With a good chance for new snow Monday, we will likely be talking about a whole host of different issues and dangerous avalanche conditions but, until then, we are still dealing with the old and tired “dragon in the dungeon”. This is our weak snow underneath strong snow problem that is scattered about the mountains. The dragon (weak faceted snow) is widespread but the strong snow (old wind slabs) are hiding in pockets. Though these slabs are slowly deteriorating to the point of non-reactivity and becoming harder to find, they cannot be written off.
Areas to watch for are steep slopes sporting stiff supportable snow that has a hollow feel underneath. Many areas, including steeper slopes and starting zones, are missing this stiff and cohesive slab because they have either already avalanched, been wind scoured or, if you are lucky, harbor loose faceted snow with decent riding conditions. That said, the snow surface is quite variable.
Enjoy the mostly clear skies today as we have snow in the forecast! But first today’s conditions, the frigid temperatures have bumped up overnight €“ at least at the mid and upper elevations. Treeline and above are in the mid-teens this morning, where they should remain, but the inversion will stick around with parking lots in the minus single digits. Winds are currently light from the east and will pick up to the 20mph range by this evening with the approach of, yes, a storm.
Okay second, the storm, snow is finally on its way and it has the potential to add up by mid-week. A low pressure system developing south of Kodiak is intensifying and will start moving over our region tonight and through Tuesday. Snowfall numbers are looking to be in the 10-16 € range by Monday night with another system right on its heels bringing similar snow amounts. This first system is cold enough for snow at all elevations. Stay tuned for tomorrow’s forecast and a better look as the systems get closer.
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).
John will issue the next advisory Monday morning, December 24th.
|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.