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Primary effects of tropical storms
These are the impacts during the tropical storm caused directly by heavy rain, strong winds and storm surges.
Secondary effects of tropical storms
These are impacts after the tropical storm caused indirectly by heavy rain, strong winds and storm surges.
Torrential Rain
Very heavy rain from towering cumulonimbus clouds.
Lightning strikes
Electrical discharge from the atmosphere to the ground.
Storm surge
A local rise in sea level near the shore that is caused by strong winds from a storm, such as those from a tropical storm.
Hurricane-force winds
Very strong winds because of the differences in pressure.
Flooding
The surge of water over low lying land.
Falling trees and debris
Vegetation that is bent, broken and blown around by the force of the wind.
Water contamination
Impact to supplies of drinking water due to infiltration of salt water, debris or decaying bodies and vegetation.
Sewage contamination
Overwhelmed drains leak waste into water supplies.
Property damage
When the wind and storm surge is powerful enough to damage or destroy homes and buildings.
Power cuts
Winds blow down transmission lines or water gets into transformers.
Homelessness
Property ravaged by natural forces of wind, rain and storm surge which leaves their owners without shelter
Destruction of transport links
When roads, ports, airports and communications are blocked or impassable.