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Location (general area)
Crystal Lake basin Angeles Forest
Road conditions to area
Plowed but icy at last two miles
clear (no clouds)
Moderate (17-25mph Small trees sway/ flags stretched)
Wind direction in degrees
Aspect in degrees
Boot/ Ski penetration
Activity, recent avalanches
2 avalanches on west aspects near 7,800' & 1 on a South aspect
Whumphing noises, shooting cracks. collapsing
Obvious avalanche path
09:40!snow falling off trees. Rapid warming
10:22 5,783’ 2.5’HS
Noon avi debris W aspect some rocks. Probably yesterday eve 6,580’ looks to be about 800’ started off rocks above due to solar warming at the end of the day when the clouds cleared most likely.
Observed a similar avalanche on another west aspect to the southeast of our location
Another avalanche was observed in fairly due south aspect at a higher elevation some distance away. Probably from early today again originating at a rock band and most likely due to the solar influence.
13:30 WNW wind slab collapse and shooting cracks
Tested another wind slab on a switch back and got some easy fracture.
Windslabs were isolated but many on mostly on west to northwest aspects. Extensive signs of wind effects along ridges and lots of cross loading in gullies.
Northwest winds picked up around 2:00 pm with significant wind transport. Upper ridges and peaks had large snow banners at times. Wind activity continued until after dark.
Late afternoon on the way observed many small wet slabs off of rock areas and from trees dropping snow. Korea of roller balls. Mostly due south and southeast aspects.
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