Earth Sciences 2240F/G Chapter Notes - Chapter 11: Outflow Boundary, Squall, Cool Air
12 Dec 2017
School
Department
Course
Professor
Document Summary
Unit 3: chapter #11 - cyclonic storms: the smallest cyclonic storm is a thunderstorm and the largest is a hurricane or typhoon. Form when there is: moisture, ultimate sources of moisture for most storms in na are the oceans, gulf of mexico and the great lakes. Life cycle of a thunderstorm: thunderstorms result from the formation of thunderstorm cells that last only about 30 minutes, cumulus clouds grow vertically to about 6km dominant air rushing upward turbulence at the edges towering cumulus stage. More people are killed by lightning then tornado and hurricanes combined. Dissipating stage downward air movement (downdrafts) dominates warm moist air has been cut off, lighter rain and weak winds. Supercell thunderstorms occur when winds are turning clockwise with height and there is a change in direction or speed with height. Gigantic long lasting produce: high winds, hailstones (bigger than a golf ball), flash flooding and most significant tornados in the usa.
