Observation type
Pro - Snowpack/ Avalanche Observer Allen Giernet Keep me anonymous if published no Location (general area) Angeles Crest Latitude Longitude Date (yyyymmdd) 20240401 Time 10am - 2pm Road conditions to area clear Temperature Morn 31.1F to Aft. 42.8F Sky Overcast (sky covered) Wind speed Light (1-16mph Flags/twigs in motion) Wind direction NE Wind direction in degrees Slope aspect North Aspect in degrees Slope angle 25 - 35° Elevation 6970' - 7790' Snow depth 35cm - 120cm Boot/ Ski penetration Boot 31cm Precipitation None Activity, recent avalanches yes Brief description Small Loose Wet releases D.5 - D1 increasing activity through the day noted on northern aspects with increasing temperatures and sun exposure Whumphing noises, shooting cracks. collapsing no Rapid warming yes Obvious avalanche path no Terrain trap yes Comment 10:09am Sky - Ovc Wind - L - NE Temp - NO Several small loose wet avalanches on N to NW aspects approximately 7,000' + near avalanche canyon and Winston springs and along road cuts. Appeared to be triggered by Snow shedding from trees or near rocks. 10:40 Sky-Ovc Wind - M-ENE Precip.-0 Temp - .5C Snow transport active. Seems like possible light rain or fog affected snow. Breakable crust & snow still on trees but affected by moisture 1:10p kicked wind lip broke loose and immediately self arrested 1:54 6970’ Temp - 6C As clouds broke in the afternoon snow surface softened and became poor riding conditions. Upon leaving I noted numerous loose wet avalanches up to near the ridgelines on Northerly aspects in Both Avalanche Canyon and Winston Springs. Day began with crust on surface and I suspect low clouds noted on the drive in may have contributed moisture to snow surface. Potential greenhouse effect from clouds and above freezing temperatures the day before. Higher elevations may not see this condition. As the softening surface refreezes overnight crust will be more solid and could contribute to fast firm conditions in the morning. Publish this observation Yes I would like this observation Published |
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