TROPICAL CYCLONES

TROPICAL CYCLONES

WHAT ARE TROPICAL CYCLONES?

• Tropical cyclones are violent storms that originate in tropical areas.
• They are low-pressure atmospheric systems of low latitudes.
• It causes violent winds, very heavy rainfall and storm surges.
• The wind blows anti-clockwise in the Northern and clockwise in the Southern Hemisphere.

WHAT ARE FAVORABLE CONDITIONS FOR THE FORMATION?

• Temperature should be higher than 27° C on large sea surface.
• Coriolis force needs to be present.
• Small variations in the speed of vertical wind.
• Low-level-cyclonic circulation
• Upper divergence above the sea level system.

WHAT ARE ITS STAGES OF FORMATION?

• Formation and Initial Development Stage
• Mature Stage
• Modification and Decay

WHAT ARE DIFFERENT NAMES OF TROPICAL CYCLONES?

• Southeast Asia- Typhoons
• Caribbean Sea- Hurricane
• Indian Ocean- Tropical Cyclones
• Northeast coast of Australia- Willy Willy
• Mississippi valley of the USA- Tornado
   

WHAT DESTRUCTION CAUSE BY CYCLONES?

• Strong Winds causes damages to dwellings, communications systems,
• Loss of life and property
• Torrential rains and inland flooding
• Abnormal rise of sea level
• Eroding beaches and embankments