Observation: Seward

Location: Snug Harbor to Martin Creek

Route & General Observations

Rode from Snug Harbor, through Boulder Creek and into the Martin Creek drainage.

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

Rapid warming mid and upper elevations.
Small wet loose avalanches on steep south facing slopes from the very warm and sunny conditions today.

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

Sunny, warm with light and variable winds. Temps seemed to reach near 30F at 2,500' and staying in the 20'sF at lower elevations.

Snow surface

Heavily wind affected snow surface mid and upper elevations (scouring to rocks/old snow, sastrugi, wind crust, old hard wind drifts)
Lower elevations soft settled snow 4-8" (near surface faceted snow)

*Sun crust on southerly aspects


Old wind slab avalanches noted from wind event on 2/21. Some of these older slabs were quite large, sizes ranges from D1-2.5.

One pit: 2,300', N, 20 degree
ECTN 13 down 15cm (6") on old precip particles
ECTN 18 down 25cm (10") on small facets under wind crust
ECTX on MLK buried surface hoar that sat 65cm (26")

These pit results show good stability in the snowpack.

Photos & Video
Please upload photos below. Maximum of 5 megabytes per image. Click here for help on resizing images. If you are having trouble uploading please email images separately to staff.