Northern Gallatin
Photo taken from Silken Falls
You guys probably already know about this one, but if not then here’s a photo of what appeared to be a natural D2 underneath the Maid today.
Little Mt. Ellis
At 6450 feet on a north facing aspect on Little Mt. Ellis I found a snow depth of 75 cm. I dug a pit and got a Ct -7. Ect - 18, both failing on ground facets at 15-20 cm depth. I didn’t see any slides, but I did feel and hear one whumpf on the way up. Needless to say, I kept it low angle on the way down. Hope you can use this data. Thanks for all the great work you do!
Very Large, Natural Avalanches Divide Basin
From Obs: "I skied around the little hills in the basin south of Divide Peak today, and saw quite a bit of recent activity. The southwest corner of Divide Cirque slid on the storm slab and broke 1200-1500’ wide, an east aspect had a crown that exceeded 6’ in places, and the south side of Divide broke 2-6’ deep and ran full track. Things up high are active. I observed no collapsing or cracking, but the signs of instability were still pretty clear"
From obs: "The southwest corner of the cirque slid on the storm slab and broke 1200-1500’ wide, an east aspect had a crown that exceeded 6’ in places, and the south face of Divide Peak broke 2-6’ deep and ran full track. I observed no collapsing or cracking, but the signs of instability were still pretty clear." Photo: S Reinsel
From obs: "The southwest corner of the cirque slid on the storm slab and broke 1200-1500’ wide, an east aspect had a crown that exceeded 6’ in places, and the south side of Divide broke 2-6’ deep and ran full track. I observed no collapsing or cracking, but the signs of instability were still pretty clear." Photo: S Reinsel
Forecast link: GNFAC Avalanche Forecast for Wed Feb 17, 2021
From obs: "The southwest corner of the cirque slid on the storm slab and broke 1200-1500’ wide, an east aspect had a crown that exceeded 6’ in places, and the south side of Divide broke 2-6’ deep and ran full track. I observed no collapsing or cracking, but the signs of instability were still pretty clear." Photo: S Reinsel
Forecast link: GNFAC Avalanche Forecast for Tue Feb 16, 2021
Divide Basin
I skied around the little hills in the basin south of Divide Peak today, and saw quite a bit of recent activity. The southwest corner of the cirque slid on the storm slab and broke 1200-1500’ wide, an east aspect had a crown that exceeded 6’ in places, and the south side of Divide broke 2-6’ deep and ran full track. I am not sure what the bigger slides failed on, and would not feel particularly confident guessing, but things up high are active. We dug a pit on the south side of Palace Butte on Saturday and found what appeared to be a very stable snowpack, but seeing Divide slide on the same aspect is evidence that a snowpit is only part of the puzzle. I observed no collapsing or cracking, but the signs of instability were still pretty clear.
Splitboarder triggered, caught and killed in Beehive
On February 14, 2021, two splitboarders triggered an avalanche in Beehive Basin north of Big Sky. They were skinning up the slope when they triggered the avalanche. Both members of the party were caught, but Boarder 1 was able to grab trees and not be buried. Boarder 2 was carried approximately 300 feet downslope where he hit a tree and was critically injured. He was partially buried, entangled around a tree with his head downhill. Boarder 1 heard his partner’s screams, called 911 and went to his aid. He administered first aid and worked to keep him warm and calm. Gallatin County Sheriff Search and Rescue in Big Sky (GCSAR) left the trailhead within 45 minutes of the 911 call, skied to the scene and began providing care. A GCSAR helicopter arrived soon afterward and the injured boarder was short hauled to Big Sky Fire Department and medical care. Boarder 2 died from his injuries that night. The avalanche was 300 feet wide, 500 feet vertical and averaged 2 feet deep. It broke on a layer of facets and near the ground. Read the full accident report here: https://www.mtavalanche.com/accident/21/02/16
West pine creek
Toured into west pine today for a short outing. Got a handful of large and small whomps. Dug a snow pit on a south east aspect at 6800’ I got ectn however I had a log running through the side of my pit so I think that altered my results. I did take my shovel afterwards and did a pull test and the recent storm slab (30”) came off pretty easy.