Avalanche Advisory for Friday, 4-26-2013

This advisory expires tonight at 12:00 midnight.

Tuckerman Ravine has Low avalanche danger. Natural and human triggered avalanches are unlikely except in isolated terrain features. Huntington Ravine is not posted. We are no longer monitoring conditions in Huntington this season. You will need to do your own snow stability assessments. A danger of falling ice exists and will persist until it all comes down.

Every season is a little different, for certain, but right now the weather pattern we’ve been going through feels like any other late April. Warm days and cold nights are the norm, some days the snow is guaranteed to soften, others its more questionable. Today, as temperatures in the ravine easily rise above the freezing mark and with nearly imperceptible winds, I would bet good money that the snow surfaces will be in good shape in a few hours. But, like every other late April, there are showers in the forecast. Don’t be surprised if you get a little wet this afternoon. Take advantage of the time frame after the snow becomes soft and before the clouds move in. Later today we’ll post a Weekend Update with our thoughts on the upcoming weekend.

Falling ice is an increasingly common occurrence at this point in the season. Over the years many people have been severely injured or killed by icefall in Tuckerman, while countless others have had close calls. It’s hard to truly appreciate the seemingly random, unpredictable power of this hazard until you’ve seen it firsthand. Take our advice: Minimize the time you spend in areas where ice may fall from above you, such as under the headwall or at Lunch Rocks. Despite its popularity, Lunch Rocks is not a safe place for watching the action.

Crevasses are opening up in many areas. The worst of these can be found in the Lip area and Center Bowl. The smallest ones may just trip you up a little, but others are far more dangerous. Some are quite deep, others have icy water  splashing through them, and some are hidden from view by rollovers or a thin bridge of snow. The best way to avoid this hazard is to know where the holes are located, and avoid these areas. You can do this by climbing up what you plan to descend.

The Sherburne Ski Trail is closed about 0.75 miles uphill of Pinkham Notch. At the rope, you will need to cross over to the hiking trail and walk down to the parking lot. PLEASE do not walk or attempt to ski down this muddy trail below the rope as it isn’t built for foot travel, will contribute to the erosion of this trail, and cover you with wet mud. The skiable section of trail is shrinking daily so you may want to leave the trail at an earlier cutoff than where it hangs now above the switchbacks.

Forest Service snow machines have been put away for the year and Snow Rangers are not on the mountain everyday due to other responsibilities on the White Mountain National Forest.  Though we are closely monitoring conditions and are ready to respond to incidents, our response time will be greatly increased.  As always, you need to be ready to initiate and carry out your own rescue effort so be prepared with the knowledge and equipment to effectively help yourself or someone else in your party.

Please Remember:

  • Safe travel in avalanche terrain requires training and experience. This advisory is just one tool to help you make your own decisions in avalanche terrain. You control your own risk by choosing where, when, and how you travel.
  • Anticipate a changing avalanche danger when actual weather differs from the higher summits forecast.
  • For more information contact the Forest Service Snow Rangers, the Mount Washington Volunteer Ski Patrol, or the AMC at Pinkham Notch Visitor Center.
  • Posted at 7:10 a.m., April 26, 2013. A new advisory will be issued tomorrow.

Jeff Lane, Snow Ranger
USDA Forest Service
White Mountain National Forest
(603) 466-2713  TTY (603) 466-2856

2013-04-26 Printable