Tropical Storm Laura formed Friday morning, but much of Florida moved out of its forecast track, according to the 2 p.m. Friday update from the National Hurricane Center.

A Hurricane Hunter aircraft investigated the system and found it had become better organized over the past several hours, but the hurricane center said it has low confidence in the storm’s track and intensity forecasts because of possible interactions with the islands in the Caribbean.

Tropical storm warnings were posted for Puerto Rico, the U.S. and British Virgin Islands and several others in the eastern Caribbean.

Monroe County Mayor Heather Carruthers declared a state of emergency at noon Friday ordering the mandatory evacuation of all live-aboard vessels, mobile homes, recreational vehicles, travel trailers, and campers.

General population shelters will be discussed Saturday morning to open on Sunday at 3 p.m. for those who live in vulnerable homes or aboard boats, she said.

The latest forecast shows the system in the Florida Straits between Cuba and the Keys as a tropical storm on Monday morning, then passing near Key West as a hurricane and into the Gulf of Mexico. The track has Laura making landfall somewhere between New Orleans and the Florida panhandle as a hurricane in the middle of next week.

South Florida may not get the full brunt of a tropical storm or hurricane but that doesn’t mean we won’t feel some of its effects, according to a National Weather Service briefing Friday morning.

“It’s possible some of the outer bands near the region could spur tornado activity,” said meteorologist Robert Garcia. “That’s something we’ll be monitoring for Sunday and Monday, potentially, with the storm approaching and crossing into the Gulf.”