A look at the dangers and effects of floods and hurricanes

The health concerns that floodwater can bring include physical and mental challenges.

A look at the dangers and effects of floods and hurricanes

July 08 Tornadoes also are an effect of hurricanes. Rainfall-Induced Flooding The heavy rains associated with a tropical weather system are responsible not only for major flooding in areas where the storm initially strikes, but also can affect areas hundreds of miles from where the storm originally made landfall.

During landfall, it is not uncommon for inches of rain to fall. If the storm is large and moving slowly, rainfall could be even more excessive. As the storm moves inland, and is downgraded to a tropical depression, the continued circulation, tropical moisture, and topography can contribute to copious amounts of rainfall.

Intense flooding also can occur from tropical depressions and storms that do not reach hurricane strength.

Harvey hits outside the floodplain

Storm Surge Storm surge is a rapid rise in the level of water that moves onto land as the eye of the storm makes landfall. Generally speaking, the stronger the hurricane, the greater the storm surge.

As a hurricane approaches the coast, its winds drive water toward the shore. Once the edge of the storm reaches the shallow waters of the continental shelf, water piles up.

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Winds of hurricane strength force the water onto shore. At first, the water level climbs slowly, but as the eye of the storm approaches, water rises rapidly.

A look at the dangers and effects of floods and hurricanes

Wave after wave hits the coast as tons of moving water hammer away at any structure on the coastline. A cubic yard of water weighs about 1, pounds.

The storm surge is also greater if the storm affects a bay or if it makes landfall at high tide. The greatest storm surge occurs to the right of where the eye makes landfall. Winds The winds of a hurricane range from 74 mph 65 knots in a minimal storm to greater than mph knots in a catastrophic one.

Accurate readings of high wind gusts during landfall are difficult to obtain because anemometers wind-speed measuring devices at reporting stations can be ripped from their foundations. Wind is responsible for much of the structural damage caused by hurricanes. High winds uproot trees and tear down power lines.

The maximum winds from fast moving and powerful storms may remain high, even when the storm is well inland. Often this is actual wind speed combined with the speed of the storm. Tornadoes Tropical cyclones also can trigger tornadoes. Each storm has a unique pattern of tornadoes whose frequency and occurrence is highly variable from one storm to the next.

Tornadoes spawned from hurricanes are more likely during an intense hurricane or one that is intensifying at or near landfall.Dangers and Destructions of Floods and Hurricanes Floods and hurricanes have been effecting the lives of people around the world for years.

Aug 27,  · Even after a hurricane's immediate threat of flooding goes away, residents can face a host of health problems from the water and from what it leaves behind. Aug 27,  · Even after Hurricane Harvey's immediate threat of flooding goes away, Texas residents will face a host of health problems from the water and from what it . The storm is predicted to bring heavy, possibly catastrophic, flooding to inland parts of North Carolina, Hurricane Florence expected to cause dangerous inland flooding.

This research paper is going to state some of the worst floods and hurricanes, and how future ones can be controlled. A natural hazard is a threat of a naturally occurring event will have a negative effect on humans.

This negative effect is what we call a natural disaster. In other words when the hazardous threat actually happens and harms humans, we call the event a natural disaster. Hurricane Ivan flooding, Asheville, NC - September /Leif Skoogfors, FEMA hurricane intensity - courtesy of The COMET Program.

A look at the dangers and effects of floods and hurricanes

High Winds. Tropical storm-force winds are strong enough to be dangerous to those caught in them. Hurricanes and tropical storms can also produce tornadoes. These tornadoes most often occur in .

Beneath the surface of the giant, swirling tropical cyclones known as hurricanes lie five factors that generate the biggest threats. These include storm surge, inland flooding. Hurricanes follow the path of least resistance, which is why they travel west across the Atlantic and also why hurricanes rarely hit the West Coast of the United States.

Hurricanes – Understand the Dangers. Recognize that there are five distinct dangers associated with hurricanes: 1.

- The Washington Post More Articles September 12, Blizzards, tornados, and floods are terrible natural disastersbut hurricane damage is far worse.
Natural Disasters & Assessing Hazards and Risk The above photo shows debris-filled floodwater in Texas after Hurricane Harvey tore through; you can see car parts, broken wood planks and various containers in the water. Sewage where it shouldn't be Sewage water overflows from a sewage system Photo:
Sewage where it shouldn't be In fact, flooding is the major threat from tropical cyclones for people living inland.

Storm surge: the rising surge of can lead to severe coastal flooding. 2. Marine hazards: dangers to those at sea.

3. Tornadoes: more than 50% of hurricanes spawn tornadoes, usually from the right-front quadrant. 4. High winds.

Hurricane Preparedness - Hazards