Hurricane Rita strengthened to a dangerous Category 3 storm early yesterday, sparing the Florida Keys but prompting mandatory orders to again evacuate New Orleans as well as the Texas city of Galveston.
Weather forecasters predicted the storm could intensify further with winds of up to 185kph battering Louisiana and Texas by the weekend.
Federal officials told Gulf Coast residents to begin bracing for a blockbuster storm.
"Up and down the coastline, people are now preparing for what is anticipated to be another significant storm," US President George W. Bush said.
Acting Federal Emergency Management Agency Director R. David Paulison told reporters that the agency has aircraft and buses available to evacuate residents of areas the hurricane might hit. Rescue teams and truckloads of ice, water and prepared meals were being sent to Texas and Florida.
"I strongly urge Gulf coast residents to pay attention" to the storm, he said.
Some 130,000 people were evacuated in Cuba, on the southern side of the Florida Straits. The storm churned up roiling waves and soaked the northern coast as it made its way past Havana in the late afternoon.
Electricity, gas and water services were interrupted in neighborhoods around the capital of 2 million and some streets were flooded. Havana's international airport was closed to incoming and outgoing flights.
Stung by criticism of the government's slow initial response to Hurricane Katrina, Bush signed an emergency declaration for Florida and spoke with Texas Governor Rick Perry about planning for the storm's landfall.
Rita created relatively few problems along the Florida Keys, where thousands of relieved residents who evacuated were expected to begin returning in earnest yesterday.
During daytime hours, several stretches of the Keys highway, US 1, were blocked by water and debris; by nightfall, only one small problem area remained and the entire highway was passable, the Florida Highway Patrol said.
There were reports of localized flooding, and some sections of the Lower Keys were still without power early yesterday. But the worst of the storm did not hit land.
"It was fairly nothing," said Gary Wood, who owns a bar in Marathon, about 72km northeast of Key West. "It came through and had a good stiff wind, but that was about it."
In Key Colony Beach, an ocean-front island off Marathon, Mayor Clyde Burnett said a restaurant and hotel were damaged by water and wind, but that widespread problems simply did not arrive as expected.
Visitors ordered out of the Keys will be invited back tomorrow, and virtually all other voluntary evacuation orders in South Florida were lifted after Rita roared past.
Now, all eyes following Rita are turning toward the Gulf -- where the hurricane is causing new anxiety among victims of last month's Hurricane Katrina in Mississippi, Louisiana and Alabama.
At 2am, Rita's eye was about 233km west of Key West. The storm was moving west at 23kph -- a track that kept the most destructive winds at sea and away from Key West.
"There's still plenty of warm water that it needs to move over in the next couple days. The forecast is favorable for further intensification," National Hurricane Center meteorologist Michelle Mainelli said.
Those were words that Gulf Coast residents certainly did not want to hear.
Even those who had survived major hurricanes were getting ready to leave.