FLOOD
A flood is an overflow of water that submerges land that is usually dry. Floods are an area of study in the discipline of hydrology. They are the most common and widespread natural severe weather event.
TYPES OF FLOODS
Below are few types of floods and their causes
RIVER FLOOD
A river flood occurs when water levels rise over the top of river banks. This flooding can happen in all river and stream channels. This includes everything from small streams to the world’s largest rivers.
CAUSES
Excessive rain from tropical storm systems making landfall
Persistent thunderstorms over the same area for extended periods
Combined rainfall and snowmelt
COASTAL FLOOD
A coastal flood is the inundation of normally dry land areas along the coast with seawater.
CAUSES
Tropical cyclones
Tsunami
Higher-than-average tides
STORM SURGE
Storm surge is an abnormal rise in water level in coastal areas over and above the regular astronomical tide.
CAUSES
Winds
Waves
Low atmospherics pressure