Bridger Range

Toured the ramp today and observed an avalanche in hour glass. It was a soft slab that broke in some rocks near the top of the chute, it ran the entire length of the chute and the debris was fairly large (d1.5). The crown looked to be between 8” and 1.5 ft, and was about 30 ft wide. 

We did not find any signs of weak layers from the recent high pressure while touring throughout Bradley Meadows area. 

HS of 125-155cm in Bradley Forest North, 130-200cm in Wolverine woods. CT4-12Q2 down 25 (new/old interface), ECTN x 3 in Bradley Forest North.

Moderate/high winds, Few clouds, no precip, air temp 5F deg around 2pm.

Feb 7 We saw a couple storm slabs that broke in today's snow 4-6" deep, 10-30' wide, and we triggered one 3-4" deep wind slab, "remotely", from a few feet back on a small ridgeline. R2-D1. These slabs were very soft, F- to F hard. Photo: GNFAC

Feb 7 We saw a couple storm slabs that broke in today's snow 4-6" deep, 10-30' wide, and we triggered one 3-4" deep wind slab, "remotely", from a few feet back on a small ridgeline. R2-D1. These slabs were very soft, F- to F hard. Photo: GNFAC

We rode below the Throne and towards Fairy Lake, mostly at elevations 6,800-7,500'. It snowed steady S1-2 most of the day and tapered off in the afternoon. Wind was a stout moderate out of the east and south in the parking lot. Wind was light to moderate out of the south up higher/"mid-mountain". There was a brief clearing mid-day and we could see the bowl and ridge south of Naya Nuki.

We saw a couple storm slabs that broke in today's snow 4-6" deep, 10-30' wide, and we triggered one 3-4" deep wind slab, "remotely", from a few feet back on a small ridgeline. R2-D1. These slabs were very soft, F- to F hard.

The interface below this week's storm was generally well bonded to the surface below and lacked a weak layer from the recent high pressure. I would not totally rule out the potential of something breaking wider on a weak layer because we did not get a good look at higher elevations, but so far it seems less likely to have a persistent slab problem involving a layer below this week's snow in the Bridgers as compared to other parts of our forecast area.

I was boarding Job 1 (E, NE aspect) in the Bridger D route. We had 6-8 inches of new snow and I triggered a large break, and 2-3 turns later triggered a small avalanche that traveled 30 ft rfar and was about 4 inches deep. I was the last one on the route before ski patrol closed it down.

200ft wide and rather shallow, did not manage to run fully into the apron.