The National Weather Service is cautioning recreationists to avoid a number of trails in the Sun Valley area.
The NWS office in Boise has issued an avalanche warning for the areas of Soldier, Smokey, Boulder and Sawtooth mountains.
"New snowfall and strong winds have produced unstable snow and avalanches are likely on steep, snow-covered slopes and gullies in the mountains,” wrote the NWS. “It will be possible for slides to reach exposed roadways and trails. Avoid travel and recreation in avalanche terrain. Be aware of sloping terrain, and avoid avalanche path runout areas."
A spokesman for the Sawtooth Avalanche Center added that moderate to strong winds, coupled with one-and-a-half to three feet of new snow triggered the avalanche warning. The avalanche center said the warning was extended for mountains around Fairfield, Stanley and Galena Summit.
Meanwhile, a 21-year-old Brigham Young University student was killed Feb. 8 when she was caught in an avalanche while snowshoeing in Utah's American Fork Canyon. Rescuers said the student was buried in the avalanche for about 40 minutes before she could be pulled out. She was rushed to a Provo hospital but died a short time later. Utah officials reported at least 14 avalanches in the region over the weekend.