West Slopes South

Avalanche hazard should remain fairly minimal on Thursday even with some new snow. That said, if you find more snow accumulating or windier conditions than expected on the volcanoes, the hazard could be increasing. Continue to be prepared for firm snow surfaces that may be hidden under a dusting of new snow.

The volcanoes should once again receive higher precipitation totals in the West South, as a short-lived weather event hovers over our zone on Wednesday night and Thursday. At this point, we don’t see enough precipitation or wind associated with this event to increase the hazard level for Thursday, but weather forecasts and avalanche forecasters have been known to be wrong. So if you find yourself on the volcanoes on Thursday, take a look for yourself. If you find that 6 inches or more of snow have accumulated or that the wind is blowing snow around more than predicted, the avalanche hazard could be increased and you should think about human triggered avalanches in the form of Wind Slabs or Dry Loose avalanches.  Regardless of your location, take note of how any new snow is being affected by the wind and how it has bonded to the old snow surface. Snow could run fast and far on previously firm icy slopes or be wind-drifted into larger piles that you should avoid. Any new snow will increase the potential for avalanches compared to the past few days.

New snow should be falling on a strong snowpack structure made up of multiple crusts, refrozen wet snow, and strongly rounded grains. A firm surface has been reported throughout the West South zone, with areas of softer snow in some locations. These firm slopes have been driving some messaging about difficult travel conditions the past few days, and rightfully so. On Thursday, you should continue to travel with caution, as the new snow may be just enough to mask some of these firm and icy surfaces. 

During the ongoing Covid-19 pandemic, continue to follow the latest guidance from local, state, and federal health officials. Avoid unnecessary risks that could impact first responders and stress medical resources.  Wear a mask when appropriate, practice social distancing, and consider recreating closer to home.