Saturday, December 10th 2011 6:43 am by Kevin Wright
ARCHIVED ADVISORY - All advisories expire after 24 hours from the posting date/time.
The avalanche hazard will increase today proportionately to the snow and wind from the storm. The danger level will likely go through a wide spectrum, from generally LOW this morning to CONSIDERABLE tonight as the storm ramps up. The most dangerous conditions likely to be encountered during daylight hours today are MODERATE. Watch the weather and make travel decisions based on the conditions you are seeing.
There are 2 distinct discussions today - before the storm and after the storm arrives.
1. Before the storm arrives late today the primary concern is isolated windslab at upper elevations. Watch the snow depth and feel the density changes as you travel to track those slabs. Be aware they could break unexpectedly near ridgetops under human weight.
All of our data indicates a decreasing avalanche trend over the last few days. That trend will continue this morning but reverse this afternoon.
2. AnCNFAIC Staff storm is entering the region and intensifying by 6pm. Heavy snow, wind, and increased temperatures are expected, which will raise the avalanche danger. The general pattern is very similar to the storm from a week ago. It looks like it wont affect people doing day trips today, but could become dangerous quickly in the evening and by tomorrow morning. The National Weather Service is issuing a Blizzard Warning at 6pm tonight for Turnagain Pass North. A Blizzard Warning means that severe winter weather conditions are expected. All travel and outdoor activity is strongly discouraged.
This week has been a mixed bag of weather. The intense storm last Sunday caused many natural avalanches from Seward to Hatcher Pass. Since then a mid week snowfall covered the breakable rain crust with a pleasant 4-8 inches of dry snow. Tonight, conditions will change again with Blizzard conditions forecasted. A deep Low in the Bering Sea is bringing an intense stream of moisture from lower latitudes North into Alaska. Heavy snow tonight with 7-16 inches is expected. East wind 40-60mph or higher.
CNFAIC Weather Page and the NWS forecast
Wendy will issue the next advisory tomorrow morning at 7am. 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.
|Show the Complete North American Avalanche Danger Scale|
|Travel Advice: Heightened avalanche conditions on specific terrain features. Evaluate snow and terrain carefully; identify features of concern.|
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: Jan 13, 2019 )
|AREA||STATUS||WEATHER AND RIDING CONDITIONS|
|Twentymile:||Closed||Closed. Forest Service is monitoring conditions.|
|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
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