Initial estimates indicate 25% of the houses in the Florida Keys have been destroyed, and 65% have major damage, said Brock Long, the Federal Emergency Management Agency’s administrator.

“Basically, every house in the Keys was impacted some way,” Long said Tuesday. He said the numbers are early estimates and could change.

Irma left a trail of devastation throughout the Southeast, killing at least five people in the US, flooding major cities including Jacksonville, Florida, and Charleston, South Carolina, and leaving millions without power.

On Monday night, Irma was downgraded from a tropical storm to a tropical depression as the storm lumbered 95 miles south-southwest of Atlanta, Georgia. Irma is expected to turn toward Alabama and then into western Tennessee.

Even with Irma’s weakening, the tropical depression is still expected to bring heavy rainfall across a widespread area, as it flooded parts of coastal Georgia and South Carolina, including Savannah and Charleston, on Monday. The Weather Prediction Center warned Tuesday of possible flash flooding and heavy rainfall in parts of North and South Carolina.

Irma, which stretched 650 miles from east to west, affected at least nine states, turning streets into rivers, ripping down power lines, uprooting trees and cutting off coastal communities.

Jacksonville grappled with a record storm surge on Monday, prompting the Coast Guard to deploy boats to rescue residents.

Meanwhile, evacuees in Florida were anxious to return and see how their homes weathered the storm. But officials urged patience.

“Check with local officials before returning home to make sure you can safely do so,” said Gov. Rick Scott on Monday. “Don’t think just because this thing passed, you can run home. We’ve got downed power lines all across the state. We’ve got roads that are impassible still across the state. We’ve got debris all over the state.”

He said that standing water remains an issue over the entire peninsula.

The latest developments:

— As of Monday night, the tropical depression was centered about 95 miles south of Atlanta, with maximum sustained winds of 35 mph, the National Hurricane Center said.

— Five storm-related deaths have been reported.

Georgia: Three deaths reported. A 62-year-old man who was on his roof was killed in Worth County, which experienced wind gusts of 69 mph, according to Kannetha Clem, a spokeswoman for the Worth County Sheriff’s Office. Another man was killed in Sandy Springs, an Atlanta suburb, when a tree fell and “literally cut the home in half,” said Sharon Kraun, the city’s communications director. A woman was killed when a downed tree struck her vehicle in Cumming, north of Atlanta, as the car at in a private driveway, the Forsyth County Sheriff’s Office.
Florida: One driver died in a car accident on State Road 417, said Orange County Fire Rescue Chief Otto Drozd.
South Carolina: A 57-year-old South Carolina man was fatally hit by a falling tree limb during the storm, Abbeville County Coroner Ronnie Ashley told CNN.

— Massive power outages remain throughout the Southeast. These figures are as of Tuesday 5 a.m.:

Alabama: 20,000 customers were without power, according to Alabama Power.
Florida: 6.2 million customers, according to Floridadisaster.org. This represents over 59% of all power company accounts in the state, the Florida Division of Emergency Management said.
Georgia: More than 1.3 million customers, according to Georgia Power and Georgia EMC.
North Carolina: More than 62,000 customers, according to Duke Energy
South Carolina: 161,000 customers, according to Duke Energy and SCE&G.

— All storm surge warnings and tropical storm warnings were discontinued Monday night.

The places where Irma made landfall

Irma triggered evacuation orders for 5.6 million people before it made two landfalls in the Florida Sunday.

The full extent of the damage is still unknown. Officials said they were working to clear roads and bridges.

“Stay off the roads, stay off the streets, let us complete our assessment, clear the roads of water, power lines, trees and then you can get out there and determine what happened to your individual property or your neighborhood,” Fort Lauderdale Mayor Jack Seiler told evacuees.

Officials were struggling Monday to reach areas of the Florida Keys, as some of the islands were difficult to access.

Although access to the Keys is closed to the public, Monroe County will reopen access points to residents and business owners in Key Largo, Tavernier and Islamorada early Tuesday.

Thousands people who rode out the storm in the Keys remain there without water, power and communications.

Irma made landfall on the Florida Keys as a Category 4 hurricane Sunday, and again over Florida’s Marco Island as a Category 3, leaving the island without power and water, authorities said.

But in signs of gradual restoration of services, many of Florida’s airports are scheduled to re-open to limited operations on Tuesday. Florida Hospital, a health provider in the state, announced its plans to reopen many of its facilities that were impacted by Irma on Tuesday or Wednesday.

Jacksonville’s ‘record and historical flooding’

In the aftermath of Irma, the biggest threat this week will be river flooding in the northern part of the state, Gov. Scott warned.

Although rainfall stopped in Jacksonville Monday afternoon, the water began rising and washing into downtown.

The governor said on Monday that Jacksonville experienced 3 to 5 feet of surge, plus one foot of rainfall, which is causing “record and historical flooding along St. Johns River.”

The Jacksonville Sheriff’s Office placed a curfew on its beaches Monday night into Tuesday morning.

“Jacksonville is suffering what has been called … some of the worst flooding it has seen in 100 years,” National Security adviser Tom Bossert said Monday.

Irma turned Jacksonville’s Memorial Park into an unrecognizable lake.

Charleston grapples with flooding

In Charleston, waters in the harbor peaked at nearly 10 feet high, the South Carolina city’s third-highest reading, topping Hurricane Matthew in 2016, said CNN meteorologist Taylor Ward.

Irma flooded portions of the Battery, the downtown Charleston neighborhood, prompting police to ask residents to avoid the area.

“It’s been an extremely stressful day between all of the wind, tornado warnings, power outages and flooding downtown,” said Charleston resident Melissa Stehr, who waded through knee-deep water Monday.

Irma’s deadly trail

Before slamming into the United States, Irma hit Cuba late Friday as a Category 5 hurricane. On Monday, Cuban state TV announced 10 hurricane related deaths — meaning Irma killed a total of 36 people in the Caribbean before heading to the US.

This is the first year on record that the continental United States has had two Category 4 hurricane landfalls in the same year.

Last month, Hurricane Harvey devastated much of coastal Texas and killed more than 70 people.