The National Oceanic and Atmospheric Association (NOAA)'s Hydrologic Information Center provides this page on Current Hydrologic Conditions across the US. Categorized into seven sections, the site offers daily information on floods, river/ streamflow conditions, drought, soil moisture, snow conditions, water supply, and meterological outlooks. The depth of each daily summary/ forecast varies by...

The USGS's Toxic Substances Hydrology Program supplies "scientific information to improve characterization and management of contaminated sites, to protect human and environmental health, and to reduce potential future contamination problems." The website features comprehensible articles with links to supplementary materials addressing the latest research findings. Researchers can find information...

The Water Resources Data System is a "clearinghouse of hydrological and climatological data for the State of Wyoming" provided by the University of Wyoming. Online data include a water quality database, climatological data (such as snow depth and precipitation), and earthquake and landslide data. A water library link contains research briefs, publications, a reference shelf, newsletters, and other...