Typhoons are cyclonic tropical storms caused by a combination of warm water, evaporation, swirling winds and other factors. Flash flooding caused by intense rains is also a major killer, Emanuel said. Typhoon (hurricanes) are caused mostly by the monsoon trough in six of the seven hurricane / typhoon formation basins of the world. 3. They typically start as smaller more mundane storms, but under the right conditions they may grow into monster coastline-wrecking typhoons. The potential of generating a pressure system increases if this wave spins into a complete circle; with higher pressure on the outside and a low-pressure center. Direct force occurs when a wind gust slams directly into a building or structure and causes physical damage, such as when wind blows the roof off a home. Wind and water account for the two most destructive forces associated with typhoons. The upper air low is cold in nature … Warm Air and Warm Water Make Conditions Right Hurricanes start when warm, moist air from the ocean surface begins to rise rapidly, where it encounters cooler air that causes the warm water vapor to condense and to form storm clouds and drops of rain. Typhoons affect buildings and other structures in two ways: through direct force and through projectiles. All the heat and air flow toward the eye creating the typhoon. It’s not the same bacterium that causes the foodborne illness Salmonella. Another cause of typhoon formation is from the Tropical Upper Tropospheric Trough (TUTT). The heat causes more air to flow to the centre of the storm causing evaporation. Thus the causes are more particular in case of a typhoon. Typhoons occur when a rough weather wave, using the Earth's rotation, begins to rotate (also known as the Coriolis effect). A typhoon needs warm water in abundance. One just happens to be caused by earthquakes (tsunamis), while the other is generated by hurricanes. Its … The thunderstorms convert the moisture into heat. Typhoid is caused by bacteria called Salmonella typhi (S. typhi). Typhoons are basically hurricanes that occur in North West Pacific Ocean thus almost the same conditions cause typhoons but there are certain more rules that must exist before a typhoon can occur.