Cyclones do not always cause flooding. Cyclone Tracy, which hit Darwin, Australia in 1974 ,was a classic example of a cyclone that hit violently causing widespread destruction, yet very little damage was caused by rain or flooding. Often cyclones degrade into tropical depressions when they hit land, and this is what causes the flooding, but there was very little rain associated with Cyclone Tracy compared to other cyclones.
Cyclones primarily cause flood through rain they produce. If an area receives more rainwater than can drain out of it in a given time, flooding will often result. Extratropical cyclones can also cause flooding when snow the produce melts. Tropical cyclones such as hurricanes can drive seawater onto land with their winds, causing coastal flooding.
Cyclones, particularly hurricanes and typhoons, create a bulge on the surface of water with their winds. This storm surge can cause heavy coastal flooding if the storm makes landfall.
Sometimes they can. Cyclones, especially tropical cyclones, can produce torrential rain and heavy flooding. These floods can wash away soil and roads.
Yes, cyclones are wet disasters that bring heavy rainfall and strong winds. The heavy rainfall can lead to flooding, which is a common and significant impact of cyclones. The combination of intense winds and rain can cause extensive damage to infrastructure and natural landscapes.
Not really at all. Except through erosion from rainfall. Extensive rain and flooding may also cause landslides and mudslides, dislodging rocks.
Cyclones are generally more destructive than thunderstorms. Cyclones are intense storms characterized by strong winds, heavy rain, and storm surges that can cause widespread damage and flooding. Thunderstorms, while powerful in their own right, typically do not reach the same level of destruction as cyclones.
Crushing and injuries from ballistic materials cause most of the fatalities. Ballistic materials can include the things accelerated by the violent winds (which can strike people with terrible results), or can include a person becoming a projectile because that individual (or a vehicle with him in it!) was thrown across the countryside.
Damage
The main danger is from flooding. 90% of deaths in tropical cyclones are drownings. A tropical cyclone produces torrential rain that can result in flash flooding. The heavy rain can also cause deadly landslides as it weakens the soil on slopes. Strong tropical cyclones such as hurricanes and typhoons drive seawater onto land in what is called the storm surge, resulting in severe coastal flooding that can sometimes wash away entire communities. Then there is the wind, which can topple trees, tear roofs off buildings, and destroy weaker structures, creating flying debris. Finally, the outer bands of a tropical cyclone can produce severe thunderstorms, and even tornadoes.
Cyclones can cause singificant erosion in coastal areas.
The most destructive cyclones are tropical cyclones, which in various parts of the world are called hurricanes and typhoons. Extratropical cyclones can also be destructive by producing strong winds and flooding. Both can produce severe thunderstorms and tornadoes. Note that while tornadoes are destructive they technically are not cyclones even though they are often referred to as such.
A relation between human activities and cyclones was not confirmed.