USGS - science for a changing world

South Atlantic Water Science Center

Charlotte-Mecklenburg Hydrologic Network


Floodwater overtopping bridge.

Rising floodwaters overtopping a local bridge. Photograph by Jerald B. Robinson, USGS.

The U.S. Geological Survey (USGS) has been collecting streamflow data in North Carolina for more than 100 years (USGS Water Programs in North Carolina, FS-046-01). In the Charlotte and Mecklenburg County area, a hydrologic data-collection network has been established to collect not only streamflow data but also rainfall data.

FS 036-98
Effects of August 1995 and July 1997 storms in the city of Charlotte and Mecklenburg County, North Carolina
Fact Sheet FS-036-98

In response to the floods of August 1995 and July 1997, the U.S. Geological Survey Cooperative Water Program and Charlotte-Mecklenburg Stormwater Services has expanded and enhanced this data-collection network.

Currently, the network consists of 72 raingages and 54 streamgages. It has grown over the last 20 years and evolved from a two-way polling landline system to a true real-time notification system using line-of-site radios and satellite telemetry.

Charlotte Network

Hydrologic Monitoring Networks

Flood Information

FINS - DIADvisor screenshot

FINS: Flood Information and Notification System

Immediate reporting of extreme conditions during storm events

Rain Distribution Maps

Distribution Maps

Contour Maps and Data

Real-time Data

Online real-time data for North Carolina includes data from the Charlotte-Mecklenburg data-collection network

Current Rainfall

Realtime Water Data


National Water Information System

Charlotte area gages: Map | Table

streamflow network map Rainfall network map