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.

Tuckerman Ravine from Hermit Lake

November 9, 2019
By Sebastian Dawson – AMC

It’s starting to look like winter at Tuckerman Ravine. There is about 4″ of super light, fluffy snow on the trail with running water in the ravine headwall. Low wind and good visibility brought a decent number of visitors today, and low temps enabled . . .

Avalanche ,Tuckerman Ravine

June 10, 2019
By Jamie Rose

We had just reached the bowl after hiking up to snowboard.The boys set off to get a quick run in while i had set my pack down to eat a snack and take a rest.I sat on a rock while watching them off to my right when I heard a loud thunder crack sound.I . . .

Great Gulf conditions

May 5, 2019
By Ryan DeLena – N/A

The snow is holding on pretty well in the Great Gulf, better than expected. I dropped down Spacewalk, which was still very filled in with perfect corn and minimal sluff. The Airplane Gully runout still goes to floor of the ravine. I booted up Rog’s . . .

Rock Slide from Lion’s Head

May 2, 2019
By Jason Cascone – New York City Fire Dept

On May 2, 2019, at approximately 1322 hours, my hiking partner and I experienced a massive rock slide while hiking with our skis along the Tuckerman Ravine Trail. The rock slide lasted for—we estimate—at least thirty seconds. It was long enough for . . .

Shrinking Snowpack

May 1, 2019
By Jeffrey Fongemie – Mount Washington Avalanche Center

On April 11, the Hermit Lake Snow Plot had 200cm of snow on the ground. On May 1 the total has melted to 138cm. The difference is striking in Tuckerman Ravine.
See larger before & after photos.


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.