A flash flood watch has been posted for north Georgia as forecasters are predicting that the remnants of Tropical Storm Lee could bring the area as much as a half foot of rain.

The flood watch, meaning that conditions may develop that could lead to flooding, is in effect from late Sunday night through Tuesday.

"Widespread rain with embedded thunderstorms is expected to develop over north and central Georgia as Tropical Storm Lee moves northeast from the Louisiana coast and interacts with a cold front drifting southward from the Ohio and Tennessee Valley region," the Weather Service said in a statement issued early Sunday. "This precipitation will likely begin this afternoon and persist through Tuesday."

The Weather Service said that 5 to 7 inches of rain could fall from the northern suburbs of Atlanta northward, with 3 to 5 inches possible as far south as a LaGrange to Eatonton to Washington line, before the rain begins to taper off early Tuesday.

The leading edge of the rain had reached the southern and western suburbs by noon Sunday, and overspread the entire metro area during the afternoon. At 6 p.m., radar showed a band of heavier rain and thunderstorms approaching downtown from the south.

Channel 2 Action News meteorologist Brad Nitz said the widespread heavy rain will be accompanied by cooler temperatures.

Highs will be in the low 80s on Sunday and in the upper 70s on Labor Day and on Tuesday, Nitz predicted.