Bridger Range

Natural release Battle Ridge

The Throne
Bridger Range
Code
N-R2-D2
Aspect
SE
Latitude
45.88220
Longitude
-110.95200
Notes

From IG: Battle ridge today/yesterday the 27th. Noticed this and a few other smaller solar releases as well as a couple storm slabs from during the cycle. Sun crust formed rapidly and there was a lot of wind loading in the afternoon

Number of slides
1
Number caught
0
Number buried
0
Trigger
Natural trigger
R size
2
D size
2
Images
Natural Avalanche near Battle Ridge
Snow Observation Source
Natural release Battle Ridge
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year
22-23

From IG: Battle ridge today/yesterday the 27th. Noticed this and a few other smaller solar releases as well as a couple storm slabs from during the cycle. Sun crust formed rapidly and there was a lot of wind loading in the afternoon. Photo: P Norvell

Avalanche Details: Natural release Battle Ridge
Forecast link: GNFAC Avalanche Forecast for Tue Mar 28, 2023GNFAC Avalanche Forecast for Thu Mar 30, 2023
Bridger Range, 2023-03-28
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    • Recent avalanches on the Throne

    Date
    Activity
    Snowmobiling

    We observed evidence a couple of recent slab avalanches at the throne

    Region
    Bridger Range
    Location (from list)
    The Throne
    Observer Name
    Jed Weingarten

    Natural release Battle Ridge

    Date

    From IG: Battle ridge today/yesterday the 27th. Noticed this and a few other smaller solar releases as well as a couple storm slabs from during the cycle. Sun crust formed rapidly and there was a lot of wind loading in the afternoon

    Region
    Bridger Range
    Location (from list)
    The Throne
    Observer Name
    Parker Norvell

    From obs 3/26/23: "Saw a couple small natural slides breaking in the new snow.... occurred in the afternoon sometime" Photo: J. Weingarten

    Avalanche Details: New snow avalanches at Portal Crk
    Forecast link: GNFAC Avalanche Forecast for Mon Mar 27, 2023GNFAC Avalanche Forecast for Tue Mar 28, 2023GNFAC Avalanche Forecast for Wed Mar 29, 2023
    Northern Gallatin, 2023-03-27
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    • Wet slide in Lower Middle Cottonwood Canyon

    BRIDGER RANGE
    Bridger Range
    Code
    WS-N-R3-D2-O
    Elevation
    5900
    Aspect
    N
    Latitude
    45.85120
    Longitude
    -110.94800
    Notes

    I observed the results of a wet slide avalanche within the first mile of Middle Cottonwood Creek Trail. The slide came down from the south side of the canyon (north facing), and crossed the trail at about 4-5' deep and 10' across at the trail with debris and into the creek at the creek crossing about .75 mile from the trailhead. The crown was only about 100' up the side of the canyon. The avalanche would've occurred earlier in the week, there was just the skiff of snow on it from the previous light snow (22nd?). In the rest of that section there are pinwheels all along that south canyon slope (north facing).

    This is the 3rd wet slide I've seen in the last 3-4 weeks on Middle Cottonwood in the same region where the trail is on the south side of the creek (mile .4-.80 from summer trailhead). This area is easily accessible by hikers (I was running) and I've seen wet slides in that area 3 of the last 4 years once the sun hammers that south slope in the afternoon. I would expect more at the next warm spell after this current storm cycle.

    Number of slides
    1
    Number caught
    0
    Number buried
    0
    Avalanche Type
    Wet slab avalanche
    Trigger
    Natural trigger
    R size
    3
    D size
    2
    Bed Surface
    O - Old snow
    Problem Type
    Wet Snow
    Slab Thickness
    12.0 inches
    Vertical Fall
    100ft
    Slab Width
    35.00ft
    Images
    Wet slide in Middle Cottonwood
    Slide crossing trail at creek crossing, Middle Cottonwood
    Snow Observation Source
    Wet slide in Lower Middle Cottonwood Canyon
    Slab Thickness units
    inches
    Single / Multiple / Red Flag
    Single Avalanche
    Advisory Year
    22-23

    A runner reported on 3/24/23: "I observed the results of a wet slide avalanche within the first mile of Middle Cottonwood Creek Trail. The slide came down from the south side of the canyon (north facing), and crossed the trail at about 4-5' deep and 10' across at the trail with debris and into the creek at the creek crossing about .75 mile from the trailhead. The crown was only about 100' up the side of the canyon. The avalanche would've occurred earlier in the week, there was just the skiff of snow on it from the previous light snow (22nd?)....

    Avalanche Details: Wet slide in Lower Middle Cottonwood Canyon
    Bridger Range, 2023-03-25
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    • A runner reported on 3/24/23: "I observed the results of a wet slide avalanche within the first mile of Middle Cottonwood Creek Trail. The slide came down from the south side of the canyon (north facing), and crossed the trail at about 4-5' deep and 10' across at the trail with debris and into the creek at the creek crossing about .75 mile from the trailhead. The crown was only about 100' up the side of the canyon. The avalanche would've occurred earlier in the week, there was just the skiff of snow on it from the previous light snow (22nd?)....

    Avalanche Details: Wet slide in Lower Middle Cottonwood Canyon
    Bridger Range, 2023-03-25
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