This lesson will help you to understand the concept of typhoon
formation. After going through this lesson, you are expected to explain how
typhoon develops and how it is affected by landmasses and bodies of water
This lesson will help you to understand the concept of typhoon
formation. After going through this lesson, you are expected to explain how
typhoon develops and how it is affected by landmasses and bodies of water
Learning Competencies:
-explain how typhoons develop;
- infer why the Philippines is prone to typhoons;
-explain how landmasses and bodies of water affect typhoons;
Learning Competencies:
-explain how typhoons develop;
- infer why the Philippines is prone to typhoons;
-explain how landmasses and bodies of water affect typhoons;
This presentation encompasses what cyclones (tropical and midlatitude) are and how they form even where they occur. Even though almost all types of cyclones are highlighted in the slide the main focus is on Tropical and Mid-latitude cyclones. This is very helpful when one is searching for specifically the two types of cyclones.
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An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
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2. Weather
• It is the day to day condition of the
atmosphere at a particular time and
place.
• It changes from day to day because the
air in the atmosphere is continuously in
motion.
3. Storms
•Also called cyclones, originate
over warm waters and are
classified according to their
geographical location.
4. Typhoon, Cyclone, and
Hurricane
• A “typhoon” is the term used to describe the same
weather feature as a “cyclone” or a “hurricane”:
• the term Typhoon is used for intense low pressure
weather systems in the northwest Pacific;
• the term Cyclone is used when referring to an
intense low pressure weather system over the Indian
Ocean and the South Pacific; and,
• the term Hurricane is used when referring to an
intense low pressure weather system over the
Atlantic Ocean and northeast Pacific.
20. 1
• Evaporation of water at ocean
surface temperature of 26.5°C or
higher.
21. 2
• Warm, moist air rises upwards
from ocean surface, leaving a low
pressure area near the ocean
surface.
22. 3
• Air from surrounding high pressure areas
rushes towards the low pressure area.
This air is initially dry and cooler, but
near the ocean surface, the air is
heated and carries more water vapor
from continuous evaporation.
23. 4
• As the warm air rises towards the
cooler parts of the upper
atmosphere, it cools off and the
water vapor begins to condense to
form clouds.
24. 5
• More clouds form and wind speed picks
up as the Coriolis effect causes the air
to spiral as it rises. As the winds rotate
faster, the low pressure area near the
ocean surface becomes a tropical
depression, and may eventually turn
into a typhoon
Coriolis effect: The Coriolis Effect describes the
turn of the wind to the right in the Northern
Hemisphere caused by earth's rotation
25. What is the difference between a
tropical storm and a tropical
depression?
• A tropical depression forms when a low
pressure area is accompanied by
thunderstorms that produce a circular wind
flow with maximum sustained winds below 39
mph. An upgrade to a tropical storm occurs
when cyclonic circulation becomes more
organized and maximum sustained winds gust
between 39 mph and 73 mph.
Source:https://pmm.nasa.gov/education/content/what-difference-between-tropical-storm-and-tropical-
depression
28. Air Pressure
• Meteorologists always monitor
barometer readings for extreme
changes in air pressure. If air pressure
drops too low, a strong storm will surely
form, with strong winds and heavy
rains.
29.
30. Convergent Winds
•It is the accumulation of high-
speed winds moving towards a
particular area.
32. 1. It is the day to day condition of the
atmosphere at a particular time.
2. It originates over warm waters and are
classified according to their geographical
location.
3. It is the study of clouds.
4. A type of cloud that is gray at the base and
white on top.
5. A type of cloud that is dark and heavy
6. It measures the speed of wind.
7. It measures air pressure.
8. It shows the direction of the wind.
9. The accumulation of high speed winds
moving towards a particular area.
10.Give one condition for typhoon formation.
33. ANSWER KEY
1. Weather
2. Cyclones
3. Nephology
4. Cumulus
5. Nimbus
6. Anemometer
7. Barometer
8. Wind vane
9. Convergent winds
10.Continuous evaporation and water cycles/ differences
in air pressure/ convergent winds
