Thunderstorms | Can’t Sleep? Learn the Science of Storms
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What is the main topic discussed in this episode?
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Welcome to the I can't sleep podcast, where I help you drift off one fact at a time. I'm your host, Benjamin Boster. And today's episode is about thunderstorms.
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A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of lightning and thunder. Relatively weak thunderstorms are sometimes called thunder showers. Thunderstorms occur in cumulonimbus clouds. They are usually accompanied by strong winds, and often produce heavy rain and sometimes snow, sleet, or hail, but some thunderstorms can produce little or no precipitation at all. Thunderstorms may line up in a series or become a rain band known as a squall line. Strong or severe thunderstorms include some of the most dangerous weather phenomena, including large hail, strong winds, and tornadoes. Some of the most persistent severe thunderstorms, known as supercells, rotate, as do cyclones.
While most thunderstorms move with the mean wind flows through the layer of the troposphere that they occupy, Vertical wind shear sometimes causes a deviation in their course at a right angle to the wind shear direction. Thunderstorms result from the rapid upward movement of warm, moist air, sometimes along a front. However, some kind of cloud forcing, whether it is a front, short wave trough, or another system, is needed for the air to rapidly accelerate upward.
What is the overall purpose of this thunderstorm episode and how does it set the mood for listeners?
As the warm, moist air moves upward, it cools, condenses, and forms a cumulonimbus cloud that can reach heights of over twenty kilometers or twelve miles. As the rising air reaches its dew point temperature, water vapor condenses into water droplets or ice, reducing pressure locally within the thunderstorm cell. Any precipitation falls the long distance through the clouds towards the Earth's surface. As the droplets fall, they collide with other droplets and become larger. The falling droplets create a downdraft as it pulls cold air with it, and this cold air spreads out at the earth's surface, occasionally causing strong winds that are commonly associated with thunderstorms. Thunderstorms can form and develop in any geographic location, but most frequently within the mid latitude, where warm, moist air from tropical latitudes collides with cooler air from polar latitudes.
Thunderstorms are responsible for the development and formation of many severe weather phenomena, which can be potentially hazardous. Damage that results from thunderstorms is mainly inflicted by downburst winds, large hailstones, and flash flooding caused by heavy precipitation. Stronger thunderstorm cells are capable of producing tornadoes and water spouts. There are three types of thunderstorms single cell, multi cell, and supercell. Supercell thunderstorms are the strongest and most severe. Mesoscale convective systems formed by favorable vertical wind shear within the tropics and subtropics can be responsible for the development of hurricanes. Dry thunderstorms with no precipitation can cause the outbreak of wildfires from the heat generated from the cloud to ground lightning that accompanies them.
Several means are used to study thunderstorms, weather radar, weather stations, and video photography. Past civilizations held various myths concerning thunderstorms and their development as late as the eighteenth century.
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Chapters
4 chapters
1
What is the main topic discussed in this episode?
0:00–3:14
2
What is the overall purpose of this thunderstorm episode and how does it set the mood for listeners?
3:14–12:02
3
How are thunderstorms defined and what basic characteristics distinguish them from other clouds?
12:02–31:20
4
What atmospheric conditions cause warm, moist air to rise and form a thunderstorm?
31:20–32:52
Speakers
1 identifiedMore from I Can’t Sleep
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