Salt River and Wyoming Ranges

Yesterday, a snowboarder triggered a pocket of soft slab on a north facing aspect of Haystack at an elevation around 9,700 feet. While this slide was fairly small, it captured the rider, swept him over cliff bands and partially buried him. Skiers and riders might be able to trigger similar slides in very steep, high elevation, north facing terrain where the snowpack has not gone through significant melt-freeze cycles. Mountain temperatures are starting out a few degrees warmer than yesterday, and the threat of shallow wet loose slides could return in the afternoon if mostly sunny skies prevail. Monitor the sun’s effect on the snowpack, and transition to shaded terrain if crusts begin to breakdown.

( Discussion is generated from the previous day's afternoon forecast. )Overnight, the approaching weather disturbance will bring cloud cover and the chance for light snowfall. Partly cloudy skies are expected during the day on Monday. Nighttime lows in the mountains will be near 20 before rising into the mid to upper 20s in the afternoon. Westerly ridgetop winds will range from 10 to 15 miles per hour.The general avalanche hazard is expected to be Low on Monday morning. Cloud cover and warmer temperatures overnight will hamper the formation of stout crusts, and the threat of shallow wet slides could return in the afternoon if extended periods of sunshine occur. Get an early start, monitor warming conditions, and transition to shaded terrain if crusts start to breakdown.Grand Teton National Park has extended its bighorn sheep winter habitat closure on Mount Hunt and in the Prospector Mountain/Static Peak area from April 1 until April 30. Please respect these closures.