Small Crevasse, Hillman’s

March 20, 2020
By Nathan Delmar

At 4,800 feet, a small but apparent crevasse could be seen at the fork in the gulley. Roughly 12 feet long, the crevasse was obviously undermined and a significant amount of water could be heard flowing under the snow. About four feet above the . . .

Hard crust on top of loose snow

March 18, 2020
By John – 1992

Hard crust on top of loose snow, couldnt finished digging for an extended column without snow failing.

Small Crevasse Huntington Ravine

March 16, 2020
By Matt Shove – Ragged Mountain Guides

Crevasse running in the center fan below the Huntington Ravine Trail past the Harvard Bulge to The Diagonal Gully entrance. Currently very narrow. Clearly visible from Pinnacle Gully.
Approx 4400’ elevation.
Otherwise firm and breakable crust . . .

Long sliding fall

March 15, 2020
By Ryan Mcguire – Redline Guiding / Avsar

Beautiful bluebird day the wind had let down as the went on. I was guiding and we had just got back down to alpine garden after summit of Mt Washington when heard a scream from the party above us and 2 took a long sliding fall from just below split . . .

Bulletproof conditions in Tucks

March 14, 2020
By Matt Oakes – No affiliation

Level of experience: 5 years in moderate to very difficult east coast terrain.
Equipment: splitboard crampons, crampons, ice axe, beacon, probe, shovel, radios, garmin in-reach, med-kit.
Courses: AAA Avy 1, AIARE rescue, Ski Mountaineer Course, . . .

20200227 Escape Hatch Avalanche viewed from Damnation Buttress

March 9, 2020
By Matt Shove – Ragged Mountain Guides

Photo submitted to view the extent of debris and path from the 20200227 D3 avalanche. We descend the Escape Hatch and witnessed 8″ diameter spruce krumholtz broken clean. Impressive.
Photo taken Monday March 9, 2020.

Pits near Right Gulley, Tuckerman Ravine

March 8, 2020
By Tony Jewell – Northeast Mountaineering

Today (3/8) on our AIARE Level 1 course we dug pits on the climbers left side of the Right Gulley in Tuckerman Ravine at the 4,650 foot level. We found 30cm pencil hard snow on top of the crust layer. We had one CT 26 Q2/RP at this interface and had . . .

Lower Raymond Cataract Obs

March 8, 2020
By Nick Aiello-Popeo – Synnott Mountain Guides

There were few signs of instability, crowds, or wind today in the lower reaches of Raymond Cataract. Large ice blocks had fallen thirty feet and impacted the 33-degree slope without triggering avalanches. The ice blocks appeared to have fallen days . . .

Second pit – below hillman’s

March 8, 2020
By John Sidik – Synnott Mountain Guides

Similar location to earlier this week. Results show propagation on a 1cm later of facets between two ice crusts. The upper ice crust is becoming less evident and easier to break.
ECTP 22 down 50cm
Confirmed with a second ECT (same pit) showing the . . .

Pits – Base of Hillman

March 5, 2020
By John Sidik – Synnott Mountain Guides

We preformed a number of compression tests, one extended column test and one propagation saw test on a small east facing hill, sheltered by trees, near the avalanche devastation below Hillman’s Highway. While the nature of the terrain may not . . .


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.