Some dry air has moved under the storm and may limit the rain over the Suncoast for a time. The rain will continue to push northward bringing a 90 percent chance of rain by Monday night and a 100 percent chance of rain on Tuesday.
Forecasters at the National Weather Service in Mobile, Alabama, warned residents along coastal Alabama and MS as well as the Florida Panhandle to brace for heavy rain and high winds.
A tropical storm warning has been issued for the Mississippi/Alabama border to the Aucilla River in Florida. The tropical storm watch along the north-central Gulf Coast has been discontinued.
The National Hurricane Center in Miami issued tropical storm warnings for parts of Florida and Alabama, saying tropical storm conditions are possible there by Sunday night.
Florida's Governor, Rick Scott, has also declared a state of emergency. The Florida Keys could see as much as 10 inches of rain, the hurricane center said. Its top sustained winds were 40 miles per hour. In Mississippi, Gov. Phil Bryant said on Twitter that he has signed an emergency proclamation to make the National Guard and other resources available.
Gulf Coast residents should "take this storm seriously", the National Weather Service said early on Sunday, as Subtropical Storm Alberto drove north, threatening heavy rains and winds to the southern coastal states. Water could reach up to 4 feet above ground in some areas if the peak surge occurs during high tide, the agency said on Facebook.
The first named storm of this season, Alberto is expected to strengthen as it moves up the Gulf this weekend, the National Hurricane Center said, bringing heavy rains and possible floods to Florida and much of the Southeast in the coming days. There were no immediate reports of emergencies.
In our area, the primary threat from Alberto is flooding from heavy rainfall. Some beachfront and riverfront communities are already handing out sandbags.