South River at GA 81, at Snapping Shoals, GA Water Level Today

NWS river forecast

Forecast from the NOAA National Water Prediction Service. Issued a few times a day and only while a forecast is active. Not for navigation.

Last 30 days

About this gauge

USGS gauge 02204520 sits on the South River and reads everything draining 468 square miles of the Upper Ocmulgee basin. Its datum sits 557 feet above sea level NAVD88. Daily flow has been on record here since 2010, 16 years of it.

Where this gauge sits in the drainage

Five gauged sites sit upstream of here. The closest is South River at Klondike Road, near Lithonia, GA, reading 182 square miles. This gauge adds the 286 square miles that drain in between. Downstream the next reading comes from Jackson Lake Lloyd Shoals near Jackson, GA at 1,400 square miles, so what passes this gauge is about 33% of the water measured there. Water passing here goes on to Ocmulgee River near Jackson, GA and Ocmulgee River at GA 18, at Dames Ferry, GA.

Normal flows here

The South River runs a median of 408 cfs at this gauge across 16 years of record. February is the fullest month at a median 651 cfs, and October the leanest at 214 cfs. The highest daily mean on record is 17,900 cfs in 2019, and the lowest is 64 cfs in 2012.

Medians from the USGS daily-statistics record, 2010 to 2026. A month at 100% is running at its own long-term median.

Flood stages and record crests

The South River reaches flood stage at this gauge at 12 feet. NWS starts watching it at 10 feet. The highest crest on record is 16.4 feet, in September 2024.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge SPGG1. Stages are gage height, not depth. Not for navigation.