After a long stretch of clear skies, sunscreen and quiet avalanche conditions, we are getting back into a somewhat stormy weather pattern. The Easterly winds already picked up along the ridgelines yesterday and there is snow above 1500ft on tap for the next several days.
As we head back into winter at the upper elevations we can put loose snow sluffs and wind slabs back on our radar. Snow is expected to fall in earnest this afternoon and although amounts are uncertain, as is often the case, we could see up to 4” by sunset (~9:45pm). Favored areas such as Portage Valley could see 5-7”. This will be falling on old stout surface crusts.
Wind slab avalanches should be expected on any slope with recent wind deposited snow. Considering there is very little pre-existing snow available to transport, it will depend on new snow amounts as to wind slab formation and size. With modest amounts expected the avalanche activity should be fairly low in volume, predictable and easy to suss out.
Yesterday was another bluebird day on the Pass. Sunny skies gave way to a few cumulus clouds by the afternoon and temperatures climbed to the mid 30’s F on the peaks. The wind kicked up to the 20mph range from the East late in the day and has continued overnight associated with a small system moving through from the Gulf.
Today this smaller system continues to move North ahead of a large Aleutian Low tracking East with an associated front which will impact our region by the afternoon. There is a chance for .4 € of rain below 1500ft with 2-4 € of snow above from this afternoon through midnight. Winds will continue from the East in the 25-35mph range and temperatures look to stay in the mid 20’s F above treeline and 35-40F at 1000ft.
The front mentioned above is forecast to stall out over us for the weekend with 40-50mph Easterly winds and a decent shot of rain/snow can be expected (the rain/snow line should be around 1200ft). As for the CORN HARVEST tomorrow from 3-7pm €“ let’s hope we get a little break in the cloud cover and precipitation!
|01/29/23||Turnagain||Observation: Tincan Backdoor||AAS-Level 1 1/27-1/30|
|01/28/23||Turnagain||Observation: Sunburst||Brooke Edwards|
|01/28/23||Turnagain||Avalanche: Seattle Ridge||W Wagner|
|01/28/23||Turnagain||Observation: Tincan Common||Tony Naciuk|
|01/27/23||Turnagain||Observation: Sunburst||John Sykes|
|01/27/23||Turnagain||Avalanche: Lynx Creek||Megan Guinn / W Wagner|
|01/25/23||Turnagain||Observation: Cornbiscuit||John Sykes Forecaster|
|01/22/23||Turnagain||Avalanche: Tincan||Schauer/ Guinn|
|01/21/23||Turnagain||Avalanche: Seattle Ridge||Elias Holt|
|01/21/23||Turnagain||Avalanche: Lynx drainage – avalanche||CNFAIC Staff|
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.