Islamic States mocked images of flooding in Houston, wrecked buildings in the Caribbean, and lines of traffic fleeing Florida.
One warped supporter described Hurricane Harvey as "another September 11th for America" while another
posted an infographic detailing the enormous financial toll.
ISIS said the storm was a "soldier of Allah" and hoped for "wind like nothing they have ever seen".
Rita Katz, Director of SITE Intelligence Group, said one account even changed its name to 'Hurricane Irma', equating the damage caused with destruction in Mosul.
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