Avalanches in Huntington Ravine

By Helon Hoffer | Mount Washington Avalanche Center

Date of Observation: February 9, 2020  11:00 AM
Location of Observation: Huntington Ravine

Main photo: Standing in the debris of Odell looking up into Odell
Second Photo: Standing under Odell looking at the Fan with debris having come out of Pinnacle
Third Photo: Looking at South Gully from the floor of the ravine

It appears an avalanche cycle occurred overnight Friday and left debris under Pinnacle, Odell, and South Gully. These were all small debris piles (D1 in size). Debris under Odell sat on top of the MFcr that likely formed Friday. The debris also contained chunks of Friday’s MFcr. It appears the crown in Odell is just under the ice and was an average of 4″ thick, running 300 vertical feet.


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.