The Aviation Forecast Preparation System (AvnFPS) is an AWIPS application that helps forecasters prepare their aviation forecasts and monitor them in real-time using a variety of observational sources. The AvnFPS monitoring capability gives forecasters quick and continuous feedback on TAFs as well as associated observations. This monitoring capability uses a user-configurable, color-coded scheme. AvnFPS includes a specialized editor to aid the production of the TAFs. The editor can display TAFs, guidance products, and current observations as both text and graphics. AvnFPS also includes tools that help forecasters assess the quality of each forecast before it is issued. These quality control tools can assess the syntax of the forecast as well as compare its meteorological content with a database of historical observational data.