Streamflow rates and Reservoir levels are extremely important for many outdoor activities that involve water; the map below contains streamflow locations with the longest consistent recordings of flow rates along with locations that keep current and historical reservoir data.

Click on a circle on the map above to be directed to the correct USGS Water Resources of Pennsylvania webpage

Using the USGS Water Resources of PA website

Streamflow

Once the webpage for the correct location containg streamflow data for the site you selected has loaded use the drop down menu located in the center of the page, outlined in blue. From this menu realtime and historical data is accessible with historical data located in the sections containing "statistics" in their title.

Reservoir

Once the webpage for the correct location containg reservoir data for the site you selected has loaded site information and a historical graph are shown. This graph can display data from the last 31 days or change the output type from "graph" to "table" to see what the actual levels were during the times of measurement.

 

For current and historical water level information about the Great Lakes visit the Center for Operational Oceanographic Products and Services

To view forecast stream level information for some areas visit the Advanced Hydrologic Prediction Service, links to locations of stream information are along the bottom of the page

Precipitation Totals