Tropical Cyclones Part 1 Waterbury, VT, USA / WDEV Vermont Radio Roger Hill's Weather Classroom Sep 16, 2021 | 8:00 AM https://media.blubrry.com/rogerhillsweatherclassroom/ins.blubrry.com/rogerhillsweatherclassroom/RHWC_2021_09_16.mp3 On this episode, Roger talks about the Sapphire Simpson Scale, a way to categorize a storm based on its maximum sustained wind speeds. Anything ranked a category 3 or higher is considered a major hurricane.