Avalanche Advisory for Tuckerman and Huntington Ravines
Posted: 8:40 a.m., Tuesday, January 13, 2004

Tuckerman Ravine currently has LOW, MODERATE, and CONSIDERABLE avalanche danger. The Little Headwall and Lower Snowfields have Low avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikey. Normal caution is advised. Right Gully, Left Gully and Hillmans Highway have Moderate avalanche danger. Natural avalanches are unlikely and human triggered avalanches are possible. Unstable slabs are possible on steep terrain. Use caution in steeper terrain. The Bowl, Headwall and Lip have Considerable avalanche danger. Natural avalanches are possible and human triggered avalanches are probable. Unstable slabs are probable on steep terrain. Be increasingly cautious in steep terrain.

Huntington Ravine has LOW and MODERATE avalanche danger. The Escape Hatch, South Gully, Damnation, and North Gully have Low avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikely except in isolated pockets. Normal caution is advised. O'dells, Pinnacle, Central, and Yale gully have Moderate avalanche danger. Natural avalanches are unlikely and human triggered avalanches are possible. Unstable slabs are possible on steep terrain. Use caution in steep terrain.

The summit received less than 2.5 cm (1 in) of new snow in the last 24 hours. The thing to take note of were the winds. They moved around to the WNW late yesterday and picked up, averaging 65 kph(40 mph). In the early morning hours they moved around to the West. These winds have moved around the light density snow that fell yesterday, especially onto lee slopes. It is currently snowing lightly. Snow is in the forecast for this morning. It is expected to dissipate as a low pressure system moves through. On the coat tails of this low another arctic blast is coming our way. Winds will move around to the NW, intensify and temperatures will plummet. This artic air is expected to stick around the remainder of the week.

The John Sherburne ski trail has variable conditions. Expect a blanket of snow hiding areas of water ice, some blowouts, abrupt water bars and open holes. There are a few new areas of water ice which have appeared on the trail today. Be prepared for sudden changes in the trail.

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.****

Marianne Leberman, 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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