Tetons

Five am air temperatures are similar to yesterday morning. Today's winds will be light. Clear skies and temperatures in the 20's have allowed snow surfaces to freeze overnight. Those snow surfaces will soften as the day warms and increase the wet snow avalanche hazard. Shallow wet slides could be human triggered on steep slopes and in cliff areas during the warmest portion of the day. Dry snow avalanche hazards are limited to isolated pockets of shallow wind slab less than a foot deep. Even small slides can sweep backcountry travelers over cliffs, carry them down very steep sustained couloirs or bury them in terrain traps. Monitor conditions for increasing wet snow avalanche hazard and avoid avalanche prone terrain after snow surfaces become too soft.

Conditions will be partly to mostly cloudy and slightly cooler with scattered snow showers on Tuesday. Snow shower activity is anticipated to favor the southern portion of the Greys River areas. Accumulations of a trace to an inch or two are possible. Temperatures are forecast to fall to near 20 degrees overnight and rise into the upper 20’s and 30’s in the mountains. Winds will be light at 5 to 15 miles per hour from the northwest to east. The general avalanche hazard is expected to be low. Wet snow avalanche hazards will increase on steep terrain features during the warmest portions of the day. In the Togwotee Pass and Greys River areas deep persistent slab avalanches are unlikely but cannot be ruled out. Some potential may remain for low likelihood, high consequence slab avalanches to be triggered by snowmachines or cornice failures. If triggered these avalanches could be 3 to 5 feet deep.