Software has been developed over the past decade to access, archive, and display weather information from thousands of surface weather stations from hundreds of mesonets around the United States as part of MesoWest (http://mesowest.utah.edu). Due to increasing demands for real-time and retrospective access to weather information by operational forecasters, researchers, and the general public, much of the existing software needed to undergo a significant technical refresh rather than continuing to layer additional functionality to the legacy software. Fundamentally, a new data service engine to query MySQL databases was necessary to develop a single point of entry for data requests; provide a data API to allow data and metadata requests for a variety of user application objectives; create an object based data service system that can be extended as needed; and allow users to access weather information in a variety of standardized formats. The advantages of this approach include a consistent framework for handling automated large data volume requests as well as desktop PC or mobile device applications. Improved tools for visualizing metadata and data for a variety of applications will be demonstrated.