Warm water evaporates , rising to the atmosphere, forming. When enough heavy clouds form, it falls back to the surface as rain.

In the warm , open seas just off the equator, the water is considerably warmer, so is the air. The airs helps the aslo- warm water evaporate faster; and this hot , moist mass of air would go up, following the basic tenet that “warm air goes up, cool air goes down”

Up in the air , the water vapor cools down and condenses, and the heat is released back to the air; this heat makes the air lighter, making it move further up. It then triggers air from outside the system to go inward , then upward , towards the system. This air flow helps more water to evaporate, joining the clouds and precipitation already massing up in the air.

If the process continues , energy and precipitation accumulate further, and the winds speed up. Once the winds reach a certain speed , it then becomes a tropical cyclone.

The movement of the earth also affects this process: the wind , instead of moving in straight lines, moves in a spiral pattern due to the so-called Coriolis effect. If conditions are favorable, the tropical cyclone will continue to accumulate energy and precipitation , making the system stronger and more destructive.


5 Problems which are experienced in the Philippines are :

Warm ocean waters because it is located just above the equator , the Philippines faces the western pacific without much else in the way to take force of storms before they make landfall.

Coastal Homes Since a lot of people live on low-lying coastal islands in the philippines , with more than 60% of the population living in coastal zones or areas.

Deforestation , remember in the past typhoons , mudslides have killed many storm survivors in the philippines. Hillsides denuded of trees have fewer roots to hold them together , which can lead to mudslides when they are hit by sudden huge outbursts of rain.

Ring of Fire on top of everything else, the Philippines rests on the pacific’s earthquake and volcano Ring of Fire. Driven by the pacific’s Ocean’s crust diving underneath the continents , the result is earthquakes and tsunamis striking the Philippines with regularity. A magnitude 7.2 earthquake last month killed 222 people.

Underdevelopment , the poor population of the Philippines has increasingly shifted to coastal regions, where rapidly constructed housing and inadequate evacuation plans may have played a role in the Yolanda disaster.

Philippine Area of Responsibility(PAR) is the smallest innermost monitoring domain , whose boundary is closest to the Philippines islands. The exact dimensions of this domain are the area of the western NOrth Pacific bounded by this domain are the area of the western North Pacifif bounded by imaginary lines connecting the coordinates: 5°N 115°E, 15°N 115°E, 21°N 120°E, 25°N 135°E and 5°N 135°E. The western boundary of PAR is closer to the coastline of the country than the eastern boundary The easterm PAR boundary is several hundred kilometers away from the nearest coastline in the eastern part of the country and completely encloses the East Philippine Sea.

Tropical Cyclone Advisory Domain (TCAD) , This is the “middle domain” located between the PAR and the tropical cyclone information domain. The TCAD completely encloses the PAR but is smaller than the TCID. The TCAD includes the area bounded by the imaginary lines connecting the coordinates: 4°N 114°E, 28°N 114°E, 28°N 145°E and 4°N 145°N. The TCAD does not include the PAR. Tropical cyclones within the TCAD are too far to have any direct effect in the country but are close enough for closer monitoring.

Tropical Cyclone Information Domain (TCID) is the largest and the outermost monitoring domain PAGASA. The TCID is the area enclosed by the imaginary lines connecting the coordinates: 0°N 110°E, 35°N 110°E , 35°N 155°E and 4°N 145°E. The TCID does not include the PAR and the TCAD.

Affect typhoon , based on how strong the energy is released by the landforms and bodies of and gain energy from warm or hot ocean water and lose energy over cold water. Interaction with land will weaken typhoon

Explainer: How tropical cyclones form
Five reasons for nature’s deadly toll in the Philippines
How typhoons form