In 2007 storm Kyrill unleashed its wrath on Europe. In the German state of North Rhine-Westphalia forest damage of an estimated 1.5 billion euros was incurred. In order to minimize such damages in the future, storm simulations can be consulted as a suitable aid to support forestry planning. This video shows a realistic visualization of a computational fluid dynamics (CFD) data set, which has been calculated for an area near Schmallenberg using the parameters for Kyrill. Through intuitive visualization by particle tracing it immediately becomes apparent why exactly windfalls had come about. Through the deployment of the demonstrated simulation technology such risk areas can be identified and taken into consideration accordingly in forestry planning.