| Posted: 8:52 a.m., Sunday, January 29, 2006 |
Huntington Ravine has LOW avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikely except in isolated pockets.
The strong winds are beginning to subside after pummeling the mountain for two days straight. Clouds are building and we expect to see light snow showers start sometime this afternoon. Heavier snow will fall overnight but its effect on stability will be manifested tomorrow, and today’s forecast is based primarily on our current conditions. The recent high winds out of the W & NW did a wonderful job of stripping snow from the Summit Cone and dropping it onto Tuckerman’s E through S aspects. Many of these areas avalanched during the beginning of the weather event and then reloaded with new snow. Fracture lines have been concealed and these slopes are now waiting anxiously for a human trigger. The Lip and the abutting areas in the Sluice and Headwall are on the upper end of the Moderate rating today and provide the most concern. These areas picked up the most new snow and have proved their ability to generate big slides. The potential for a person to trigger an avalanche is higher here than anywhere else. New slabs are sitting on top of a old slick rain crust in many areas while this crust is exposed in others, especially in Huntington. Where exposed it presents a concern for travelers who may need to stop a sliding fall. The reason for this is because self-arrest on this surface is VERY difficult. It makes for good climbing conditions but awful stopping conditions. Be ready with crampons, an ice axe and solid technique if you plan on traveling on the upper parts of the mountain today.
The Lion Head Winter Route is open. Mountaineering skills and equipment are required for safe travel on this route.
The Sherburne Ski Trail is open with varying conditions. Expect slush, dirt, long sections of water ice, deep waterbars and water channels that can grab a ski tip very quickly. Afternoon snow may disguise some of these hazards.
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Avalanche Advisory Archives.
United States Avalanche Danger Descriptions.
Échelle Canadienne de risque d’avalanche.
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