nwis

[Beta] Water Data For The Nation Site Pages

A web app for analyzing hydrology data.

USGS NWIS Mapper (Mapper interface for USGS NWIS Waterdata)

A command-line tool for getting hydroclimate data within CONUS using HyRiver

R package for accessing USGS stream-gage camera images via the NIMS API. Discover cameras, list and download time-lapse imagery, and assemble animated GIFs or MP4 videos of rivers, streams, and flood events across the United States. Pairs with dataRetrieval for NWIS site metadata.

Query real-time and historical water data from ~8,000 USGS stream gages and groundwater wells via MCP. STDIO or Streamable HTTP.

Northwest Instrument System uAnalyst 2000 information, reverse engineering etc.

A lightweight Python toolkit for downloading, processing, and filtering USGS NWIS daily water data. Supports batch downloads, parameter code discovery, and tidy Pandas DataFrames.

Generalized flood monitoring system with multi-source data ingestion (USGS, USACE, ASOS), hydrological zone-based spatial analysis, and real-time alerting with dynamic configuration. Built in Rust , supported by Python.

Initial work toward a analytical database for Upper Colorado Basin hydrology data

Hydrology plugin for Open Science Pillars: SWOT river and lake levels, GRACE-FO groundwater, USGS NWIS streamflow, SMAP soil moisture, and an applied water-resources pack for drought and reservoir analysis. In active development.

Jupyter Notebook of sinusoidal regression of Yuba River data from USGS NWIS

Pacific Northwest Hydrology Plot Analyses

Retrieve sets of tools for LLM agents using query-conditioned hyperedge prediction.

USGS Water Services — independent third-party profile of a public API surface, by API Evangelist. The U.S. Geological Survey (USGS) National Water Information System (NWIS) exposes a suite of REST APIs providing access to real-time and historical water data from over 1.5 million monitoring locations across the United States and territories.