A storm is a rotating, organized system of clouds and thunderstorms that originates over tropical or subtropical waters and has a closed low-level circulation that rotate counterclockwise in the Northern Hemisphere and its classify in 4 different categories:
- Tropical depression is defined as a tropical cyclone with maximum sustained winds of 38 mph.
- Tropical Storm is a tropical cyclone with maximum sustained winds of 39 to 73 mph.
- Hurricane is a tropical cyclone with maximum sustained winds of 74 mph.
- Major Hurricane is a tropical cyclone with maximum sustained winds of 111 mph or higher, corresponding to a Category 3, 4 or 5 on the Saffir-Simpson Hurricane Wind Scale.
The number of people affected by destructive winds and heavy rains from hurricanes is growing. Hurricanes cause the destruction and collapse of infrastructure, with adverse effects on health in the form of injury, trauma, and drowning.
House damages generates loss of critical services (water, power) and population displacement to shelter can be prolonged for a long period of time. They also have an impact in the mental health of the affected population, and a have a huge effect on health services, causing an increased risk of vector and water-borne diseases.
Due to the vulnerability of the exposed populations, some extreme phenomena such as prolonged rains, can trigger secondary events and generate damages and losses, and affect communities.