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Yellow River at GA 124 near Lithonia, GA

River level and flood forecast · Gwinnett County

Normal3.7 ftas of Mon 3:45 PM

The river is 11.3 ft below flood stage (15 ft).

Flow: 236 cubic feet per second (USGS).

The last 7 days and the forecast

0510152025TueWedThuFriSatSunMonAction 13 ftFlood 15 ftModerate 19 ftMajor 24 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage24 ft
Moderate flood stage19 ft
Flood stage15 ft
Action stage13 ft
Record crest (September 21, 2009)27.47 ft

What floods at each level

From the National Weather Service, highest first.

  • 28 ftRecord flooding never seen before occurs with widespread inundation of the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Numerous homes on Riveredge Cove...River Walk...Riverlake Way and Riverview Court will be flooded with water up to 9 feet deep. The USGS gage house will be under 4 feet of water with a data transmission loss. This flooding will be worse than September 2009 flood event.
  • 27 ftNear record flooding occurs with widespread inundation of the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Numerous homes on Riveredge Cove...River Walk...Riverlake Way and Riverview Court will be flooded with water up to 8 feet deep. The USGS gage house will be under 3 feet of water with a data transmission loss. This will be similar to the September 2009 flood event.
  • 26 ftMajor flooding continues with widespread inundation of the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Numerous homes on Riveredge Cove...River Walk...Riverlake Way and Riverview Court will be flooded with water up to 7 feet deep. The USGS gage house will be under two feet of water with a data transmission loss.
  • 24 ftMajor flooding begins. Widespread inundation flooding occurs in the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Several homes on Riveredge Cove...River Walk...Riverlake Way and Riverview Court will be flooded with water up to 5 feet deep. Also the water level will reach the bottom of the USGS gage house which may cause data transmission problems.
  • 23 ftSignificant flooding expands much further into the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Widespread flooding of backyards of homes occurs on Riveredge Cove...River Walk...Riverlake Way and Riverview Court. Also the water level will be up to 4 feet deep in the lower portions of some homes.
  • 21 ftSignificant flooding expands further into the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Widespread flooding of backyards of homes occurs on Riveredge Cove...River Walk...Riverlake Way and Riverview Court. Also the water level will be up to two feet deep in the lower portions of some homes.
  • 19 ftModerate flooding begins. Significant flooding expands into the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Flooding of backyards of homes occurs on portions of Riveredge Cove...River Walk...Riverlake Way and Riverview Court. Also the water level will be reaching the foundations of some of the homes.
  • 17 ftMinor flooding continues and expands further into the woodlands near the river upstream and downstream from the gage on Georgia Highway 124. Some flooding of backyards of homes begin on Riveredge Cove...River Walk...Riverlake Way and Riverview Court.
  • 15 ftFlood stage is reached. Minor flooding will occur in portions of the woodlands near the river upstream and downstream from the gage on Georgia Highway 124.
  • 13 ftBankfull conditions are reached upstream and downstream on the river from the stream gage at Georgia Highway 124.

Highest crests on record

  1. 27.47 ft — September 21, 2009
  2. 17.83 ft — September 28, 2024
  3. 17.24 ft — July 7, 2005
  4. 16.77 ft — May 6, 2003
  5. 16.64 ft — December 24, 2015

Recent crests: 17.83 ft (September 28, 2024) · 15.59 ft (October 12, 2020) · 16.64 ft (December 24, 2015) · 27.47 ft (September 21, 2009) · 17.24 ft (July 7, 2005)

Up and down the river, and nearby

See it on the live map →Radar & warnings for Gwinnett CountyNWS gauge pageUSGS gauge 02207120

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (YELG1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.