Thursday, April 15th 2010 6:56 am by CNFAIC Staff
ARCHIVED ADVISORY - All advisories expire after 24 hours from the posting date/time.
First of all, we want to thank you for staying safe in avalanche terrain and helping make this avalanche center an important resource for South Central Alaska and the Kenai Peninsula. Your observations help steer this operation in the right direction. Remember that your information could save a life; so, we want to give a HUGE THANK YOU to everybody that submitted observations this year. We'd also like to thank the Friends of the Chugach National Forest Avalanche Information Center and our major funding partners. You are a great group of people with a passion of helping keep people safe in the backcountry, THANK YOU for all your support. Additionally, we want to thank:
-Alyeska Ski Patrol
-Alaska Avalanche School
-Alaska Pacific University
-Chugach Powder Guides
-and many CNFAIC Staffs
for sharing important avalanche information for us to pass on to the backcountry community.
There are still plenty of weak layers including: pockets of buried surface hoar, sun crusts, a deep rain crust that formed January 7, and facets buried deep in the snowpack. We will see avalanches on these weak layers, especially:
-during the big spring thaw
-within 24 hours of storms
-during times of direct sunlight
-rapidly warming temps
-during rain on snow events
Every year, there is a time when the snowpack completely falls apart due to the spring thaw. This could happen any time in the next couple weeks. Many times, this extremely dangerous avalanche cycle starts after 2-3 days of sustained above freezing temps at the ridgetop weather stations during periods of direct sun or intense rain. When that spring thaw happens, we all need to stay away from the mountains till this cycle is done. We will see large destructive avalanches that could fail on deep weak layers during that time.
Thanks for checking avalanche advisories this season. Stay tuned for periodic updates to the photo gallery and snow history. Have a great spring and summer.
|Show the Complete North American Avalanche Danger Scale|
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).
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: Mar 16, 2019 )
|AREA||STATUS||WEATHER AND RIDING CONDITIONS|
|Placer River:||Open||Very wet. Travel not recommended until a re-freeze.|
|Skookum Drainage:||Open||Note: The Skookum drainage closes to snowmachines on April 1 annually as per the Chugach NF Forest Plan.|
|Twentymile:||Open||Very wet. Travel not recommended until a re-freeze.|
|Lost Lake Trail:||Open||Please stay on trail to avoid resource damage through forested areas.|
|Primrose Trail:||Open||Please stay on trail to avoid resource damage through forested areas.|
|Resurrection Pass Trail:||Closed||Closed for the 2018/19 season. Next season will be open to motorized use.|
|South Fork Snow River Corridor:||Open|
SNOW AND AVALANCHE HOTLINE (907) 754-2369
If you have comments or questions regarding CNFAIC operations or winter recreation management, please email firstname.lastname@example.org
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