For storm watchers, 2012 was a quiet year — almost. The hurricane season had been active but harmless; plenty of big storms formed, but they all stayed out at sea.Then came Sandy.Officially only a Category 2 or 3 hurricane, Sandy was an exceptional case: Sucked into a low-pressure trough moving through the central U.S., Sandy morphed into a one-of-a-kind “superstorm.” Its high winds spread to cover an unprecedented expanse (even as they dropped below hurricane strength) and pushed a tidal surge capable of dealing far more damage than wind alone could do.The warnings were stern. Tropical weather expert Jeff Masters...

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