Bill Callahan is Vice President of Federal Programs at Earth Networks in Germantown, Maryland. He is responsible for working with federal, state and local constituencies to collaboratively identify environmental monitoring, alerting and forecasting needs. Previously, as Director of Product Management, he led the development of advanced weather information, visualization and alerting products and services. Earlier, he served in progressively responsible sales management, engineering, and product management roles in the atmospheric and environmental fields. Mr. Callahan began his career as an Air Force officer, during which time he provided direct weather forecasting support to several military operations. In addition, he served on the source selection team and as the first program manager of a new Air Force digital weather database and visualization system. As a result of these accomplishments, he was selected Air Force Meteorologist of the Year (Centralized Facility) in 1990. Mr. Callahan has a BS degree in meteorology from Florida State University and a master of public administration in environmental management, with focus on atmospheric science, from North Carolina State University.