The remnants of Hurricane Dolly that moved inland in the Lower Rio Grande Valley of south Texas, tracked around a large subtropical high centered over north Texas and was drifting across north Georgia.  The deep tropical moisture from the remnants of the hurricane combined with cold air aloft in an active northwest flow on the east side of the southern plains subtropical ridge to result in the development of numerous thunderstorms during the afternoon and evening.  While the moist adiabatic atmosphere keep most thunderstorms below severe limits, flash flooding in the southwest part of the Atlanta metropolitan area became an issue during the evening as thunderstorms trained over the same areas for several hours.  Four to five inches of rain in Fulton and Douglas county southwest of Atlanta was common during the evening.

Flood in FULTON, GEORGIA
From 31-JUL-08 20:45:00 to 31-JUL-08 23:45:00 (EST-5)
Location: CAMPBELLTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several rounds of thunderstorms tracked across eastern Douglas and southern Fulton county between 6 pm and midnight EDT.  Several streets were flooded in the Union City and Fairburn areas.  Flooding was observed on Georgia Highway 92 in downtown Fairburn and East Camptbellton, also in downtown Fairburn.  Fox 5 Television of Atlanta relayed at least two reports from the public of four or more inches of rain in Union City, and nearly five inches of rain in Fairburn.

Heavy Rain in FAYETTE, GEORGIA
From 31-JUL-08 21:00:00 to 31-JUL-08 23:45:00 (EST-5)
Location: TYRONE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Fox 5 Television of Atlanta relayed a report from the public of 3.30 inches of rain from the Tyrone area as thunderstorms repeatedly tracked across this area between 7 pm and midnight EDT.  No damage or flooding/flash flooding was reported.

Heavy Rain in DOUGLAS, GEORGIA
From 31-JUL-08 19:00:00 to 31-JUL-08 23:45:00 (EST-5)
Location: CHAPEL HILL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Fox 5 Television of Atlanta relayed a report from the public of 3.70 inches of rain from the Chapel Hill area of southern Douglas county.  Similar rainfall likely fell across much of southern and eastern Douglas county and adjacent areas of Fulton county.  No damage or flooding/flash flooding was reported.

Flash Flood in FULTON, GEORGIA
From 31-JUL-08 21:24:00 to 31-JUL-08 23:45:00 (EST-5)
Location: RICO
Flood cause: Heavy Rain
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A survey conducted by the hydrologist at the National Weather Service Forecast Office in Peachtree City, Georgia and information obtained from the Fulton County Emergency Management Director concluded that flash flooding had occurred along and near Bear Creek at Campbellton-Redwine Road in south Fulton county, roughly seven miles northwest of Palmetto.  This was the result of persistent thunderstorms that trained over the area during the evening hours.  Rainfall of 3 to 5 inches fell across this area between 6 pm and midnight with two rounds of significant thunderstorms during this period.  Significant water and mud erosion was observed along Campbellton-Redwine Road roughly 0.5 mile northwest of Bear Creek and another area of erosion noted along Woodruff Road approximately 0.2 mile west of Bear Creek.  Bear Creek was estimated to have risen around two feet above bankful during this event.

Lightning in FULTON, GEORGIA
From 31-JUL-08 18:40:00 to 31-JUL-08 18:40:00 (EST-5)
Location: UNION CITY
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

The Union City Police Department reported that lightning struck and set a tree on fire behind a mobile home in the 7000 block of Goodson Road.