Geomagnetic storms: When should we look up and when should we worry?

The summit sees hurricane-force wind gusts more than 110 days of the year on average. The most powerful wind gust ever recorded by the Mount Washington Observatory was measured at 231 mph on April 21, ...

Meteorologists on America’s windiest mountain recently experienced historically violent gusts. Here’s what it looked like.

The Mount Washington Observatory said the peak wind gust was 138 mph. Video from the observatory showed how strong the winds ...

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Mount Washington, known for its harsh and erratic weather, saw its wind gusts top out at 161 mph on Monday, the observatory reported. Wind speeds are relative, however: The mountain still holds ...

Large and destructive avalanches are "very likely" on Mount Washington and New ... the observatory says Arctic air could make the actual temperature as cold as 30 degrees below zero by early ...