Well developed facets, buried surface hoar, even depth hoar is lingering in the snowpack across our region. Only major precipitation or melting is going to make this problem disappear… In other words, we will be talking about this problem for some time to come. Signs of this problem are still easily found, including – collapsing, shooting cracks, and propagation in snowpit tests.
In practice, the best way to deal with persistent weak layers is to tone down your terrain choices. As time passes since the last snowfall, the likelihood of triggering avalanches diminishes. Steeper areas may never become fully trustworthy without a big change in the weather pattern. For now, choosing moderate terrain is the only sure way to stay away from the avalanche problem.
Watch for wind slab in areas above treeline. Recently deposited, stiffer snow is going to be the most likely to trigger and step down to the older weak layers. Pay attention to the direction of recent wind loading (likely from the east, loading the west aspects.)
No major changes are expected in the near future. Today, decreasing temperatures and slightly increased wind is predicted. Clear and cold weather will continue over the next several days. A strong pressure gradient will produce gap winds across some of the major passes. The next hope for snow is listed in the extended forecast sometime next week.
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).
Our newest forecaster, John Fitzgerald will issue the next advisory Thursday morning, December 20th. Welcome Fitz!
|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: firstname.lastname@example.org
|Area||Status||Weather & Riding Conditions|
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.