There has not been a whole lot of change in the avalanche conditions lately and we have not heard of any avalanche activity the past few days. The pack is becoming weaker and weaker every day under clear and cold weather. Surface conditions consist of surface hoar in most areas and near surface facets below. Very little wind for a while now has kept the recycled powder quite nice. The snow is still mostly supportable to skis and/or a board but once you step off, your boot goes straight to the tundra. Rocks are the biggest hazard where most folks are recreating right now.
That said, the steeper slopes at the upper elevations continue to harbor slabs that have the potential to avalanche to the ground and take someone on a nasty ride. Slopes that are most likely to be triggered are those at the higher elevations in the 40 degree range and unsupported from below. Probing with a pole to feel for stiff snow over hollow feeling snow and watching for collapsing and cracking are good ways to find suspect areas.
This problem is very slowly getting better and for the snow geek here is a pit profile of one such suspect slope HERE. There are a few reasons the pack is taking longer to rot away at the upper elevations. One is the snow is deeper and stiffer than the lower elevations so it simply takes longer. Another is the temperature has remained warmer (upper teens to mid 20’s) compared with the single digit temperatures below treeline, this is creating much lower snowpack temperature gradients at the higher elevations than the large gradients seen at the lower elevations. But the fact remains, the whole pack is well on its way to becoming one big weak layer.
Clear skies and light easterly winds prevail once again today. A strong temperature gradient exists this morning with mid 20’s F above treeline and minus single digits below treeline, -10F in Portage (burr). Winds are clam currently and forecast to be around 5mph today from the east. Tomorrow, Wednesday, looks to me more of the same. In fact, it looks that way into the beginning of December:
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).
Kevin will issue the next advisory Thursday morning, November 29th.
|04/19/21||Turnagain||Avalanche: Triangle, Seattle creek||Will Morrison|
|04/18/21||Turnagain||Avalanche: Turnagain Pass Road Obs||Andy Moderow|
|04/18/21||Turnagain||Observation: Seattle Ridge, approximately 300 yards south of the up track||Brent Byrne|
|04/17/21||Turnagain||Avalanche: Road obs||Johnston-Bloom / Moderow Forecaster|
|04/16/21||Turnagain||Avalanche: Seattle Ridge||Wendy Wagner Forecaster|
|04/16/21||Turnagain||Avalanche: Turnagain Pass, non-motorized side seen from Seattle Ridge||CNFAIC Staff Forecaster|
|04/16/21||Turnagain||Observation: Sunburst||Lance breeding|
|04/15/21||Turnagain||Observation: Tincan||Schauer/ Rothman Forecaster|
|04/13/21||Turnagain||Observation: Turnagain Pass Road Obs||A Schauer Forecaster|
|04/12/21||Turnagain||Observation: Tincan||Johnston-Bloom / Latosuo 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: email@example.com
|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.