Tetons

Backcountry skiers and riders have the potential to trigger avalanches with depths to 18 inches on a variety of aspects in steep avalanche terrain.  Warning signs for areas to avoid include recent avalanche activity on similar slopes, shooting cracks,  and feelings of collapse within the snowpack. If skies are clearer and temperatures are higher than expected, the likelihood of triggering a slab avalanche will increase and wet slides may become possible on solar aspects.

There is a simple rule of thumb that dry periods create future avalanche problems. After a rare month-long dry period that ended on the 9th, that rule is in full effect right now throughout western Wyoming. One to two feet of snow fell this week on a snowpack that was topped with faceted snow at all elevations in shaded terrain. South facing terrain had hard crusts from sunlight and inversion temperatures and a wind crust could be found in exposed terrain above 10000’.  Surface hoar was also present, particularly at mid and low elevations. During a storm cycle with fairly light winds, natural and remotely triggered avalanches were reported. If more snow had fallen, avalanche activity would have been widespread. As the days continue, the likelihood of triggering an avalanche will decrease and become more and more limited to north facing terrain. This makes for a tricky time as many slopes are gaining strength while others remain unstable. Use caution out there and use a thoughtful, investigative approach before entering steep terrain. Happy Valentine’s Day!

If out recreating in the Teton forecast area today, please consider posting an observation to help the community make informed and safe decisions in the backcountry.