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 Global Hydrology Resource Center (GHRC) of the National Aeronautics and Space Administration provides data ingest, archive, and distribution services for the Global Hydrology and Climate Center (GHCC). Eight categories of online data are available to download using FTP. These include MSFC SSM/I Brightness Temperature, MSFC SSM/I Daily Gridded Products, and MSU Daily/Monthly Anomalies/Annual...

Provided by the Global Hydrology Research Group at the University of New Hampshire, this impressive, electronic, regional hydrometeorological data bank is designed "to support pan-Arctic hydrological sciences and water resource assessment in the Arctic regions." To access the database, select a 15-degree block area (and then specific stations within each block) from a color map of the Arctic...

The Global Hydrology Research Group at the University of New Hampshire provides this excellent resource on regional hydrometeorological data for South America, Central America, and the Caribbean. Available in English, Spanish, or Portuguese, the data are organized by geographic location. Two large data sets are available to the general public: Monthly Time Series and Climatological (site-specific...