Hollywood Bowl

Submission Info
Monday, April 3, 2017 - 10:30am
Red Flags: 
Recent avalanche activity
37° 35' 55.032" N, 119° 1' 46.02" W
Snowpit Observations
More detailed information about the snowpack: 

Route- Skinned across Twin Lakes and ascended the trees to the W up to Horseshoe Lake. Skinned up to McLeod Lake and up the ridge to the top of Hollywood Bowl just under the Mammoth Crest. Skied the Bowl and approach trail down to Horseshoe and out the Tamarack cross country trails.

0900 at 8800' on an E aspect heading up the trees towards the Falls Tract cabins- Poor re-freeze overnight and possible some rain yesterday afternoon. Snow already very moist and barely supportable, especially in the trees. Moderate SW winds in open areas.

0915 at 8930' on an E aspect near the cabins- Snow surface turned to graupel and the melt-freeze crust was more supportable. This could have been the rain/snow elevation line from yesterday afternoon, but it also got below freezing at Mammoth Pass last night, so it could have rained higher and just frozen. Either way, the rain turned to traces of graupel from here on up (warm and turbulent storm yesterday evening).

0945 at 9320' at McLeod Lake- Wind = light from the W and moderate gusts. Graupel was about 1cm thick and moist, on top of a barely supportable melt-freeze crust. Few clouds, mostly to the SW of Mammoth Pass.

1000 at about 9400' on the ridge E of Hollywood Bowl, looking E- The roots of the large cornices that always develops on the E side of the ridge are melting and the cornices are starting to peel off (see photo). D1 loose wet avalanches from yesterday visible under the granite cliffs of the Crest (see photo).

1030 at 10200' on a N aspect at the top of Hollywood Bowl, immediately below the Mammoth Crest- Wind = calm with light gusts from the S and W. Graupel was 2-3cm thick and looked like it went all the way to the top of the Crest without turning to cold winter snow. Ski pen = 30cm on E aspects traversing under the Crest. Snow there was wet, but no roller balls from my skis.

Snowpack photos: 
Cornices weakening near McLeod Lake
Recent loose wet avalanches below the Crest
Weather Observations
Blowing Snow: 
Cloud Cover: 
25% of the sky covered by clouds
Air temperature: 
Above Freezing
Wind Speed: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: 
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