83025
307-733-2664