Avalanche Forecast Archives

2015 – 2016 Season

Avalanche Advisory for Thursday, April 7, 2016

Date: April 7, 2016
This morning, there is a Low danger in the pockets of wind slab which developed on Tuesday. These are scattered in the steepest areas sheltered from a west wind like beneath the ice in the Lip and Center Bowl and in the mid sections of Chute and Left. Later today, it will become more possible to trigger these slabs as temperatures warm and rain falls. More wind slabs may develop on a south wind, this morning through mid-day, if new snowfall persists before changing over to rain. Anticipate the small pockets of older wind slab and any newer wind slabs developing today to become a wet slab/wet loose problem late in the day and overnight as heavy rain develops.

Avalanche Advisory for Wednesday, April 6, 2016

Date: April 6, 2016
... Today's avalanche problem continues to be Wind Slab. The 5-6" (12.5-15cm) of low density snow that fell on Monday was delivered on moderate winds allowing for widespread wind slab to develop. Expect the most sensitive wind slabs to human triggers to be in the strong lee of mid-elevation Ravine terrain features such as under the Lip, under the Headwall, and above the narrows in the Chute....READ ON FOR MORE

Avalanche Advisory for Tuesday, April 5, 2016

Date: April 5, 2016
Wind slab and avalanche danger will build throughout the day as winds increase. This wind slab will develop on very light density snow and is likely to be touchy even in Moderate rated areas. As the day progresses and loading continues, the likelihood of a naturally occurring avalanche and the potential size of an avalanche will increase, particularly in Considerable rated areas. Entering the floor of the ravine today will potentially put you in the path of avalanches.

Avalanche Advisory for Monday, April 4, 2016

Date: April 4, 2016
Tuckerman Ravine has LOW avalanche danger. All forecast areas in Tuckerman Ravine have Low avalanche danger. Natural and human triggered-avalanches are unlikely. Watch for unstable snow on isolated terrain features. Huntington Ravine is under a General Bulletin. You will need to do your own snow stability assessments when traveling in avalanche terrain in Huntington. A […]

Avalanche Advisory for Sunday, April 3, 2016

Date: April 3, 2016
This advisory will expire tonight at 12:00 midnight. All forecast areas of Tuckerman Ravine have Low avalanche danger. Natural and human-triggered avalanches are unlikely. Watch for unstable snow on isolated terrain features. Huntington Ravine is under a General Bulletin. You will need to do your own snow stability assessments when traveling in avalanche terrain in […]

Avalanche Advisory for Saturday, April 2, 2016

Date: April 2, 2016
Spring hazards you need to know about include...very icy conditions make any slips or falls in steep terrain a very dangerous event. Stopping a fall can be near impossible on hard refrozen rain crusts. Using crampons and and an ice axe is helpful, but not foolproof...Multiple waterfall holes have opened in the Lip, including the open book hole responsible for a hiker fatality April 1, 2012...The Tuckerman Ravine Trail from Pinkham to Hermit Lake is wall-to-wall water ice for long stretches.

Avalanche Advisory for Friday, April 1, 2016

Date: April 1, 2016
Tuckerman Ravine has MODERATE and LOW avalanche danger. The Lip and Center Bowl have Moderate avalanche danger. Natural avalanches are unlikely and human-triggered avalanches are possible. All other forecast areas in Tuckerman Ravine have Low avalanche danger with natural and human triggered-avalanches being unlikely. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted […]

Avalanche Advisory for Thursday, March 31th, 2016.

Date: March 31, 2016
This advisory expires tonight at 12:00 midnight. Tuckerman and Huntington Ravines will have Considerable avalanche danger. Natural avalanches are possible and human triggered avalanches are likely.  Dangerous avalanche conditions will exist. AVALANCHE PROBLEM: The Wind Slab avalanche problem discussed yesterday will begin as the first issue today.  A rising temperature and rain showers will increase the potential for […]

Avalanche Advisory for Wednesday, March 30th, 2016.

Date: March 30, 2016
AVALANCHE PROBLEM: Hard Wind Slab is the avalanche problem today. A period of snow, resulting in modest accumulations, ended about 28 hours ago culminating in very high winds gusting over 130mph (+208kph). You can expect most areas to be scoured of new snow resulting in a patchwork of hard slab that survived in the strongest lee areas of W and WNW winds. Anticipate variable surfaces and stability based on your location. Expect the easiest trigger point of hard slab to be on the outside edges where the depth is typically thinnest as well as shallow mid-slope spots that can be very hard to identify. Worldwide, these locations are classic triggering spots that users miss in their evaluations when skiing and riding.

Avalanche Advisory for Tuesday, March 29, 2016

Date: March 29, 2016
This advisory expires tonight at 12:00 midnight. Tuckerman Ravine has Considerable and Moderate avalanche danger. The Sluice, Lip, Center Bowl, and Chute have Considerable avalanche danger. Natural avalanches are possible and human-triggered avalanches are likely. All other areas have Moderate avalanche danger. All forecast areas of Huntington Ravine have Moderate avalanche danger. Natural avalanches are […]

Avalanche Advisory for Monday, March 28, 2016

Date: March 28, 2016
All forecast areas of Tuckerman and Huntington Ravines have LOW avalanche danger. Natural and human-triggered avalanches are unlikely. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of snow in these areas. AVALANCHE PROBLEM: A remote threat of Wet Slab avalanches is the primary concern later this morning due […]

Avalanche Advisory for Sunday, March 27th, 2016

Date: March 27, 2016
This advisory expires at Midnight. Tuckerman and Huntington Ravines have LOW avalanche danger. Natural and human-triggered avalanches are unlikely. AVALANCHE PROBLEM: Yesterday, we had some lingering wet slab and wet loose concerns in a couple of places with the expected warm up for Saturday. With another day for the snowpack to go through the melt freeze process, […]

Avalanche Advisory for March 26, 2016

Date: March 26, 2016
All areas of Tuckerman and Huntington Ravines have LOW avalanche danger. Natural and human-triggered avalanches are unlikely. AVALANCHE PROBLEM: The snowpack is locked up by a variable density rain crust that developed overnight. A remote threat of a deep weak layers creating a wet slab avalanche exists but would take a big trigger like water flowing into […]

Avalanche Advisory for Friday, March 25, 2016

Date: March 25, 2016
All forecast areas of Tuckerman and Huntington Ravines will have CONSIDERABLE avalanche danger. Natural avalanches are possible and human-triggered avalanches are likely. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of snow in these areas. AVALANCHE PROBLEM: The threat of Wet Slab avalanches is the main concern today. […]

Avalanche Advisory for Thursday, March 24, 2016

Date: March 24, 2016
The bottom line is E and NE facing slopes will move through the Moderate rating definition through the day, many being responsive to human triggers. I have fair confidence that later today, as winds increase, a number of these will edge closer to a Considerable rating definition. However, in most cases this reality should hold off until after dark.

Avalanche Advisory for Wednesday, March 23, 2016

Date: March 23, 2016
Wind slab is going to be the #1 problem again today, although the amount of snow we get this morning will determine whether we are dealing with primarily older slabs or if we also have new slab problems developing today...

Avalanche Advisory for Tuesday, March 22, 2016

Date: March 22, 2016
This advisory expires at 12:00 midnight. Tuckerman Ravine has CONSIDERABLE and MODERATE avalanche danger.  Sluice, Lip, Center Bowl, and Chute have Considerable avalanche danger. Natural avalanches are possible and human-triggered avalanches are likely. All other forecast area have Moderate avalanche danger. Natural avalanches are unlikely but human-triggered avalanches are possible. Lobster Claw, Lower Snowfields, and Little […]

Avalanche Advisory for Monday, March 21, 2016

Date: March 21, 2016
This advisory expires at 12:00 midnight. Tuckerman and Huntington Ravines have CONSIDERABLE avalanche danger.  Natural avalanches are possible and human-triggered avalanches are likely. Careful snowpack evaluation, cautious route-finding and conservative decision making are essential. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of snow in these areas. AVALANCHE […]

Avalanche Advisory for Sunday, March 20, 2016

Date: March 20, 2016
This advisory expires at 12:00 midnight. Tuckerman Ravine has MODERATE and LOW avalanche danger.  Sluice, Lip, and Chute have Moderate avalanche danger.  Natural avalanches are unlikely but human-triggered avalanches are possible.  All other forecast area have Low avalanche danger.  Natural and human-triggered avalanches are unlikely.  Lobster Claw, Lower Snowfields, and Little Headwall are not posted […]

Avalanche Advisory for Saturday, March 19, 2016

Date: March 19, 2016
Tuckerman Ravine has Moderate and Low avalanche danger.  Sluice, Lip and Chute have Moderate avalanche danger. Natural avalanches and unlikely but human-triggered avalanches are possible there. All other forecast areas have Low avalanche danger. Natural and human-triggered avalanches are unlikely. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of […]

Avalanche Advisory for Friday, March 18, 2016

Date: March 18, 2016
.......AVALANCHE PROBLEM: Today's main avalanche problem is Wind Slab. Another 2-3" of snow overnight and an additional few hours of snow this morning, potentially heavy at times, will create new wind slab on specific terrain features. These locations are most likely to occur near ridges in the upper start zones or below terrain features a bit lower. In your travels you can expect mostly hard old surface conditions and low visibility. As you move upslope stay tuned to changing conditions, other individuals that may be triggers, and realize you may be in the runout of wind slab from above. Late in the day winds will rage, triggering another loading event, so expect new wind slab development to wax this morning, wane a bit midday, and then wax again later.

Avalanche Advisory for Thursday, March 17, 2016

Date: March 17, 2016
All forecast areas of Tuckerman and Huntington Ravines may develop MODERATE avalanche danger. Natural avalanches are unlikely and human-triggered avalanches are possible. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of snow in these areas. AVALANCHE PROBLEM: Today’s avalanche problem will require careful assessment of wind and weather […]

Avalanche Advisory for Wednesday, March 16, 2016

Date: March 16, 2016
The snowpack in Tuckerman is likely to continue to melt in place through the warmth today, due to recent rainfalls having already affected the slopes. Avalanche problems are secondary to the spring hazards listed below...

Avalanche Advisory for Tuesday, March 15, 2016

Date: March 15, 2016
This advisory expires tonight at 12:00 midnight. All forecast areas of Tuckerman and Huntington Ravines have Low avalanche danger. Natural and human-triggered avalanches are unlikely. Watch for unstable snow on isolated terrain features. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of snow in these areas. AVALANCHE PROBLEM: Last […]

Avalanche Advisory for Monday, March 14, 2016

Date: March 14, 2016
All forecast areas of Tuckerman and Huntington Ravines have Low avalanche danger. Natural and human-triggered avalanches are unlikely. Watch for unstable snow on isolated terrain features. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of snow in these areas. AVALANCHE PROBLEM: The trace to an inch of snow is […]

Avalanche Advisory for Sunday, March 13, 2016

Date: March 13, 2016
Tuckerman and Huntington Ravines have LOW avalanche danger. Natural and human-triggered avalanches are unlikely. Watch for unstable snow on isolated terrain features. Lobster Claw, The Lower Snowfields and Little Headwall are not posted due to a lack of snow in these areas. AVALANCHE PROBLEM: Considering our current spring like conditions, the likelihood of being caught […]

Avalanche Advisory for Saturday, March 12, 2016

Date: March 12, 2016
...generate potentially large and forceful sluffs. Beware of hazards in your fall line! Falling ice, undermined snow and crevasses have jumped to the top of the list of things that could injure or kill you. Reduce your exposure to these hazards by choosing your line carefully and choose a safer spot out of the fall line than Lunch Rocks or the floor. Waterfall holes have opened up in the already thin snowpack in the Lip/Center Bowl area, creating a significant hazard there.

Avalanche Advisory for Friday, March 11, 2016

Date: March 11, 2016
All forecast areas of Tuckerman Ravine have Considerable avalanche danger. Natural avalanches are possible and human-triggered avalanches are likely. Careful snowpack evaluation, cautious route-finding and conservative decision making are essential. Lobster Claw, the Lower Snowfields, and Little Headwall are not posted due to a lack of snow in these areas. Huntington Ravine has Considerable, Moderate […]

Avalanche Advisory for Thursday, March 10, 2016

Date: March 10, 2016
Wet slabs and persistent slabs are the avalanche problems today. Continued warm temperatures will reach deeper into the snowpack and further destabilize slopes. Rain may also add weight and further weaken the already stressed weak layers in the snowpack. Consider the small natural avalanche in Center Bowl yesterday as confirmation of red flags created by a warming trend. A layer of weak, sugary facets had not yet been reached by warming temperatures yesterday. Today’s warmth and rain might awaken a larger avalanche dragon.

Avalanche Advisory for Wednesday, March 9, 2016

Date: March 9, 2016
Wet slabs and persistent slabs are the avalanche problem today. Prolonged warming and the potential for light rain will have a destabilizing effect on the snowpack in both ravines...