Idalia updates: Damaging tornadoes, severe flooding from Florida to Carolinas

Florida Gov. Ron DeSantis said Thursday that he'll tour some of the hard-hit areas, like Cedar Key, to assess the damage.

Idalia has ripped down buildings, toppled trees and submerged entire neighborhoods.

DeSantis said there's a massive amount of debris left behind because Idalia struck a region with a lot of trees.

FEMA Administrator Deanne Criswell, who joined DeSantis at his briefing in Florida, added, "We are committed to bringing the entire federal family in here to support."

President Joe Biden spoke with DeSantis Thursday morning and signed a Major Disaster Declaration, according to the White House.

While at least two fatalities have been reported in Florida, Kevin Guthrie, director of Florida's Division of Emergency Management, said there are no confirmed deaths.

Over 140,000 customers in Florida are still without power and another 105,000 customers are waking up in the dark in Georgia in the wake of Hurricane Idalia.

Taylor County in Florida's Big Bend region, which includes the hard-hit city of Perry, is completely without power, Gov. Ron DeSantis said.

Idalia, now a tropical storm, churned over eastern North Carolina on Thursday morning, unleashing gusty winds and heavy rainfall as far as southern Virginia.

Meanwhile, a storm surge and coastal flooding was hitting North Carolina and its Outer Banks barrier islands.

A tropical storm warning remains in effect for the Carolinas, mostly for North Carolina.

Idalia is forecast to move out to sea by Thursday afternoon, taking the winds and rain with it.

The storm could bring gusty winds and heavy rain to Bermuda by late Sunday into early Monday.

-ABC News' Max Golembo

There were at least three reported tornadoes on Wednesday after Idalia made landfall as a Category 3 hurricane in Florida and moved northeast across Georgia and the Carolinas as a tropical storm.

Two tornadoes were reported in South Carolina and one in Florida, with damage to structures and vehicles.

Wind gusts got up to 86 miles per hour in Mayo, Florida; 67 mph in Valdosta, Georgia; and 52 mph in Savannah, Georgia, according to the National Weather Service.

Meanwhile, as Idalia moved further inland, it produced some of the worst storm surge on record that flooded coastal cities from Florida to the Carolinas.

The highest storm surge -- up to 6.83 feet -- was recorded in Cedar Key, Florida. Tampa Bay, Florida, got hit with 4 to 5 feet, the highest storm surge since a 1921 hurricane. Charleston, South Carolina, saw 3.47 feet, the fifth highest storm surge on record, which flooded streets and neighborhoods, according to the National Weather Service.

A flash flood emergency was reported in Valdosta, Georgia.

The highest rainfall total -- 9.97 inches -- was recorded in Statesboro, Georgia. Hampton, South Carolina, got 9.61 inches of rain while Citrus Springs, Florida, had 9.48 inches. Rain was still coming down in North Carolina on Thursday morning and the state has recorded 6 to 10 inches so far, according to the National Weather Service.

-ABC News' Max Golembo