| Recent Avalanches? | Yes |
| Collapsing (Whumphing)? | Yes |
| Cracking (Shooting cracks)? | No |
Observation: Summit
Location: Tenderfoot to 3200'
Ascended W ridge to 3200′
Obvious signs of instability
Observer Comments
Recent Wet loose avalanches on South aspect.
At 1:30pm observed rollerballs moving on South aspect.
Collapsing was reported by another group on the ridge, but we didn't experience any collapsing
Large cornice fall triggered loose snow
Weather
Mostly Sunny
Temps:40-47F
Winds: 10 g20, becoming Light by afternoon
No Precip
Snow surface
WET!
1300 ~10" wet snow on dry snow
1600 ~7" wet snow on dry snow
2000 ~4" wet snow on dry snow
2300 ~1" dry snow on 1-2" m/f breakable crust
3000' - 1" breakable m/f crust on leeward side of Ridge, 8-12" heavy wind drifted snow
Snowpack
Pit at 3100' - Dug a pit on a wind loaded (SW) side of ridge. Top 35 cm was 'upside down' with denser snow sitting on weaker snow below. Within top 35cm we found moderate strength with no propagation potential. Layer changes were composed of precip particles and rounds and no persistent grain types were found. See photo diagram for more details.
Cornice fall on a NW aspect between Tenderfoot and Hale-Bop
Rencent wet loose activity on SW aspect of Butch
Recent wet loose debris on the SW aspect of Tenderfoot. In the foreground are roller balls moving while the photo was being taken
View from 3000' looking down at Summit Lake.
1-2" breakable crust was found between 2300' and 3200' made for some really poor skiing.
Notice the shiny looking rain crust on leeward aspects
Pit at 3100' on Tenderfoot
Wind texture on breakable crust
Lots of big holes around drainages and other buried objects are something to pay attention to
Trees were dripping with water in the warm sun today
glide cracks along SW aspect of Roaring Ridge