Emergency responders are rescuing people from flooded homes and cars in Baldwin County and Escambia County, Florida.
Mitchell Sims, Baldwin County's emergency management director, said Wednesday morning that rescue efforts have been virtually nonstop since just before midnight. No deaths or other serious injuries were reported.
Gulf Shores received nearly 21 inches of rain in the past day and officials say the scene resembles the aftermath of a hurricane.
The intracoastal waterway rose so high it reached the canal road linking Gulf Shores with neighboring Orange Beach, and floodwaters filled parking lots near the beach.
In the inland town Silverhill, the National Weather Service projected the Fish River to crest above its all-time high set during Hurricane Danny in 1997.
Florida Governor Rick Scott says officials have received about 300 requests for evacuations from flooded areas in Pensacola.
Scott said Wednesday that some 201 rescues have been completed and the Florida National Guard is sending 24 high-water vehicles to the area to assist with others.
Earlier Wednesday he declared 26 Florida Panhandle and north Florida counties that have been hard-hit by torrential rain a state of emergency.
Heavy rains started falling over the Florida Panhandle on Tuesday, drenching parts of Pensacola with between 15 and 20 inches of rain.
Scott says about 32,000 Panhandle residents were initially without power, but that number was down to 28,000 by mid-morning.