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tumultuous storm
typhoon is described as a
false
true or false? A typhoon is a large storm system that moves in a spiral or
circular motion producing weak
winds within hundreds of kilometers or
miles in diameter.
low atmospheric pressure
Usually, the wind moves around a region of
western part of the South Pacific Ocean known as the North-Western Pacific Basin
Meteorologist also illustrates typhoons as
a mature tropical cyclone that develops
in the
1/3
Almost? of the world’s yearly
tropical cyclone originates in this basin
making it the most active tropical cyclone
basin on Earth.
north-western pacific basin
most active tropical cyclone basin
Hurricane
A virulent storm
originating from the Atlantic
Ocean and Eastern Pacific
Tropical Cyclone
originates in the Indian Ocean
tipon
In 1550, it is described as a violent storm
whirlwind
greek word based
from a character personified as a giant,
father of the winds
cyclone
recorded during a voyage of Caesar
Frederick to the East Indies
tai fung
Chinese word
describing a “great wind”
toofan
indian word pertaining
to “big storm.
tufan
Arabic word,
Persian and Hindi term meaning “big
cyclonic storm”.
Typhoon as...
bagyo
Filipinos refer to it as
willie-willie
Australians refer to it as
tornado
south Americans typhoon refer to it as
severe cyclonic storm
is the term
used for strong winds coming from
Southeast and Southwest Indian
Ocean and Southwest Pacific Ocean
typhoon
is the term used in
Northwest Pacific Ocean
hurricane
is the term used in
South Pacific Ocean and North Atlantic
Ocean
severe cyclonic storm
is the term used in North Indian Ocean
12-20
The Philippines experienced “bagyo” how many times annually.
typhoon
accompanied by strong
winds, heavy rains and large ocean waves
false
true or false? A typhoon’s wind circulation revolves to the
left of the Southern Hemisphere and to
the right in the Northern Hemisphere
PAGASA
The country’s premier agency for
meteorological and hydrological hazards
Philippine Atmospheric Geophysical & Astronomical Services Administration
PAGASA?
1963
PAGASA has independently named tropical
c y c l o n e s e n t e r i n g P h i l i p p i n e A r e a o f
Responsibility (PAR) since
alphabetical
Following the
A m e r i c a n t ra d i t i o n of n a m i n g ty p h o o n in
what order?
2000
PAGASA had traditional utilized female name ending in “ng” until early ? when they started using male’ snames.
tropical depression
less than or equal to 61 kph
tropical storm
62 to 88 kph
severe tropical storm
89-117 kph
typhoon
118 to 220 kph
super typhoon
more than 220 kph
eye
center part
which has the lowest pressure
eye
There is
definite stillness of light wind about 20 kph
eye
I t g e n e r a t e s a p a r t l y c l o u d y c l e a r s k y
alternating with thin clouds of 30 km average
diameter.
eyewall
arrange band of clouds in the
eye of a storm
eyewall
It is the area with most
turbulent winds
eyewall
Meteorologists expect its typhoon force wind
to be more than 118 kph
eyewall
average of 8-40 km and strongest precipitate
inner rainbands
organized winds that move
inwardly or s p i r a l l y t o w a r d s t h e c e n t e r
63 to 117 kph
inner rainbands generate an occasional precipitate with winds
up to
90%
inner rainbands is characterized by atleast how many percent?
sky coverage with soaring or far above the ground
clouds
outer rainbands
dispersed outer spiral
winds that move inwardly
62 kph
outer rainbands generate a placid to
judicious rainfall with winds up to
50%
Sunlight is still
evident with atleast how many percent? cloud coverage.
okta
The amount of cloud coverage at any given area
0-8
range of okta
thunderstorm
A type of storm illustrated by
the occurrence of lightning and
its acoustic effect on the Earth’s
a t m o s p h e r e
lightning storm, electrical storm, and thundershowers
thunderstorm is also known as
thunderstorm
It is typically exemplified with
heavy rains accompanied with
thunder
true
True or False? Given that thunder is a result
of lightning, all thunderstorms
have lightning.
cumulonimbus clouds
Thunderstorms happen commonly
with the
archetypal thunderstorm
15 miles in diameter and last for about 30 minutes.
Cumulus stage
The initial stage in thunderstorm is identified as
cumulus stage
The warm air increases and
wa t e r va p o r c o n c e n t ra t e s t o a
towering cumulus clouds which could
ascend a height of 8-10 km.
maturing stage
the second stage in thunderstorms is called
maturing stage
It is where clouds can generate
heavy rains, relentless lightning,
strong and gusty winds, hail and
sometimes tornadoes. It is at
this stage where thunderstorm is
at its strongest.
falseee
true or false? the maturing stage is the stage where thunderstorms is at its weakest
dissipating stage
is when precipitation decreases
its intensity and clouds begin to
dissipate. Some thunderstorm
produces a burst of strong winds
and lightning lingers risk during
this stage
flood
These hyrometeorological hazards
are capable of generating large
amount of precipitation that pour to
t h e h e av i l y c l o g ge d s e we ra ge
systems of the metropolis causing
the unnecessary water surplus
flood
b a s i c a l l y m e a n s a n
overf lowing of water from streams
and other bodies of water or an
accumulation of rainwater in low-
lying areas
flood
transitory pour out of
a normally waterless area due to
s pill over of a body of water,
remarkable build up, run off of
surface waters or atypical erosion
or destabilization of shoreline
flood
can also be overflow of
mud f low caused by a buildup of
water underground.
heavy and extended rainfall
Hydrometeorological
disturbances such as tropical cyclones, low pressure areas,
inter tropical convergence zone, cold fronts and monsoons
could lead to heavy floodings.
storm surge
It can generate elevation of ocean level to
ground height to several feet and flood nearby low-lying
coastal communities.
high tide
that coincides with high stream flows can
aggravate flooding near the coast.
infrastructure and coastal development
It increases the resistance of
ground surfaces due to concrete roads and loss its ability to soak up f lood waters
and may result to flash flooding
infrastructure and coastal development
It increases the resistance of
ground surfaces due to concrete roads and loss its ability to soak up f lood waters
and may result to flash flooding
blasting
generates landslides in the slopes of hills and mountains and may
result to unintended damning of rivers and streams
blasting
generates landslides in the slopes of hills and mountains and may
result to unintended damning of rivers and streams
deforestation
decreases the permeation capacity and speed of the flood flows
failure of levees and dams
can produce the worst f lood events by releasing
large quantities of water.
minor flooding
flooding that may or may not be cause by
overbanking. It could be simply due to build up of unwarranted
surface overflow water in f lat low-lying areas. Flood water is usually
confined along riverbeds and low-lying areas of the metropolis
major flooding
flooding is a result of overflowing rivers and lakes;
serious damage from major water reservoir likes dams, dikes or levees;
Flood waters affects many neighborhood and stretch rapidly to adjacent
shoreline of comparatively lower elevation. There is a persistent water
current in some areas particularly seem in deep flooding
flash floods
Normally floods take about 12 to 24 hours or longer
to develop after an intense downpour. But there is a
particular type which develops in less than 6 hours
commonly termed as
flash flood
build up in areas with steep slopes of
rivers.
storm surge
During a tropical cyclone it is common for
ocean waves to be pushed towards the shore
by the force of the wind and the intense
pressure of a heavy down pour.
daluyong ng bagyo
storm surge or?
storm surge
unusual ascend of water during a typhoon, over and
above the calculated high wave
storm tide
elevation of water level during a typhoon caused by
both high tide and storm surge
coastal flooding
is a direct result of storm
surge
3-6 hrs
Storm surges can set off flooding coastal areas
20
A Super Typhoon can spawn a storm
surge elevation of more than __ feet
above sea level
wind/pressure effect
Winds is directly proportional
to storm surge and inversely proportional to atmospheric
pressure.
rainfall effect
Heavy precipitation caused by
typhoons increase the total surge height near the coast.
tidal effect
If the storm surge coincides with the
occurrence of astronomical tide, surge height will be higher
shape of the coastline
The gentler is the slope, the
higher is the surge in the coastal areas
El Nino
Phenomenon is the extreme warming
of sea surface that develops in the Pacific Ocean
El nino
causes heavy rains in some parts of
the world and drought in other parts
Little Child/Boy Child
El Niño, a Spanish term meaning
El Nino
It was the term used by Peruvian fishermen in
describing the warm ocean current f lowing
along its coast around Christmas season
2-9 years
El Nino occurs in the Pacific bowl every
La Nina
linked to a change in atmospheric
pressure known as Southern Oscillation
La Nina
Little Girl
El Viejo or Old man
La Nina is recognized in some Spanish countries as?
La Nina
bizarrely
freezing ocean temperatures increasing rainfall over the
western half of Pacific Ocean
Note 
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