Regional Conditions for Lionhead Range

as of 5:00 am
Today0″ | N/A
Oct 14 0″ | N/A
Oct 13 0″ | N/A
8775′     4/02 at 23:00
27 ℉
NW - 6 mph
Gusts 9 mph
7750′   10/15 at 21:00
40℉
5″ Depth
Bottom Line: It is barely fall, but with layers of snow piling up in the mountains bigger avalanches are possible. Avalanches this time of year are not uncommon, and have injured and killed people in past seasons (accident reports). If you plan to travel in the backcountry, whether skiing, climbing or hunting, prepare for avalanches like you would all winter. Avoid steep slopes with fresh drifts of snow, especially where even a small slide could push you into rocks or trees, or pile up deep in a confined gully.
Primary Problem: Wind-Drifted Snow

Past 5 Days

Mon Apr 29

None
Thu May 2

None
Thu Sep 26

None
Thu Oct 3

None
Thu Oct 10

None

Avalanche Activity- Lionhead Range

Northern Madison
Sphinx Mountain
Whumph on The Sphinx
Incident details include images
Sphinx Mountain
AF-O
Elevation: 9,000
Aspect: N
Coordinates: 45.1582, -111.4770
Caught: 0 ; Buried: 0

From e-mail on Saturday 10/5, climbers on the Sphinx found these conditions: "We found a lot of snow on the Sphinx today following heavy precip since Sam’s report two days ago [see photo]. 3-5 cm in the parking lot, 20 cm at the Sphinx-Helmet col. Moderate SW winds had created drifts almost a meter deep in places on the traverse to the ice routes on the north face. I backed off after a whumph on a particularly exposed section of the traverse. We tried different ledge systems above and below the normal approach route but found similar snow conditions throughout."

Photo: From 10/3 prior to 8-10" new snow, "No snow hazard of much concern on the approach. However, a quick hasty pit in an isolated wind pocket revealed a CT1 on this layer.  ice axe is to the ground."


More Avalanche Details
Bridger Range
Fairy Lake
Small wind slab near Fairy Lake
Incident details include images
Fairy Lake
SS-AS-R1-D1-S
Elevation: 9,000
Coordinates: 45.9043, -110.9580
Caught: 0 ; Buried: 0

From e-mail: "The only places one could ski were wind pockets blown into the limestone fin features that in places were well over a foot. These spots were also where the snow was weirdest/posed any sort of avalanche hazard as you pretty much had to find a wind slab in order to ski anything! One group reported triggering a slab in one of these spots, but vis was too poor to see."


More Avalanche Details

Photos- Lionhead Range

Displaying 1 - 12
  • A local near Fairy Lake gets a taste of fresh October snow and wind. "You know it's somewhat windy when the goats start closing their eyes and their beards get blown sideways." Photo: B. VandenBos

  • Strong westerly wind scoured snow off high ridgelines and slopes in the northern Bridger Range on Friday (10/11). Photo: B. VandenBos

  • Dry loose snow avalanches were observed on 10/10 as the recent snow settled. From e-mail "...saw some small, solar-initiated, dry loose snow slides in steep, rocky terrain (heads up ice climbers). With a firm surface beneath the new snow, these little guys were picking up steam quickly." Photo: B. VandenBos

  • Avalanche debris on the saddle near Hyalite Peak. This is indicative of the type of heavily wind loaded terrain near ridgelines where avalanches are most likely this time of year. Photo: B. VandenBos

  • We put up the Lionhead weather station on Tuesday, October 8th. There was 4-6" of snow above 8,000'. Photo: GNFAC

  • Broken off cornice on the saddle between Blackmore and Elephant on 10/5. "Snow was anywhere from inches deep with grass and rocks to hip deep. It was mostly knee deep though. Down in the flats below the bowl there was easily 8-10" fresh and another 2" on my way down..." Photo: @benjacobsenphoto

  • Wind transport of snow on Gallatin Peak, October 2, 2019. Photo: B. VandenBos

  • MSU SAW is October 9th from 5-9pm in SUB Ballroom A. www.montana.edu/outdoorrecreation/SAW.html for more info.

  • We hiked in to put up the Flanders weather station on 9/25 and found a spotty distribution of 4-6" of snow above 8,000'. Photo: GNFAC

  • Last weekend (9/23) there was about 14 inches of snow at 9,000'. Sun and warm temperatures created wet snow avalanches on slopes that face the sun. These small slides can be hazardous if they push you into the wrong terrain. Photo: Z. Drobnik

  • Last weekend (9/23) there was about 14 inches of snow at 9,000'. Sun and warm temperatures created wet snow avalanches on slopes that face the sun. These small slides can be hazardous if they push you into the wrong terrain. Photo: Z. Drobnik

  • Last weekend (9/23) there was about 14 inches of snow at 9,000'. Sun and warm temperatures created wet snow avalanches on slopes that face the sun. These small slides can be hazardous if they push you into the wrong terrain. Photo: Z. Drobnik

Videos- Lionhead Range

WebCams

Weather Forecast Lionhead Range

Extended Forecast for

10 Miles WNW West Yellowstone MT

  • Tonight

    Tonight: Partly cloudy, with a low around 28. South wind 8 to 10 mph.

    Partly Cloudy

    Low: 28 °F

  • Wednesday

    Wednesday: Sunny, with a high near 48. Breezy, with a south wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 29 mph.

    Mostly Sunny
    then Sunny
    and Breezy

    High: 48 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 30. South southwest wind 15 to 20 mph, with gusts as high as 29 mph.

    Partly Cloudy

    Low: 30 °F

  • Thursday

    Thursday: A 30 percent chance of snow after noon.  Partly sunny, with a high near 43. Breezy, with a south wind 11 to 16 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph.  Little or no snow accumulation expected.

    Partly Sunny
    then Chance
    Snow and
    Breezy

    High: 43 °F

  • Thursday
    Night

    Thursday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around 25. South wind 16 to 21 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Snow Likely

    Low: 25 °F

  • Friday

    Friday: Snow likely, mainly after noon. Some thunder is also possible.  Mostly cloudy, with a high near 28. Breezy.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Chance Snow
    then Snow
    Likely and
    Breezy

    High: 28 °F

  • Friday
    Night

    Friday Night: A 30 percent chance of snow, mainly before midnight. Some thunder is also possible.  Mostly cloudy, with a low around 23. Breezy.  Little or no snow accumulation expected.

    Chance Snow
    and Breezy

    Low: 23 °F

  • Saturday

    Saturday: Snow, mainly after noon.  Mostly cloudy, with a high near 26. Windy.

    Snow and
    Windy

    High: 26 °F

  • Saturday
    Night

    Saturday Night: Snow likely. Some thunder is also possible.  Cloudy, with a low around 21. Breezy.

    Snow Likely
    and Breezy

    Low: 21 °F

The Last Word

Get tickets for the 21st Annual Powder Blast Fundraiser on October 25th at The Emerson Ballroom.


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