The National Weather Service has issued a tornado watch for the six South Mississippi counties until 3 a.m. Tuesday.
A cold front moving across the Southeast is pushing storms and cold air into South Mississippi.
The National Weather Service warns of a slight risk of severe weather, with the main threats being tornadoes, damaging wind gusts and frequent lightning.
Threats will be higher in the central and northern parts of the state, and on the Coast areas north of Interstate 10 have the highest risk of damaging storms.
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Storms are expected to hit the Mississippi Coast between midnight and 6 a.m. Wednesday.
Temperatures will start to drop Tuesday night, with lows in the 30s by Thursday and Friday nights.
Chance of precipitation is 100 percent Tuesday night, lingering at 40 percent during the day Wednesday. The rest of the week is expected to be clear and cool.