Nation wilts as heat wave spreads eastward

Associated Press
A visitor to the Henry Doorly Zoo in Omaha, Neb., leans against a sculpture of Planet Earth, with the sun reflecting off the center of the American Continent, Tuesday, July 19, 2011. Heat advisories and warnings were in place in 17 states, from Texas to Michigan, as temperatures and humidity combined to make being outside uncomfortable for millions. One National Weather Service forecaster called the heat wave "unrelenting" and said sweaty residents shouldn't expect any relief soon: A so-called "heat dome" over the region isn't moving much. (AP Photo/Nati Harnik)

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Americans withered under yet another day of searing sun Friday as a heat wave spread in earnest into the urban core of the Northeast, while warnings about excessive heat stretched from Kansas to Maine and the Carolinas. (AP)

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