Avalanche Advisory for Tuckerman and Huntington Ravines
Posted: 8:29 a.m., Tuesday, January 24, 2006

Tuckerman Ravine has both LOW and MODERATE avalanche danger. Right gully Left gully, Lower Snowfields and Hillman's Highway have Low avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikely EXCEPT IN ISOLATED POCKETS. Normal caution is advised. The Bowl, Headwall, Lip, Sluice, and the Chute have Moderate avalanche danger. Natural avalanches are unlikely and human triggered avalanches are possible. Use caution in steeper terrain. We have temporarily stopped forecasting for the Little Headwall due to a lack of snow in that area.

Huntington Ravine also has both LOW and MODERATE avalanche danger. The Escape Hatch, Yale, Damnation, and North gullies have Low avalanche danger. Natural avalanches are very unlikely and human triggered avalanches are unlikely except in isolated pockets. Normal caution is advised. South, O'dell's, Pinnacle and Central Gullies have Moderate avalanche danger. Natural avalanches are unlikely and human triggered avalanches are possible. Use caution in steeper terrain.

Well we will take what we can get, the Summit reported a little over 2" (5cm) of snow from yesterdays storm. Here at Hermit Lake we recieved 2.4" (6.1 cm). With the winds starting from the S and moving around to the W, NW the N through E aspects received the bulk of this new snow. The new snow is sitting on a very hard surface waiting for the right trigger. Areas that are posted at Low do have isolated pockets of wind slab. We received a report that folks encountered more than 12" of new snow in Right gully yesterday. Remember just because the Summit only received a couple inches doesn't mean that Ravines did not pick up more from the winds transporting this snow. Your best bet is to stay on old surface when possible. This morning's blue skies are forecasted to give way to increasing clouds. A low pressure system is forecasted to be moving in later today bringing us the chance of light accumulations of snow late tonight and into tomorrow. Winds are expected to stay relatively light.

After telling you that you should stick to old surface where possible the other hazard to be conscience of is the extraordinarily hard old surface conditions. To call it bullet proof is truly an understatement. Crampons, an ice axe and solid technique are a must in most areas on the upper part of the mountain today. Our snowpack is better described as an "icepack" and self-arrest would be very difficult to execute successfully. Use caution and be honest about your skills and mountaineering experience.

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 thin cover and varying conditions. New snow is covering long sections of water ice, deep waterbars and water channels that can grab a ski tip very quickly. New snow is helping to improve our thin icy conditions but we do need much more.

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 AMC at Pinkham Notch Visitor Center or Hermit Lake Shelters, or the HMC caretaker at the Harvard Cabin. This avalanche advisory expires 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.

Back to the Tuckerman Ravine Home Page

at *Ň