|Turnagain Area Avalanche Advisory|
|Travel Advice: Generally safe avalanche conditions. Watch for unstable snow on isolated terrain features.|
|Show the Complete North American Avalanche Danger Scale|
The avalanche hazard is LOW above and below treeline. A steady melt freeze cycle continues today. A crust on the surface up to ridge top level exists throughout the forecast area. Sunlit aspects will see a small degree of melting. It will take direct sun and a lack of wind to soften these slopes. Very small wet loose avalanches are still a possibility on very steep sunlit slopes today. If triggered, they will be small, predictable and easy to avoid.
LOW hazard does not mean NO hazard. While avalanche activity is unlikely today, it is important to always use good travel practices.
It has been almost 2 weeks since the last measurable snowfall covered the mountains around the forecast zone. The last loading event was on Feb 23rd (as a result of high winds). On this day we had reports of a few slab avalanches as a direct result of sensitive slabs being built by high winds. Over the last 5 days we have had a consistent melt freeze cycle. This cycle initially produced a round of wet loose and a few slab avalanches.
Another solid freeze overnight will keep the surface snow firm for most of the day. Very steep south facing slopes will likely see some melting today. Because of this it will be important to pay attention to the snow surface as it melts. Very small wet loose avalanches will be possible today in this terrain.
Other hazards to consider today are:
Cornices. Give cornices a wide berth both above and below. Sunshine coupled with a lack of wind will aid in destabilizing these features.
Persistent slabs in steep high elevation terrain on the periphery of the forecast zone and in outlying areas. Melt freeze and sun crusts exist on all surfaces up to most ridgelines and summits. Above 4,000’ (which is a small percentage of the terrain in the advisory area) it will be possible to find dry surface snow. 1-3’ below the surface is a weak layer of facets sitting on the January crust. This layer has not been reactive of late but still exists. It will be remotely possible to trigger an avalanche in very steep terrain that has not been subject to this recent melt freeze cycle.
LOW hazard does not mean NO hazard. It is important to continue to practice good travel habits; expose only one person at a time on steep terrain, avoid cornices, communicate your decisions & plans, and carry and know how to use rescue gear.
It has now been 13 days since snow has fallen at the Center Ridge SNOTEL site. Temps over the past 24 hours averaged 31 degrees F at the Sunburst weather station. Winds there have been light out of the West at 5mph with a max gust of 12mph.
Today expect one more day of clear skies and spring like weather. Temps at 1,000’ will climb back into the low 30s F. Winds will remain very light.
A slight chance for snow showers to develop overnight exists. Snowfall will become more likely later in the day Tuesday into Wednesday. Expect an unsettled pattern throughout the week with generally weak Low pressure systems moving through the region.
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 15, 2017 )
|AREA||STATUS||WEATHER AND RIDING CONDITIONS|
|Johnson Pass:||Open||Please park on road in and leave the turnaround (near outhouse) open for trailers to turn around.|
|Skookum Drainage:||Open||Skookum drainage closes to motorized use on April 1 annually as per the Chugach National Forest Plan document.|
|Lost Lake Trail:||Open||Please STAY ON existing and hardened trail surface through the lower sections of this route.|
|Primrose Trail:||Open||Please STAY ON existing and hardened trail surface through the lower sections of this route.|
|Resurrection Pass Trail:||Closed||Closed for 2016/17 winter season. This is a non-motorized season. This alternates every other year and will open again during the 2017/18 winter.|
|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
© 2017 Chugach National Forest Avalanche Information Center. All rights reserved.