LESSON 3
WEATHER DISTURBANCES
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It is a difference in air and surface temperature that creates a swirling mass of winds.
The Philippines is a common place for weather disturbances since the country is located near the equator where wind convergence occurs.
HOW TROPICAL CYCLONE FORMED?
Depending upon location, tropical cyclones have different names around the world.
HURRICANES
HURRICANES
A tropical cyclone in Atlantic/Eastern Pacific Oceans.
CYCLONES
CYCLONES
A tropical cyclone in Indian Ocean.
TYPHOONS
TYPHOONS
A tropical cyclone in Western Pacific Ocean.
a tropical cyclone with maximum sustained winds of up to 61 kilometer per hour (kph).
a weak low pressure with a definite surface circulation
most common in the equatorial region or the intertropical convergence zone (ITCZ)
a tropical cyclone with maximum wind speed of 62 to 88 kph
when tropical depression intensifies, it becomes a tropical storm
a tropical cyclone with maximum wind speed of 89 to 117 kph
more organized and more circular
a tropical cyclone with maximum wind speed of 118 to 220 kph
most of the time, accompanied by heavy rains and strong winds
a tropical cyclone with maximum wind speed exceeding 220 kph
the strongest tropical cyclone classification created in 2015 after the devastation of Super Typhoon Yolanda.
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