Tuckerman’s Ravine Observations Going up Right Gully

December 11, 2019
By Eric Newton – Rensselaer Outing Club

Warm up and rain the last couple days condensed the snowpack considerably. Top firm alpine snow crust is about two to three inches thick. Beneath is dense snow of variable depth depending where you are. Lots of water still running underneath the . . .

Tuckerman Ravine from the floor of the Bowl

December 10, 2019
By Sebastian Dawson – AMC

Warm day with light precipitation before freezing temperatures overnight. Two skiers headed up Left Gully.

Avalanche Activity, Tuckerman, 12/8

December 8, 2019
By Sarah Goodnow – AMC- Hermit Lake Caretaker

New avalanche debris from Center Bowl, Lip, and Sluice were present in the bowl this morning (Sunday 12/8), with crown lines visible in the Lip and Sluice. A period of 50-70 mph WNW winds recorded by the summit last night built soft (4F) wind slab on . . .

Tuckerman 12/8

December 8, 2019
By Joseph Soccio – USFS

Clear skies provided good visibility. West winds increased in velocity as the day progressed. Wind loading was evident as the fresh snow from yesterday (12/7) was available for transport. Some small sloughs were seen in the lookers right of the bowl. . . .

Active wind loading in Tux around 12 noon Sunday Dec 8

December 8, 2019
By Joanne Archambault

Active wind loading in center and left side of bowl when we arrived on floor of Ravine around 11:30 am led us to favor the right side. Picture taken from the “Sluice bowl” area (elevation 4933 ft). Lots of people skiing here and in Right Gully; had . . .

Tuckerman 11/30

November 30, 2019
By Sarah Goodnow – AMC- Hermit Lake Caretaker

Conditions in Tuckerman today (Saturday) consisted of variable wind slab with small areas of old surface in the mix. The wind slab in question resulted from the ~15 cm of snow that fell on Wednesday and Thursday with wind loading that continued . . .

tux bowl from connection cache

November 26, 2019
By sebastian dawson – AMC

heavy and wet ground conditions, blue skies

Tuckerman 11/21

November 21, 2019
By Sarah Goodnow – AMC- Hermit Lake Caretaker

The week thus far has brought near freezing temperatures, a little rain, and a little snow to the ravines. The pictures attached were taken today and Monday but you should expect the landscape to be quite different this weekend as there is a fair . . .

Early Season Southern Presidentials

November 16, 2019
By Jeff Fongemie – MWAC

Just enough snow to make for easy hiking. Small knee deep drifts in sheltered locations.

Veterans Day Report

November 11, 2019
By Mark Renson – MWVSP

Boring. Nothing. Need more snow and ice for crampons on LH Summer Route – dicey ascent with microspikes. See my Facebook spray for more pics. Very few Massholes observations outside of me.


Snowpack observations are one part of the complex puzzle which is your decision to enter avalanche terrain. Some observations may include stability tests. It’s important to understand that the results of a stability tests are seldom conclusive anywhere, but particularly in snow climates and terrain like ours where the primary driver of instabilities is wind drifted snow. Many stability tests exist and each works best with specific avalanche problem types. Stability test results should never be used alone as an indication that a slope or conditions are safe particularly when more obvious red flags are present. Please use this page as part of your information gathering process, but don’t make decisions based on a single piece of information. A good article that summarizes some of the issues associated with snow and avalanche observations can be found here.

The Mount Washington Avalanche Center cannot verify the quality or accuracy of any observations that come from the general public.


See an avalanche or evidence of previous avalanche activity?  Near-miss? Snowpack observations?

Your observations are valuable to an accurate forecast! We welcome observations from everyone. You don’t need to be an avalanche professional to submit helpful observations, just be as detailed and accurate as you can.