DeSantis warned that flooding was likely across much of west Florida.

Hurricane Ian strengthened to a Category 3 storm on Tuesday as it made landfall in Cuba.

Ian strengthens to hurricane as it moves toward Florida

Hurricane Ian delays launch of NASA's moon rocket

The four-mile trip to the hangar will begin late Monday night and could take as long as 12 hours. The approaching storm had already delayed this week's planned launch attempt.

Hurricane Ian hits Cuba as Category 3 storm

The hurricane was packing maximum sustained winds of 125 miles (205 kilometers) per hour, the NHC said, making it a Category 3 storm on the Saffir-Simpson scale.

Florida Gov. Ron DeSantis has declared a state of emergency.