“The wind came back with triple fury, and put out the light for the last time. They sat in company with the others in other shanties, their eyes straining against crude walls and their souls asking if He meant to measure their puny might against His. They seemed to be staring at the dark, but their eyes were watching God.” –Zora Neale Hurston

For those persons who live in the state of Florida and surrounding states, the threat of tropical weather during the autumn months is always present. There is therefore a shared culture for these citizens that is defined by this threat, and the impacts that tropical weather will have on their lives (see D’Ambosio, 2001 for discussion of shared culture). Scientists such as the meteorologists whose responsibility it is to study tropical weather use a great deal of observation and application of mathematics in their prediction and analysis. However, students who are a part of the culture of tropical weather experiencers can also benefit from the study of mathematical relationships reflected in tropical weather systems. This lesson addresses how a geometry class can relate the principles of geometry to the phenomenon of tropical cyclones, as these systems impact our lives.