The home page of the Flash Flood web site also holds a hot link to a Java version of the Flash Flood home page. Hereafter, this tutorial refers to the Java version of the home page. Lacking a Java capability on your browser, you could not exploit the Precipitation Estimate Animation button. Otherwise, all products described here are available. To describe the forecast process we follow the Funnel paradigm.
Funnel operates from large scales to small scales.
In the context of the Flash Flood web site, we break it into two stages. The first, Survey, focuses on the larger scales. The second, Diagnosis, focuses on the smaller scales. Whether Diagnosis takes place at all depends on the outcome of Survey. For pedagogical reasons we describe Funnel as if it were a linear process tapping most of the web site products.