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19 Terms

1
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Which stage of thunderstorm development is dominated by downdrafts?

Dissipating

2
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Complete this statement: 'Air rises, , , forms _.'

cools, condenses, clouds

3
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The slope of a cold front is steeper than that of a warm front. True or False?

True

4
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As a warm front passes, temperature will increase. True or False?

True

5
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Warm fronts are shown on a map as a line with .

semi-circles

6
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Cold fronts are shown on a map as a line with .

triangles

7
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In the southwest US when cT and mT air masses collide it commonly produces __.

dry line

8
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Humid air is than dry air of the same temperature.

less dense

9
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Nor'easters are a type of __.

mid-latitude cyclone

10
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Air density at the surface is largely controlled by and .

temperature; humidity

11
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Microbursts are the result of __.

strong updrafts

12
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The basic cause of lightning is __.

a large charge separation.

13
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For a thunderstorm to be classified as severe the winds must be or have hail .

60 kts; >5 in

14
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Most tornadoes move to the northeast. True or False?

True

15
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The Enhanced Fujita Scale is applied to __.

tornadoes

16
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EF-5 hurricanes are the most common but do the least amount of damage. True or False?

False

17
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What does the term mesocyclone refer to in reference to a tornado?

the area of rotation in a thunderstorm

18
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Most lightning is cloud-ground. True or False?

True

19
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What was so unusual about the 2011 tornado season?

the spring had a record number of tornadoes and fatalities.