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National Weather Service (NWS) Advanced Hydrologic Prediction Service (AHPS) provides current and archived precipitation analysis at different timescales.

The Advanced Hydrologic Prediction Service (AHPS) provides flood and drought related forecasts for the United States based on streamgage data.

The ACF River Basin Drought and Water Dashboard is a web-based application that allows decision makers to view real-time information on the ACF River Basin all in one place. 

The California Data Exchange Center is a centralized database that stores, processes, and exchanges real-time hydrologic information on precipitation, river forecast, river stages/flow, snow, and r