The National Weather Service in Jackson has issued a Flash Flood Watch 
for: Attala, Choctaw, Copiah, Hinds, Holmes, Humphreys, Leake, Madison MS, 
Rankin, Scott, Simpson, Smith and Yazoo. 
In east central Mississippi, Clarke, Jasper, Kemper, Lauderdale, Neshoba, 
Newton, Noxubee and Winston. 
In north central Mississippi, Carroll, Grenada, Leflore, Montgomery and 
Webster. 
In northeast Mississippi, Clay, Lowndes and Oktibbeha. 
In northwest Mississippi, Bolivar, Sunflower and Washington. 
In south central Mississippi, Jefferson Davis, Lawrence, Lincoln and 
Marion. 
In southeast Mississippi, Covington, Forrest, Jones and Lamar. 
In southwest Mississippi, Adams, Claiborne, Franklin MS and Jefferson. 
In west central Mississippi, Issaquena, Sharkey and Warren.
From Friday morning through Saturday afternoon

 A slow moving storm system will setup periods of heavy rainfall
  Friday morning through Saturday afternoon. Rainfall amounts of
  three to five inches will be common with locally higher amounts
  possible. These amounts over relatively short periods of time
  will likely cause some flash flooding.

 Some roads may be flooded or possibly closed.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.

You should monitor later forecasts and be prepared to take action
should flash flood warnings be issued.