TetonSnowInfo

Skies will be mostly clear

SITUATION
Skies were clear today. At dawn, temperatures were in the 20s and 30s. They rose into the 40s and 50s in the mountains and into the mid-60s in the valleys. Winds were light at 5 to 15 miles per hour and backed from the east and northeast to the north.

Repeated melt-freeze cycles have created spring conditions. Snow depths range from 8 to 12 feet at 9,000 feet. Bare ground can be found in most locations below an elevation of 7,000 feet.

Our last evening regional avalanche forecast of the 2017/18 season will be issued on Saturday, April 21. Thanks to all who have supported the avalanche center with donations, avalanche observations and field observations. The last morning avalanche hazard bulletins of the season will issued on Sunday, April 22. The center will continue to post avalanche events, avalanche observations, weekly snowpack summaries and operate weather stations through the month of May.


FORECAST FOR Saturday, April 21, 2018
Conditions will remain dry through the weekend. Clear skies will allow temperatures to drop into the mid to upper 20s overnight. Daytime highs will rise into the 40s and 50s in the mountains. Winds will back to the west and stay light at 5 to 10 miles per hour.

Very warm temperatures and abundant sunshine will create unstable conditions on steep snow covered slopes after snow surfaces soften. Wet loose slides are likely on steep slopes in the afternoon and wet slab avalanches are possible. The general avalanche hazard is expected to be LOW below an elevation of 10,500 feet in the early morning hours and increase to MODERATE after snow surfaces warm and then to CONSIDERABLE during the warmest portion of the day. Monitor conditions and avoid steep terrain after snow surfaces become unstable.

TREND FOR Sunday, April 22, 2018 AND Monday, April 23, 2018
Sunday will be a repeat of Saturday with warmer temperatures. A cold front is forecast to move into the region on Sunday night. Daily increases in the wet snow avalanche hazard will occur.