Avalanche: Portage / Placer

Location: Portage Valley - Road obs

Date:

March 19, 2019 3:00pm

Observer:

H. Thamm Professional

Route & General Observations

Drove through Portage around 3pm. Lots of very large avalanches on all aspects and elevations

Avalanche Details

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Trigger	Natural	Remote Trigger	0
Avalanche Type	Unknown	Aspect	Unknown
Elevation	unknown	Slope Angle	unknown
Crown Depth	unknown	Width	unknown
Vertical Run	unknown

Red Flags

Red flags are simple visual clues that are a sign of potential avalanche danger. Please record any sign of red flags below.

Obvious signs of instability

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

Observer Comments

Numerous recent very large avalanches on all aspects and elevations

Weather & Snow Characteristics

Please provide details to help us determine the weather and snowpack during the time this observation took place.

Weather

Sunny
Upper 30s F
No precip
Light winds

Snow surface

very little snow along the road at sea level. Snow is melting fast!

Photos & Video

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Although not visible in this photo Explorer Glacier had a very large pile of debris to valley bottom (~100 road elevation)

Five Sister's slide path apparently released this morning naturally - note the 10+' crown

Close up of the Five Sister's 10+' crown

Recent avalanche activity near Byron Glacier

Byron Glacier with one of many crowns in far back of the valley

Close up of the large cornices that are looming over Byron Glacier Trail and beyond the trails.

Large wet slabs on Maynard Mt mid elevation

Large wet slabs on Baird Peak

Portage Lake is all broken up

Location

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