LESSON3: WEATHER SYSTEMS

Movement of Air

When air gets warm, it rises. The cooler air will replace the warm air.

Weather

Condition of the atmosphere in an area at a specific time.

Climate

Set of weather conditions for a long period in a region. The climate of the Philippines is tropical and maritime.

Cyclone

Large and violent whirlwinds fueled by water vapor from seas.

Philippine Area of Responsibility

Designated area where PAGASA monitors and names tropical cyclones.

Levels of Cyclone

Tropical Depression, Tropical Storm, Severe Tropical Storm, Typhoon, Super Typhoon based on wind speed.

Breeze

Winds blowing from sea to shore during the day and vice versa at night.

Monsoon

Large-scale seasonal wind patterns causing wet and dry seasons.

ITCZ

Band of clouds causing rains due to winds from Northern and Southern Hemispheres.

El Niño and La Niña

Climate phenomena involving abnormal sea surface temperatures.

Tornado

Funnel-shaped spirals of rapidly rotating wind.

Fujita Scale

Categorizes tornadoes based on wind speed and destruction level.