Tetons

Areas of unstable snow persist at the mid and upper elevations. Yesterday, backcountry travelers were able to easily trigger six to eighteen inch soft slabs on a variety of aspects. Similar events remain possible today. As the day warms, these slabs will become more susceptible to failure along with the chance of loose snow sluffs on sunlit aspects. With the exception of very shallow wet slides, avalanches are unlikely at the lower elevations.

Monday night the Tetons will receive periods of snow with accumulations to 5 inches by dawn Tuesday. Winds will be southwesterly overnight increasing from 25 to 40 mile per hour averages then veer to westerly and slow slightly during the day Tuesday. Snow will continue through the day with totals by Tuesday night in the six to twelve inch range. Temperatures will be in the single digits by Tuesday morning then climb into the upper teens. The Greys River area is forecasted to receive four inches of snow by Tuesday afternoon and the Togwotee Pass area four to six inches. Snow and strong winds will develop easily triggered soft surface slabs at upper elevations in the Tetons. Slab depths will increase during the day with the hazard approaching Considerable by evening. The Greys river area will receive less snow and the hazard is forecasted to be Moderate with a chance of triggering surface slabs to a foot in depth on steep, lee slopes. The Togwotee Pass area will begin the day at Low hazard and possibly reach the Moderate level with significant snow and wind.