CNFAIC LogoCNFAIC Logo

Avalanche Advisory

Turnagain Area Avalanche Advisory
Forecaster:   Wendy Wagner  
Thursday, December 29th 2011
Created: Dec 29th 6:47 am
2 Moderate Alpine / Above 2,500' Travel Advice: Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
2 Moderate Treeline / 1,000'-2,500' Travel Advice: Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
2 Moderate Below Treeline / Below 1,000' Travel Advice: Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.
 Show the Complete North American Avalanche Danger Scale
SLR Consulting
The Bottom Line
Good morning. This is Wendy Wagner with the Chugach National Forest Avalanche Information Center on Thursday, December 29th at 7am. This will serve as 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).

BOTTOM LINE
The avalanche danger is MODERATE on steep slopes today for loose snow avalanches. Human triggered sluffs will be possible, and though often a manageable situation, could be more dangerous if tripped up in unforgiving terrain. There are also pockets of MODERATE danger in isolated steep upper elevations for lingering wind slabs and cornice breaks. Outside these areas the danger is generally LOW.

AVALANCHE DISCUSSION
The last few days of intermittent snow showers, cold temperatures and light winds have made for some pleasant riding conditions in our area. The only avalanche activity seen or reported the last two days has been loose snow avalanches. These have been mostly minor and not packing much punch.

Todays primary concern will continue to be loose snow sluffing. Human triggered sluffs will be possible to initiate in the steeper terrain. Though these types of avalanches are typically manageable, there is still a chance a person could get knocked off their feet and sent over rocks or a cliff. "Sluff management" techniques could be a useful tool today.

The second concern will be triggering a lingering wind slab or cornice break. Though it has been over 24 hours since the last wind loading event and the pack has mostly adjusted, there are always some isolated areas that could surprise you, especially in the steep upper elevations where the snowpack is more variable.


MOUNTAIN WEATHER
Yesterday, we saw partly cloudy skies with temperatures in the single digits. A trace of snow fell over the course of the day with light westerly winds on the ridges. Overnight, temperatures have dropped into the negative single digits above 3000 and are just above 0F at 1000. Winds remain light from the west, blowing around 5mph on the Sunburst Ridge.

Today we have anCNFAIC Staff cold day on tap. Temperatures are currently hovering around 0F and will have a hard time rising into the double digits. However, the good news is, the winds will be calm as we sit under the center of a large low pressure system. Expect partly to cloudy skies with a chance for a flurry or two as clouds filter in and out through the day.


CNFAIC Weather Page and the NWS forecast

Kevin will issue the next advisory tomorrow morning. If you get out in the backcountry we want to know what you are seeing. Please send us your observations using the button at the top of this page or give us a call at 754-2369. Thanks and have a great day.


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).

Winter snowmachine use open/closed status and riding conditions updates

Riding status is not associated with avalanche danger. An area will be open to motorized use in accordance to the Forest Management Plan when snow coverage is adequate to protect underlying vegetation. Backcountry hazards including avalanche hazard are always present regardless of the open status of motorized use areas.

(Updated: May 16, 2017 )

AREA STATUS WEATHER AND RIDING CONDITIONS
Glacier District
Johnson Pass: Closed
Placer River: Closed
Skookum Drainage: Closed
Turnagain Pass: ClosedThanks all for a safe and fun season on the Chugach NF! Stay tuned for the 2017/18 season. #playsafe #snowtosealevel
Twentymile: Closed
Seward District
Carter Lake: Closed
Lost Lake Trail: Closed
Primrose Trail: Closed
Resurrection Pass Trail: ClosedResurrection Pass trail will be open to snowmachine use during the 2017/18 winter season.
Snug Harbor: Closed
South Fork Snow River Corridor: Closed
Summit Lake: Closed

Subscribe to the Turnagain Area Avalanche Advisory:

The information in this advisory is from the U.S. Forest Service, which is solely responsible for its content. This advisory describes general avalanche conditions and local variations always occur. This advisory provided by the Chugach National Forest, in partnership with Friends of the Chugach National Forest Avalanche Information Center.


USFS SNOW AND AVALANCHE HOTLINE (907) 754-2369
If you have comments or questions regarding CNFAIC operations or winter recreation management, please email staff@chugachavalanche.org
© 2017 Chugach National Forest Avalanche Information Center. All rights reserved.
FCNFAIC