The main ingredients in the recipe for the development of a hurricane are warm water, warm air and wind. As the warm water condenses in large gusts of wind, the water vapor rises and cools to form cumulonimbus clouds, the beginning stage of a hurricane.Know More
Hurricanes generally form within 20 degrees either north or south of the equator, excluding the 5 degrees closest to the equator, because ocean temperatures less than 165 feet below the surface are at least 80 degrees Fahrenheit. When the water condenses and rises, it releases heat into the surrounding air. That air then also rises and is pulled into the cloud. As this process repeats, the air begins to pinwheel around, giving the hurricane its circular shape.
The first stage of a hurricane is called a tropical disturbance and occurs when this pinwheel joins with other clouds. The next stage, called a tropical depression, continues as increased air pressure at the top of the clouds causes the air pressure on the surface to drop. The storm becomes known as a tropical storm when the sustained winds exceed 39 mph. It becomes known as a tropical cyclone, another name for a hurricane or typhoon, when sustained wind speeds are 74 mph or above.Learn more about Storms
The parts of a hurricane are called the eye, the eye wall and the rain bands. The eye is at the center of the hurricane and usually measures between 20 to 40 miles. The eye wall surrounds the eye, stretching 5 to 30 miles in width. The rain bands form the spiraling portion of the hurricane and can be dozens or hundreds of miles wide.Full Answer >
The Great Hurricane of 1780 killed approximately 22,000 people when it struck several Caribbean islands, making it the worst on record. Although records from the time are poor, it is believed to have first made landfall on October 10 in Barbados before tearing through other islands in the eastern Caribbean.Full Answer >
Signs of a hurricane begin about 36 hours before landfall and include changes in wind patterns, cloud cover and precipitation. As the storm approaches, the intensity of these changes increases. Meteorologists are aware of these occurrences and emit public warnings when they begin.Full Answer >
According to the National Oceanic and Atmospheric Administration, a hurricane is an organized thunderstorm that occurs over water and has sustained winds that reach maximum speeds over 74 miles per hour. These storms originate over the Atlantic Basin, which includes the Atlantic Ocean, Gulf of Mexico and Caribbean Sea. When they reach land, they often cause structural damage and flooding.Full Answer >