GNFAC Avalanche Advisory for Sun Mar 1, 2015
Bridger Range Madison Range Gallatin Range
Lionhead Area near West Yellowstone Cooke City
Not much has changed with the weather and snowpack over the past 24 hours. Winds have picked up slightly out of the west-northwest, which may have moved a little snow around in alpine terrain. In a few isolated locations, skiers or riders may encounter small wind slabs below upper elevation ridgelines. This problem is not widespread and will be easy to recognize and avoid.
GNFAC Avalanche Forecast for Sat Feb 28, 2015
Bridger Range Madison Range Gallatin Range
Lionhead Area near West Yellowstone Cooke City
Calm conditions over the past few days have allowed the snowpack to achieve a state of balance. The snow that fell earlier in the week has bonded well to the old snow surface and there is little in the way of buried weak layers.
GNFAC Avalanche Advisory for Fri Feb 27, 2015
Northern Gallatin Range
GNFAC Avalanche Advisory for Thu Feb 26, 2015
Northern Gallatin Range
Two small wind slabs released naturally on a E aspect on Bridger Peak and were seen on Wednesday, Feb 25. No other avalanche activity was observed. Photo: GNFAC
GNFAC Avalanche Advisory for Wed Feb 25, 2015
Bridger Range Northern Madison Range Northern Gallatin Range Cooke City
Mark demonstrates some advanced pit digging techniques.
Step 1: Bury the sled.
Step 2: Smooth out the trench wall.
Step 3: Do a stability test.
Step 4: Wait for your partner to come help you.
Photo: GNFAC
GNFAC Avalanche Advisory for Tue Feb 24, 2015
Bridger Range Northern Madison Range Northern Gallatin Range
Forecast link: GNFAC Avalanche Advisory for Tue Feb 24, 2015