Forsyth County under flood watch as heavy rain moves in

Forsyth County drivers headed into the Wednesday evening commute faced the chance of ponding, rising creeks and water-covered low spots as the National Weather Service in Peachtree City issued a flood watch for the county from 4 p.m. Wednesday through 8 a.m. Thursday.

Forecasters said the round of storms could drop widespread rainfall of 1.5 to 2.5 inches, with localized totals above 4 inches possible. That kind of rain, arriving in multiple rounds from Wednesday afternoon into Thursday morning, raised the risk of flash flooding in poor-drainage areas and flood-prone spots across North Georgia, including Forsyth, Gwinnett, Barrow, Dawson, Lumpkin, Jackson and Banks counties.

The watch landed after a long dry stretch. AccessWDUN reported April 30 that all of northeast Georgia was in extreme drought, the second-worst category on the U.S. Drought Monitor. That mattered in Forsyth County, where hardened ground can shed water quickly instead of soaking it up, sending runoff into roadside ditches, neighborhood drainage systems and smaller waterways faster than residents might expect.

The timing also put pressure on everyday travel and school routines. Forsyth County maintains about 1,200 miles of asphalt roads and 30 miles of gravel roads, giving the county a large network of places where standing water can build fast during heavy bursts of rain. County preparedness guidance warns that as little as 12 inches of moving water can carry away a vehicle, a reminder that flooded pavement can turn dangerous in minutes, especially overnight when visibility drops.

The flood watch was part of a broader weather threat. The National Weather Service said some storms could become severe, bringing damaging wind gusts, a few tornadoes and large hail along with the heavy rain. Forsyth County’s Emergency Management Agency, which coordinates disaster response for the county and the City of Cumming, said its alert system is used for severe thunderstorm warnings, flash flood warnings and tornado warnings. That mix of hazards made the next several hours a test for roads, drainage and anyone trying to get home before the heaviest rain arrived.