| National Weather Service Sites | Headquarters | National and Regional Headquarters |
| River Forecast Centers | ||
| Local Forecast Offices | ||
| Other U.S. Government Sites | USGS Water Resources Home Page | |
| NASA/MSFC Global Hydrology and Climate Center | ||
| Great Lakes Probabilistic Hydrologic Forecasts | ||
| State/Regional Sites | GLIN--The Great Lakes Information Network | |
| CDEC Home Page--California Data Exchange Center | ||
| Universities | Undergraduate Study in Hydrology and Water Resources | A good primer for those who have no idea what hydrology is from the University of Arizona |
| Indiana WETnet | From Purdue University | |
| Imternational Sites | British Columbia Ministry of Environment Lands and Parks Snow Information Home Page | |
| Danish Hydraulic Institute (DHI) | ||
| CSIRO Division of Water Resources (Australia) |