From the National Hydrologic Warning Council website:

The National Hydrologic Warning Council (NHWC), with membership across the United States and around the world, is a non-profit organization dedicated to assisting emergency and environmental management officials by providing expert advice on the use of real-time, high quality hydrologic information from automated remote data systems, with the goals of protecting lives, property, and the environment. 

The NHWC hosts biennial conferences and workshops to assist local water resource managers and emergency management officials in the collection, evaluation, and dissemination of real-time hydrologic data to protect lives and property.

Stop by the Campbell Scientific booth, #7.