Welcome to brain Stuff production of iHeart Radio. Hey brain Stuff, I'm Lauren vocal Baum and today's episode is another classic from our former host, Christian Sagar. Here in the United States, hurricane season is upon us, so today I wanted to bring back a pertinent topic, how are hurricanes categorized? And what do those categories really mean? Hey brain Stuff, it's
Christian Sager here. When hurricane season arrives each year on June one, phrases such as storm surge, wind speed, and eyewall suddenly become part of the summer lexicon in the United States. But probably the most important words to know about a hurricane are those that describe its power, and those include whether it's a Category one or category five. The variance between the strengths of these two storms could
mean the difference between life and death. Now, meteorologists rank hurricanes from one to five based on the Saffer Simpson Scale. The scale is a yard stick that takes into account a hurricane's wind speed, storm surge, and air pressure, and the scale begins with a category one, the least powerful and dangerous hurricane, and then it moves towards its climax at category five, the most catastrophic. As the storm pushes
across the ocean, it gathers speed and strength. Low air pressure forces ocean water into a huge mound near the eye, which could create a devastating storm surge. When the wall of water reaches land. The more heat and moisture hurricane consumes, the more powerful the storm becomes. That's where the Saffer
Simpson scale comes in. The scale was created when Robert H. Simpson was director of the National Hurricane Center in nineteen sixty nine, during the time Hurricane Camille blew through the Caribbean and into the warm waters of the Gulf of Mexico. Its winds were clocked at a hundred and ninety miles per hour or three hundred and six kilometers per hour as it struck Mississippi, and the official death poll from wind storm surge in rain was two hundred and fifty
six people. In nineteen seventy one, Herbert S. Saffer was working as an engineer in Florida preparing a report for the United Nations on building codes that could withstand the onslaught of high speed winds. He eventually came up with a table that outlined the damage to buildings wind can cause at various speeds. He worked up five categories of hurricanes based on damage each one could cause. In nineteen seventy two, Simpson took Saffer's numbers and correlated them with
storm surge estimates and barometric pressure. The result was the Saffer Simpson Scale. By nineteen seventy five, the Saffer Simpson scale was in widespread use. Local, state, and federal officials, not to mention, the public at large now had an easy to read and understand chart that outlined a hurricanes impact. While the Safer Simpson scale is a good measuring tool, it doesn't really tell the full story of a hurricanes impact.
Hurricanes pack a lot of kinetic energy, and as a byproduct, a hurricane's power increases exponentially from one category to the next as wind speed increases. A Category five hurricane, for example, is five hundred times more powerful than a Category one. How does this relate to property damage Compared to a Category one? A Category to hurricane can generate seven times the amount of damage, while a Category five storm can generate a hundred and forty four times the amount of destruction.
Today's episode was written by John Paritano and pretty by Dylan Fagan and Tyler Clang. For more on listen lots of other topics, visit how stuffworks dot com. Brain Stuff is production of I heart Radio. For more podcasts for my heart Radio, visit the i heart Radio app, Apple Podcasts, or wherever you listen to your favorite shows.