Geography Exam- Weather Hazards

How does global atmospheric circulation lead to high and low pressure belts?
By the atmospheric pressure being lower or higher than the surrounding area.
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Describe the distribution of tropical storms.
They always form over warm oceans (above 27 degrees), and form in Summer and Autumn when sea temperatures are at their highest.
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What conditions are required for a tropical storm to develop?
Ocean waters need to be above 27 degrees.
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In what direction does a tropical storm move?Which way does it rotate?
They form 5-15 degrees north and south of the equator (so form between Tropics of Cancer and Capricorn). They rotate clockwise.
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What can cause a tropical storm to lose strength?
Moving over land and loss of any water supply.
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Describe two characteristics of the eye of a tropical storm:
1)Calm weather here. 2)Cold air sinks towards the ground and warms up.
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How might climate change affect tropical storms?
If the climate becomes warmer, there are likely to be more tropical storms each year.
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Describe four primary effects of tropical storms:
1)High winds. 2)Torrential rain. 3)Waterspouts. 4)Tornadoes.
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Describe four secondary effects of tropical storms:
1)Flooding-causing landslides and blocked roads. 2)Power supplies are cut off for a long period-no way of communication. 3)Shortages of water, food and shelter-affecting many people and leading to outbreaks of disease.4)Many jobs lost-buildings gone.
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List the types of extreme weather that can be experienced in the UK:
Thunderstorms,Prolonged rainfall,Drought and extreme heat,Heavy snow and extreme cold, and strong winds.
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Give one piece of evidence for the weather becoming more extreme in the UK.
News report in February 2014, stating that 'strong winds bring chaos to UK'. It said that there was a widespread disruption to road and rail networks, leaving 21,000 people without power, as strong winds continued to batter the UK.
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Give an example of one extreme UK weather event and explain what caused it.
Thunderstorms-July 2014, electrical storms resulted in 3000 lightning strikes across Southern Britain, followed by hot weather. Torrential rainfall associated with thunderstorms, result in sudden 'flash' flooding.
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Other cards in this set

Card 2

Front

Describe the distribution of tropical storms.

Back

They always form over warm oceans (above 27 degrees), and form in Summer and Autumn when sea temperatures are at their highest.

Card 3

Front

What conditions are required for a tropical storm to develop?

Back

Preview of the front of card 3

Card 4

Front

In what direction does a tropical storm move?Which way does it rotate?

Back

Preview of the front of card 4

Card 5

Front

What can cause a tropical storm to lose strength?

Back

Preview of the front of card 5
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