Q4 Lesson 2 Flashcards
It is a process or phenomenon of atmospheric, hydrological, or oceanographic nature that may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage.
HYDROMETEOROLOGICAL HAZARDS
- associated with having no rain, hence the fear or drought and consequently dried-ups and low water levels in dams and reservoirs for domestic, agricultural, and industrial uses.
- translates from Spanish as “the boy-child”
El niño
• associated with heavy rainfall and hazards such as flood.
• translates as “girl-child”
La niña
- It is an intense low-pressure system with a minimum sustained wind
velocity of 35 kilometers per hour. - It has an eye, the area where
the wind is light and calm and there is no rain, also an eye wall
where the precipitation is heaviest and the wind is strongest.
Tropical Cyclones
The Philippine Atmospheric, Geophysical, and Astronomical Services
Administration (PAGASA) is the official source of information about tropical cyclones even before it enters the PAR.
Not included
Categories of Tropical Cyclones
They usually affect low-lying and coastal areas. This is due to the overflowing of water from lakes, streams, and other bodies of water
FLOODS
Types of Floods
- River Flood
- Flash Flood
- Coastal Flood
Caused by the overflowing of rivers when the run-off exceeds the capacity of the channels.
River Flood
Caused by a very short period of unusually heavy rainfall
Flash Flood
Occurs when strong onshore winds push the water inland
Coastal Flood
Red Warning
Evacuation
Orange Warning
ALERT for possible evacuation
Yellow Warning
MONITOR weather conditions
It is a sudden rise of sea level above the normal level on the coast due to a drop in atmospheric pressure and the force of the wind as a tropical cyclone approaches the coast.
STORM SURGE
It is a localized storm cloud that produces lightning and thunder, and often brings heavy rain shower or hail as well as strong gusty winds.
THUNDERSTORM
This is the most dangerous hazard associated with thunderstorm, is a visible electrical discharge due to high voltage differences that build up within the clouds, between the clouds, and the ground
LIGHTNING
These are ice crystals falling from a thunderstorm. It is therefore not very
dangerous but they can destroy crops.
HAILSTONES
• It is localized windstorm characterized by a visible funnel-shaped, rapidly
whirling cloud extending downward from the base of dark cumulonimbus
cloud.
• In the Philippines, it is called buhawi or ipo-ipo.
TORNADO
When a tornado occurs or moves over a body of water, this is called …
WATERSPOUT
It is the lack of rainfall for normal needs. Because of the deficiency of rainfall for a long period, the soil moisture is reduced below the minimum necessary to sustain plants, animals, and humans.
DROUGHT
5 Types of drought
- METEOROLOGICAL
- HYDROLOGICAL
- AGRICULTURAL
- ECOLOGICAL
- SOCIOECONOMIC
Drought refers to an extended period of dry weather patterns.
METEOROLOGICAL
Drought refers to low water supply in our rivers, lakes, aquifers, and other reservoirs that often follows meteorological drought
HYDROLOGICAL
Drought occurs when a water shortage
significantly damages or destroys agricultural crops.
AGRICULTURAL
