Mississippi Gov. Phil Bryant has declared a state of emergency as Subtropical Storm Alberto moves toward the state’s coast.

In a tweet Saturday, Bryant said he signed a proclamation declaring the emergency and an order making the Mississippi National Guard and other state resources available should they become necessary.

The latest advisory from the National Hurricane Center shifts the storm farther east with a potential landfall near the Alabama-Florida state line.

Heavy downpours were expected to begin lashing parts of Florida, Louisiana, Mississippi and Alabama Sunday.

Warren County Emergency Management Director John Elfer said Friday, “it is still too early to determine if it (Alberto) will have any effects on our area.”

Elfer said there’s a good chance of scattered thunderstorms through Memorial Day. A storm Saturday afternoon forced the cancellation of the annual Symphony at Sunset in the Vicksburg National Military Park.

“As we have seen this week, these summertime-like storms can occur quickly and have heavy rain and lightning in them,” Elfer said. “We encourage everyone to stay weather aware and ensure that your weather alert systems are in place and working.”

The Associated Press contributed to this article.