Northern Gallatin
Spencer Jonas, GNFAC intern, in a snowpit in Beehive Basin. We found over 6 feet of snow and just dug our the top 4 feet to assess the stability. The new snow is bonding well and there were no signs of instability. Photo: GNFAC
Cornices have grown rapidly in the last few days. These will be susceptible to breaking and could trigger pillows of wind slabs under them. Photo: Bridger Bowl Ski Patrol
Strong wind stripped snow off many slopes above treeline. Photo: GNFAC
This naturally triggered avalanche likely happened Tuesday morning. Strong wind loaded slopes and made huge cornices. Photo: GNFAC
Avalanche Details: Cornice triggered avalanche in Republic Creek, Cooke
Forecast link: GNFAC Avalanche Forecast for Wed Mar 11, 2020
Cooke City, 2020-03-11
Forecast link: GNFAC Avalanche Forecast for Wed Mar 11, 2020
The winds blew the new new into wind slabs that avalanched naturally yesterday. This photo was taken at 9:30 a.m. on Tuesday (3/10) by Evan Schock.
Many natural and skier triggered wind slabs in Bridgers
Bridger Range
Code
SS-AS
Aspect
E
Latitude
45.77010
Longitude
-110.94000
Notes
Observations from Bridger Ski Patrol:
"At 10:30 am natural avalanches were reported Between the Peaks of Saddle, in Argentina Bowl, and on Bridger Peak. At 11am a solo skier trigger an avalanche on the north peak of Saddle with a cornice drop. Shortly after, skier triggered avalanches were reported to the north, in Peter's Point, and Barny and Gibbs."
From a skier:
"Really touchy windslab formation throughout the day. 6-12 in slabs running on freeze crust."
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Skier
Problem Type
Wind-Drifted Snow
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year