Avalanche Forecast Archives

2015 – 2016 Season

Avalanche Advisory for Sunday, February 7, 2016

Date: February 7, 2016
Tuckerman Ravine has MODERATE and LOW avalanche danger.  Lip, Center Bowl, Chute and Left Gully have Moderate avalanche danger. Natural avalanches are unlikely and human-triggered avalanches are possible. Evaluate snow and terrain carefully to identify features of concern.  Right Gully, Sluice and Hillman’s Highway have Low avalanche danger. Natural and human-triggered avalanches are unlikely. Watch for […]

Avalanche Advisory for Saturday, February 6, 2016

Date: February 6, 2016
Wind Slabs will continue as the main avalanche problem today. 2” (5cm) of snow yesterday and high winds overnight, coupled with additional light snow this afternoon, continue some concern for new wind slab. In strongly sheltered locations protected from the wind you will find slab problems being harbored while on exposed slopes you are likely to find many areas scoured clean. Expect high spatial variability of the slab problem from none on some exposed slopes, to touchy pockets in the sheltered deposition of W and NW winds.

Avalanche Advisory for Friday, February 5, 2016

Date: February 5, 2016
New Wind Slabs will be the developing avalanche problem today. All areas are starting the day at Low avalanche danger with widespread hard old surfaces. New snow and building winds will develop new low to moderate density thin slabs on slick bed surfaces through the day. Anticipate larger snowfields to push through the Moderate rating hedging towards Considerable if we reach the upper end of the precipitation forecast.

Avalanche Advisory for Thursday, February 4, 2016

Date: February 4, 2016
...a good idea to assume a larger avalanche could run this morning from those areas with the greatest amount of snow. Be wary of a similar issue in the few areas of Huntington which have a significant amount of snowpack remaining. This problem will diminish through the day as colder air moves into the region and refreezes the snowpack. Expect a Low rating by day’s end....

Avalanche Advisory for Wednesday, February 3, 2016

Date: February 3, 2016
All forecast areas of Tuckerman Ravine have MODERATE avalanche danger.  Heightened avalanche conditions exist. Evaluate snow and terrain carefully and identify features of concern. Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine has Moderate avalanche danger in Central, Pinnacle, […]

Avalanche Advisory for Tuesday, February 2, 2016

Date: February 2, 2016
All forecast areas of Tuckerman and Huntington Ravines have Low avalanche danger...The avalanche problem today is that we really don't have one. However, there is a serious threat today caused by dangerously icy conditions.

Avalanche Advisory for February 1, 2016

Date: February 1, 2016
...melting temperatures at Ravine elevations has created the potential for Wet Slab and Wet Loose avalanches. Of these two avalanche problems, Wet Slab avalanches are the most dangerous problem and could occur without a human trigger in Considerable rated areas. These slabs could be large enough to easily bury a person...

Avalanche Advisory for Sunday, January 31, 2016

Date: January 31, 2016
Tuckerman Ravine has MODERATE avalanche danger.  Natural avalanches are unlikely and human triggered avalanches are possible.  Heightened avalanche conditions on specific terrain features exist. Evaluate snow and terrain carefully to identify features of concern.  Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Huntington Ravine has MODERATE and […]

Avalanche Advisory for Saturday, January 30, 2016

Date: January 30, 2016
A number of slopes, particularly with an E facing aspect, will be bumping the ceiling of the Moderate rating later today. As we move into darkness and slabs grow I would have a greater concern for natural avalanches probably crossing over towards a Considerable rating during the overnight.

Avalanche Advisory for Friday, January 29, 2016

Date: January 29, 2016
All forecast areas of Tuckerman Ravine have LOW avalanche danger.  Natural and human triggered avalanches are unlikely.  Watch for unstable snow in isolated areas.  Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a General Avalanche Bulletin which is issued when […]

Avalanche Advisory of Thursday, January 28, 2016

Date: January 28, 2016
All forecast areas of Tuckerman Ravine have LOW avalanche danger.  Natural and human triggered avalanches are unlikely.  Watch for unstable snow in isolated areas.  Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a General Avalanche Bulletin. General Bulletins are […]

Avalanche Advisory for Wednesday, January 27, 2016

Date: January 27, 2016
This advisory expires 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 in isolated areas.  Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a […]

Avalanche Advisory for Tuesday, January 26, 2016

Date: January 26, 2016
AVALANCHE PROBLEM: The primary avalanche problem today is windslab. After forming during the high winds almost 7 days ago, these firm slabs remain unreactive. I expect to find overall good stability around Tuckerman. However, as the total snow for the season is still low, there are areas where the slab could be thin enough to allow a person’s weight break the bridging strength and initiate a crack. These areas primarily exist where terrain features have only recently been covered, such as the Lip and Center Bowl.

Avalanche Advisory for Monday, January 25, 2016

Date: January 25, 2016
All forecast areas of Tuckerman Ravine have LOW avalanche danger.  Natural and human triggered avalanches are unlikely.  Watch for unstable snow in isolated areas.  Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a General Avalanche Bulletin. General Bulletins are […]

Avalanche Advisory for Sunday, January 24, 2016

Date: January 24, 2016
Wind slabs continue to be the primary avalanche problem. Continued cold temperatures have not contributed to a trend towards stability so be aware that the hard windslabs in the Ravine could still fracture. These slabs are thick and strong in most areas of slopes like Right Gully, the Sluice, Left Gully and even lower in Center Bowl where a person would be hard pressed to find a thin spot to create a fracture. In the steepest terrain, it may be possible to trigger a hard slab given a human trigger over a thin and unsupported area or convexity.

Avalanche Advisory for Saturday, January 23, 2016

Date: January 23, 2016
All forecast areas of Tuckerman Ravine have LOW avalanche danger.  Natural and human triggered avalanches are unlikely.  Watch for unstable snow in isolated areas.  Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a General Avalanche Bulletin. General […]

Avalanche Advisory for Friday, January 22, 2016

Date: January 22, 2016
All forecast areas of Tuckerman Ravine have MODERATE avalanche danger.  Natural avalanches are unlikely and human-triggered avalanches are possible. Evaluate snow and terrain carefully. Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a General Avalanche Bulletin. General […]

Avalanche Advisory for Thursday, January 21, 2016

Date: January 21, 2016
All forecast areas of Tuckerman Ravine have MODERATE avalanche danger. Heightened avalanche conditions exist on specific terrain features.  Natural avalanches are unlikely and human-triggered avalanches are possible. Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a General […]

Avalanche Advisory for Wednesday, January 20, 2016

Date: January 20, 2016
All forecast areas of Tuckerman Ravine have MODERATE avalanche danger. Heightened avalanche conditions exist on specific terrain features.  Natural avalanches are unlikely and human-triggered avalanches are possible. Lobster Claw, Lower Snowfields, and the Little Headwall are not posted due to lack of snow cover. Exercise caution in these areas. Huntington Ravine is under a General […]

Avalanche Advisory for Tuesday, January 19, 2016

Date: January 19, 2016
All forecasted areas of Tuckerman Ravine have Considerable avalanche danger. Dangerous avalanche conditions exist...on Mt. Washington, wind transport of recently fallen snow is causing elevated avalanche hazard. Additional upslope snow is expected today which will mix with the blowing snow as winds remain remarkably strong.

Avalanche Advisory for Monday, January 18, 2016

Date: January 18, 2016
Tuckerman Ravine has Considerable and Moderate avalanche danger. Huntington Ravine is under a General Avalanche Bulletin. ...new snow with increasing winds today will create new wind slabs which will have the classic "upside-down" structure to it. This creates a dangerous situation where a slab rests over lighter, weaker snow. We expect today's wind loading to exacerbate both the previously existing slabs, which have probably been slow to stabilize, as well as the newly created ones.....

General Bulletin for Saturday, January 16, 2016

Date: January 16, 2016
...remember that avalanche activity may occur before the issuance of a 5-scale danger rating forecast. As always, make your own snow stability assessments when traveling in avalanche terrain... snowfields can be found in Left Gully, the Chute, and in the Lip region of Tuckerman. In Huntington, Central Gully holds the largest snowfields, but others exist in various locations, such the base of Pinnacle and Odell gullies....all of these pockets are going to be subjected to additional load over the course of the next few days.

General Bulletin for Thursday, January 14, 2016

Date: January 14, 2016
...upslope snow will continue to grow existing small snowfields and create the potential for unstable albeit isolated, slabs. Wind speeds will be favorable for creating wind slabs as well, so use caution when approaching steep snow fields. Our terrain has a history of turning small scale snow events into a subtle, yet dangerous, avalanche problem that can catch the unwary off guard. Even a small avalanche can knock you off of your feet...

General Bulletin for Monday, January 11, 2016

Date: January 11, 2016
...winter weather will likely continue through Wednesday, with the possibility for several inches of snow Tuesday afternoon into Wednesday morning. With the icy surface left that developed due to Sunday’s rain and the wind loading that will occur over the next 72 hours, expect snow fields to grow and develop potentially reactive wind slabs. Higher wind velocities such as those that are forecast tend to build wind slabs lower in our terrain….precisely where the largest of our small snowfields currently reside....

General Bulletin for Tuckerman and Huntington Ravines

Date: January 8, 2016
This is the initial GENERAL AVALANCHE  BULLETIN for the 2015-2016 season.  A new General Bulletin will be issued if conditions warrant or within 72 hours of this release. General Bulletins are issued when isolated areas of unstable snow may exist within the forecast areas. Forecasts using the 5-scale danger rating system will begin when snowfields […]

Early Winter Information – January 3, 2016

Date: January 3, 2016
This is an updated early winter informational statement. We’ll continue to monitor conditions closely and will issue a General Bulletin or Avalanche Advisory when the likelihood and consequence of avalanches increase. Winter continues to spool up and the mountains are becoming whiter and colder everyday. Since the storm that blanketed the region on Tuesday we have seen an additional 7.4" of snow over the past few days.

Early Winter Information – December 29, 2015

Date: January 2, 2016
This is an updated early winter informational statement. We’ll continue to monitor conditions closely and will issue a General Bulletin or Avalanche Advisory when the likelihood and consequence of avalanches increase. We have been paying attention, for sure, but Mother Nature has not been cooperative in getting this winter underway. Today (12/29) we are experiencing a […]

Early Winter Information – December 29, 2015

Date: December 29, 2015
This is an updated early winter informational statement. We’ll monitor conditions closely and will issue a General Bulletin or Avalanche Advisory when the likelihood and consequence of avalanches increase. We have been paying attention, for sure, but Mother Nature has not been cooperative in getting this winter underway. Today (12/29) we are experiencing a winter storm across the entire region...This new snow will have an effect, but prior to it there was only about 1" of snow sitting on the ground.

Early Winter Information – December 19, 2015

Date: December 20, 2015
Current conditions in the ravines are more similar to late fall than typical December. Very little snow has fallen so far this season, and average temperatures have been well above normal.

Early Winter Information for Tuckerman and Huntington Ravines- December 11, 2015

Date: December 12, 2015
This is an updated early winter informational statement.  A “General Bulletin” or a “5 Scale Avalanche Advisory” will be used when conditions warrant.  This early season posting is to communicate that some initial winter hazards on Mount Washington are beginning to grow requiring some risk assessment and thought on your part.  We’ll monitor conditions closely and […]