Avalanche Advisory for Tuckerman and Huntington Ravines
Posted: 7:41 a.m., Monday, January 5, 2004

Tuckerman and Huntington Ravines currently have LOW avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikely except in isolated pockets. Normal caution is advised.

The Alberta Clipper that is south of us now will be tracking northeast today. Unfortunately precipitation amounts are not forecasted to be too impressive in the northern part of the state. We expect to receive 5 cm (2 in) of snow in the mountains throughout the day. Winds on the summit are currently light out of the ENE and expected to move to the south later today and have wind speeds of 24 to 40 kph (15 to 25 mph). If this forecast plays out we could see some loading on north aspects later today. New snow that falls today will be landing on a variable crust layer. In some places this crust is smooth and can support body weight. In other places in is thin and rough and will not support body weight. Pay attention to these characteristics today as the crust will determine how well the new snow will bond to the old surface. Keep your eyes open for changing conditions today. If we receive more snow and/or wind than is forecasted, instabilites may become more widespread.

The John Sherburne ski trail has variable conditions. Expect areas of ice, some blowouts, abrupt water bars, open holes, and running water. Recent warm temperatures and rain have exaggerated these problems. With a couple of inches of new snow, many of these problems will be hidden but not cured.

THE LION HEAD WINTER ROUTE IS OPEN. This is a steep and challenging route. Ice axe, crampons, and the skill to use them well are necessary for safe travel. Remember, it is always easier to go up than come down.

AS ALWAYS, THIS ADVISORY IS ONE MORE TOOL TO HELP YOU MAKE YOUR OWN DECISIONS IN AVALANCHE TERRAIN. It should be used along with your own snow stability assessments, knowledge of safe travel techniques, skill in reading mountain weather's effect on the snowpack, and avalanche rescue.

Please Remember:
•   ****Any new precipitation may increase the avalanche danger, this includes wind transported snow. ****Obtain the latest weather forecast before starting out. ****For more information, contact any of the following: U.S. Forest Service Snow Rangers, AMC at the Pinkham Notch Visitor Center, AMC at the Hermit Lake Shelters, HMC at the Harvard Cabin. ****This avalanche advisory will expire at midnight.****

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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