Northern Gallatin

Watch out for wind drifts

Date
Activity
Snowmobiling

Paraphrasing from a text from Six Points Avalanche Education

We dug in the 2nd Yellow Mule. Wind slabs were the primary problem and we were getting consistent ECTPs in the mid 20's on wind-loaded slopes. If the slope did not have a wind load, the slab was missing. 

Region
Northern Madison
Location (from list)
Buck Ridge
Observer Name
Eric Knoff

Mt Ellis Pits and Video

Date
Activity
Skiing

We skinned up to Mt. Ellis summit today. We dug our first pit on the approach at 7,700’. The first pit on a NE aspect was thin (HS = 80 cm/2.5 ft) with an ECTN 11 and 22 in the top half of the snowpack. In this shallow snow we saw depth hoar and facets at the ground. We dug our second pit near the Burn below the summit of Mt. Ellis (8,100’). This NE aspect had 2-3 ft of snow (85 cm), and we had an ECTX.

Both pits showed a shallow snowpack with facets at the bottom. Moving forward, the thin snowpack will be more susceptible to faceting. Also, the poor structure of this snowpack (dense snow on top of facets) could be a concern with more snow. These two things show us that we should continue to assess the snowpack around Mt. Ellis.

Region
Northern Gallatin
Location (from list)
Mt Ellis
Observer Name
GNFAC

Large slough or slide in Hyalite

Date
Activity
Skiing

Large slough or slide in Hyalite today. Taken from Lick Creek. Looks like either land of the lost or avalanche gulch

Region
Northern Gallatin
Location (from list)
Hyalite - main fork
Observer Name
Jerry Johnson

Small Avalanche Mt. Blackmore

Mt Blackmore
Northern Gallatin
Code
SS-N-R1-D1-S
Elevation
9500
Aspect
NE
Latitude
45.44440
Longitude
-111.00400
Notes

Small slide from the cliff bands at about 9500’, on a NE facing slope on Blackmore - looked like it broke pretty shallow sometime after the snow yesterday.

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
Trigger
Natural trigger
R size
1
D size
1
Bed Surface
S - Avalanche released within new snow
Problem Type
Wind-Drifted Snow
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year