Southwest Trails/Grey's River Area
Jackson Ranger District, POB 1689, Jackson WY 83001

Issued: Sat February 06, 2010 6:20 AM

M O U N T A I N - W E A T H E R - P A S T - 2 4 - H O U R S

5:00 AM Temperature at 10,400': 	17º F
Maximum Temperature at 10,400' Past 24 Hours: 	19º F
Average Wind Direction at 10,400' Past 24 Hours: 	West-Southwesterly
Average Wind Speed at 10,400' Past 24 Hours: 	14 MPH
Maximum Wind Gust at 10,400' Past 24 Hours: 	27 MPH
Snowfall/Prec. Past 24 Hours Blind Bull Meadow: 	4"/ 0.2"
Total Snow Depth 9,300´ Elevation Blind Bull Meadow: 	54"
Total Snowfall Starting October 1 Blind Bull Meadow: 	155"
Snowfall/Prec. Past 24 Hours Box Y Ranch: 	5"/ 0.2"
Total Snow Depth 6,300´ Elevation Box Y Ranch: 	40"
Total Snowfall Starting October 1 Box Y Ranch: 	122"

M O U N T A I N - W E A T H E R - F O R E C A S T - F O R - T O D A Y

Mostly cloudy skies are expected with a chance for occasional flurries.

Temperature Forecast for 8,000´-9,000´: 	Rising into the mid to upper twenties.
Ridge Top Wind Forecast for 10,000´: 	Westerly at 10-20 mph.
Snowfall Expected Next 24 Hours: 	0-2"

G E N E R A L - A V A L A N C H E - A D V I S O R Y

The general avalanche hazard is CONSIDERABLE. A well developed, persistent, weak layer of 
faceted snow and depth hoar lies at the base of the snowpack. In steep terrain, the potential 
continues for backcountry travelers to trigger hard slab avalanches involving this basal 
layer. These poorly supported slabs could be triggered by a single person, and more likely by 
heavier loads such as snowmobiles, even after a slope has been crossed many times. Loose snow 
sluffs and shallow soft slabs near ridge crests involving recently fallen snow could also be 
triggered in steep terrain.