Small pockets of wind slab were found occasionally yesterday from the 4-5 inches of new snow that fell on Thursday. Loose snow sluff in the non-wind affected snow was also common, but less of an issue if you use good sluff management technique. Wind slab is most likely found at higher elevations, below ridgetops, and in steep terrain. Both the slabs and the sluffs are shallow and low volume, so as avalanches by themselves they are not a huge concern. The bigger concern is related to the consequences of the terrain such as cliffs or no-fall zones.
Cornices remain a low probability but high consequence avalanche problem. These large overhanging features have the potential to produce the largest avalanches today. Choose your lines to avoid cornice exposure, and always give them a wide berth when traveling on ridge crests.
It’s mid March already. The sun has some significant power that has already built a series of crusts on south facing slopes. As the temperatures rise this afternoon, wet loose snow may start to move at lower elevations on south exposures. Cold temperatures this morning may delay the wet cycle, and any cloud cover will also prevent the surface snow from warming.
Yesterday was one of those perfect Alaska days. Today looks like more of the same. Temperatures are cold this morning, reaching negative temperatures in a few places. Most areas are comfortably in the teens. As soon as the sun hits we can expect rising temperatures for the rest of the day. Partly cloudy skies are forecasted. Wind should be almost non-existent.
We can expect a similar weather pattern for the rest of the week with no major storms on the horizon.
Wendy will issue the next advisory on Sunday, March 17th.
|05/28/22||Turnagain||Avalanche: Turnagain Pass – late May wet slab cycle||CNFAIC Staff|
|05/21/22||Turnagain||Avalanche: Magnum, Lipps and Tincan||CNFAIC Staff|
|05/17/22||Turnagain||Avalanche: Sunburst||CNFAIC Staff|
|05/17/22||Turnagain||Observation: Tincan Ridge||Joe Kurtak|
|05/11/22||Turnagain||Avalanche: Cornbiscuit and Magnum west faces||CNFAIC Staff Forecaster|
|05/07/22||Turnagain||Observation: Granddaddy||Kit Barton|
|04/29/22||Turnagain||Observation: Sunburst wx station||AS/ MM/ AM/ NH|
|04/28/22||Turnagain||Observation: More Turnagain Pass/Summit Lake wet slab activity||Alex Marienthal|
|04/27/22||Turnagain||Observation: Magnum||Sykes / Buttrick Forecaster|
|04/27/22||Turnagain||Observation: Girdwood/Summit/Turnagain Road obs||A S|
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.