GNFAC Avalanche Advisory for Tue Feb 22, 2011
The Bridger, Madison and Gallatin Ranges, the Lionhead area near West Yellowstone, the mountains around Cooke City and the Washburn Range:
Winds were transporting a lot of snow. Those are not clouds--that's windblown snow. Photo: Kyle Rott
Forecast link: GNFAC Avalanche Advisory for Tue Feb 22, 2011
I found the layer of small-grained facets breaking and propagating in one of my snowpits. I was surprised by this since we were not finding it on other slopes. Even though this instability is isolated, its worth looking for. Photo: Jordy Hendrikx
Southern Madison, 2011-02-21
GNFAC Avalanche Advisory for Mon Feb 21, 2011
The Bridger Range:
GNFAC Avalanche Forecast for Sun Feb 20, 2011
The Madison and Gallatin Ranges, the Lionhead area near West Yellowstone, the mountains around Cooke City and the Washburn Range:
The primary issue today will be wind slabs that have been formed by strong winds over the past few days. Prior to this latest storm the dominating wind direction has been from the WSW, which loaded north and east facing slopes. Over the past 24 hours the winds have switched and are now blowing out of the SSE, loading slopes that were previously scoured. This will add a twist to snowpack and terrain assessment.