Warming on south aspects at mid elevation

February 23, 2020
By Jeff Fongemie – MWAC

Bright sunshine, low wind. 35F tucked in sunny corner of the ravine. South facing aspects receiving the most direct sun warmed (moist snow) to about 10 cm down from surface. North facing aspects remained cold, dry.

2/22 west side view from Ammonoosuc

February 22, 2020
By Jake Tabor

Snow on the west side around ammonoosuc ravine was variable with lots of ice and rocks. West facing terrain was generally scoured except for pockets more sheltered from winds such as Monroe Brooke. Sasturgi all around the Lakes of the Clouds area.

Prior avalanche activity and firm wind slab

February 21, 2020
By Helon Hoffer – MWAC

We observed the following signs of natural avalanche activity, likely occurring this past Tuesday into Wednesday:
+Crown high in Dodge’s Drop with debris that ran into the dogleg of Hillman’s Highway
+Crown high in Left Gully
+Crown to looker’s right . . .

Macro Snowpack Obs Mt Washington West Side

February 21, 2020
By Jeff Fongemie – MWAC

Overall, not much of a developed snowpack in Burt or Ammonoosuc Ravines, limited to small pockets of snow and lots of rocks. Did not see into Monroe Brook. From a distance, the small snowfields looked wind textured.

Crawford’s Notch from a Distance

February 21, 2020
By Jeff Fongemie – MWAC

Recent snow last Tuesday-Wednesday has increased the depth of the snowpack in Crawford Notch, most notable on Cinema Gully on Mt Willard, Central Slab and Landslide on Mt Webster.

Cinema Gully, SouthEast Face Mt Willard

February 20, 2020
By Matt Shove – Ragged Mountain Guides

Debris from previous storm and wind cycle visible in the approach slope.
Repeatable, moderate hand shears with results 60cm down on pitch one in the pocket before the ice bulge. The shears are failing on an ice crust at approx 60cm. Otherwise there . . .

Tuckerman Snowpack and Avalanche Obs

February 20, 2020
By Helon Hoffer – MWAC

I observed significant avalanche debris on the floor of Tuckerman. This probably occurred Tuesday/Wednesday. The only visible crown was high in Left Gully. Considering the amount of debris, I would guess the Headwall avalanched during the cycle and . . .

Lower Tuckerman Ravine

February 19, 2020
By Nickolas Clayton

The recent snow overnight did not allow for us to continue into the bowl as we saw the snow cracking on the trail up.

GOS Wind buff cracked under a ski edge

February 19, 2020
By Robert Means

General comment: Swirling winds, snowing and wind blown snow. I had thought to dig a pit partway up #1. When my edge cracked a wind-buffed section just 40 yards from the upper cache, I turned tail immediately. On the way in, just above 3800′, on a . . .

Avalanche cycle on north, northeast aspects

February 19, 2020
By Frank Carus – MWAC

Wind spread avalanche cycle during wind loading event Tuesday night or very early Wednesday. The Bowl and Headwall area likely avalanched early and reloaded since it’s debris looked the oldest.
Also see https://www.instagram.com/p/B81_0kfFZdY/ for . . .

ABOUT THESE OBSERVATIONS

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.

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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.