| AVALANCHE OBSERVATION Frog Pass Drainage: |
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| Submission Info Mike Wright Sunday, January 28, 2018 - 12:15pm |
Red Flags:
Recent loading by new snow, wind, or rain
Rapid warming
Avalanche Type:
Slab
Slope:
45degrees
Trigger type:
Skier
Crown Height:
1 ft
Aspect:
Southeast
Weak Layer:
Storm Snow
Avalanche Width:
30ft.
Terrain:
Near Treeline
Elevation:
11 420ft.
Bed Surface:
Old Snow
Avalanche Length:
500ft.
Avalanche Photos:
Snowpit or crown profile photo or graph:
Air temperature:
Above Freezing
Wind Speed:
Light
Air temperature trend:
Warming
Wind Direction:
Northeast
Mike Bizinski
38° 3' 0.6408" N, 119° 17' 21.4548" W
See map: Google Maps
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Careful out there! this took myself, my partner and my pup by surprise. lucky we were all in good positions and no one got hurt. Crown line was 8" to 18" inches. New wind packed snow slid on old hardened snow surface.. it was warm so there must have been some run off on the old hardened surface for it to cut loose.. The Surface had a soft crust and we were waiting for the sun to soften it up a little more before we dropped in. The snow underneath the crust was soft and sugary.. Once the slab broke apart and was moving it was a river of wet goo