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Hudson River Salt-Front Data

Tide stage, specific conductance, water temperature, and freshwater inflow at selected Hudson River (New York) gages updated every hour. Water temperature and specific conductance are measured at a depth of 10 feet below NGVD 1929 (mean sea level). These data include PROVISIONAL DATA subject to revision.

This information has been made possible by funding from the U.S. Geological Survey Cooperative Water Program and National Streamflow Information Program and New York City Department of Environmental Protection, New York State Department of Environmental Conservation, New York State Department of Health, Hudson Valley Regional Council (representing Dutchess, Orange, Putnam, Rockland, Ulster, and Westchester Counties), the Hudson River-Black River Regulating District, and the City of Poughkeepsie, NY.

| Estuary Conditions | Streamflows | Forecasts | Historical Events | Project Description and Reports |

Hudson River Estuary:

Streamflows and Reservoir Levels:


Historical Event Information:

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USGS Hudson River Salt-Front Study (Project Description, Map, etc.):