Turnagain Pass Avalanche Forecast
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Image of Tincan at 3pm Sunday, Nov 5th after 3″ dusting of snow. Turnagain Pass is still very thin – snowpack from 0″ to possibly 1′ at the high elevations, even 2′ where the winds have blown in snow.
Photo from Peter Wadsworth of Sunburst on Monday Nov 6th.
In anticipation of the next storm, we are expecting the cold weather to break down the existing snow and turn it to facets (bad news for the base of a snowpack). Hence, we will be mapping out where and how thick the older snow is to assess future avalanche potential. Hint: photos of slopes, valleys, ridges, etc are a great way to help us with this! What about the wind? There is cold air pushing down from the interior which will create strong winds in Southcentral. Turnagain Pass may be spared but other areas may not. Winds can increase avalanche hazard by rapidly loading slopes – and on that note, we’d like to remind folks about some early season avalanche tips.
Early season hazards:
Rocks, alders, crevasses and avalanches.
Little snow. Keep it simple. What to clue into:
1) Rapid changes in weather? This includes recent or current snowfall, wind, rain on snow and warm temperatures after a storm. One layer of snow can be a slab!
2) Recent avalanches in the past 1 or 2 days?
3) Cracking, collapsing, whumphing? (see photo below)
4) What are the consequences if the slope does slide? Will you go off a cliff? Into a crevasse? Over the rocks? Are there other terrain traps?
Natural avalanches during late October across from the Crow Pass trail in upper Crow Creek Valley (photo: Mike Records)
**Remember the Crow Pass trail crosses several avalanche paths and even a small early season storm can produce slides that run over the trail.
A little over a 2 foot snowpack at 5,000′ at the head of the Milk Glacier. Location of a very large whumph. The top 10″ layer of harder snow is suspected to have collapsed into the weaker faceted snow below (classic set up for slab avalanches). (Mike Records photo)
Final thought for this update: *THINK COLD POWDER!!!!
Temp Avg (F) | Snow (in) | Water (in) | Snow Depth (in) | |
Center Ridge (1880′) | ||||
Summit Lake (1400′) | ||||
Alyeska Mid (1700′) |
Temp Avg (F) | Wind Dir | Wind Avg (mph) | Wind Gust (mph) | |
Sunburst (3812′) | ||||
Seattle Ridge (2400′) |
Date | Region | Location | Observer |
---|---|---|---|
04/09/21 | Turnagain | Observation: Girdwood to Turnagain Road Observations | W Wagner Forecaster |
04/05/21 | Turnagain | Avalanche: Resort bowl Seattle creek head wall | Clint Kyffin |
04/04/21 | Turnagain | Observation: Center Ridge | Andy Moderow |
04/03/21 | Turnagain | Observation: Repeat Offender – Seattle Ridge | Troy Tempel |
04/02/21 | Turnagain | Observation: Seattle Ridge | Wagner / Schauer Forecaster |
04/01/21 | Turnagain | Observation: Pete’s | Schauer/ Cullen Forecaster |
03/31/21 | Turnagain | Observation: Tincan | Schauer/ Rothman Forecaster |
03/30/21 | Turnagain | Observation: Eddies | Johnston-Bloom / Kinney Forecaster |
03/30/21 | Turnagain | Observation: Sunburst North | lance breeding |
03/28/21 | Turnagain | Observation: Sunburst | Aleph Johnston-Bloom Forecaster |
Status of riding areas across the Chugach NF is managed by the Glacier and Seward Ranger Districts, not avalanche center staff. Riding area information is posted as a public service to our users and updated based on snow depth and snow density to prevent resource damage at trailhead locations. Riding area questions contact: mailroom_r10_chugach@fs.fed.us
Area | Status | Weather & Riding Conditions |
---|---|---|
Glacier District |
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This is a general backcountry avalanche advisory issued for Turnagain Arm with Turnagain Pass as the core advisory area. This advisory does not apply to highways, railroads or operating ski areas.