Skiers a few days ago saw several deep natural avalanches near the head of Swan Creek. These avalanches broke 2-5' deep, 2000' wide, and ran "full track". The exact date of when these avalanches happened is unknown but they likely happened over a week ago in the first few days of March. Photo: S. Reinsel
Trip Planning for Southern Gallatin
Past 5 Days
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Relevant Photos
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Skiers a few days ago saw several deep natural avalanches near the head of Swan Creek. These avalanches broke 2-5' deep, 2000' wide, and ran "full track". The exact date of when these avalanches happened is unknown but they likely happened over a week ago in the first few days of March. Photo: S. Reinsel
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Riders saw a large crack in the snow near the Cabin Creek Cabin in the S. Madison Range. This is a red flag for unstable conditions. Anonymous
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Photo and observation from 01/20
From obs: "Large roller balls were observed in avalanche terrain on a SE aspect at 8,300'. Alongside this observation, rather wet, sticky snow was observed throughout the tour, causing multiple glopping incidents on our skins." Photo: E. Webb
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Skiers on 01/20 saw a natural avalanche that happened the day before on 01/19. Photo: E. Webb
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From observations on 01/20:
Shooting cracks above a cornice that created a small avalanche. Photo: D. Halama
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From observation on 01/20:
While approaching a cornice skiers collapsed the slope and triggered a small cornice. Photo: E. Webb
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A small avalanche was seen in Black Bear Canyon on 01/14. This was a recent avalanche that happened today or yesterday 01/13.
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Cracking at Fawn Pass this was accompanied by multiple collapses during the tour. Photo: S. Reinsel
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Large surface near Little Bear. Photo: JR Mooney
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From IG on 12/10: "2 slides we triggered remotely in tepee yesterday"
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From obs: "Dug into the hillside right before going up the creek. Snow pack was 75 cm deep consisting of three layers. Bottom 35cm is obviously faceted, grain size is around 2mm. Very thin ice crust at around 35cm. Upper 35 cm of snow is brand new snow from this current storm, precipitation particles, low density, with minor wind effect. Performed a quick Compression Test and the ice crust layer failed on the second tap." Photo: S. Gralla
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From IG: “Pine creek today, some small wind slabs and a full depth wet slide off black mountain”
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From IG: “Pine creek today (10/21), some small wind slabs and a full depth wet slide off black mountain”
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From obs. "Was out alpine climbing today and observed the north face of Blackmore had slid already."
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Videos- Southern Gallatin
Weather Stations- Southern Gallatin
Weather Forecast Southern Gallatin
Extended Forecast for17 Miles SE Big Sky MT
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Overnight
Mostly Cloudy
Low: 19 °F
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Friday
Partly Sunny
High: 36 °F
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Friday
NightPartly Cloudy
then Slight
Chance Snow
ShowersLow: 19 °F
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Saturday
Chance Snow
ShowersHigh: 36 °F
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Saturday
NightSlight Chance
Snow ShowersLow: 18 °F
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Sunday
Snow Showers
Likely and
BreezyHigh: 34 °F
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Sunday
NightChance Snow
Showers then
Partly CloudyLow: 17 °F
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Monday
Mostly Sunny
High: 42 °F
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Monday
NightMostly Clear
Low: 23 °F
The Last Word
If you have a few minutes, take a survey on how you interpreting avalanche forecast information in hopes of improving avalanche forecasting methods.