Download Unit 2 Section 7 Reading Guide Climate, Weather, and

Unit 2 Atmosphere
Reading Guide and Notes
Name ____________________________
Date ____________________ Period ___
 Section 7 Climate, Weather, and Storms
75. Define “Climate”. _______________________________________________________
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76. Do weather trends vary or stay the same from year to year? _______________________
Give an example to justify your answer. __________________________________________
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77. State the famous statement which contrasts climate and weather. _________________
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78. How are forecasters able to predict weather trends over time? _____________________
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79. Low-pressure belts at the equator and at 50° to 60° north and south latitudes generate
abundant____________________________. At latitudes around 30° north and south, dry
descending air from high pressure belts produces ____________________ zones that include
Earth's major deserts.
80. Between middle latitudes and the polar regions, a sharp pressure gradient creates
_______________________________ winds flowing from west to east at the boundary area.
81. What do the jet streams transport? _________________________________________
82. What happens when the mid-latitude jet stream dips down from Canada into the United
States during the winter? ____________________________________________________
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83. Hurricanes form over tropical waters (between 8° and 20° latitude) in areas with what (3)
conditions? _______________________________________________________________
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Unit 2 Atmosphere
Reading Guide and Notes
Name ____________________________
Date ____________________ Period ___
84. Number these steps 1 – 6 in the correct order for the formation of a hurricane.
______ air pressure near the top of the storm starts to rise in response to latent heat warming
______ appearance of a tropical disturbance (cluster of thunderstorms)
______ the Coriolis force leads the converging winds into a counterclockwise circulation around
the storm's lowest-pressure area
______ the upper-level area of high pressure acts like a chimney to vent the tropical system
and keeps the air converging at the surface from piling up around the center
______ falling pressure pulls in more air at the surface, which makes more warm air rise and
release latent heat, which further reduces surface pressure.
______ a high-pressure zone makes air diverge (flow outward) around the top of the center of
the system and then it drops to the ground, forming powerful winds
85. What (3) circumstances could weaken or diminish a hurricane? ______________________
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86. What causes most of the stormy weather in the United States, especially during the winter
season? __________________________________________________________________
87. What conditions allow mid-latitude cyclones to occur? ____________________________
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88. What causes a cyclonic system to start to move into a spiral? _______________________
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89. Compare the location of the highest wind velocities between a cyclone and a hurricane.
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