A tropical tango known as the Fujiwhara effect can unfold when two storms move too close together and start to influence one another's strength and track.
Ian strengthened back to a Category 1 storm before landfall.
As elevated prices for oil and gas strain U.S. households, the country faces a weather event that some fear will send the costs of these essentials even higher: Hurricane Ian.
Sustained winds could exceed 115 mph in some parts of Florida.
When the hurricane closes in on land, its strong winds push that water toward the coast and up onto land.
Cancellations and closures are already piling up across the Florida peninsula due Hurricane Ian.
