Hurricane Idalia roared ashore Wednesday morning as a Category 3 tropical cyclone in Florida's Big Bend area.

The National Hurricane Center warned that "life-threatening storm surge inundation" was likely along Florida's Gulf Coast and strong winds would spread across northern Florida and southern Georgia as Idalia moved inland. Residents are advised to prepare for long-lasting power outages.

The hurricane has already caused a mess for some travelers. Tampa International Airport closed Tuesday ahead of the storm, and flights at other airports have also been impacted into Wednesday. Several cruises and theme parks have had to adjust operations for the safety of guests and employees.

Here's what travelers should know.