ATMS 120 1st Edition Lecture 18 Outline of Last Lecture I El Ni o II Global winds trade winds III Graph depictions IV The slosh V Southern oscillation VI Link to precipitation VII Anomalies Outline of Current Lecture I Myth vs Fact Current Lecture I This lecture didn t go over any lecture material from Powerpoint slides There were only IClicker questions regarding myths and facts about lightning Lightning always produces thunder FACT Every lightning strike always produces thunder but you can t always hear it Heat lightning is a real form of lightning and does not pose a threat to anyone when it occurs MYTH There is no such thing as heat lightning Seeing lightning without hearing thunder means that the lightning is further away than the sound waves from the thunder could carry Lightning never strikes the same place twice MYTH Lightning can strike tall buildings hundreds of times These buildings are well equipped to handle lightning strikes You have a better chance of winning the MegaMillions lottery than being struck by lightning MYTH Your odds of getting struck by lightning in your life is 1 in 5 000 These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute If you are caught outdoors during an electrical storm one of the safest places to be is in your car FACT The car behaves as a Faraday s cage and protects whatever s inside it Airplanes are also safe from lightning strikes If it is not raining there is no danger from lightning MYTH Lightning can travel up to 30 miles from the cloud they originated in The rubber soles of your shoes will protect you from harm if struck by lightning MYTH People struck by lightning carry an electric charge and should not be touched MYTH They are safe to touch immediately after being struck and should be helped A lightning strike can heat the air to a temperature 5x hotter than the sun s surface FACT A typical lightning strike is 5 km long and 2 3 cm wide FACT It is unsafe to be near appliances or plumbing during a lightning event FACT If you feel your hair stand on end during an electrical storm crouch down low to the ground because you could get struck by lightning FACT Put your feet together and crouch down on the balls of your feet Women are struck by lightning more often than men MYTH Men are 4x more likely to get struck
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