Avalanche Advisory for Tuckerman and Huntington Ravines
Posted: 7:08 a.m., Sunday, December 10, 2006

This is an early season GENERAL AVALANCHE ADVISORY. Use of the 5-scale danger rating system will begin when conditions warrant. Until then new advisories will be issued as needed. A General Advisory is issued when instabilities are isolated within the entire forecast area. However it's important to realize that avalanche activity may occur within these locations before the issuance of a 5-scale forecast. This is a critical fact to remember. Under a General Advisory you need to make your own avalanche stability assessments before venturing into any open slopes. Realize that snowfields may be developing on existing summer trails. Check tuckerman.org frequently as we move through December. Always check the latest avalanche advisory before heading into avalanche terrain.

Several moisture starved fronts will pass through the area over the next couple of days providing a threat of snow showers in the mountains. We can also expect to see temperatures a bit above normal. It looks like our next hope for some snow will be Wednesday, however, temperatures may be on the warm side to give us what we want. An active pattern will continue into the weekend as well providing some potential for the white stuff. It isn't worth sugar-coating our current conditions because we just don't have much snow. Left Gully and the Chute managed to hang on to some snow during the November thaw and they provide the most potential for avalanches during the next weather event. Other pockets have developed around the Ravines which could create isolated stability issues for ice climbers. It only takes a small area underfoot to give way to cause some dire results. Don't focus all your attention on the size of an avalanche, but on the consequences of what will happen to you. If you do plan on doing some ice climbing realize ice just started forming about 8 days ago and conditions are still thin in many areas. If you do intend to climb leave the pickets at home and bring rock gear with a focus on small protection.

Winter is here so don't plan on being able to follow summer trails safely without the right equipment. Be ready for the conditions you'll face with appropriate winter gear, i.e. winter clothes, ice axe, crampons, avalanche beacons, shovels, and probes. Don't wait any longer to refresh your avalanche skills. Pull out your beacon, install some fresh high quality alkaline batteries, and practice. Review your safe travel rules, techniques for assessing snow stability, and sign up for an avalanche course.

Avalanche courses offered in the valley this winter are now on our website, tuckerman.org.

Please Remember:
•   It is impossible to accurately predict natural events, such as avalanches, in every instance. This Advisory is one tool to help you make your own decisions in avalanche terrain. It should be used along with safe travel techniques, snow stability assessments, an understanding of weather's effect on the snowpack, and proficiency in avalanche rescue.
 
•   You should obtain the latest weather forecast before heading into the mountains. Anticipate a changing avalanche danger when actual weather differs from the National Weather Service forecast.
 
•   For more information, contact the U.S. Forest Service Snow Rangers, the HMC Caretaker at the Harvard Cabin, and the AMC at Pinkham Notch Visitor Center or Hermit Lake Shelters.

Brian Johnston, Snow Ranger
USDA Forest Service
White Mountain National Forest
(603) 466-2713 TTY (603) 466-2856
 
This is the Official Tuckerman Ravine website.  Occasionally the remoteness of Tuckerman Ravine, weather, or communication problems prevent the website from being updated immediately.  Check the date, and if it is not the most recent, you can also call the National Forest Service's 24 hour avalanche hotline at (603) 466-2713 (ext. 4)

Avalanche Advisory Archives.

United States Avalanche Danger Descriptions.

Échelle Canadienne de risque d’avalanche.

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