Sarasota County, Florida, officials announced emergency crews will no longer respond to calls due to Hurricane Ian.

In Charlotte County, just north of Fort Myers, emergency response calls for fire and EMS service will also be suspended.

The Charlotte County Sheriff’s Office added, “911 will still be operational and calls will be triaged for response as soon as weather condition permit.”

An extreme wind warning has been issued near Fort Myers as Hurricane Ian nears.

Naples has reported a wind gust of 112 mph.

Fort Myers resident Debbie Levenson and her husband chose not to evacuate for Hurricane Ian and are staying put at home.

“Hurricanes are a concern, but I don't freak out about it. You do what you have to do. You get your supplies, make sure you have flashlights, do your laundry ahead of time in case you lose power,” she told ABC News. “We bought bottled water and wine. We put gas in the car. The store shelves were not empty.”

"We are concerned with local flooding, but we drained the pool and are keeping an eye on the roads,” she continued. “Most of the neighborhood has stayed. Neighbors only left if they had small children or had a medical reason.”

Ken Graham, director of NOAA's National Weather Service, warned people sheltering in place to not venture out once the storm passes over.

“Don’t go out there. It’s so dangerous to be out there. So even if you see the water receding, it’s not the time to go out,” he said.

-ABC News' Morgan Korn and Max Golembo

Hurricane Ian, a Category 4 with 155 mph winds, is nearing record-breaking wind levels.

Only four hurricanes have ever made landfall in the continental U.S. with winds over 155 mph: Labor Day in 1935 with 185 mph winds; Camille in 1969 with 175 mph winds; Andrew in 1992 with 165 mph; and Michael in 2018 with 160 mph.

Naples, Florida, reached a new record-high storm surge of 4.8 feet Wednesday morning -- and the water continues to rise.

This beats the record of 4.25 feet reached during Hurricane Irma in 2017.

Ken Graham, director of NOAA's National Weather Service, warned Wednesday, “This is going to be a storm we talk about for many years to come -- historic event."

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