This mountain wind is colder than space

Mount Washington stands at a modest 6,288 feet, yet its weather is more violent than the summit of Mount Everest. The mountain's lethality stems from a geographical fluke called the Venturi Effect. It sits at the confluence of major storm tracks from the Ohio River Valley, the Gulf of Mexico, and the Atlantic seaboard. As these air masses hit the Presidential Range, they are funneled through the narrow notch of the peak, compressing the air and forcing it to accelerate to catastrophic speeds.

Wind speeds on the summit have been clocked at 231 miles per hour. At these velocities, the wind can hurl a person off the summit or cause them to lose all physical control. Combined with freezing fog that deposits thick rime ice over everything in seconds, the mountain creates a localized arctic environment in the middle of a temperate zone. The temperature can drop to -40 degrees, and with the wind chill factored in, exposed skin freezes in less than thirty seconds.

The danger is exacerbated by the 'home court advantage' of the mountain's accessibility. Hundreds of hikers attempt the climb in summer gear, unaware that a sunny day at the base can transform into a lethal blizzard at the top in under twenty minutes. This disorientation is the primary killer, turning a simple hike into a battle against a vertical wind tunnel.

Those who reach the top find a world where the buildings must be chained to the ground to keep them from blowing away into the Atlantic night.