Humberto also seems to have skipped the TD step, and Tropical Depression 8 will become Ingrid. Humberto is heading towards an area between Galveston and the Louisiana border and may loop back into the Gulf. It might make landfall as a category 1 hurricane. Ingrid is moving west more slowly than Dean and Felix did.
Update: 9-13-07: Humberto made landfall on the Texas and Louisiana coasts as a category 1 hurricane. It went from a tropical depression (without a number?) to a hurricane in 16 hours, which is a record.