The first thing James Fountain looks at in a hurricane-ravaged building is the ceiling fans. If the blades are pointing toward the floor, it’s a good sign the storm surge inside the building was high enough to touch the ceiling. That’s valuable information for Fountain, a hydrographer with the U.S. Geological Survey tasked with figuring out where Hurricane Ian’s storm surge reached — and how high it rose. Inside the Nauti Parrot Dock Bar in Fort Myers Beach, the fan blades were still firmly in proper position. But Fountain, 40, quickly spotted a watery haze across one of the TV screens mounted…