Up / Down Arrow Keys to control invest chances, or wind speed. The colors and the icons will change depending on chances / windspeed. Left / Right Arrow Keys to control "tropicalness", from "Invest" to "Tropical" to "Post-Tropical".
I modified and animated the icons typically seen in NHC tropical weather outlooks. I've taken them from here: https://hypotheticalhurricanes.fandom.com/wiki/NHC_Tropical_Weather_Outlook_Icons Feel free to use these icons in any hurricane projects. You don't have to credit me, but if you do, credit the NHC as well.