The south of the United States was hit by a Category 2 Hurricane overnight on Friday, leaving four dead.

Thousands were living without electricity on Saturday, while hazardous conditions including storm surges, flash flooding, damaging winds and a risk of tornadoes across parts of ⁠the US Southeast remained, the National Hurricane Center said.

Here is what we know so far.

How strong was Isaias?

Isaias peaked as a Category 3 hurricane but came ashore as a Category 2 on Friday near Destin, Florida, a popular Gulf Coast vacation spot filled with high-rises and quirky tourist shops.

The storm weakened overnight and was downgraded to a post-tropical cyclone with maximum sustained winds of 35mph, but remains dangerous.

Isaias peeled off hotel and condominium rooftops and facades along the Florida Panhandle before charging north Saturday.

Nearly 700,000 customers were without power by midday in four states. Forecasters warned that flooding could stretch into the southern Appalachians.

“The risk of flooding is still high,” Florida Gov. Ron DeSantis said on Saturday. “Sometimes these things happen a day or two days after the storm goes through. So the flooding story is not over.”

Along Alabama’s Gulf Coast, authorities in Mobile reported downed trees and power lines and numerous closed roads.

Maranie Adams, who rode out the storm with her husband, two adult sons and their chickens in Gulf Shores, Alabama, said the winds rocked their home, but it was nothing like Hurricane Sally, which left 2 feet (0.6 meters) of water under their elevated house.

“We have a few limbs down, some leaves everywhere, but we’re very spared. So, everything’s open on the island today. Everything’s good,” Adams said. “I feel very much more relieved today.”

How many casualties have there been?

One woman was killed when a tree fell on to her house in Florida, while a man was confirmed dead from carbon monoxide poisoning alongside four who have been taken to hospital.

Sheriff Chip W Simmon in Escambia County, Florida. warned people not to use generators indoors.

Alabama Governor Kay Ivey has said two have been killed in the state, saying on X: “Unfortunately, we have also learned that two Alabamians have lost their lives.”

One person died when a tree fell on a house in Birmingham, said Cory Moon, the city’s fire chief. One other person was rescued from the house and treated at the scene, he said. 

What is the forecast for the area now?

Isaias was the first hurricane to hit the eastern U.S. since 2024. The National Hurricane Center has issued warnings that “flash, urban, and river flooding is possible across the region”., and Alabama’s governor also said there may be “possible spinoff tornadoes”.

The National Hurricane Center said flood watches remain for parts of the southeastern U.S. and southern Appalachians. 

Parts of Georgia and the Carolinas could see up to 10 inches (25 centimeters) of rain though totals are likely to be 3 to 6 inches (7 to 15 centimeters). The storm was expected to move into the Tennessee Valley and then the mid-Atlantic on Sunday.

Officials at the Charlotte Motor Speedway announced that Saturday’s Blue Cross NC 300 was postponed until Sunday night due to a forecast of inclement weather.

Meanwhile, in the Pacific, Simon strengthened into a Category 4 hurricane as it approached Mexico’s coast. Simon is expected to bring heavy rainfall to parts of southwestern Mexico with life-threatening flooding and mudslides.

Tropical Storm Rachel was also expected to bring heavy winds and rain to northern Mexico and Southern California over the weekend.