EARTHSC 2GG3 Chapter 11: CHAPTER 11
29 Dec 2019
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Document Summary
Winds flow into center of updraft (faster movements as wind strength increases) Once winds reach 119 km/h not all air masses can reach center so eye forms. 119 km/h is used to distinguish between a tropical storm and a hurricane. On aug 24 it was a tropical depression but by aug 30 it became a category 3 hurricane. Movement over warm water caused dorian to gain energy. Warmest water over bahamas which was hit hardest. Low pressure zone - counterclock wise - violent winds by the eye but its clear. Air flows upward and counter clockwise (coriolis effect) Warm moist air + weak upper level winds (diverging) Movement of cool air down at the eye, relatively calm conditions. At the edges of the hurricane there are different bands of intense thunder/rain storms then periods of quiet. System is warmest in the center, most violent winds at the eye. Complex energy flows in a hurricane system.
