23-24

Low snow near sawtelle and Bootjack

Date
Activity
Snowmobiling

North of sawtelle peak between sawtelle and Bootjack. General observations of surprisingly low snowpack. Traveled from red rock parking lot to flats to Bootjack then south toward sawtelle then east to the flats and back north to red rock parking. The northern area had on average 6-10 inches, the southern area had 12-15 inches. Elevations were between 6300 and 7200 feet. Aspects were mostly NW to N to NE to E.

Region
Island Park
Location (from list)
Sawtelle Peak

Whumpfing and Recent Avalanches in Island Park

CENTENNIAL RANGE
Island Park
Code
N
Latitude
44.54890
Longitude
-111.48700
Notes

Snowmobilers saw multiple avalanches while riding in Island Park. These avalanches happened in the last week, however the exact date is unknown. 

From obs: "Lots of collapsing and whomping in the snow,  3 avalanches seen in hell roaring creek and performed a few snow pit tests with an ECTP21 with 2 failures at 25 cm and 70 cm."

Number of slides
3
Number caught
0
Number buried
0
Trigger
Natural trigger
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

GNFAC Avalanche Forecast for Fri Feb 2, 2024

Snowpack and Avalanche Discussion

<p><span><span><span><span><span><span>The remarkably weak snowpack remains unstable and human triggered avalanches are likely today. It is very unusual for the danger to remain elevated for so long after the last snowfall, but continued signs of instability and avalanches show us that we’re in an unusual situation. Riders in Island Park yesterday had widespread collapsing and saw several recent avalanches (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/node/30460"><span><span><span><strong><span…;). On Tuesday, an avalanche was triggered on Daisy Pass, near Cooke City (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/node/30425"><span><span><span><strong><span…;). On Monday, ice climbers approaching a climb near Pilot Peak triggered a large slide from 150 feet away (</span></span></span></span></span></span><a href="http://www.mtavalanche.com/node/30408"><span><span><span><strong><span>…;) and a rider was partially buried near Round Lake (</span></span></span></span></span></span><a href="https://youtu.be/cn0lR8XMzl4"><span><span><span><strong><span><u><span>…;). Many avalanches were triggered or broke naturally last weekend (</span></span></span></span></span></span><a href="https://youtu.be/BPzHM3837QY"><span><span><span><strong><span><u><span>… Mountain</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>, </span></span></span></span></span></span><a href="https://youtu.be/uKY34ndFmpw"><span><span><span><strong><span><u><span>… Ridge naturals</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>, </span></span></span></span></span></span><a href="https://youtu.be/ZTr2QiFzbcM"><span><span><span><strong><span><u><span>… Creek natural</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>.&nbsp;</span></span></span></span></span></span></p>

<p><span><span><span><span><span><span>Don’t try to thread the needle in avalanche terrain today. When you can trigger slides from hundreds of feet away it is very difficult to manage the avalanche hazard. Stay off of slopes steeper than 30 degrees and continue to be wary and cautious of crossing beneath these slopes as well. The avalanche danger is CONSIDERABLE.</span></span></span></span></span></span></p>

<p><span><span><span><span><span><span>Skies have clouded up and temperatures are a bit lower than they have been. Surface melting will be minimal today and we’re back to primarily being concerned with dry slab avalanches. With that said, water will remain in the lower snowpack on sunny slopes until we get a sustained period below freezing so wet avalanches aren’t entirely impossible today.</span></span></span></span></span></span></p>

<p><span><span><span><span><span><span>Unfortunately, our early season weak layers stuck around through this warmup and you could still trigger a dangerous slide breaking far above you. Yesterday, in the Taylor Fork I got quite unstable snowpack test scores and triggered a large collapse (</span></span></span></span></span></span><a href="https://www.youtube.com/watch?v=XET8nZ3b5hM"><span><span><span><strong>…;). I also found dry snow remaining reactive in the Bridgers on Tuesday (</span></span></span></span></span></span><a href="https://youtube.com/shorts/GsL_adXQYr8?feature=share"><span><span><span…;). The likelihood of triggering a big slide has diminished a little bit, but the consequences of doing so remains high.</span></span></span></span></span></span></p>

<p><span><span><span><span><span><span>Your options today are either to continue avoiding slopes steeper than 30 degrees, or carefully assessing the snowpack, watching for signs of instability, and accepting a not insignificant degree of residual risk.&nbsp;</span></span></span></span></span></span></p>

<p><span><span><span><span><span><span>Human triggered avalanches are possible and the avalanche danger is MODERATE.</span></span></span></span></span></span></p>

Upcoming Avalanche Education and Events

Our education calendar is full of awareness lectures and field courses. Check it out: Events and Education Calendar.

Slides in hell roaring with lots of whomping

Date
Activity
Snowmobiling

Lots of collapsing and whomping in the snow,  3 avalanches seen in hell roaring creek and performed a few snow pit tests with an ECTP21 with 2 failures at 25 cm and 70 cm. 

Region
Island Park
Location (from list)
CENTENNIAL RANGE
Observer Name
Brandon Schleicher

Wet Loose/Slabs in Beaver Creek, Taylor Fork

Taylor Fork
Southern Madison
Code
WS
Latitude
45.06070
Longitude
-111.27200
Notes

At the Taylor Fork wilderness boundary on an east-facing slope, we saw one natural wet slab avalanche and several smaller wet loose avalanches that likely happened yesterday during the warm sunny weather. 

 

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Wet slab avalanche
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Single Avalanche
Advisory Year