Live data from 11,539+ stations

Monitor water levels
in real-time

Streamflow data, gauge heights, and temperature readings for streams, rivers, lakes, and reservoirs across the United States.

Live Network

Monitoring the nation's waterways

Real-time data collected from USGS monitoring stations across all 50 states.

11,539

Active stations

150 M

Total measurements

113,019

Updates today

36

Flood alerts