Bridger Teton Backcountry Avalanche Forecast Center Bridger Teton Avalanche Center

Issued on Sat February 13, 2016 6:19 PM    


Skies over Western Wyoming started out and ended partly cloudy on Saturday. A cold front moved through the region mid-morning and strong ridgetop winds ensued with hourly averages ranging from 30 to 40 miles per hour at most weather stations. These winds were out of the southwest to west and gusted into the 60s. Mount Coffin was the exception, and averages climbed into the 60s with gusts near 90. With frontal passage, cloud cover also increased. Mountain temperatures started out in the low to mid-20s and decreased as the day progressed. The valleys briefly climbed into the low 40s before dropping into the low 30s.

Today’s strong winds were able to move some snow at the higher elevations, but with the limited amount of snow available for transport, little deposition occurred. Sun crusts remained frozen in the mountains and softened in the lower elevations. Dry, settled powder can still be found in terrain that is sheltered from both the sun and the wind.

FORECAST FOR Sunday, February 14, 2016

The National Weather Service has issued a Winter Storm Warning for the Tetons and Gros Ventre Mountains beginning at 5 AM Sunday morning and continuing through 5 PM on Monday. During this same time period, the surrounding areas will be under a Winter Weather Advisory. Snowfall will develop overnight and continue through the day as moist, westerly flow resides over the region. Nighttime lows in the mountains will be in the teens before rising into the 20s during the day. Westerly ridgetop winds will range from 25 to 35 miles per hour with gusts to near 50.

The general avalanche hazard is expected to increase to Moderate on Sunday. Wind slabs, which will form on stout sun crusts and wind pack, could be triggered by skiers and riders venturing in steep avalanche terrain. As the day progresses, these slabs will gain depth and volume. In the Togwotee Pass area, persistent weak layers deeper in the snowpack will remain a concern.

TREND FOR Monday, February 15, 2016 AND Tuesday, February 16, 2016

Snowfall will continue on Monday before tapering down on Tuesday. The general avalanche hazard will slowly increase as new wind slabs increase in depth and volume.
For further information call 307-733-2664 To report an avalanche observation call 307-739-2607
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