Hurricane Ian updates: Florida death toll climbs
Lee County, which encompasses Fort Myers, accounts for most of the fatalities.
The remnants of Ian are charging up the East Coast on Saturday after making landfall as a Category 1 hurricane in South Carolina on Friday afternoon.
The monster storm made its first U.S. landfall on Wednesday on Florida's west coast as a powerful Category 4 hurricane, shredding homes with ferocious winds topping 150 mph. Florida's death toll has climbed to at least 81, according to information from local officials.
Latest headlines:
5,000 Florida Guardsmen activated and prepping for Hurricane Ian
Florida Gov. Ron DeSantis has activated 5,000 Florida National Guardsmen to armories across the state in preparation for Hurricane Ian, which is forecast to hit the state on Wednesday.
Roughly 2,000 National Guard members from neighboring states such as Tennessee are also being activated to assist, the Florida National Guard said in a statement Tuesday.
"The Florida National Guard is well-equipped, with assets including high-wheeled vehicles, helicopters, boats, generators and more," the statement said.
The U.S. Navy has authorized non-essential personnel in various Florida counties to evacuate.
-ABC News’ Matt Seyler
Landfall forecast for Wednesday afternoon or evening
Hurricane Ian, barreling north toward Florida with 120 mph winds, is now located about 230 miles away from Sarasota.
Ian is expected to make landfall in Florida on Wednesday afternoon or early evening.
Ian's outer bands are already hitting South Florida, bringing a threat of heavy downpours, strong wind gusts, frequent lightning and even tornadoes. A tornado watch is in effect for South Florida until 5 a.m. Wednesday.
-ABC News’ Dan Peck
Walt Disney World, Universal Orlando to close
Walt Disney World and Universal Orlando will close Wednesday and Thursday due to the storm.
Coastal Georgia, South Carolina under tropical storm watches
As Ian moves north over Florida, tropical storm force winds will reach coastal Georgia and South Carolina.
Tropical storm watches have been issued for Savannah and near Charleston.
Georgia Gov. Brian Kemp has issued a state of emergency.
Ian weakens slightly but will regain strength overnight
Tropical Storm Ian has weakened slightly, but it is expected to not only strengthen but rapidly intensify overnight as it travels over warm waters in the Caribbean.
As of 5 p.m. ET, the storm system had maximum sustained winds of 45 mph and was moving west-northwest at 12 mph, with the center located about 220 miles away from Grand Cayman.
Dry air ahead of the storm has delayed the strengthening trend so far. But the rapid intensification is expected to occur Monday into Tuesday as the system continues across the northwestern Caribbean and closes in on western Cuba.
Over the next 24 hours, the outer bands will impact Jamaica and the Cayman Islands, bringing rounds of heavy rain, possible flash flooding and storm surge. Later Monday and into Monday night, Ian will be closing in on western Cuba and will likely bring significant wind and storm surge impacts to the region.
A hurricane warning is in effect for Grand Cayman and portions of western Cuba. A tropical storm watch has been issued for portions of western Cuba, as well as the lower Florida Keys, including Key West.
As of 5 p.m., the forecast track was nudged slightly eastward. Overall, the forecast guidance variability and uncertainty will remain high, and the track for where the storm will be from the middle to the end of the week will continue to shift over the next 24 to 48 hours.
-ABC News' Dan Peck