Update: Tornado Watch Extended to 8 p.m.

Update, 1:37 p.m.

While the tornado warning has been lifted for North Cobb, the county is under a severe thunderstorm warning until 2:15 p.m., according to the National Weather Service. And the tornado watch from earlier today has been extended until 8 p.m.

Update, 12:52 p.m.

North Cobb is under a tornado warning, according to the National Weather Service.

Update, 8:53 a.m.

Classes are still on at Kennesaw State, according to the university. Cobb remains under a tornado watch until 4 p.m. The tornado warning for Southwestern Cobb and other parts of the metro area has been lifted, according to WSB-TV.

Update, 8:18 a.m.

Cobb County is under a tornado watch until 4 p.m., according to the National Weather Service.

Original report, 5:15 a.m.

Strong winds are expected to develop as a storm system and cold front move into Cobb today.

In effect from 5 a.m. to 7 p.m. today, a wind advisory for north and central Georgia warns of 15 to 25 mph winds with gusts up to 40 mph, which make driving difficult.

A squall line capable of producing widespread damaging winds and isolated tornadoes is expected to cross the area Wednesday night, according to NWS' hazardous weather outlook. Frequent cloud-to-ground lightning and heavy rainfall also can be expected with thunderstorms.

Kennesaw has a 100 percent chance of showers and thunderstorms, some of which could be severe, according to the NWS forecast. The high should reach 65 and gusts of wind could be up to 40 mph before the low Wednesday night dips to around 34 and the windy weather tapers off.