Doppler radar from the National Weather Service now shows the entire state of Georgia being drenched in rain from Tropical Storm Irma.
Almost all tropical cyclones that hit the United States produce at least one tornado, "provided enough of the. cyclone's circulation moves over land", the National Oceanic and Atmospheric Administration said.
Officials still warn people to stay off the streets, even as the storm winds die down.
About 400 miles north of Hurricane Irma's first landfall in South Florida, the coastal city of Jacksonville is being swallowed by water, with heavy rains and a record storm surge turning streets into churning rivers and wind-whipped waves crashing through windows.
Forecasters are predicting sustained winds of 30 to 45 miles per hour with gusts of 45 to 60 miles per hour, downed trees and power outages in those areas.
Hurricane Irma has weakened slightly as it brings a heavy rainfall to Florida it's still a significant threat to the southeast, including some possible effects here in SC.
However, forecasters are warning that swells generated by Irma along the southeastern US coast could still cause "life-threatening surf and rip current conditions".
US President Donald Trump has called Irma "some big monster" and lauded the emergency officials for their efforts. Jose was described as a "dangerous" Category 4 storm.
Downgraded from a hurricane to a tropical storm, Irma flooded several northern Florida cities with heavy rain and high storm surge on Monday as it headed out of the state after cutting power to millions and ripping roofs off homes.
The entirety of the Florida Keys was under mandatory evacuation orders ahead of Irma.
Puerto Rico: More than 6,000 residents of the United States territory are in shelters and many more without power.
Storm chasers stood outside to measure the storm's strength.
"As soon as the wind shifts direction, the water will come back quickly and continue to move inland", CNN meteorologist Judson Jones said.
Similar storm surge and winds gusts are possible up to coast to Charleston too. Hurricane warnings were in effect for the islands of Sint Maarten, St. Martin and St. Barthelemy.
- In Venice, Florida, the water plant was shut down after it was damaged by the storm.
"There is the danger of life-threatening storm surge flooding along portions of the coasts of Florida, Georgia and SC, where a Storm Surge Warning remains in effect". Later on, there would not be much to see as the surging rains and floods carry on into the evening. "The wind was destructive but that 15 feet of storm surge would have been catastrophic".
Tropical-storm-force winds remain the most unsafe and severe possible impact from this storm, experts say.