Trip Planning for Cooke City Area

as of 5:00 am
Mar 14″ | 25-60 SW
Feb 29 2″ | 10-24 SW
Feb 28 1″ | 13-34 W
10020′     03/01 at 03:00
20.4℉
SW - 22mph
Gusts 58 mph
9100′     03/02 at 02:00
17℉
73″ Depth
Primary Problem: Wind-Drifted Snow
Bottom Line: It is snowing and blowing and human triggered avalanches are likely. In places with more new snow, avalanches in that new snow will be easily triggered. Avalanches breaking in drifts are the likeliest problem you’ll encounter today and would be large enough to bury you. The weak layers that have been consistently avalanching for the last two months are also being loaded again. Keep your slope angles less than 30 degrees while we wait and see how they handle this loading event.

Past 5 Days

Mon Feb 26

High
Tue Feb 27

High
Wed Feb 28

Considerable
Thu Feb 29

Considerable
Fri Mar 1

Considerable

Relevant Avalanche Activity

Cooke City
Republic Creek
Windslabs in Republic Creek
Incident details include images
Republic Creek
N-R2-D1.5-I
Coordinates: 44.9855, -109.9410
Caught: 0 ; Buried: 0

From obs on 02/29/2024: "observed 2 crowns in wind loaded terrain. One at the end of Woody ridge on a north facing sub ridge (Peterson’s prow ) and the other on an East facing Ridge seen from the top of Wyoming bowl. "


More Avalanche Details
Cooke City
COOKE CITY
Avalanches North of Cooke City
Incident details include images
COOKE CITY
N
Coordinates: 45.0202, -109.9380
Caught: 0 ; Buried: 0

From email: "We didn't see any avalanches on E Henderson or E Sheep with decent vis on the ride in. One large avalanche on a heavily wind loaded slope below a huge cornice north of Scotch Bonnet. That one looked like it broke deeper/in the old snow, about 100' wide. Also saw one wind slab on a small slope north of Long Lake. 14-16" deep, 20' wide, and within the fresh wind slab. "


More Avalanche Details
Cooke City
Miller Ridge
Avalanches on Miller Ridge
Incident details include images
Miller Ridge
N-R2-D2-O
Aspect: N
Coordinates: 45.0423, -109.9650
Caught: 0 ; Buried: 0

From IG message: “These are on the ridge between Miller Mtn and Sunset Peak on North aspect. All of the North facing ridge of Miller Creek up to Miller Mountain had similar slides too. The crowns filled back in overnight… The North facing ridge on Sheep Mtn slid as well, not sure on the trigger but a rider from another group send the following image of the Sheep slide


More Avalanche Details

Relevant Photos

Displaying 1 - 40
  • Skiers south of Cooke City observed a recent wind slab avalanche on north-facing terrain near Woody Ridge. This avalanche likely happened in the last 24 hours. Photo: G. Roe

  • Skiers south of Cooke City observed a recent wind slab avalanche that happened on east-facing terrain near Republic Creek. This avalanche likely happened in the last 24 hours. Photo: G. Roe

     

  • Riders N. of Cooke City saw a recent avalanche north of Scotch Bonnet that broke 100' and several feet deep. Photo: A. Marienthal

  • Riders north of Cooke City saw a recent windslab that broke 14-16" deep, and 20' wide. Photo: A. Marienthal

  • A group reported many avalanches on the northern aspect of Miller Ridge. Some had filled back in from wind drifted snow. Other crowns were crisp. Photo: J. Padilla

  • Skiers on West Woody Ridge triggered a wind-slab avalanche that failed 1 foot deep and 40 feet wide. The avalanche ran 300 feet. Photo: N. Dogg

  • Skiers on West Woody Ridge triggered a wind-slab avalanche that failed 1 foot deep and 40 feet wide. The avalanche ran 300 feet. Photo: N. Dogg

  • On 2/24/24: We saw a slide on the north end of Sheep Mtn. on a slope above the steep chute where people climb out of Goose Creek. This slide had not been reported previously and looked similar in age to the two triggered yesterday, so maybe broke naturally or human-triggered in last 24 hours. It broke near a scoured north facing ridgeline, 1-1.5' deep, 175' wide. HS-R3-D2-O. Photo: GNFAC

  • On 2/24/24: We saw a slide on the north end of Sheep Mtn. on a slope above the steep chute where people climb out of Goose Creek. This slide had not been reported previously and looked similar in age to the two triggered yesterday, so maybe broke naturally or human-triggered in last 24 hours. It broke near a scoured north facing ridgeline, 1-1.5' deep, 175' wide. HS-R3-D2-O. Photo: GNFAC

  • On 2/24/24: We saw another slide on the north end of Sheep Mtn. on a slope above the steep chute where people climb out of Goose Creek. This slide had not been reported previously and looked similar in age to the two triggered yesterday, so maybe broke naturally or human-triggered in last 24 hours. It broke near a scoured north facing ridgeline, 1-1.5' deep, 175' wide. HS-R3-D2-O. Photo: GNFAC

     

  • On 2/24/23 we got a pretty good look at the slides on Fisher Mtn. that were triggered yesterday. They appeared 2-3 feet deep, and the debris was very hard. Crowns were already at least half drifted in. Photo: GNFAC

  • Riders on 02/23/2024 saw an avalanche that appeared to of broken naturally. However, a rider on 02/23/2024 triggered a steep slope around the corner and could likely have remotely triggered this avalanche as well. Photo: D.Shelley

  • A snowmobiler triggered a large avalanche on the north side of Fisher Mountain on 02/23/2024. He was caught and carried downhill but luckily was not buried. Photo: D.Shelley

  • A snowmobiler triggered a large avalanche on the north side of Fisher Mountain on 02/23/2024. He was caught and carried downhill but luckily was not buried. Photo: D.Shelley

  • From obs: "Photo of an avalanche observed yesterday (2/21) on the SW face of Sawtooth Mountain at about 10,600’. Looks to be a few days old, but hard to tell since all skier traffic from the weekend has been erased with Tuesday’s wind/precip. If you look closely, you can see the crown extends across the entire face." Photo: A. Joy

  • Riders on 02/18/2024 saw an avalanche that was triggered a few days prior on 02/16/2024. 

  • Riders saw recently triggered slides that were likely triggered by snowmobilers on 02/17/2024. 

  • A rider on 02/18/2024 saw a recent avalanche that was likely remotely triggered by a snowmobiler the day before on 02/17/2024. 

  • Close to the ridge and the starting zones of nearby avalanche paths, we triggered a large collapse that sent shooting cracks out a couple hundred feet. If the slope had been any steeper, we would have triggered an avalanche. Photo: GNFAC

  • Close to the ridge and the starting zones of nearby avalanche paths, we triggered a large collapse that sent shooting cracks out a couple hundred feet. Photo: GNFAC

  • From email: "A large avalanche. crown propogated through the cliffs and looked to be about 200' wide and 1 1/2-2 ft. deep. Debris was no longer visible so I suspect this ran sometime during or shortly after the storm. (02/15)." Photo: G. Roe

  • From email: "A large avalanche. crown propogated through the cliffs and looked to be about 200' wide and 1 1/2-2 ft. deep. Debris was no longer visible so I suspect this ran sometime during or shortly after the storm. (02/15)." Photo: G. Roe

  • A rider triggered a small avalanche on a steep rollover. Photo: GNFAC

  • From ob on 02/17/2024: "From woody ridge, we observed a large avalanche across the republic creek drainage (not sure what the peak is called but see the coordinates). I heard it first since it sounded like thunder or a plane, and then saw a huge cloud of snow moving down the mountain across the drainage.  We do not know if it was natural or triggered by someone." Photo: B. Huyard

     

     

  • From email on 02/18/2024: "Photo natural avalanche on a NW aspect at 9000', taken north of Cooke City today. It likely happened right around Feb. 15th."

  • Riders north of Cooke City observed a recent avlanche that appeared to be triggered by snowmobilers on the east side of Henderson Mountain. Photo: Z. Peterson

  • Riders north of Cooke City observed a recent avlanche that appeared to be triggered by snowmobilers on the east side of Henderson Mountain. Photo: Z. Peterson

  • Riders triggered a large avalanche on 02/16/2024 on the north side of Scotch Bonnet Mountain. Photo: Z. Peterson

  • A natural avalanche on the north side of Chimney Rock happened early in the morning on 02/16/2024. Photo Z. Peterson

  • A natural avalanche on the east side of Wolverine Peak was observed on 02/16/2024 and happened at the start of or during a recent storm on 02/15/2024. Photo: Z. Peterson

  • A snowmobiler on 02/16/2024 triggered a large avalanche on the north side of Scotch Bonnet Mountain. Photo: D. Green

  • Natural avlanche observed on 02/16/2024 that happened either early in the morning on the 16th or the night before on the 15th. Photo: J. Mundt

  • A recent avalanche on the east side of Henderson Moutain. This avalanche likely happened a few days ago around 02/11/2024. Photo: B. Zavora 

  • Photo: A. Mulkey

  • Photo: A. Mulkey 

  • From email: "Natural avalanche from yesterday evening or last night.  

    North facing aspect, with an interesting 3 tiered crown beginning around 8900'." Photo: B. Fredlund

  • From email: "Natural avalanche from yesterday evening or last night.  

    North facing aspect, with an interesting 3 tiered crown beginning around 8900'." Photo: B. Fredlund 

  • From obs: "We observed three similar avalanches on Mt Abundance today (2/11). All were at about 9,900' and on NE-NW aspects. We were able to safely look at the crown of the first one, which was ~150' wide, 55cm deep, and with an HS of 145. It failed on 1-2 cm buried surface hoar. The other avalanches were on shallow unsupported rocky terrain. All were remote triggered from low angle terrain above, 20-50' away. One of the avalanches sympathetically released a gully and ran 800'." Photo: A.

  • From obs: "We observed three similar avalanches on Mt Abundance today (2/11). All were at about 9,900' and on NE-NW aspects. We were able to safely look at the crown of the first one, which was ~150' wide, 55cm deep, and with an HS of 145. It failed on 1-2 cm buried surface hoar. The other avalanches were on shallow unsupported rocky terrain. All were remote triggered from low angle terrain above, 20-50' away. One of the avalanches sympathetically released a gully and ran 800'." Photo: A.

  • From obs: "We observed three similar avalanches on Mt Abundance today (2/11). All were at about 9,900' and on NE-NW aspects. We were able to safely look at the crown of the first one, which was ~150' wide, 55cm deep, and with an HS of 145. It failed on 1-2 cm buried surface hoar. The other avalanches were on shallow unsupported rocky terrain. All were remote triggered from low angle terrain above, 20-50' away. One of the avalanches sympathetically released a gully and ran 800'." Photo: A.

Videos- Cooke City Area

WebCams


Soda Butte Lodge, looking West

Soda Butte Lodge, looking East

Snowpit Profiles- Cooke City Area

 

Select a snowpit on the map to view the profile image

Weather Forecast Cooke City Area

Extended Forecast for

2 Miles NNE Cooke City MT

Winter Storm Warning until March 2, 06:00pmClick here for hazard details and duration Winter Storm Warning
  •  Winter Storm Warning until March 2, 06:00pm

    NOW until
    6:00pm Sat

    Winter Storm Warning

  • Overnight

    Overnight: Snow.  Steady temperature around 21. South southwest wind around 8 mph.  Chance of precipitation is 90%. Total nighttime snow accumulation of around 5 inches.

    Snow

    Low: 21 °F

  • Saturday

    Saturday: Snow. The snow could be heavy at times.  Areas of blowing snow after 11am. Temperature rising to near 27 by 11am, then falling to around 16 during the remainder of the day. Wind chill values as low as zero. Southwest wind 10 to 17 mph.  Chance of precipitation is 100%. New snow accumulation of around 6 inches.

    Heavy Snow
    and Areas
    Blowing Snow

    High: 27 °F⇓

  • Saturday
    Night

    Saturday Night: Snow likely, mainly before 8pm.  Patchy blowing snow before 2am. Mostly cloudy, with a low around 0. Wind chill values as low as -20. West southwest wind 14 to 18 mph, with gusts as high as 38 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Snow Likely
    and Patchy
    Blowing Snow

    Low: 0 °F

  • Sunday

    Sunday: Snow likely, mainly after 11am.  Mostly cloudy and cold, with a high near 14. Wind chill values as low as -20. West southwest wind 10 to 14 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Snow Likely

    High: 14 °F

  • Sunday
    Night

    Sunday Night: Snow likely, mainly before 11pm.  Mostly cloudy, with a steady temperature around 4. West southwest wind around 11 mph.  Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Snow Likely

    Low: 4 °F

  • Monday

    Monday: Snow, mainly after 11am.  High near 15. Southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Snow

    High: 15 °F

  • Monday
    Night

    Monday Night: Snow likely, mainly before 11pm.  Mostly cloudy, with a low around 5. Southwest wind 18 to 25 mph, with gusts as high as 38 mph.  Chance of precipitation is 60%. New snow accumulation of around 2 inches.

    Snow Likely

    Low: 5 °F

  • Tuesday

    Tuesday: Snow, mainly after 11am.  High near 22. Southwest wind 18 to 24 mph.  Chance of precipitation is 80%.

    Snow

    High: 22 °F

The Last Word

Clear weather and temperature fluctuations can make a weak layer in the top few cm of the snowpack called near-surface faceting. There are 3 dominant types which are explained in Bruce Jamieson’s new video featuring Karl Birkeland, Doug Chabot, Ed Adams, Mike Cooperstein, Ethan Greene and Mark Staples.

2 / 29 / 24  <<  
 
this forecast
 
  >>  This is the most recent forecast.