Web Tools
Browse these interactive tools that provide real-time information on water data.
Current Conditions and Discrete Streamflow
Current Conditions and Discrete Streamflow
Current Conditions Groundwater / Precipitation
Current Conditions Groundwater / Precipitation
Current Conditions Lakes & Reservoirs, Water-Quality
Current Conditions Lakes & Reservoirs, Water-Quality
Water Data for the Nation (WDFN) Water Data for the Nation (WDFN)
Water Data for the Nation (WDFN) is the home for USGS’s modernization of public delivery of water data.
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Water Resources Mission Area, Alaska Science Center, Arizona Water Science Center, California Water Science Center, Caribbean-Florida Water Science Center (CFWSC), Central Midwest Water Science Center, Central Plains Water Science Center, Colorado Water Science Center, Dakota Water Science Center, Idaho Water Science Center, Lower Mississippi-Gulf Water Science Center, Maryland-Delaware-D.C. Water Science Center, Nevada Water Science Center, New England Water Science Center, New Jersey Water Science Center, New Mexico Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, Pacific Islands Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Utah Water Science Center, Virginia and West Virginia Water Science Center, Washington Water Science Center, Wyoming-Montana Water Science Center, Hydrologic Instrumentation Facility (HIF)
USGS Water Data APIs USGS Water Data APIs
This site is the home for modernized access to USGS water data in machine-readable formats via REST APIs, a common type of web service programs use to search and download data. These services provide USGS water data, ranging from continuous measurements of streamflow to information about individual USGS sites and more.
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Water Resources Mission Area, Alaska Science Center, Arizona Water Science Center, California Water Science Center, Caribbean-Florida Water Science Center (CFWSC), Central Midwest Water Science Center, Central Plains Water Science Center, Colorado Water Science Center, Dakota Water Science Center, Idaho Water Science Center, Lower Mississippi-Gulf Water Science Center, Maryland-Delaware-D.C. Water Science Center, Nevada Water Science Center, New England Water Science Center, New Jersey Water Science Center, New Mexico Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, Pacific Islands Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Utah Water Science Center, Virginia and West Virginia Water Science Center, Washington Water Science Center, Wyoming-Montana Water Science Center
Water Data Blog Water Data Blog
Water information is fundamental to national and local economic well-being, protection of life and property, and effective management of the Nation’s water resources. The Water Data Blog posts highlight water data developments, data, and applications.
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Water Resources Mission Area, Water Availability and Use Science Program, Alaska Science Center, Arizona Water Science Center, California Water Science Center, Caribbean-Florida Water Science Center (CFWSC), Central Midwest Water Science Center, Central Plains Water Science Center, Colorado Water Science Center, Dakota Water Science Center, Idaho Water Science Center, Lower Mississippi-Gulf Water Science Center, Maryland-Delaware-D.C. Water Science Center, Nevada Water Science Center, New England Water Science Center, New Jersey Water Science Center, New Mexico Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, Pacific Islands Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Utah Water Science Center, Virginia and West Virginia Water Science Center, Washington Water Science Center, Wyoming-Montana Water Science Center
WaterAlert WaterAlert
The U.S. Geological Survey WaterAlert service provides notifications to your email or phone for changes in water conditions based on thresholds you choose.
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Water Resources Mission Area, Idaho Water Science Center, New Jersey Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oregon Water Science Center, Upper Midwest Water Science Center, Wyoming-Montana Water Science Center, Hydrologic Instrumentation Facility (HIF), National Water Quality Laboratory, Office of Risk and Resilience, Water Science School
National Water Dashboard (NWD) National Water Dashboard (NWD)
The National Water Dashboard (NWD) is a mobile, interactive tool that provides real-time information on water levels, weather, and flood forecasts - all in one place on a computer, smartphone, or other mobile device. The NWD presents real-time stream, lake and reservoir, precipitation, and groundwater data from more than 13,500 USGS observation stations across the country.
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Water Resources Mission Area, Alaska Science Center, Arizona Water Science Center, California Water Science Center, Caribbean-Florida Water Science Center (CFWSC), Central Midwest Water Science Center, Colorado Water Science Center, Dakota Water Science Center, Idaho Water Science Center, Lower Mississippi-Gulf Water Science Center, Maryland-Delaware-D.C. Water Science Center, Nevada Water Science Center, New England Water Science Center, New Jersey Water Science Center, New Mexico Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, Pacific Islands Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Utah Water Science Center, Virginia and West Virginia Water Science Center, Washington Water Science Center, Wyoming-Montana Water Science Center, Hydrologic Instrumentation Facility (HIF), Office of Risk and Resilience, Saline Lake Ecosystems Integrated Water Availability Assessment
Nowcast Beach Status Nowcast Beach Status
NowCast – A daily nowcast of recreational water quality conditions Nowcast predicts water quality conditions at select beach swimming areas in Lake Erie and Lake Ontario. Predictions are only posted during the beach swimming season in Ohio, Pennsylvania, and New York.
MODFLOW MODFLOW
MODFLOW is the USGS's three-dimensional (3D) finite-difference groundwater model. MODFLOW is considered an international standard for simulating and predicting groundwater conditions and groundwater/surface-water interactions.
SPARROW SPARROW
SPARROW (SPAtially-Referenced Regression On Watershed attributes), is watershed based and designed for use in predicting long-term average values of water characteristics, such as concentrations and amounts of selected constituents that are delivered to downstream receiving waters.
StreamStats StreamStats
StreamStats is a Web application that incorporates a Geographic Information System (GIS) to provide users with access to an assortment of analytical tools that are useful for a variety of water-resources planning and management purposes, and for engineering and design purposes.