Hurricane Isaac dumps heavy rains, battering northern U.S. Gulf Coast with strong winds as it slowly crawls ashore and heads toward New Orleans.
Hurricane Isaac Makes Landfall

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A man sleeps outside a boarded up building on Canal St., prior to Tropical Storm Isaac in New Orleans, Aug. 28, 2012.

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Stacey Davis, left, and his brother board up windows on their home before Tropical Storm Isaac hits Aug. 28, 2012, in New Orleans.

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A boy plays in the surf in waves ahead of Tropical Storm Isaac in Orange Beach, Ala., Aug. 27, 2012.