US › Current Conditions › Hydrology
| River and Streamflow |
| National Streamflow Conditions Real-time data by state from the U.S. Geological Survey |
| River and Streamflow Conditions River and streamflow conditions from the National Weather Service |
Drought |
| Drought Assessment The latest weekly assessment from the U.S. Drought Monitor and the latest seasonal outlook from the National Weather Service's Climate Prediction Center |
| National Integrated Drought Information System National Drought Conditions, Impacts, and Forecasts |
| National Drought Mitigation Center Drought preparation and risk management information from the University of Nebraska, Lincoln |
Reservoirs |
| Western U.S. Water Supply Water supply data from the National Resources Conservation Service |