GNFAC Avalanche Forecast for Sat Apr 4, 2015
Bridger Range Gallatin Range Madison Range
Lionhead area near West Yellowstone Cooke City
GNFAC Avalanche Forecast for Fri Apr 3, 2015
Bridger Range Madison Range Gallatin Range
Lionhead area near West Yellowstone Cooke City
GNFAC Avalanche Advisory for Thu Apr 2, 2015
Bridger Range Gallatin Range Madison Range
Lionhead area near West Yellowstone Cooke City
GNFAC Avalanche Forecast for Wed Apr 1, 2015
Bridger Range Northern Gallatin Range Northern Madison Range
GNFAC Avalanche Advisory for Tue Mar 31, 2015
Bridger Range Madison Range Gallatin Range Lionhead area near West Yellowstone Cooke City
These avalanches outside of Cooke City are indicative of wet loose avalanches triggerring small slabs. Photo:Mittelstaedt
Forecast link: GNFAC Avalanche Advisory for Tue Mar 31, 2015
This loose, wet avalanche was observed in Beehive Basin on a west facing slope. As warm temperatures and strong solar input soften the snow surface, both natural and human triggered avalanches will become more likely. Photo GNFAC
Forecast link: GNFAC Avalanche Advisory for Tue Mar 31, 2015
At 1030 the snowpack was tenuously holding onto last nights cold. It was -2C, 10 cm under the surface. This will quickly turn to zeroC which means water can begin to percolate down and weaken the snow further. Tomorrow (Tue, March 31) will likely see wet loose avalanches as a result. Photo: GNFAC
Forecast link: GNFAC Avalanche Advisory for Tue Mar 31, 2015
GNFAC Avalanche Advisory for Mon Mar 30, 2015
Bridger Range Madison Range Gallatin Range
Lionhead area near West Yellowstone Cooke City
We are in a typical spring pattern where the avalanche danger is lower in morning but increases during the day as strong solar input and warming temperatures soften the snow surface. Yesterday, high clouds and a moderate breeze helped keep the snow surface cool, which limited wet snow activity. Today, sunnier skies and warmer temperatures will increase the likelihood of wet snow avalanches.