NEW ORLEANS – Hurricane Ida, the first Atlantic hurricane to target the United States this year, plodded Sunday toward the Gulf Coast with 105 mph winds, bringing the threat of flooding and storm surges.

A hurricane watch extended over more than 200 miles of coastline across southeastern Louisiana, Mississippi, Alabama and the Florida Panhandle. Louisiana’s governor declared a state of emergency.

Authorities said Ida could make landfall as early as Tuesday morning, though it was forecast to weaken by then. Officials and residents kept a close eye on the Category 2 hurricane as it approached, though there were no immediate plans for evacuations.

Sunday evening, Ida was located 445 miles south-southeast of the mouth of the Mississippi River and moving northwest near 12 mph. The latest forecast from the National Hurricane Center shows Ida brushing near Louisiana and Mississippi, then making landfall near Alabama before continuing across north Florida.

“Even though we’re telling everybody to be prepared, my gut tells me it probably won’t be that bad,” said Steve Arndt, director of Bay Point Marina Co. in Panama City.

In Louisiana, Gov. Bobby Jindal had declared a state of emergency as a precaution, and the National Guard was on high alert if assistance was needed. New Orleans wasn’t included in the hurricane watch.

But officials were encouraging residents to prepare for potential gusts of 60 mph by removing any tree limbs that could damage their homes and securing or bringing in any trash cans, grills, potted plants or patio furniture.

Nearly 1,400 Louisiana residents are still living in federally issued trailers and mobile homes after hurricanes Katrina and Rita; nearly 360 units remain in Mississippi.

“FEMA stresses that those in temporary (housing) units should not take chances,” Federal Emergency Management Agency spokesman Andrew Thomas said. “Leave the unit behind and evacuate to a permanent structure that will better withstand tropical weather systems and the associated winds.”

Mississippi authorities warned residents to be vigilant. Authorities were monitoring conditions to see whether any evacuations of lower-lying areas or school closures would be necessary.

“It is likely we will at least be hit with strong winds and some flooding in our coastal counties,” said Jeff Rent, a spokesman for the Mississippi Emergency Management Agency. Officials “do not want anybody to be caught off guard.”

Mississippi Emergency Management Agency Director Mike Womack said forecasts called for tides of 4-7 feet above normal and rainfall totals of 5-7 inches within 24 hours, which could mean flooding along the coasts and along rivers.

In the Florida Panhandle, residents in Bay County and Panama City were being advised to secure boats and prepare for storm surges that could reach 2-3 feet. Heavy rain, wind and possible flooding was also expected.

“You really don’t know until it gets close how you’re going to be affected by it,” said Brad Monroe, Bay County’s deputy chief of emergency services.

Ida wasn’t expected to pack the wallop seen in 2008 when hurricanes Gustav and Ike pelted the Gulf Coast back-to-back. There have been nine named storms this season, which ends Dec. 1.