Typhoons Flashcards
Tropical Cyclone
a storm system characterized by
counterclockwise rotating air mass
around a central part called “eye” that has a low pressure area
Hurricane (part of the world)
– formed in the North Atlantic
Ocean
Typhoon (part of the world)
– Northwest Pacific Ocean
Severe tropical cyclone (part of the world)
– Southeastern Indian and Southwest Pacific Oceans
Severe Cyclonic Storm (part of the world)
– North Indian Ocean
Tropical Cyclone (part of the world)
– Southwest Indian
Ocean
Air mass
a large body of air that acquires
the physical characteristics of
the region over which it is moving
Fronts
the boundary
between two air
masses with
different
temperature
Warm Front
when warm air advances over cold air,
Cold Front
when cold air pushes under a
warm air
PAGASA
- Philippine Atmospheric, Geophysical and Astronomical Services Administration
- in charge of observing,
recording, and studying
weather conditions in the
Philippines
How a Tropical Cyclone Develops
- When the wind blows into the ocean in areas where water is warm, it collects moisture then moves up while cold air moves down. This air movement will create pressure causing the wind to move quickliy and be more intense.
Eye
- is the very center of the typhoon. The wind speed is low and generally calm.
Eye Wall
– composed of tall rings of
thunderstorms that produce heavy rains and strong winds. It is the dense clouds surrounding the eye.
Rainbands
– are clouds that move away
from the eyewall spirally. These bands can bring heavy rains and winds.
