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Context

• Typhoon Chaba earlier formed in the central part of the South China Sea and on Saturday afternoon made landfall in Guangdong province in southern China.

 

Details

• Typhoon Chaba was formed over the central and eastern areas of the South China Sea.
• Meteorological authorities forecast strong winds and heavy downpours to lash the western part of the Pearl River Delta.

 

Tropical Storms

• Hurricanes, cyclones and typhoons are all types of tropical storms. But are given different names depending on where they appear.
• Hurricanes are tropical storms that form over the North Atlantic Ocean and Northeast Pacific.
• Cyclones are formed over the South Pacific and Indian Ocean.
• Typhoons are formed over the Northwest Pacific Ocean.

 

     

Favorable Conditions for Tropical Cyclone Formation

• Large sea surface with temperature higher than 27° C,
• Presence of the Coriolis force enough to create a cyclonic vortex,
• Small variations in the vertical wind speed,
• A pre-existing weak low-pressure area or low-level-cyclonic circulation,
• Upper divergence above the sea level system,

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