winter intern for the Mount Washington Observatory (MWOBS) and MWAC. With a background in snow hydrology, Mac Donald’s goal is to look at snow from a safety standpoint and to determine how much water a storm is carrying, and what that means for the amount of snow that may fall in the days ahead. “Mount Washington has some really specific conditions that don’t fit into that framework all the time,” says MacDonald. “A lot of work is just trying to figure out if there is a better system for determining how much snow we have.” It may snow 10 inches in the bowl, but when the wind blows into the ravine, now there’s snow piling, creating a heavy layer
Before attempting to ski down Tuckerman Ravine, Fongemie suggests starting small. Hike partway up a smaller slope with a safe runout and see how it feels. If it feels okay, go a little higher the next time. “People need to be quite solid skiers, and they also need to know their limitations,” he adds.
on a potentially weak snowpack, which can trigger an avalanche. Performing these field observations in advance helps the crew determine the risk for the day.
SPRING RISKS & RESCUES Although the risk of avalanches decreases in spring, the hazards from warmer temperatures, more intense sunlight, and snow-to-rain cycles create more dangers than in winter. During spring, there are hundreds (sometimes thousands) of people heading up to the ravine, who are often less experienced than winter adventurers. According to Jeff Fongemie, director of the MWAC, the area is treated like a ski resort. “It feels like people take more risks here than if they are in a backcountry setting alone,” he says. People follow their peers up the left side of the headwall and don’t realize what they’ve gotten them selves into until they’re standing on top of the ravine itself. Fongemie says that when it comes to the causes of fatalities in the ravine, 20 percent are from avalanches, 20 percent are from hypothermia or exposure, and
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