- Hurricanes are intense low presure weather systems that build up energy from the temperature of the ocean.
- They form in tropical regions where water temperatures are at least 27 degrees.
- To form, they need low pressure and moist air.
- Trade winds cause the storm to rotate in an anti-clockwise direction.
- Warm air from thunderstorms and the ocean surface begin to rise causing LOW PRESSURE.
- The warm air rises faster and faster, encouraging more warm air to be sucked up into the storm. This also causes cooler, drier air to be sucked down
- As the hurricane moves across the ocean, it picks up more moisture and increases its speed.
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- Strong winds causing structural damage. These wind can also roll cars, blow over trees and erode beaches.
- A sudden change in pressure can cause buildings to explode, or other buildings to be sucked up by the winds.
- biggest hazard is flying debris.
- Heavy raainfall is another effect. Hurricanes can bring large amounts of rainfallin just one day. It can cause inland flooding and can totally devastate large areas..
- Heavy rainfall can also cause mass movements such as landslides, mudslides and debris flows.
- Water seepage into buildings may result in their collapse from the weight of the absorbed water.
- Storm surges can also occur, cuased by prevailing winds pushing a wall of water from the coastline. As a result, this can cause significant inland flooding and beach erosion. The low pressure pushes up the sea surface.
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- Spread of disease.
- Economic damage.
- job loss.
- No transport links.
- Infrastructural damage.
- No clean water.
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- Tracking Hurricanes. The National Hurricane Centre in Floridatracks th development of hurricanes over certain areas.
- Forecasting with special computers.
- Warning is issued when the wids are greater than 74 miles or seas are dangerously high with rough waters.
- Announcements, radio broadcasts and television reports.
- Hurricanes can be predicted for certain times so goves time to prepare.
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