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How cyclones form - Winds, Storms & Cyclones Video Lecture - Class 7
FAQs on How cyclones form - Winds, Storms & Cyclones Video Lecture - Class 7
| 1. How do cyclones form? |  |
Ans. Cyclones form when warm, moist air over the ocean rises and creates an area of low pressure. As the air rises, it cools and condenses, forming clouds and releasing heat. This process continues, creating a spiral of strong winds around the center of low pressure, known as the eye of the cyclone.
| 2. What are the main factors that contribute to cyclone formation? | |
Ans. The main factors that contribute to cyclone formation are warm ocean temperatures, high humidity, and a disturbance or low-pressure system. Warm water provides the necessary energy for the cyclone to intensify, while high humidity ensures sufficient moisture for cloud formation. A disturbance or low-pressure system acts as a trigger for the cyclone's formation.
| 3. How do cyclones differ from other types of storms? | |
Ans. Cyclones differ from other types of storms, such as thunderstorms or tornadoes, in terms of their size and duration. Cyclones are large-scale weather systems that can span hundreds of kilometers and last for several days. They are characterized by a well-defined center of low pressure and rotating winds, whereas thunderstorms and tornadoes are smaller and more localized in nature.
| 4. Are all cyclones destructive? | |
Ans. Not all cyclones are destructive. Cyclones are categorized based on their intensity using different scales, such as the Saffir-Simpson Hurricane Wind Scale. While intense cyclones can cause significant damage due to strong winds, storm surges, and heavy rainfall, weaker cyclones may have less impact. It is important to note that proper preparedness and timely warnings can help minimize the potential damage caused by cyclones.
| 5. Can cyclones be predicted accurately? | |
Ans. Predicting the exact path and intensity of a cyclone is a complex task, but meteorologists have made significant advancements in cyclone prediction. Various tools and models, including satellite imagery, computer simulations, and historical data, are used to forecast the movement and strength of cyclones. However, uncertainties still exist, especially when it comes to the precise timing and impact of a cyclone. Continuous monitoring and improvements in forecasting techniques contribute to better preparedness and response to cyclones.
Text Transcript from Video
most of Bangladesh is less than 15
meters above sea level
it's very vulnerable to flooding also
tropical storms forming over the Bay of
Bengal tend to be funneled towards
Bangladesh this is the path of the
cyclone which devastated the East Coast
in 1991 tropical cyclones form over
water warmer than 27 degree centigrade
very damp hot air rises rapidly from the
surface of the sea on meeting cold air
high in the atmosphere it condenses to
form clouds and rain the condensation
also releases huge amounts of energy
producing strong winds
these winds driven by the spin of the
earth twist round and round they sucked
violently upwards rotating in a vortex
that may be a thousand kilometres across
towards the middle the winds are
ferociously strong reaching 200 km/h but
the very center of the vortex is quite
calm this is the eye of the storm
coastal areas and islands are worst hit
because cyclones are fueled by damp air
when they hit the coast they start
sucking up dry air and begin losing
their power
meters above sea level
it's very vulnerable to flooding also
tropical storms forming over the Bay of
Bengal tend to be funneled towards
Bangladesh this is the path of the
cyclone which devastated the East Coast
in 1991 tropical cyclones form over
water warmer than 27 degree centigrade
very damp hot air rises rapidly from the
surface of the sea on meeting cold air
high in the atmosphere it condenses to
form clouds and rain the condensation
also releases huge amounts of energy
producing strong winds
these winds driven by the spin of the
earth twist round and round they sucked
violently upwards rotating in a vortex
that may be a thousand kilometres across
towards the middle the winds are
ferociously strong reaching 200 km/h but
the very center of the vortex is quite
calm this is the eye of the storm
coastal areas and islands are worst hit
because cyclones are fueled by damp air
when they hit the coast they start
sucking up dry air and begin losing
their power
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Oct 12, 2025
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