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Turnagain Pass Avalanche Forecast RSS

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ARCHIVED FORECAST - All forecasts expire after 24 hours from the posting date/time.
Issued
Wed, November 13th, 2013 - 7:00AM
Expires
Thu, November 14th, 2013 - 7:00AM
Forecaster
Wendy Wagner
The Bottom Line

Saturday, November 10th’s storm put down quite a showing in Alaska. Unfortunately, Turnagain Pass didn’t fair as well as other areas but we did pick up a good foot of powder.

A few folks have been getting out at Turnagain Pass the last couple days. The photo below is of Tincan taken Tuesday, Nov. 12th. You can see a slab avalanche on the right that looks to have been skier/boarder triggered. After talking with some folks, it sounds like this occurred on the 11th just after the storm exited. A few more details can  be found HERE  and a  VIDEO HERE.


There was not a whole lot of natural activity that went on with the weekend’s storm – for Turnagain standards anyhow. Yet, a hand full of fracture lines could be seen if you looked hard enough. The largest concentration I could find was on the south face of Lipps ridge – photo below. The more impressive crowns are in the back of the picture in the steeper/rocky terrain.

Snowpack assessment:

Before the Nov. 10 storm we had bare ground up to 2200-2500ft and older snow above that. The old snow had become loose and faceted with several days of clear and dry weather. With a foot+ of new snow falling on this old layer in the course of 24 hours, it’s not a surprise that avalanche activity occurred. It is likely that the weakness for these avalanche events was the older faceted snow. Evidence for this is the season history just mentioned, crown heights of 12-18 inches and no avalanche activity seen below 2,500ft where no snow existed prior.

With the cold and clear weather moving in post storm this has allowed the storm snow to settle out and facets to gain strength.  

Wind is now the key player in the avalanche game. With plenty of loose snow available for transport, wind slab avalanches should be on your radar. Winds were blowing enough from the north and west to move snow around at the highest peaks yesterday. Keep an eye out for any hollow feeling or wind stiffened snow if venturing to the upper elevations.

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Wed, November 13th, 2013
Alpine
Above 2,500'
No Rating (0)
Avalanche risk
Treeline
1,000'-2,500'
No Rating (0)
Avalanche risk
Below Treeline
Below 1,000'
No Rating (0)
Avalanche risk
Alpine
Above 2,500'
Avalanche risk
No Rating (0)
Treeline
1,000'-2,500'
Avalanche risk
No Rating (0)
Below Treeline
Below 1,000'
Avalanche risk
No Rating (0)
Danger Scale:
No Rating (0)
Low (1)
Moderate (2)
Considerable (3)
High (4)
Extreme (5)
Weather
Wed, November 13th, 2013

Our next chance of precipitation for Turnagain Pass looks to be this weekend – stay tuned. The system that is moving in today and into Thursday should skirt us to the north again.

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Riding Areas
Updated Mon, October 26th, 2020

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: mailroom_r10_chugach@fs.fed.us

Area Status Weather & Riding Conditions
Glacier District
Johnson Pass
Closed
Placer River
Closed
Skookum Drainage
Closed
Turnagain Pass
Closed
Twentymile
Closed
Seward District
Carter Lake
Closed
Lost Lake Trail
Closed
Primrose Trail
Closed
Resurrection Pass Trail
Closed
Snug Harbor
Closed
South Fork Snow River Corridor
Closed
Summit Lake
Closed

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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.