The Hydrological Automated Data Systems Group (HADS) develops, maintains and provides user support for data collection systems and prepares data products for use both in NWS operations and by external users.

The Hydrometeorologic Design Studies Center (HDSC) prepares and publishes U.S. design standards and estimates for probable maximum precipitation and precipitation frequencies.

NOAA Hydrologic Data Systems (NHDS) Group provides access to historical data for use in calibration of hydrologic models and development of hydrometeorologic techniques as well as ensuring the capture and provision of needed data not collected by other agencies.




Office of Hydrologic Development (OHD)