If that should occur at high tide, it would bring flood waters to US 19, sheriff's Capt. David DeCarlo, director of Citrus County Emergency Management, said Saturday.
In a tweet Saturday, Governor Bryant said he signed an order making the Mississippi National Guard and other state resources available should they become necessary. The storm had top sustained winds of 40 miles per hour and was expected to strengthen as it moves over the eastern Gulf of Mexico.
Alberto's movement was expected to accelerate Saturday night.
Alberto is forecast to move into the Gulf of Mexico and make landfall somewhere along the northern Gulf Coast early Tuesday, bringing the potential for flooding rain.
The track began trending east on Friday and continues to bring the center of the storm east of Southeast Louisiana.
Rainfall and wind extend far away from the center of the storm, one of the classic hallmarks of a subtropical storm.
The storm is loose and disorganized on Saturday morning.
Alberto's projected storm track has shifted eastward since Friday, lessening its threat to the active oil production areas in the Gulf of Mexico.
Forecasters at the National Weather Service warned residents along coastal Alabama and MS as well as the Florida Panhandle to brace for heavy rain and high winds. An additional 1-4 inches of rain will be possible, which could result in minor flooding. The National Hurricane Center in Miami said the island's rain totals could reach 10 to 15 inches - and even 25 inches in isolated areas. Heavy rainfall, flooding and tropical winds.
Gov. Rick Scott declares state of emergency across Florida over fears of subtropical storm Alberto
"The combination of storm surge and the tide will cause normally dry areas near the coast to be flooded by rising waters moving inland from the shoreline", the National Hurricane Center in Miami said.
Tropical-storm force winds will be possible in western Cuba and in the northern Gulf coast area where watches are posted.
A storm surge of 2 to 3 feet could occur south of Crystal River, he said.
A tropical storm watch is in effect from Louisiana to the Panhandle of Florida.
Rain chances will be minimal on Tuesday before increasing again on Wednesday. A couple of these tropical showers and thunderstorms could also spawn brief tornadoes.
Alberto, now northwest of Cuba, is heading north toward the Gulf and is expected to bring days of heavy rainfall and possible flooding to the coast over the weekend.
It's also more hard for forecasters to model their exact path, National Weather Service meteorologist Robert Ricks said.
Alberto will likely be the second time Mayor LaToya Cantrell's administration will be tested by severe weather in its first three weeks in office.
The threat slides south and east on Sunday and stretches from western Kansas to southern North Dakota.
Indian police kill 12 in protest over copper plant
However no one had been working at the Sterlite Copper subsidiary of Vedanta Resources for nearly two months. The families of each victim would be offered one million rupees' (RM58,000) compensation, he added.