Tetons

Very strong southwest to west winds have formed new soft and hard surface slabs up to two feet in depth on leeward aspects. Yesterday these slabs were easily triggered by single skiers and were limited in extent at the lower elevations. They are expected to be less sensitive to triggers today. Hard slabs that are less sensitive to triggers pose the greater hazard as backcountry users may be able to get out onto them before they fail. A large avalanche triggered by snowmachines in the Salt River Range on Tuesday afternoon indicates the potential persists for deep dangerous slabs to be triggered in some areas.

Some light snow will be possible through Friday as high pressure builds across the region and a warm front lifts across the area. Moisture will be limited, so new snowfall amounts will remain light. Mountain temperatures will be in the 20's. Ridgetop winds will back to the southwest and increase to 25 to 39 MPH with higher gusts. AVALANCHE HAZARD FOR THE TETON and TOGWOTEE PASS/CONTINENTAL DIVIDE AREASThe general avalanche hazard is expected to be MODERATE on Friday. Surface slabs one to two in depth could be triggered on steep wind loaded aspects. Areas of drifted snow in and around steep cliffs areas are potential areas of instability. Deep slabs up to six feet in depth remain a threat especially to snow machines high marking in the starting zones of major avalanche paths. GREYS RIVER/SOUTHWEST TRAILS AREAThe general avalanche danger is expected to be CONSIDERABLE on Friday. Surface slabs up to two feet in depth exist on steep wind loaded aspects and together with large dangerous deep slabs pose a hazard especially for larger triggers such as snowmachines. Backcountry users are advised to consult area specific forecasts issued every morning as new information may become available and unexpected weather can change conditions.