PHOTOS: Hurricane Idalia slams into Florida

CEDAR KEY, Fla. (AP) — Hurricane Idalia made landfall Wednesday in Florida as a Category 3 storm and unleashed devastation along a wide stretch of the Gulf Coast, submerging homes and vehicles, turning streets into rivers, unmooring small boats and downing power lines in an area that has never before received such a pummeling.

More than 263,000 customers were without electricity as rushing water covered streets near the coast. As the eye moved inland, destructive winds shredded signs, sent sheet metal flying and snapped tall trees. Downed power lines closed northbound Interstate 75 just south of Valdosta, Georgia.

“We have multiple trees down, debris in the roads, do not come,” posted the fire and rescue department in Cedar Key, where a tide gauge measured the storm surge at 6.8 feet (2 meters), submerging most of hte downtown. “We have propane tanks blowing up all over the island.”

Idalia came ashore in the lightly populated Big Bend region, where the Florida Panhandle curves into the peninsula. It made landfall near Keaton Beach at 7:45 a.m. as a high-end Category 3 hurricane with maximum sustained winds near 125 mph (205 kph).

It remained a hurricane as it crossed into Georgia, with top winds of 90 mph (150 mph) at 11 a.m., after drenching Florida mostly to the east of Tallahassee. Forecasters said it would punish the Carolinas overnight as a tropical storm. Some models predicted Idalia could circle southward toward land again after that, but the National Hurricane Center forecast it to move deeper into the Atlantic this weekend.

Astounded by the flooding that turned Tampa's Bayshore Boulevard into a river, Bill Hall watched a paddleboarder ride along the major thoroughfare.

“This is actually unbelievable,” Hall said. “I haven’t seen anything like this in years.”

In Tallahassee, Florida's capital city, the power went out well before the center of the storm arrived.

Tallahassee Mayor John Dailey urged everyone to shelter in place — it was too late to risk going outside. Florida residents living in vulnerable coastal areas had been ordered to pack up and leave as Idalia gained strength in the warm waters of the Gulf of Mexico.

“Don’t put your life at risk by doing anything dumb at this point,” Gov. Ron DeSantis said at a news conference Wednesday morning. “This thing’s powerful. If you’re inside, just hunker down until it gets past you.”