News: Typhoon Goni has made landfall in the eastern Philippines.
- Typhoon Goni: It is a tropical cyclone that recently made landfall as an extremely powerful Category 5–equivalent super typhoon in the Philippines.
- Tropical Cyclone: They are violent storms that originate over oceans in tropical areas and move over to the coastal areas bringing about large-scale destruction caused by violent winds, very heavy rainfall, and storm surges.
- Wind Direction: The winds blow counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
- Different Names: Tropical Cyclones are known by different names in different regions:
- Cyclones in the Indian Ocean
- Hurricanes in Atlantic
- Typhoons in the Western Pacific in the South China Sea
- Willy-Willies in Western Australia.
- Conditions: The conditions favorable for the formation and intensification of tropical cyclones are:
- Large sea surface with a temperature higher than 27° C;
- Presence of the Coriolis force;
- Small variations in the vertical wind speed;
- A pre-existing weak- low-pressure area or low-level-cyclonic circulation and
- Upper divergence above the sea level system.