By Steve Holland WASHINGTON (Reuters) -The U.S. federal emergency agency warned Florida residents not to be complacent about Hurricane Ian, while President Joe Biden has called mayors in three Florida cities in the storm’s path to offer support. It has been over 100 years since Tampa, where Ian is forecast to make landfall, has taken a direct hit from a hurricane. Ian slammed into Cuba on Tuesday, forcing evacuations, cutting power to nearly 1 million people and tearing roofs off homes. Federal Emergency Management Agency administrator Deanne Criswell said the agency is especially concerned ab…