Mt Adams/kings

March 26, 2020
By Benjamin Allen – Acadia Mountian Guides

Air temps were 5c at 13:00 4500’ on an east aspect. The snow field on the east side of mt Adams was hot pow it seemed like they where going through the first round of heating. It was well bond even with the high air temp and sun. Looking in to . . .

Multiple Skier-Triggered Wet Loose Slides in Gulf of Slides

March 26, 2020
By Austin Hart

Two skier-triggered wet loose avalanches occurred between 11:30 and 13:30 Thursday, March 26, 2020 on the Main Gully of Gulf of Slides. Neither caught or carried skiers. One ran about 500ft on an E facing path lookers left of the primary slide path. . . .

Tucks Observations 3/25

March 25, 2020
By Mark Toronto – Ski Mountaineer & Instructor

Considerable Avalanche Danger due to a foot of new snow.
.Observed many tracks below large run-out zones in The Bowl. (No Go for Boot Sour and The Bowl @ Considerable)
*Warming temps and Solar Gain have left us with a breakable crust on certain . . .

Avalanches and rollerballs in huntingtons

March 24, 2020
By John

Icy surface with new wet snow and icy crust on top after thawing and refreeze seemed less reactive as the day went on and temperatures dropped

Storm Slabs in Huntington Ravine

March 24, 2020
By Joseph Soccio – MWAC

We went into Huntington Ravine to see how the new snowfall impacted the terrain. We found ankle-deep storm slabs that were reactive to our skin track. We continued to the base of south gully and skied down. Ski cuts triggered small d1 avalanches that . . .

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, . . .


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.