Real-Time Streamflow Conditions for Maryland — 146 Monitoring Stations
Maryland: 146 Streamflow Sites
md: 146 Streamflow Sites
What's the Flow? provides live river gauge readings for 146 USGS monitoring stations across Maryland, updated in real-time. Track water levels, flow rates, and potential flood risks for rivers and streams throughout the state.
Data is sourced directly from the U.S. Geological Survey (USGS) and covers major rivers, tributaries, and watersheds across Maryland. Whether you're monitoring flood conditions, planning a fishing trip, or assessing whitewater conditions, What's the Flow? gives you the data you need.
About Streamflow Data for Maryland
Streamflow data is collected continuously by USGS monitoring stations positioned at key points along rivers and streams across Maryland. Each station measures water level (stage) and calculates flow rate (discharge) in cubic feet per second (cfs), providing a real-time picture of river conditions throughout the state.
What's the Flow? aggregates this data into an easy-to-read format, allowing you to quickly assess current conditions, compare flow rates to historical median flows, and identify rivers running significantly above or below normal levels.