refer to processes or phenomena of atmospheric, hydrological, or oceanographic origin that may cause loss of life, injury, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage
El Niño
is associated with having no rain, hence the fear of drought and consequently dried-up fields and low water levels in dams and reservoirs for domestic, agricultural, and industrial uses
La Niña
is associated with heavy rainfall and hazards such as flood.
the boy-child
The term El Niño translates from Spanish as ________
El Niño
It is now the commonly accepted term to describe the warming of the central and eastern tropical Pacific Ocean.
El Niño-Southern Oscillation
what does ENSO stands for?
TROPICAL CYCLONE
is an intense low-pressure system with a minimum sustained wind velocity of 35 kilometers per hour (kph) in diameter
EYE
This is the area where the wind is light and calm and there is no rain
10 to 100
This is a tropical cyclone that has an eye that is ______ kilometers in diameter and is no rain
eyewall
where the precipitation is heaviest and the wind is strongest.
Spiral rain
-bands surround the eye
Tropical cyclones
_____ especially typhoons, can cause secondary hazards such as floods, storm surges, strong winds, landslides, and mudflows
The Philippine Atmospheric, Geophysical and Astronomical Services Administration
what does PAG ASA stands for?
PAG ASA
is the official source of information about tropical cyclones even before it enters the PAR
PHILIPPINE AREA OF RESPONSIBILITY
what does PAR mean?
tropical depression, tropical storm, severe tropical storm, typhoon, super typhoon
tropical cyclone is classified into five categories which are:
FLOODS
this affects the low lands and coastal areas. this is due to the rising of bodies of water.
man-made and natural
causes of floods
river flood,flash flood,coatal flood
types of floods:
river flood
is caused by the overflowing of rivers when the run-off exceeds the capacity of the channels
flash flood
is caused by a very short period of unusually heavy rainfall.
coastal flood
occurs when strong onshore winds push the water inland.
STORM SURGE
describes as a sudden rise of sea level above the normal level on the coastal due to the drop in atmospheric pressure and the force of the wind as a tropical cyclone approaches the coast
Typhoon Yolanda
a storm surge which hit Tacloban City and other municipalities of Leyte and Samar in 2013.
Wind/pressure effect,Rainfall effect,Tidal effect,Shape of the coastline
causes of storm surge
Thunderstorm
is a localized storm cloud that produces lightning and thunder, and often brings heavy rain shower or hail as well as strong gusty winds.
The typical thunderstorm is 5 kilometers in diameter and lasts an average of 30 minutes, although some may last longer.
a stage wherein the sun heats the Earth's surface, the ground warms the air above it. The warm air rises and water vapor condenses to cumulus clouds.
mature stage
the cloud causes heavy precipitation, severe lightning, strong and gusty winds, hail, and tornadoes at times
dissipating stage
The precipitation decreases its intensity and clouds begin to dissipate.
Thunderstorms can produce dangerous weather conditions such as heavy rains, floods, tornadoes, hailstones, and lightning.
Hailstones are ice crystals falling from a thunderstorm.
Lightning, the most dangerous hazard associated with thunderstorms, is a visible electrical discharge due to high voltage differences that build up within the clouds, between the clouds, and the ground.
The sudden lightning makes sound waves that we hear as thunder
Tornado is a localized windstorm characterized by a visible funnel-shaped, rapidly whirling cloud extending downward from the base of a dark cumulonimbus cloud
tornado is also know as a twister
When a tornado occurs or moves over a body of water, this is called waterspout
drought is the lack of rainfall in normal needs.
It can be attributed to the El Niño phenomenon and the greenhouse effect or the warming of the Earth's surface (CDRC, 1992). With climate change, extreme atmospheric conditions could happen such as prolonged and heavy rainfall or the lack of rain, resulting in drought.