Tropical cyclones form when ambient atmospheric conditions are ripe for storm development, which includes warm ocean waters, moist mid-tropospheric layers, proximity to the equator and the presence of a pre-existing atmospheric disturbance. Humidity, adequate ocean water temperatures and strong winds all help to make cyclones form, but these elements must converge to allow storms to take shape. After forming, cyclones develop an organized inner core, which is surrounded by a circular mass that spins.Know More
One of the key elements to the formation of cyclones is the right temperature of surrounding waters. Water temperatures must be at least 80 degrees Fahrenheit for cyclones to take shape, and that temperature must usually remain constant 150 feet below the surface of the water. In addition to warm ocean waters, cyclones need ideal atmospheric conditions from the skies above. Atmospheres must cool quickly and be slightly unstable, which allows for the formation of thunderstorms. Cyclones cannot form without sufficient amounts of moisture in the mid-tropospheric layer, as moisture is essential for the formation of thunderstorms.
Cyclones must also be situated proximately to the equator, with a distance no greater than 300 miles from the equator line. Within this area, the Coriolis force can take effect by allowing wind balance to occur that, in turn, helps cyclones maintain a low pressure.Learn more about Storms
Cyclones come in four types: tropical disturbances, tropical depressions, tropical storms and hurricanes. Cyclones are classified according to their size and strength; wind speed is the primary differentiating factor. These storms form in the tropics, and they may arise in the Northern and Southern hemisphere alike.Full Answer >
According to Geoscience Australia, the main source for the generation of a tropical cyclone is the abundance of warm water and favorable wind patterns that can persist for several days as the cyclone develops. Encyclopedia Britannica explains that warm, moisture-saturated air continues to rise through the center of the circulation as long as the air surrounding the core is cooler and heavier. The continuous vertical movement allows clouds to develop.Full Answer >
Cyclones, which are storms that rotate around a central low-pressure area, occur when high-pressure cold air fronts slide on top of low-pressure warm air fronts. When the warm air rises, cold air on all sides drops, and spinning occurs due to the Coriolis effect.Full Answer >
When a hurricane hits land, it starts to lose speed and energy as it loses its source of both from the warm ocean waters. The further the hurricane gets over land, the faster the storm dissipates.Full Answer >