Photos

A natural avalanche that broke within the new snow on the east face of Mount Blackmore. Photo: G. Antonioli.

Small skier triggered slide in the new snow on Mount Blackmore. Photo: G. Antonioli

Two avalanche on the south face of Cone Mountain, southern Madison Range. Observed on March 4th, 2019, likely occurred several days earlier. Photo: B. Elkin.

An avalanche on an east/northeast aspect of White Peak in Upper Tepee Basin, southern Madison Range. Observed on March 4th, 2019, likely occurred several days earlier. Photo: B. Elkin.

Large avalanche on a south facing slope above snow lake. Observed March 4th, likely ran during the storm the previous week. Photo: B. Zavora.

Deep slab avalanche that ran full path off of East Fox Mountain. 8-10' crown. Observed March 4th, likely ran during the storm the previous week. Photo: B. Zavora

From e-mail: "Observed a small slide that appeared to be skier-triggered (tracks entering & exiting) on a wind-loaded, north-facing (21 degrees north) slope, slope angle of approximately 36 degrees." Photo: A. Yount

This crown was observed on 3/3 and likely slid a couple days earlier after steady snowfall and wind. This path had a large avalanche previously this winter in mid-January. Photo: G. Antonioli

This crown was observed on 3/3 and likely slid a couple days earlier after steady snowfall and wind. This is the second time this slopes slid this winter.It had a large avalanche in mid-January. Photo: G. Antonioli

Steady snowfall last week created soft slabs like this natural crown. Photo: G. Antonioli

Cornices are large, and intense spring sun will make them weak and easier to trigger or break naturally. Be cautious along ridgelines and on slopes below these monsters as temperatures warm. Photo: G. Antonioli

Loose snow slides are possible on sunny slopes during intense spring sunshine. Recent snow is unconsolidated and it may be easy to trigger loose slides on some steep slopes. Photo: G. Antonioli

"The YC Ski Patrol conducted avalanche mitigation work above another one of our roads today. The area is outside of our ski area boundary and receives no skier traffic. A 4lb explosives charge was detonated from an aerial tram and triggered a R2/D2 avalanche that ran to the ground. The crown was 2', the path width was around 100', and it ran 350 vertical feet (crossing the road) to the bottom of the runout zone. The elevation was 7280' on a NNW aspect and max slope angle of 34 degrees. Other sections of this slope were tested with explosive charges, yielding only black holes." Photos and observation courtesy YC Ski Patrol.

"The YC Ski Patrol conducted avalanche mitigation work above another one of our roads today. The area is outside of our ski area boundary and receives no skier traffic. A 4lb explosives charge was detonated from an aerial tram and triggered a R2/D2 avalanche that ran to the ground. The crown was 2', the path width was around 100', and it ran 350 vertical feet (crossing the road) to the bottom of the runout zone. The elevation was 7280' on a NNW aspect and max slope angle of 34 degrees. Other sections of this slope were tested with explosive charges, yielding only black holes." Photos and observation courtesy YC Ski Patrol.

Multiple natural avalanches released on Fan Mountain in the past few days. Some of the smaller slides were confined to the new snow, while two larger slides broke on deep persistent weak layers an ran a long distance. Photo: M. Delguidice

Riders saw this avalanche (center of photo) on Saturday (3/2) just east of Sage Peak. Photo: P. Honsinger

Snowmobile-triggered avalanche near Cedar Mountain. Photo: YCSP

A snowmobiler sent in this photo of multiple natural avalanches near Woodward Mtn. He also reported large avalanches near Pika Point and Skyline Ridge that failed at the ground. Photo: P. Honsinger

A snowmobiler triggered this slide on the afternoon of 3/2/19 behind Sage Peak in the southern Madison Range. Photo: J. Hillier

A snowmobiler triggered this slide on the afternoon of 3/2/19 behind Sage Peak in the southern Madison Range. Photo: J. Hillier