MIAMI (BLOOMBERG) - After coming ashore in the Florida Keys overnight, Tropical Storm Eta will wander the eastern Gulf of Mexico, dumping heavy rain on the Sunshine State and raking it with gusty winds.
Eta will re-strengthen as it meanders over the south-eastern Gulf of Mexico on Tuesday (Nov 10), according to the National Hurricane Centre.
Flash and urban flooding will also be possible for the Bahamas and the remainder of southern and eastern Florida over the next several days.
"The biggest problem with this system is going to be the rainfall," said Mr Dan Kottlowski, a meteorologist at AccuWeather Inc. "A lot of places are going to have days of pouring rain."
Neighbourhoods flooded across several parts of South Florida, including Miami's Brickell Avenue financial district, where several banks and investment firms have their offices.
The official hurricane centre track forecast currently takes Eta on a u-shaped path through the eastern Gulf of Mexico. Its threat to offshore oil and natural gas production will probably be low, Mr Kottlowski said.
Eta adds to a record-breaking Atlantic hurricane season that's seen hundreds of deaths, billions of dollars in damage, and a total of 28 storms.
So many storms have formed that the hurricane centre used up all the names on the official list by mid-September and has had to use Greek letters to designate subsequent systems.
Eta is the 12th storm to hit the US this year, an all-time high.
Eta made landfall in Florida at around 11pm local time on Sunday and has since moved westward near the Dry Tortugas, a group of islands at end of the Florida Keys that's home to a 19th century military fort.
Across Florida, more than 9,000 customers are without power, according to PowerOutage.us, a website that tracks blackouts.
The storm has already left a path of destruction through Central America and the Caribbean.
Eta previously made landfall in Cuba early Sunday with 105kmh winds and heavy rains. The storm killed more than 50 people across Central America last week, and more than 100 others are missing after it struck that region as a major hurricane, according to the Associated Press.
Oddly, because tropical storms spin counter-clockwise, some of the highest wind gusts have been hitting eastern Florida far from Eta's centre, Mr Kottlowski said. Also, winds at the edge are travelling over water, so there is nothing to slow them down before they hit the eastern coast.
Part of what is keeping Eta at bay through the course of the week is a large dome of high pressure that could generate record high temperatures across much of the eastern US this week, said Mr Jim Rouiller, lead meteorologist at the Energy Weather Group.
Temperatures will reach 24 deg C Monday in Chicago and 23 deg C in New York, the National Weather Service said.
Eta will likely make landfall again somewhere between Tampa and the Florida Panhandle on the state's west coast by as late as Saturday.
For the US, Eta's destruction probably won't match the tragedy still unfolding across Central America. The US economic tally will probably be less than US$100 million (S$134.6 million) in insured losses, said Mr Chuck Watson, a disaster modeler for Enki Research.
Florida Governor Ron DeSantis has declared an emergency in advance of Eta.
Beyond Eta, the hurricane centre is tracking two other potential systems, one in the Caribbean with a 50 per cent chance of becoming a storm in five days and the other in the central Atlantic with an 80 per cent chance.
"It's not over," Mr Rouiller said. "I think we're going to have another one. The ocean temperatures are warm enough to be supportive of hurricane growth."