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After only spotty rainfall during the first part of this weekend in the Pittsburgh area, the risk of severe thunderstorms and flash flooding will ramp up quickly by Sunday. more >
Severe Storms, Flooding to Threaten DC, NYC, Pittsburgh
Showers May Dampen World Cup Championship Match
Geophysicists Concerned as Oklahoma's Earthquake Total Surpasses California's
Yellowstone National Park's Firehole Lake Drive was closed Thursday, July 10, as portions of the roadway's asphalt melted amid the summer's recent heat wave in the Northwest.
Vortices of air constantly surround us, invisible to the naked eye until something physical gives them shape. Take a look at some of nature's most awe-inspiring vortices.