Power poles were toppled over and tornadoes touched down north of Miami and near Fort Lauderdale.
Both coasts were expected to face several feet of storm surge, with the the worst in Sarasota.
Max Arias from Clovis was scheduled to work in Orlando this week.
The trip had been scheduled before Milton formed so Arias' fiancé, Rachel Perez, decided to tag along to do some sight seeing, including Walt Disney World.
"Happiest place on earth. We just didn't think it was going to be the wettest and windiest place on earth," said Arias.
Perez explored a little Tuesday but for now, the only sights they're seeing are inside their hotel.
"It's pretty windy and you can actually feel it on the window. The windows are pushing in. So, it's kind of scary thinking what's gonna happen, you know, in the next eight hours or so," explained Arias.
Clovis couple riding out Hurricane Milton amid trip to Orlando
UPDATES: Hurricane Milton makes landfall in Florida as Category 3 storm
"Happiest place on earth. We just didn't think it was going to be the wettest and windiest place on earth," said Arias.
The pair says they were somewhat comforted by how staff is treating the storm.
"They're actually pretty calm about it. It seems like they have everything under control," explained Perez.
As Milton moved in, so did thousands of volunteers and utility workers.
The American Red Cross of the Central Valley sent about 30 volunteers to Florida.
Wednesday, Governor Gavin Newsom announced hundreds of firefighters and ground support personnel from California Urban Search and Rescue Task Force teams are headed across the country to help with emergency operations.
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