On Saturday 2/22/20 riders saw natural slides on east and west aspects 10 miles up Storm Castle creek. Photo: @bryant_thorne
Northern Gallatin
On Saturday 2/22/20 riders saw natural slides on east and west aspects 10 miles up Storm Castle creek. photo: @bryant_thorne
Many large, destructive slides on Emigrant Peak
[date of activity roughly estimated] From email on 2/22/2020: "The mountains around Emigrant Peak have certainly reached their tipping point. Skinning up in the morning we witnessed the debris of more than a dozen avalanches on all aspects, more than I have ever seen in a single day. Many of these avalanches were extremely large and powerful deep slabs that broke towards the ground, likely to have released within the past week. Slides were running to the end of their runout zones and carried with them many trees that were torn to shreds."
An image of the 4 crown and location of debris.
This crown was the one to the furthest looker's left of the bowl. Photo: GNFAC
These trees were bent over from repeated avalanches in this bowl. Photo: GNFAC
The deepest part of the crown was estimated to be 10-12' deep. It was a steep and heavily wind-loaded with a rocky starting zone. Photo: GNFAC
Forecast link: GNFAC Avalanche Forecast for Sun Feb 23, 2020
The avalanche was powerful and put debris far down the slope along the flat bench. Photo: GNFAC
These 4 avalanches seem to have run at the same time (estimated 15 or 16 February) although the crown does not connect them, but the weak layer of depth hoar surely does. Slides 1 and 2 merged into the huge debris field. Photo: GNFAC
The end of the runout is marked with the arrow. Photo: GNFAC
Forecast link: GNFAC Avalanche Forecast for Sun Feb 23, 2020