Widespread small, natural wet loose and loose snow slides originating in rocky, alpine terrain. Few, if any, of the slides were big enough to bury people-but, many were big enough to knock you over. Wet loose avalanche activity was focused on E/SE aspects, some dry loose were seen on NE aspects (cornice triggered), and there were a couple of small loose snow slides on NE and NW slopes at middle elevations. Due to my timing and the terrain I could see from the highway, I didn't get to see many W-facing slopes affected by late afternoon direct sunshine. With warmer temps forecast for Wednesday, expect another round of similar natural activity.
# | Date | Location | Size | Type | Bed Sfc | Depth | Trigger | Comments | Photo |
---|---|---|---|---|---|---|---|---|---|
10 |
W Fork Prairie Ck SE alpine |
D1.5 | WL | N-Natural | 5 of the slides were D1.5 (a couple were the largest I saw today), and 5 were smaller D1-1.5. The larger slides were on E/SE aspects. | ||||
2 |
Saviers Peak SE alpine |
D1.5 | WL | N-Natural | D1-1.5 | None | |||
1 |
Head of Big Wood River near Titus Lake trailhead NW 8800' |
D1 | WL | N-Natural | None | ||||
1 |
Salmon Headwaters (ridge between Frenchman and Salmon) E 8000 |
D1 | WL | N-Natural | None | ||||
1 |
Sawmill Canyon (Smiley Creek) E alpine |
D1.5 | WL | N-Natural | None | ||||
5 |
Cabin Ck Lakes SE alpine |
D1.5 | WL | N-Natural | E, SE, and S aspects | None | |||
1 |
McDonald Peak E alpine |
D1 | WL | N-Natural | None | ||||
6 |
Parks Peak SE alpine |
D1.5 | WL | N-Natural | None | ||||
3 |
Imogene E alpine |
D1.5 | WL | N-Natural | E and SE aspects | None | |||
6 |
Finger of Fate to Decker Peak E alpine |
D1.5 | WL | N-Natural | E and SE aspects | None | |||
8 |
Decker Peak area NE alpine |
D1.5 | L | N-Natural | Several D1-1.5 dry sluffs in shady terrain were triggered by small natural cornice fall (cornices in the sun) | None | |||
25 |
Grand Mogul-Heyburn-Thompson-Williams Peak area SE alpine |
D1.5 | WL | N-Natural | Many small, D1-1.5 slides on E and SE aspects | None | |||
1 |
|
None |
First day of full sun and light winds following the small storms last weekend led to predictable results. The small, natural cornice failures leading to dry sluffs were interesting - there must be some very soft cornice growth to be that sensitive to the sun today.
No observations - roadside glassing with binoculars.
N/A