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Wind shears are winds in different altitudes moving in different directions

1. Warm, moist air and cool air meet

2. The warm air rises forming dense clouds in the lower atmosphere.

3. Winds shears cause the air between their layers to start rotating forming something like a horizontal tornado

4. Horizontal air meets an updraft.

5. Horizontal air begins to stretch and tilt upwards.

6. The now vertical column of spinning air picks up speed as it tightens forming a tornado.

A. What is a tornado?

B. How do they form?

C. Why was a tornado able to form in the Philippines?

The warm air emitted by the cars and people begins to rise causing the already dense storm clouds of the season to sink lower into the atmosphere. It just so happened that at the height of typhoon Falcon, the already strong winds were enhanced by the southwest monsoon or habagat causing the tornado/es to form in urbanized areas,

According to PAGASA acting administrator Severando, it just so happened that that area had been experiencing strong rain and that the clouds had concentrated in that area. The atmosphere had been very unstable due to Typhoon Falcon and the strong Habagat. In addition to these factors, the urban air had been very warm and moist at the time causing the tornado to form.

Tornadoes: Why in the Philippines?

Body

Introduction

A. Importance of the Study

B. Background of the Study

C. Scope and Limitations

an investigatory project

presented by:

Nadia Patricia Mirelle P. Rodriguez

CN 16 Year IV Sec A

C. Scope and Limitations

A. What is a tornado?

How do tornadoes form?

A. Importance of the Study

This study will investigate the causes of tornadoes, specifically in the Philippines.

General Purpose:

A tornado is a powerful column of winds spiraling around a center of low atmospheric pressure. It looks like a large black funnel hanging down from a storm cloud.

To study the causes behind the phenomenon of tornadoes in the Philippines. To understand what conditions in our atmosphere are causing tornadoes to be more common in the country.

This study aims to explain what a tornado is. Through this study, the researcher aims to shed some light on the topic of the atmospheric conditions behind the formation of tornadoes, specifically the atmospheric conditions in the Philippines at the time of the formation of the said tornadoes.

C. Why was a tornado able to form in the Philippines

Tornadoes are not uncommon in the Philippines. However, they rarely form in urban areas such as Manila and Cebu. Most of the tonadoes in the Philippines form in flat terrains like Mindanao and Central Luzon, including Nueva Ecija and Bulacan.

The air in urban areas, specifically Manila, is very warm and moist due to the exhaust of vehicles and factories, as well as the bodily heat emitted by the people living in the urban areas. The recent tornadoes in the Philippines formed during the rainy season, which contributed to the addition of cool air the moist air in the urban areas.

B. Background of the Study

Although tornadoes have been observed in every continent aside from Antarctica, majority of the tornadoes in the world occur in the United States as well as Australia, Canada, and countries in Europe. Occasionally, tornadoes form in south-central and eastern Asia.

However, contrary to common belief tornadoes are not entirely alien to the Philippines, in fact, an average of 12-24 tornadoes hit the Philippines every year.

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