The Already-Flooded East Coast Faces a Massive Storm Surge from Hurricane Joaquin

Hurricane Joaquin strengthened to a Category 4 this afternoon on its way through the Bahamas. It’s now a large, powerful storm with sustained winds of 130 to 156 mph. The biggest threat, however, is Joaquin’s storm surge, which is raising sea levels five to ten feet in the Bahamas and could do the same — or worse — when it reaches the U.S. East Coast early next week.

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