Hydrometeorological Disasters – Hurricane Katrina and the Big Dry

7203 Words29 Pages
Hydrometeorological disasters – Hurricane Katrina and The Big Dry (20 questions) 1) What are the 3 main threats from hurricanes? Deadly winds The first one is deadly winds. These winds exceed 74 mph and have the capability to completely demolish and buildings, uproot trees and knock over power lines with ease. Tornadoes Tornadoes associated with hurricanes are caused by the numerous squalls and thunderstorms that make up the hurricane or tropical storm. Tornadoes in hurricanes and tropical storms can be difficult to detect and develop with very little warning and may be wrapped in rain making them almost impossible to see. They are more frequent in the outer fringes of the storm but have the potential to develop anywhere. Tornadoes have the capability of causing significant damage to buildings and power poles. Heavy rainfall Rainfall associated with hurricanes and tropical storms can cause significant flooding and damage. Recently, more people have died as a result of inland flooding than any other hazard associated with hurricanes or tropical storms. Rainfall exceeding 15 inches can be expected during hurricanes and tropical storms. Flooding is the leading cause of damage to homes in the United States. Flooding associated with hurricanes and tropical storms can be felt for hundreds of miles inland. 2) How do storm surges increase the likelihood of coastal flooding during a hurricane? Storm surges have been one of the most significant hazards associated with hurricanes. A storm surge is a large volume of ocean water that is driven ashore by a land falling hurricane or tropical storm. Storm surge is a rapid rise in sea level, accompanied by large battering waves. The surge is caused by strong onshore winds forcing the ocean level to rise up and flow inland. Storm surges effect coastal areas as well as canals, rivers, and other low

More about Hydrometeorological Disasters – Hurricane Katrina and the Big Dry

Open Document