Tropical Life Cycle

Like any normal storm system that could develop and impact us here in the Stateline, tropical systems too have certain stages of development that define what we call them. During hurricane season, in the warm waters of the equator, it is quite frequent for large clusters of thunderstorms to develop in a very compact area. When this takes place it is possible for the life of a tropical system to take place. The first stage in the process is a tropical depression. Depressions are large clusters of thunderstorms with some noticeable rotation with a definite center of low pressure (indicated by a closed isobar on a surface pressure chart). This weak tropical system only has sustained winds between 23-39mph. Given the right conditions a depression can grow to the next stage, a tropical storm. These storms are much more organized and begin to slightly resemble the look and shape of hurricanes. A depression is upgraded to a storm when it reaches wind speeds of 39-73mph, and it this point it is given its offical “name”. The final stage, of course, is the transformation into a hurricane. A tropical storm receives the classification of hurricane once it reaches a wind speed of at least 74mph. At this stage it is wasily recognizable as a hurricane and most develop a definite eye at the center of the rotation of the system. When tropical systems die the then regress to the previous two stages as the storm weakens and loses wind speed. -Greg


Posted under severe weather, tropical weather, weather

This post was written by qni_it on August 29, 2012

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