23-24

GNFAC Avalanche Forecast for Fri Oct 27, 2023

Snowpack and Avalanche Discussion

<p><span><span><span><span><span><span>There is enough new snow for the ambitious few to head out for some early season turns, and for everyone else the snow is a reminder to tune up sleds and skis, check avalanche rescue gear for damage, and put fresh batteries in our beacon. If you are planning to travel in the snowy mountains this weekend, whether skiing, ice-climbing or hunting, before crossing steep slopes consider the potential for avalanches. Be especially cautious of slopes that have fresh drifts of snow and slopes with old layers of snow underneath the new snow.</span></span></span></span></span></span></p>

<p><span><span><span><span><span><span>The first avalanches of the season occurred last week (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/images/23/avalanche-mt-blackmore-hyalite"><…. Blackmore</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>, </span></span></span></span></span></span><a href="https://www.mtavalanche.com/images/23/avalanche-pine-creek"><span><span… Creek</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>), and more will probably occur this weekend with the new snow. Avalanches have injured and killed people in past early seasons (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/accidents?page=3"><span><span><span><strong… reports</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>). If you plan to travel in the backcountry, prepare for avalanches like you would mid-winter:</span></span></span></span></span></span></p>

<ul>
<li><span><span><span><span><span><span>Carry a beacon, shovel and&nbsp;</span></span></span></span></span></span><a href="https://avalanche.org/avalanche-encylopedia/probe"><span><span><span><s… a minimum. Helmets are a necessity as well.&nbsp;</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>Travel one at a time in avalanche terrain (all snow covered slopes steeper than 30 degrees).</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>Avoid steep slopes with fresh drifts of snow, especially where a slide could push you into rocks, trees or pile up deep in a confined gully.</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>Cracking and collapsing of the snow are bulls-eye information that the snow is unstable, and clear signs to avoid steep slopes.</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>As the snow piles up it is a good idea to dig to see the layers below the recent snow. Avoid steep slopes if you find weak, sugary snow underneath new snow or drifted snow.</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>Consider refreshing your avalanche skills with a class or two this season. See our </span></span></span></span></span></span><a href="https://www.mtavalanche.com/workshops/calendar"><span><span><span><stro… calendar</span></span></u></span></strong></span></span></span></a><span><span><span><strong><span><span> </span></span></strong></span></span></span><span><span><span><span><span><span>for a list of all local classes.</span></span></span></span></span></span></li>
</ul>

<p><span><span><span><span><span><span>We will share observations through social media and issue snowpack and weather updates when necessary. If you get out in the mountains please share your avalanche, snowpack and weather observations which greatly help us understand what is going on out there. Please submit observations via our </span></span></span></span></span></span><a href="blank"><span><span><span><strong><span><u><span><span>website</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>, email (</span></span></span></span></span></span><a href="mailto:mtavalanche@gmail.com"><span><span><span><strong><span><u><span>…;), phone (406-587-6984), or Instagram (#gnfacobs).</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.

Three storm layers present up high

Date
Activity
Skiing

Three clear storm layers and wind effect piling up larger drifts. Snow height at 9k ft averaged 85-90cm. The rain layer in the center of the pack creating a sheer surface that with more load could trigger the third storm layer.

Region
Out of Advisory Area
Location (from list)
Pine Creek
Observer Name
Oskar Robinson

GNFAC Avalanche Forecast for Tue Oct 24, 2023

Snowpack and Avalanche Discussion

<p><span><span><span><span><span><span>Snow is already on the ground on some high elevation slopes, and we have received our first reports of avalanches which occurred last week (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/images/23/avalanche-mt-blackmore-hyalite"><…. Blackmore</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>, </span></span></span></span></span></span><a href="https://www.mtavalanche.com/images/23/avalanche-pine-creek"><span><span… Creek</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>). Before your first day on the snow, take time to ensure your avalanche rescue gear is working properly and consider refreshing your avalanche skills with a class or two this season. See our </span></span></span></span></span></span><a href="https://www.mtavalanche.com/workshops/calendar"><span><span><span><stro… calendar</span></span></u></span></strong></span></span></span></a><span><span><span><strong><span><span> </span></span></strong></span></span></span><span><span><span><span><span><span>for a list of all local classes.</span></span></span></span></span></span></p>

<p><span><span><span><span><span><span>This time of year avalanches are not uncommon, and have injured and killed people in past early seasons (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/accidents?page=3"><span><span><span><strong… reports</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>). Starting this week, if you plan to travel in the backcountry, whether skiing, climbing or hunting, prepare for avalanches like you would mid-winter.</span></span></span></span></span></span></p>

<ul>
<li><span><span><span><span><span><span>Carry a beacon, shovel and probe&nbsp;</span></span></span></span></span></span><span><span><span><span><span><span>at a minimum. Helmets are a necessity as well.&nbsp;</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>Travel one at a time in avalanche terrain (all snow covered slopes steeper than 30 degrees).</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>Avoid steep slopes with fresh drifts of snow, especially where a slide could push you into rocks, trees or pile up deep in a confined gully.</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>Cracking and collapsing of the snow are bulls-eye information that the snow is unstable, and clear signs to avoid steep slopes.</span></span></span></span></span></span></li>
<li><span><span><span><span><span><span>As the snow piles up it is a good idea to dig to see the layers below the recent snow. Avoid steep slopes if you find weak, sugary snow underneath new snow or drifted snow.</span></span></span></span></span></span></li>
</ul>

<p><span><span><span><span><span><span>We are preparing for winter and beginning to collect snowpack information. If you have an avalanche, snowpack or weather observation to share. Please submit them via our </span></span></span></span></span></span><a href="blank"><span><span><span><strong><span><u><span><span>website</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>, email (</span></span></span></span></span></span><a href="mailto:mtavalanche@gmail.com"><span><span><span><strong><span><u><span>…;), phone (406-587-6984), or Instagram (#gnfacobs).</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.

Wet slide and wind slabs at Pine Creek

Black Mountain
Out of Advisory Area
Code
WL-N-R2-D2-G
Elevation
9500
Aspect
NW
Latitude
45.16280
Longitude
-111.52900
Notes

From IG: “Pine creek today, some small wind slabs and a full depth wet slide off black mountain”

Number of slides
3
Number caught
0
Number buried
0
Avalanche Type
Wet loose-snow avalanche
Trigger
Natural trigger
R size
2
D size
2
Bed Surface
G - Ground
Problem Type
Wet Snow
Snow Observation Source
Slab Thickness units
centimeters
Single / Multiple / Red Flag
Multiple Avalanches
Advisory Year

Avalanche at Pine Creek

Date

From IG: “Pine creek today, some small wind slabs and a full depth wet slide off black mountain”

Region
Out of Advisory Area
Location (from list)
Black Mountain
Observer Name
Ben Farrell