Huntington Ravine photos

January 13, 2019
By Ryan Matz – MWAC Forecaster

Notably less storm snow deposited/remaining in Huntington Ravine. Avalanche path development resembles pre-storm conditions.

Avalanche in Center Bowl, Tuckerman Ravine

January 12, 2019
By Ryan Matz – MWAC Forecaster

Naturally triggered, suspected to have occurred yesterday or last night (1/11-1/12). Visually observed from Hermit Lake. Crown width approximately 300’, height approximately 12”.

Avalanche in Gulf of Slides

January 12, 2019
By Rob

looks like a recent slide, maybe a day or two old.

Observation of snowpack on South Facing slope around 3500′

January 12, 2019
By Mason Irish

Pit Location was around 3500′. Results were ECT N. The layer of concern was a thin layer of small facets (4finger-Fist hardness) resting on the Christmas freezing rain crust. The snow pack, about 24″ deep, above this facet layer was right side up . . .

Natural Avalanche, Hillman’s Highway, Tuckerman Ravine

January 11, 2019
By Jeff Fongemie – Mount Washington Avalanche Center

Naturally triggered avalanche occurring likely Wednesday evening, January 9 or possibly January 10. Looking up the gully, start zone obscured by blowing snow. Debris heavily wind affected. It appears that the avalanche ran from above the Christmas . . .

Avalanches in and around Tuckerman Ravine

January 11, 2019
By Frank C

Signs of widespread avalanche activity some of which was large, following snow and wind during the past few days. Observed wind scoured debris in the following locations:
Lobster Claw – D2
Floor (from Headwall) D4
Left Gully D2
Duchess D2
Empress . . .

Wildcat year slope

January 9, 2019
By Ben – Acadia Mountain Guides

4000” due east aspect, test slope next to the patrol shack. I ski cut the slope with shooting cracks and a big slump. The stanch wall broke and developed. But the slope stop before it enter gliding motion.

Huntington Ravine Photos

January 7, 2019
By Helon Hoffer – Mount Washington Avalanche Center

Surface of the snowpack consists of old melt-freeze crusts, older wind slab and wind slab that formed yesterday from 5″ of snow combined with high wind.

Natural avalanche, Center Bowl, Tuckerman Ravine

January 7, 2019
By Ryan Matz – MWAC Forecaster

Naturally triggered avalanche, suspected occurrence late Sunday 1/6 or early today. Crown partially refilled by wind loaded snow, debris heavily wind affected. As seen in the picture, a line just below the ice and above the prominent crown line may . . .

Gulf of Slides, widespread firm wind slab

January 7, 2019
By Ryan Matz – MWAC Forecaster

Varying hardness (1F-4F) new wind slab, relatively smooth and consistent except in upper portions of terrain where scouring occurred. With incoming snow and wind, it’s worth noting this widespread smooth and firm nature as a potential avalanche bed . . .


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.