Tetons

The General Avalanche Hazard is CONSIDERABLE at Upper and Mid elevations. 15 to 20 inches of new snow over the past two days have been driven by strong Southwest winds creating easily triggered soft slabs two to three feet in depth on lee slopes at Upper elevations. On all exposures the new snow sits on smooth crusts where slabs and sloughs will rapidly entrain more snow and travel further than usual. With daybreak the strong April sun will rapidly warm the snow and slabs will be easier to release and skier and naturally triggered loose, then wet-loose slides will be likely. At Low elevations the Hazard is LOW as little snow remains.

A weak ridge over the region will allow disturbances to bring a chance of light snow tonight into Wednesday. Skies will be mostly cloudy with morning lows near twenty and daytime highs in the upper thirties. Ridge crest winds will be Westerly at 20 to 25 miles per hour.The General Avalanche hazard in the Tetons and Greys River areas will remain CONSIDERABLE at Upper elevations. Daytime highs Tuesday were not warm enough to affect the sliding surfaces under 12 to 18 inches of snow and slabs will continue to be very sensitive to release on lee slopes. As the day warms slabs will be easier to trigger and loose and wet-loose slides will be likely on sunlit aspects as the first above freezing temperatures since the new snow fell are reached. The smooth crusts underlying the new snow will allow slides to rapidly build to dangerous size. In the Togwotee Pass area the hazard will be MODERATE as less new snow accumulated. Similar conditions exist but on a smaller, though not necessarily less dangerous, scale.