By Monday afternoon, more than 800,000 Georgia Power and EMC customers mostly in coastal and south Georgia were without power.
The vast majority were in Florida.
The National Hurricane Center's 11 p.m. update called for Irma to move north through Florida and weaken in Georgia, though parts of SC could see tropical storm-force winds.
State officials said a fifth shelter is opening Sunday in Greensboro to accommodate people and their pets coming to North Carolina and finding hotel rooms full.
The storms passing also left many without electricity.
He said the Navy dispatched the USS Iwo Jima, USS New York and the aircraft carrier Abraham Lincoln to help with search and rescue and other relief efforts.
Duke Energy reports about 1,400 customers without service in North Carolina.
He said boats were cast ashore, water, sewers and electricity were knocked out, and "I don't think I saw one trailer park where nearly everything wasn't overturned".
USA to face one of the most risky hurricanes ever
Houston is United's second largest hub after Chicago. "No one is taking those long trips and demand falls off". As with Harvey, airlines are partnering with relief organizations to help people impacted by Irma .
"Honestly, I can't tell you where safe is", Jones told reporters at a news conference.
The storm could bring up to 20 inches in southeast Georgia, according to the National Weather Service, which warned that significant river flooding was possible Monday and Tuesday.
In addition to a threat of at least tropical-storm-force winds, some locations in Georgia and SC may see worse coastal flooding from Irma than they did with last October's Hurricane Matthew, despite Matthew's center tracking much closer than Irma.
Shawn Gillen, Tybee Island's city manager, said waters appeared to be receding quickly but the flooding was extensive on the island of more than 3,000 residents. Storm surges on the coast and inland flooding are expected. Ms Brock said no injuries had been reported.
Walls said areas could have sustained winds of 40 miles per hour and gusts of up to 60 miles per hour.
At 11 a.m., the center of Irma was about 70 miles east of Tallahassee. Monday night, the storm had weakened to a tropical depression near Columbus, Georgia.
North Carolina is playing host to evacuees trying to escape the path of Hurricane Irma through Florida and Georgia.
Those periods of intense wind and rain will continue throughout the evening and will start to taper off by early Tuesday morning.
US Virgin Islands struggling to recover from Hurricane Irma
Conger, his wife and a group of his friends were vacationing in the British Virgin Islands as Irma grew in strength. The French president, Emmanuel Macron , said he would visit the French overseas territory of St Martin on Tuesday.
Damage in Marco Island.
Irma made landfall for a second time on Sunday at Marco Island.
While power disruption is behind most of the traffic light outages, in some cases the signal heads have been destroyed by wind and will need to be replaced. The total would include people-and-pet shelters. Hurricane force winds could be felt after that if the states track close enough to Irma's center. At least 35 people were killed in the Caribbean.
A flash-flood watch has been issued ahead of Irma's impacts across all of north Georgia.
The Blue Ridge Parkway is closed due to high winds in the western part of the state.
Richland County, where Columbia is located, declared an emergency and closed county offices Monday, a move that will lead to the closing of all state offices in the capital city, including the University of SC.
Cumberland, Hoke, Moore and Robeson counties are included in a Wind Advisory that goes into effect at noon on Monday.
AAA advises avoiding driving during storms or high winds and driving through standing water and flooded roads.
N. Korea denounces new United Nations sanctions
An America-led resolution toughening sanctions on North Korea was adopted unanimously by the UN Security Council Monday . DPRK stands for the North's formal name, the Democratic People's Republic of Korea.
"While the heavy rainfall and high winds have moved out of the southern part of the state, middle and north Georgia are now experiencing the brunt of the storm", said Georgia DOT's Chief Engineer Meg Pirkle. "Just because that it might be at tropical storm strength doesn't mean this storm isn't going to be very risky".
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