Science; Chapter 2 (Understanding Typhoons) Flashcards
What does PAGASA mean?
Philippine Atmospheric, Geophysical and Astronomical Services Adiministration
Being in the tropics, the Philppines is visited by _______ almost every year
Typhoons
These are also referred to as tropical cyclones
Typhoons
These are the classifications of typhoons
Tropical depression, tropical storm, and typhoons based on wind speed
This is a system of thunderstorms moving in a circular direction. As the winds strengthen or weaken, the category is upgraded or downgraded accordingly
Tropical cylcone
These are the three Rainfall warning COLORS
Yellow, orange, red
Theese are the Rainfall warning ICONS
Advisory, alert, and emergency
This Rainfall warning is for community awareness
Yellow (Advisory)
This Rainfall warning is for possible flooding in low-lying areas and near river channels
Yellow (Advisory)
This Rainfall warning is for community preparedness
Orange (Alert)
This Rainfall warning is for the threat of flooding in low-lying areas and nearriver channels
Orange (Alert)
This Rainfall warning is for community response
Red (Emergency)
This Rainfall warning is to expect severe floding, and to take necessary precautionary measures
Red (Emergency)
What are the effects of Tropical Cyclones
Strong winds (Squalls), Tornadoes, Rainfall and Flooding, and Storm Surge
It is also known as strong winds
Squalls
It is where the surface wind increases in magnitude and is maintained over a time interval of several minutes to half an hour
Strong winds (Squalls)
It is the increase in wind speed that may occur abroptly or slowly
Strong winds (Squalls)
These wind changes near land falls can lead to loss of lives and large damage proprties
Strong winds (Squalls)
These are produced by a tropical cyclone characterized by a violent and destructive whirling wind accompanied by a funnel shaped cloud
Tornadoes
A weak _______ has a windspeed of about 64-116 kph
Tornado
It is associated with tropical cyclones and is both beneficial and harmful
Rainfall and Flooding
It can contribute to the water needs of the areas traversed by the tropical cyclone
Rain
It is harmful to the environment when the amount is way too large as to cause flooding
Rains
It is the abnormal rise of water due to tropical cyclones
Storm Surge
It is an oceanic event associated with typhoons
Storm Surge
These are devastating occurrences that happen along coasts with low-lying terrain
Storm Surge
What are the three reasons why the Philippines is Prone to Typhoons?
Geographic location, Philippine Area of Responsibility (PAR), and Number of Typhoons
Where is the Philippines located?
In the Pacific Typhoon Belt, near the equator with warm ocean waters
What is the acronym of PAR?
Philippine Area of Responsibility
What does PAR mean?
It is the region where the Philippines tracks and monitors typhoons
Around __ typhoons enter PAR annually
20
How many landfalls do typhoons make annually?
5-7
What are the two things that can affect Typhoon formation
Landforms and Bodies of Water
These can affect wind directions, and therefore disrupt the spin of a typhoon
Landforms
These are the main factors in the formation of a typhoon
Warm bodies of water
Why is the air in bodies of water warm?
Due to the evaporation of the water
How does bodies of water increase wind speed of a typhoon?
Warm air builds up
Where do typhoons get their energy from?
Warm ocean water
Where do typhoons lose their energy?
Over cold water
When did Typhoon Yolanda hit the Philippines?
2013 (November 8, 2013), in a counter clockwise direction
