South River at Harriston, VA 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 01627500 sits on the South River and reads everything draining 212 square miles of the South Fork Shenandoah basin. Its datum sits 1,129 feet above sea level NAVD88. Daily flow has been on record here since 1925, 84 years of it.

Where this gauge sits in the drainage

Two gauged sites sit upstream of here. The closest is South River near Dooms, VA, reading 148 square miles. This gauge adds the 64 square miles that drain in between. Downstream the next reading comes from South Fork Shenandoah River near Lynnwood, VA at 1,079 square miles, so what passes this gauge is about 20% of the water measured there.

Normal flows here

The South River runs a median of 162 cfs at this gauge across 84 years of record. March is the fullest month at a median 271 cfs, and September the leanest at 81 cfs. The highest daily mean on record is 16,400 cfs in 1986, and the lowest is 25 cfs in 1930.

Medians from the USGS daily-statistics record, 1925 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 9.5 feet. NWS starts watching it at 6 feet. The highest crest on record is 18.8 feet, in November 1877.

Flood categories and crest history from the NOAA National Water Prediction Service, gauge HARV2. Stages are gage height, not depth. Not for navigation.