There also was a storm surge watch from Horseshoe Beach, Fla., west to the mouth of the Mississippi River.
Forecasters noted in their discussion about the storm, "Alberto is not very well organized this morning".
Alberto was still struggling on Saturday, according to the hurricane center. The next storm update will be issued by 1 p.m. CST. It then is anticipated to turn to the northwest on Sunday.
Isolated rainfall totals could reach 8 or 9 inches somewhere along the northern Gulf Coast, although it's too early to be able to predict exactly where.
Flooding will be the main threat with the storm, regardless of strength and exact landfall. Often, these storms have a radius of maximum winds which is farther out than what is observed for purely "tropical" systems. The hurricane center said gradual strengthening will be possible until landfall.
Shooting at Dixon High School
A 19-year-old former student was shot by a police officer after arriving at Dixon High School with a weapon this morning. Classes were canceled Thursday at the high school about 80 miles (130 kilometers) west of Chicago .
Hurricane forecasters analyze a combination of short and long-term climate trends, along with sophisticated computer models when making their predictions for a hurricane season. It's a hybrid of a tropical storm and a regular low pressure system. A Tropical Storm Watch is in effect for Indian Pass near Apalachicola to Grand Isle, La.
With the extra rainfall forecast, flooding remains a concern beginning late in the weekend and into the middle of next week.
A Tropical Storm Watch means that tropical storm conditions are possible in the Yucatan and Cuba portions of the watch area, in this case within the next 24 hours.
The National Weather Service has issued a flash flood watch for most of southeast Louisiana. However the maximum water rise looks to be on Sunday night into Monday night. "There could be some possible high surf with hazardous high risk of rip currents along the beaches".
Even though South Florida is not in the projected path of Alberto, the region is on the east side - the wettest side - of the storm.