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ARCHIVED FORECAST - All forecasts expire after 24 hours from the posting date/time.
Issued
Fri, November 2nd, 2012 - 7:00AM
Expires
Sat, November 3rd, 2012 - 7:00AM
Forecaster
Wendy Wagner
Avalanche risk The Bottom Line

Good morning. This is Wendy Wagner with the Chugach National Forest Avalanche Information Center. Due to early season conditions, for both the snowpack and our operations, we will be issuing intermittent snow and avalanche updates between today and November 17th, as conditions dictate. A thin blanket of snow sits in the mountains welcoming in the season and that means we need to start thinking avalanches. It is also the time for replacing beacon batteries and becoming reacquainted with your rescue gear.

ANNOUNCEMENTS
Thank you to everyone who joined us at the Friends of the CNFAIC’s benefit hosted by the Bear Tooth – it was a full house and a great success!!

The calendar is filling up with free awareness classes and other avalanche education courses offered in our area so make plans accordingly. The first of four “fireside chats” starts Nov. 8th in Girdwood (see calendar for further details).

Keep checking our photos/observations page for early season information.

SNOWPACK and AVALANCHE DISCUSSION
For those that have ventured into the hills recently it has been clear that the largest hazards have been along the lines of bears, rocks, stumps and crevasses. The little snow that is on the ground (3-20″) is mostly from mid October with 2-3 inches of light new snow on top. Avalanche activity has been confined to sluffing in either the new snow and/or the weak October snow.

West shoulder of Tincan ridge (~3000′, Nov 1st, 2012)

Future concerns:
We are dealing with a very thin and weak early season snow cover. The snow that fell in mid October sat under clear skies for two weeks and has turned to facets (sugar snow) with some impressive surface hoar (1-20cm) growing on top. When this 3-20″ of weak snow becomes overloaded with additional snow we could see widespread avalanche activity and a rapid rise in danger.  

General snowcover as of November 1st

For today, the few inches of snow with moderate winds has the potential to form pockets of wind slabs near ridgelines and gullies. If triggered these pockets will likely pick up steam as they would entrain the loose faceted snow adding to the size of the slide. Watching for areas with recent wind deposited snow and steering clear of runouts under sustained steep slopes and gullies, where sluffs may run far, are good things to keep in mind. Even a small sluff could be quite painful if caught up in as rocks and stumps abound.

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Fri, November 2nd, 2012
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
Fri, November 2nd, 2012

Though a few inches of light snow fell in Anchorage earlier this week, it wasn’t until Halloween night that Turnagain pass saw 3 inches of their own. Temperatures this week have remained chilly, in the teens and 20’s while winds have been moderate 10-20mph on the ridgelines.  

Today, Friday, the low pressure spinning the Gulf will move our way and with that an increased change for snow over the weekend. Models are showing around 5-8 inches in the Turnagain Pass area. Temperatures are on the rise this morning, around 30F at treeline, and winds should start picking up into 30’s to 40mph by tonight from the east.

CNFAIC Weather Page and the NWS forecast

Observations
Recent Observations for Turnagain Pass
Date Region Location
05/28/22 Turnagain Avalanche: Turnagain Pass – late May wet slab cycle
05/21/22 Turnagain Avalanche: Magnum, Lipps and Tincan
05/17/22 Turnagain Avalanche: Sunburst
05/17/22 Turnagain Observation: Tincan Ridge
05/11/22 Turnagain Avalanche: Cornbiscuit and Magnum west faces
05/07/22 Turnagain Observation: Granddaddy
04/29/22 Turnagain Observation: Sunburst wx station
04/28/22 Turnagain Observation: More Turnagain Pass/Summit Lake wet slab activity
04/27/22 Turnagain Observation: Magnum
04/27/22 Turnagain Observation: Girdwood/Summit/Turnagain Road obs
Riding Areas
Updated Wed, June 01st, 2022

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
Closed as of May 1 per Forest Plan.
Placer River
Closed
Closed as of April 25th due to insufficient snow coverage.
Skookum Drainage
Closed
Closed as of April 1st per Forest Plan.
Turnagain Pass
Closed
Closed as of June 1st.
Twentymile
Closed
Closed as of April 6th due to insufficient snow coverage.
Seward District
Carter Lake
Closed
Closed as of May 1 per Forest Plan.
Lost Lake Trail
Closed
Closed as of May 1 per Forest Plan.
Primrose Trail
Closed
Closed as of May 1 per Forest Plan.
Resurrection Pass Trail
Closed
Closed as of May 1 per Forest Plan.
Snug Harbor
Closed
Closed as of May 1 per Forest Plan.
South Fork Snow River Corridor
Closed
Closed as of May 1 per Forest Plan.
Summit Lake
Closed
Closed as of May 1 per Forest Plan.

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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.