whats in a name?
Date
Activity
Snowboarding
Observer Name
Anthony Nonomous
22-23
Storm slabs at Bridger Bowl
Date
Activity
Skiing
Saw some cracking and propagation of a 6-8" storm slab on steeper terrain near the Bridger Lift. Gentle upslope winds seem to have compacted a slab near some terrain features, and I got a small propagation at the edge of the Sluice Box gully where the slope angle tipped up near 40.
Region
Bridger Range
Location (from list)
Bridger Bowl
Observer Name
Charlie von Avis
GNFAC Avalanche Forecast for Tue Nov 8, 2022
Snowpack and Avalanche Discussion
<p><span><span><span><span><span><span>Avalanches continue to be likely with last night’s new snow and more snow expected tonight through tomorrow. Since Friday the mountains near Cooke City and West Yellowstone received over 2 feet of snow equal to 2.5-3” snow water equivalent (SWE) and near Bozeman and Big Sky received 1-1.5 feet of snow equal to 1-1.5” SWE.</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Skiers, hunters, ice-climbers and snowmobilers should be extra cautious of travel on and across steep slopes, especially where wind has drifted the recent snow into thick slabs. Either avoid steep slopes all together, or carefully evaluate the snowpack and consequences of being caught in an avalanche. Avalanches can be large enough to bury a person, and will be especially dangerous if they pile deep in a narrow gully, or push you through rocks or trees.</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Travel in the backcountry like you would any day of the winter. Carry an avalanche beacon, shovel and probe, and go with a partner. Take extra time to ensure your rescue gear is functional, not damaged, and you and your partners know how to use it.</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Your observations are more important than ever this time of year as we get to know this season’s snowpack. </span></span></span></span></span></span></p>
<ul>
<li><a href="https://www.mtavalanche.com/node/add/snow_obs"><span><span><span><stron… your Observations</span></span></u></span></strong></span></span></span></a></li>
<li><a href="https://www.mtavalanche.com/snow-observations-list"><span><span><span><… the Observations</span></span></u></span></strong></span></span></span></a></li>
</ul>
<p><span><span><span><span><span><span>If you get out, please share avalanche, snowpack or weather observations via our </span></span></span></span></span></span><a href="https://www.mtavalanche.com/node/add/snow_obs"><span><span><span><stron…;, email (</span></span></span></span></span></span><a href="mailto:mtavalanche@gmail.com"><span><span><span><strong><span><u><span>…;), phone (406-587-6984), or Instagram (#gnfacobs). </span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Since Friday the mountains near Island Park received 2 feet of snow equal to 2.5” snow water equivalent. Avalanches continue to be likely with last night’s new snow and more snow expected tonight through tomorrow. Skiers, hunters, ice-climbers and snowmobilers should be extra cautious of travel on and across steep slopes, especially where wind has drifted the recent snow into thick slabs. Either avoid steep slopes all together, or carefully evaluate the snowpack and consequences of being caught in an avalanche. Carry an avalanche beacon, shovel and probe, and go with a partner. Take extra time to ensure your rescue gear is functional, not damaged, and you and your partners know how to use it.</span></span></span></span></span></span></p>
Upcoming Avalanche Education and Events
Our education calendar is full of awareness lectures and field courses. Check it out: Events and Education Calendar.
Weak layer in Bradley Meadows
Date
Activity
Skiing
4:30 PM Sunday Nov 6, 2022.
I was skinning up Bradley Meadows. I was about 2 switchbacks from the top on the slightly steeper pitch. I pulled over to dig a snow pit and found a week later of facets appx 7" from the surface and a second week later just above the ground. I performed a compression test which failed on the second tap from shoulder height at the upper facet.
I interpreted this as a questionable snowpack and returned via my low angle skin track.
Region
Bridger Range
Location (from list)
Bradley Meadow
Observer Name
Michael Maxwell
While traveling up the Fairy Lake road, we observed the aftermath of an avalanche in October Bowl. The avalanche was D2-D3, start zone was at approximately 9000 ft, north east aspect, crown depth and width is unknown. Photo: H. Bigos-Lowe
Avalanche Details: Avalanche in October Bowl
Forecast link: GNFAC Avalanche Forecast for Tue Nov 8, 2022GNFAC Avalanche Forecast for Thu Nov 10, 2022
Bridger Range, 2022-11-05
Forecast link: GNFAC Avalanche Forecast for Tue Nov 8, 2022GNFAC Avalanche Forecast for Thu Nov 10, 2022
Avalanche in October Bowl
Hardscrabble Peak
Bridger Range
Code
U-N-R2-D2
Elevation
9005
Aspect
NE
Latitude
45.90970
Longitude
-110.98000
Notes
While traveling up the Fairy Lake road, we observed the aftermath of an avalanche in October Bowl. The avalanche was D2-D3, start zone was at approximately 9000 ft, north east aspect, crown depth and width is unknown.
Number caught
0
Number buried
0
Avalanche Type
Unknown
Trigger
Natural trigger
R size
2
D size
2
Problem Type
Wind-Drifted Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
Avalanche in October Bowl
Date
While traveling up the Fairy Lake road, we observed the aftermath of an avalanche in October Bowl. The avalanche was D2-D3, start zone was at approximately 9000 ft, north east aspect, crown depth and width is unknown.
Region
Bridger Range
Location (from list)
Hardscrabble Peak
Observer Name
Harrison Bigos-Lowe