Tropical cyclones, also known as typhoons or hurricanes, are among the most destructive weather phenomena. They are intense circular storms that originate over warm tropical oceans, and have maximum sustained wind speeds exceeding 119 kilometres per hour and heavy rains.
However, the greatest damage to life and property is not from the wind, but from secondary events such as storm surges, flooding, landslides and tornadoes.
Tropical cyclones are referred to by different names depending on where they originate in the world.
From 1998-2017, storms, including tropical cyclones and hurricanes, were second only to earthquakes in terms of fatalities, killing 233 000 people. During this time, storms also affected an estimated 726 million people worldwide, meaning they were injured, made homeless, displaced or evacuated during the emergency phase of the disaster.
Over the past 30 years the proportion of the world’s population living on cyclone-exposed coastlines has increased 192 percent, thus raising the risk of mortality and morbidity in the event of a tropical cyclone.
The health impacts of tropical cyclones depend on the number of people living in low-lying coastal areas in the storm’s direct path, the built environment including building design, and whether there is sufficient time for warning and evacuation.
Tropical cyclones, may directly and indirectly affect health in many ways, for example by:
WHO works with Member States to build resilient and proactive health systems that can anticipate the needs and challenges during emergencies so that they are more likely to reduce risks and respond effectively when needed.
During disasters, such as tropical cyclones, WHO helps to restore primary care services so that facilities can deliver essential services, including immunization, basic treatment for common illnesses, acute malnutrition and maternal care while ensuring the ongoing supply of medications for people living with HIV, tuberculosis or diabetes.
Tropical cyclones, also known as typhoons or hurricanes, are among the most destructive weather phenomena. They are intense circular storms that originate over warm tropical oceans, and have maximum sustained wind speeds exceeding 119 kilometres per hour and heavy rains.
However, the greatest damage to life and property is not from the wind, but from secondary events such as storm surges, flooding, landslides and tornadoes.
Tropical cyclones are referred to by different names depending on where they originate in the world.
