22-23

GNFAC Avalanche Forecast for Thu Oct 20, 2022

Snowpack and Avalanche Discussion

<p>Before your first day on the snow, whether you chase the first storm or wait until there is a solid base, take time to ensure your avalanche rescue gear is working properly and refresh your avalanche skills with a class or two. See our <a href="https://www.mtavalanche.com/workshops/calendar"><strong><u>education calendar</u></strong></a><strong> </strong>for an up to date list of all local classes.&nbsp;</p>

<p>As soon as snow starts to accumulate avalanches will become possible. Avalanches this time of year are not uncommon, and have injured and killed people in past seasons (<a href="https://www.mtavalanche.com/accidents?page=3"><strong><u>accident reports</u></strong></a>). Starting this weekend, if you plan to travel in the backcountry, whether skiing, climbing or hunting, prepare for avalanches like you would mid-winter.</p>

<ul>
<li>Carry a beacon, shovel and&nbsp;<a href="https://avalanche.org/avalanche-encylopedia/probe"><u>probe</u></a>&nbs… a minimum. Helmets are a necessity as well.&nbsp;</li>
<li>Travel one at a time in avalanche terrain (all snow covered slopes steeper than 30*).</li>
<li>Avoid steep slopes with fresh drifts of snow, especially where even a small slide could push you into rocks or trees or pile up deep in a confined gully.</li>
<li>Cracking and collapsing of the snow are bulls-eye information that the snow is unstable, and clear signs to avoid steep slopes.</li>
<li>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.</li>
</ul>

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

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

New Snow Depth Sensor on Sawtelle Peak

Date

Ian and I completed the setup of a SNOdar snow depth sensor on Sawtelle Peak in the Centennials. Located at 8800 feet elevation. The sensor will record total snow depth and 24 hr snowfall. Data will be displayed on our website soon at: http://www.mtavalanche.com/weaterh/stations/sawtelle-snow.

The snowpack is non-existent in this area. I think the only snow I could see was the north summit snowfield on Lone Peak from the drive.

Region
Island Park
Location (from list)
Sawtelle Peak
Observer Name
Alex Marienthal

Reply-To address problem is resolved

Date
Activity
Skiing

There were some obscure changes to one of the mail sending modules which prevented out reply-to from working. this issue may be resolved with this test.

Hitting 'Reply' to this message should go to jim.earl@montanaice.com

Observer Name
Jim Tester Earl

Winter is coming in Big Sky

Date

Fresh dusting on the peaks, looks like snow line around 9500’. I bet Al could try to find a way to ski something up there but the rest of you are probably smarter than that. 
 

Current conditions at 7800’, NE aspect a mile or two below the second yellowmule:

Surface is very wet with foot penetration 10-20cm mud. Wind light gusting moderate out of the west, air temp 69 degrees F with scattered clouds.

I got one shooting crack in a boulder I was setting, but luckily the fracture did not propagate all the way across the rock. Stability for that rock was poor but not representative of the rest of the area. Primary concern up here is bear activity. I would say natural bear incidents are possible with human-triggered attacks likely, especially if there is outdoor cooking or game processing involved. 

Region
Northern Madison
Location (from list)
Big Sky Resort
Observer Name
Andrew Schauer

Paros, Greece: Instability lurks 1234

Date
Activity
Ice Climbing

Temps are in the mid 80s and it's humid. Lots of tourists with money; lots of bikinis, lots of 6-packs, lots of bronze skin. I fit right in! right in

Region
Out of Advisory Area
Location (from list)
Fairy Lake
Observer Name
Doug Chabot