rich Hurricanes

Hurricanes : 

Hurricanes By Mackynzi Gibson Chase Hamilton

What are they? : 

What are they? A hurricane is a storm system characterized by a large low-pressure center and numerous thunderstorms that produce strong winds and heavy rain. Hurricanes feed on heat released when moist air rises, resulting in condensation of water vapor contained in the moist air. They can last a week or longer

How They Form : 

How They Form Warm ocean waters throughout a sufficient depth Fast cooling atmosphere that is unstable to moist convection Relatively moist layers near the mid-troposphere A minimum distance of 500 km from the equator because Coriolis force is needed An existing surface disturbance with vorticity and convergence is needed Low values of vertical wind shear between the surface and the upper troposphere.

The Eye of a Hurricane : 

The Eye of a Hurricane In the middle of a hurricane there is a small area where the weather is calm, clear and a slight breeze it is called the eye. Once the hurricane strengthens and winds increase an eye is formed. It appears when wind speeds reach around 80 mph. Usually looks circular from above Region of lowest surface pressure and warmest temperatures aloft

The Eye contd… : 

The Eye contd… Surrounding the eye is the eyewall, it is the most violent part of the hurricane. It is an area of dense cumulonimbus clouds This is where the highest winds are found

Category 1 Hurricane : 

Category 1 Hurricane Wind Speeds- 74 to 95 mph Damage- People, livestock, and pets struck by flying or falling debris could be injured or killed. Mobile homes could be destroyed or moved if not anchored down. Major damage to sidings or roofs can be done. Windows in many different types of buildings can be broken. Power lines are damaged and trees are pulled from their root.s. Very much like a tornado.

Continued… : 

Continued… Most Recent- Hurricane Otto October 8th, 2010 Came by the carribean islands and made most damage in the islands Winds at 85 mph Caused flooding and several mudslides 22 million in damages

Category 2 Hurricane : 

Category 2 Hurricane Wind Speeds- 96 to 110 Damage- A substantial risk of injury or death to people, livestock, and pets due to flying and falling debris. The debris can shred a mobile home. The roofing, siding, and windows would be removed. Power loss is expected in many areas for weeks. Water may become scarce due to the failing of filtration systems.

Continued… : 

Continued… Most Recent- Hurricane Paula October 13th, 2010 Impacted the western Caribbean Sea 100 mph wind speeds Had strong winds and intense precipitation causing widespread destruction

Category 3 Hurricane : 

Category 3 Hurricane Wind Speeds- 111 to 130 Damage- There is a high risk of injury or death to people, livestock, and pets due to flying and falling debris. Nearly all mobile homes will be destroyed. Poorly constructed homes can be destroyed by the removal of the roof and exterior walls. Windows will be broken by flying debris. Well-built homes can experience major damage involving the removal of roof decking. There will be a high percentage of roof covering and siding damage to apartment buildings and industrial buildings. Isolated structural damage to wood or steel framing can occur.Numerous windows will be blown out of high-rise buildings resulting in falling glass, which will pose a threat for days to weeks after the storm. Many trees will be snapped or uprooted, blocking numerous roads. Electricity and water will be unavailable for several days to a few weeks after the storm passes.

Continued… : 

Continued… Most Recent- Hurricane Karl September 14th,2010 120 mph wind speeds People died in mainly in Veracruz The most destructive 2010 hurricane Crossed over the Caribbean to the Yucatan Peninsula

Category 4 Hurricane : 

Category 4 Hurricane Wind Speeds- 131 to 155 Damage- There is a very high risk of injury or death to people, livestock, and pets due to flying and falling debris. Nearly all mobile homes will be destroyed. Homes also can sustain severe damage with loss of most of the roof structure and/or some exterior walls. Extensive damage to roof coverings, windows, and doors will occur. Large amounts of windborne debris will be lofted into the air. Windborne debris damage will break most unprotected windows and penetrate some protected windows. There will be a high percentage of structural damage to the top floors of apartment buildings. Steel frames in older industrial buildings can collapse. Most windows will be blown out of high-rise buildings resulting in falling glass, which will pose a threat for days to weeks after the storm. Most trees will be snapped or uprooted and power poles downed. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months . Long-term water shortages will increase human suffering. Most of the area will be uninhabitable for weeks or months.

Continued… : 

Continued… Most Recent- Hurricane Julia September 15th ,2010 In the Atlantic basin Winds up to 140 mph This hurricane did not pose as a threat to much land areas The biggest damage was found in the Cape Verde islands including flooding and damage to crops

Category 5 Hurricane : 

Category 5 Hurricane Wind Speeds- 156 or higher Damage- People, livestock, and pets are at very high risk of injury or death from flying or falling debris, even if indoors in mobile homes or framed homes. Almost complete destruction of all mobile homes will occur. A high percentage of frame homes will be destroyed, with total roof failure and wall collapse. Extensive damage to roof covers, windows, and doors will occur. Large amounts of windborne debris will be lofted into the air. Windborne debris damage will occur to nearly all unprotected windows and many protected windows. A high percentage of industrial buildings and low-rise apartment buildings will be destroyed. Nearly all windows will be blown out of high-rise buildings resulting in falling glass, which will pose a threat for days to weeks after the storm. Nearly all trees will be snapped or uprooted and power poles downed. Fallen trees and power poles will isolate residential areas. Power outages will last for weeks to possibly months. Long-term water shortages will increase human suffering. Most of the area will be uninhabitable for weeks or months.

Continued… : 

Continued… Most Recent- Hurricane Felix September 1st, 2007 Passed through the Windward Islands 175 mph wind speeds Formed a tropical wave

Atlantic Hurricanes : 

Atlantic Hurricanes

Pacific Hurricanes : 

Pacific Hurricanes Hurricanes on the Pacific coasts are named after women’s names

Naming A Hurricane : 

Naming A Hurricane Tropical cyclones are named to provide ease of communication between forecasters and the general public regarding forecasts, watches, and warnings. They are given in alphabetical order as they come up. When they run out of names they will then use the Greek alphabet. In some areas when the lists run out they simply move onto the next one

Contd… : 

Contd… The Northeast Pacific basin tropical cyclones were named using women's names starting in 1959 for storms near Hawaii and in 1960 for the remainder of the Northeast Pacific basin. The Northwest Pacific basin tropical cyclones were given women's names officially starting in 1945 and men's names were also included beginning in 1979.

Hurricane Terms : 

Hurricane Terms TUTT- Tropical Upper Tropospheric Trough Are maintained by subsidence warming near the tropopause which balances radiational cooling. They can force large amounts of vertical wind shear over tropical disturbances and tropical cyclones which may inhibit their strengthening. CDO- Central dense Overcast Is the cirrus cloud shield that results from thunderstorms in the eye of a hurricane

Worst Hurricane : 

Worst Hurricane In America the most remembered and horrifying hurricane was Hurricane Katrina. August 23, 2005 it started to form over the Bahamas. It made the list of The Top 5 Deadliest Hurricanes. The hardest hit was in New Orleans, Louisiana which flooded because their systems failed miserably. 1,836 people lost their lives and much more damage happened. The area is still recovering from this hurricane and probably will be far in the future.

Works Cited : 

Works Cited http://www.windows2universe.org/earth/Atmosphere/hurricane/eye.html http://www.aoml.noaa.gov/hrd/tcfaq/tcfaqHED.html