Snowpack and Avalanche Discussion
<p><span><span><span><span><span><span>Avalanche conditions remain dangerous. Over the last week there have been a series of really big, natural and human triggered avalanches (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/node/31432"><span><span><span><strong><span… video</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/ZaqRmvvNp9c"><span><span><span><strong><span><u><span>… video</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/node/31343"><span><span><span><strong><span… photos</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/snow-observations-list?field_regions_simila… City activity list</span></span></u></span></strong></span></span></span></a><span><span><span><span><span><span>). These slides are breaking on the weak layers near the base of the snowpack. Yesterday there was another, outside of our advisory area in the Absaroka Range, that broke 3-4 ft deep, 1/4 mile wide and was triggered from hundreds of feet away (</span></span></span></span></span></span><a href="https://www.mtavalanche.com/node/31460"><span><span><span><strong><span…;).</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Slides may also break beneath wind drifts that formed from the 6”-10” of snow that fell mid-week. Warm temperatures and sun today will also likely lead to loose wet avalanches.</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Be patient. Avalanches have been breaking on the basal weak layers for days after the end of storms this year. Things will likely start to stabilize with a stretch of high pressure ahead of us, but we’re not there yet. </span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Human triggered avalanches are likely and the avalanche danger is CONSIDERABLE.</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>The general snowpack structure is the same in the Lionhead and Island Park areas as elsewhere, the snowpack is just a bit deeper so it’s getting harder to trigger slides and we’ve seen less recent avalanche activity. Getting into steep terrain still means rolling the dice with the possibility of triggering a huge, likely unsurvivable avalanche. If you’re going to enter the casino, stack the odds in your favor by traveling one at a time, carrying rescue gear and having a partner watching from a safe spot while you’re on steep slopes. Avalanches could also break in wind drifts of recent snow and be wary of a wetting snow surface bringing wet loose avalanche concerns to the table. </span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>Human-triggered avalanches are possible and the avalanche danger is rated MODERATE.</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>In the Bridger Range we have seen less recent loading and little recent avalanche activity on deeper weak layers. The weak snow is still there, but the issues you’re more likely to encounter are higher in the snowpack. Wind drifts and wet surface snow could cause smaller, but still consequential, avalanches. Be on the lookout for cracking in wind drifts and wet snow more than a couple inches deep as signs to get out of steep terrain. Choose slopes with fewer obstacles in the runout and stick to good travel practices in case you do end up being the unlucky one who triggers a bigger slide.</span></span></span></span></span></span></p>
<p><span><span><span><span><span><span>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.