Observation: Summit

Location: Birch trees across from tender foot

Date:

March 9, 2018 3:17pm

Observer:

APU snow science Jacob Kayes

Route & General Observations

Toured through trees to 1770, slopes seemed to be protected from wind.

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)?	Yes
Cracking (Shooting cracks)?	Yes

Observer Comments

Road cuts by Bertha creek had all slid. Storm slab and loose snow. Lots of collapses. It whumped every 100 feet or so. It was felt during the entire length of the tour.

Weather & Snow Characteristics

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

Weather

Light winds from south, 2 degrees Celsius. S 1 decreasing to no snow by afternoon

Snow surface

30cm new snow

Snowpack

Zero at ground
Ski pen 30, boot pen 125cm. Hs 115cm. T surface -.1 T20 -1.5
Layers concern were BSH @ 55cm. Facets @ 65cm depth hoar at ground
CT14SC@65cm
CT16RP@55cm
CT26SC@20cm
ECTX
PST 25/100 end @ 65cms on 2mm facets

Photos & Video

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Location

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