ATMS 120 Lecture Notes - Lecture 3: Rear Flank Downdraft, Enhanced Fujita Scale, Fujita Scale
9 Jul 2015
School
Department
Course
Professor
Document Summary
A major concentration of research in atmospheric sciences is to discover exactly how tornadoes form. There are multiple theories as to the fine-scale processes that lead to tornadogenesis (birth of a tornado) but the one thing that all of these theories have in common is the main point of this next video. As you watch the video, pay close attention to how the conservation of angular momentum plays a key role in tornado formation. watch this video in hd! Tornadoes emerge from within the supercell"s updraft (the mesocyclone). Tornadogenesis originates in the rear flank downdraft (i. e. , hook echo) The rear flank downdraft creates another small vortex on the ground as the air slams into the it occurs on a very small scale beneath the storm. The thunderstorm creates its own micro- environment to create these violent tornadic winds. ground: as this vortex is pulled upward, it is stretched vertically which causes it to spin faster by the.
