Strong thunderstorms began popping up across the northern suburbs early Sunday afternoon, while torrential rains earlier in the day prompted a flash flood warning for Gilmer County.
Just before 2 p.m., the National Weather Service issued a severe thunderstorm warning for Cobb, Douglas and Paulding counties. That warning expired at 2:30 p.m.
The Weather Service also posted a significant weather advisory for frequent lightning in Cobb, Cherokee, Fulton, DeKalb, Gwinnett, Clayton, Rockdale, Barrow, Walton, Douglas, Paulding, Polk and Haralson counties until 2:30 p.m.
Earlier, the Weather Service issued a flash flood warning for Gilmer County after an estimated 4 to 5 inches of rain fell Sunday morning.
Sunday afternoon’s downpours made a mess of traffic on metro interstates and caused flight delays at Hartsfield-Jackson International Airport. At 3:15 p.m., the Federal Aviation Administration reported delays of 45 minutes to an hour for departing flights and delays of 30 to 45 minutes for flights bound for Atlanta.
Rainfall totals across metro Atlanta through 3 p.m. included .39 inch in Chamblee, .59 inch in Marietta and .92 inch just west of downtown Atlanta.
Channel 2 meteorologist Brad Nitz said the chance of rain is 40 percent Sunday and again on Labor Day, decreasing slightly to 30 percent by Tuesday.
Highs will be in the upper 80s through Tuesday, with lows in the low 70s.
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