People outdoors should seek shelter immediately. If you can hear thunder, you are close enough to be struck by lightning.

At 612 PM EDT, a line of strong thunderstorms was along a line extending from Big Frog Mountain to near Talona to near Canton to near Sandy Plains, and moving east at 30 mph. HAZARD...Up to 40 mph wind, pea sized hail and frequent cloud to ground lightning. SOURCE...Radar indicated. IMPACT...Expect minor damage to tree limbs and blowing around of light, unsecured objects. Locations impacted include... Marietta, Canton, Cumming, Jasper, Dawsonville, Ellijay, Blue Ridge, Peachtree Corners, Mountain Park, Roswell, Johns Creek, Alpharetta, Smyrna, Milton, Duluth, Woodstock, Holly Springs, Austell, Berkeley Lake, and Ball Ground.