Shut circulation. Those with most sustained winds of 39 mph or better are named tropical storms. Each time a storm's optimum sustained winds reach seventy four mph, it is termed a hurricane. The Saffir-Simpson Hurricane Wind Scale is actually a 1 to five score, or category, based on a hurricane's https://gunnery7vw5.theobloggers.com/36976985/not-known-details-about-hurricane