Avalanche: Turnagain

Location: Turnagain Pass Road Obs

Date:

February 21, 2019 3:30pm

Observer:

H. Thamm Professional

Route & General Observations

Drove through Turnagain in the AM(10am) and afternoon (3pm.) Blowing snow was seen along many ridge tops, but not nearly as much as in Summit Lake. Seattle Ridge was the most prominent and several new wind slabs were observed. Several older wind slabs from a few days ago were also very obvious.

Avalanche Details

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Trigger	Natural	Remote Trigger	0
Avalanche Type	Hard Slab	Aspect	Southeast
Elevation	2700ft	Slope Angle	unknown
Crown Depth	unknown	Width	unknown
Vertical Run	unknown

Red Flags

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Obvious signs of instability

Recent Avalanches?	Yes
Collapsing (Whumphing)?	No
Cracking (Shooting cracks)?	No

Observer Comments

Recent wind slabs D1-D2's

Weather & Snow Characteristics

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Weather

Moderate to Strong ridge top winds
Mostly sunny
Temps mid 20F's

Photos & Video

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Drifting snow along Seattle Ridge near Bertha Creek, far Southern end of Turnagain

Several new wind slabs on Seattle Ridge, SE aspect, near Rookie Hill and the motorized lot

This avalanche path ran on Tuesday during our last NW wind event

Winds transporting snow onto the SE aspect of Seattle Ridge

Location

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