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Meteorology Review Flashcards | StudBud
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Meteorology Review
Meteorology Review
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Answers
1
Why do clouds and short, violent thunderstorms usually form at a cold front?
Cold air contains more water vapor than warm air does
Warm air has to sink, compact, warm and evaporate.
Warm air has to rise, expand, cool and condense very quickly
Cold air contains more dust than warm air does
2
The wind direction at station A is
from the northwest
from the southeast
from the northeast
from the southwest
3
The map below represents an air pressure field. At which two positions is wind speed highest?
A and D
C and A
D and C
C and B
4
Which of these station models have the highest relative humidity?
E
H
G
F
5
How does air circulate within a cyclone (low pressure area) in the Northern Hemisphere?
clockwise and towards the center
clockwise and away from the center
counterclockwise and towards the center
counterclockwise and away from the center
6
What sequence of events causes cloud formation?
sinking -> contracting -> warming -> evaporation
rising -> contracting -> warming -> condensation
rising -> expanding -> warming -> evaporation
rising -> expanding -> cooling -> condensation
7
This cross section of a front is known as...
a cold front
a warm front
a low pressure front
an occluded front
8
If the dry bulb temp is 12
o
C and the wet bulb depression is 5
o
C, what is the relative humidity?
28%
48%
-5%
1%
9
What is the dewpoint temp if the dry bulb temp is 20°C and the wet bulb temp is 12°C?
-10°C
36°C
4°C
11°C
10
What is the current weather?
Rain
Rain
Fog
Hazy
11
Air Mass #2 has a high humidity because it's source region can be described as...
maritime
polar
continental
tropical
12
What is the barometric pressure of station F?
1082.9 mb
976.4 mb
982.9 mb
1076.4
13
_____________ is the process of liquid water turning into vapor and returning to the atmosphere
precipitation
condensation
infiltration
evaporation
14
What type of weather does this front bring?
Long, slow drizzle
Short, violent thunderstorms
Sunny, clear skies
Snow and hail
15
What lettered position is probably receiving precipitation?
C
B
A
D
16
What is the wet bulb temperature when the air temperature is 24
o
C and the dewpoint is 18
o
C?
4oC
14oC
28oC
20oC
17
When isobars are very close together, what weather does that bring?
D- heat index warning
C- high wind advisory
A- dense fog warning
B- air pollution advisory
18
Which diagram best represents a weather station barometric reading of 1013.2 millibars?
C
A
D
B
19
The air temp is 10°C. Which dewpoint temp would result in the
highest
chance of precipitation?
6°C
-10°C
8°C
0°C
20
A temperature of 104°F is equal to a temperature of
40°C
136°C
104°C
72°C
21
Warm, hot air rises because it is...
more dense than cold air
the same density as cold air
less dense than cold air
22
Which of these instruments measures relative humidity?
anemometer
barometer
psychrometer
thermometer
23
Which location is most likely having precipitation?
B
A
C
D
24
You could best describe Air Mass #1 as...
cT
cP
mP
mT
25
Rapidly falling air pressure
predicts what type of weather patterns?
clear, dry weather
temperature decreasing
winds to the northwest
a storm approaching
26
This device measures wind speed:
psychrometer
wind vane
barometer
anemometer
27
A
mT
air mass would most likely originate over which type of Earth surface?
cold and dry
warm and dry
cold and moist
warm and moist
28
Which processes aid in the formation of a cloud?
expanding and cooling
contracting and cooling
contracting and warming
expanding and warming
29
What type of front is about to affect location B?
Occluded Front
Cold front
High pressure front
Warm front
30
What does an anemometer measure?
dewpoint
wind direction
air pressure
wind speed
31
What two places are most likely experiencing precipitation?
A and B
B and D
A and D
C and D
32
Which air pressure system is associated with the counter-clockwise movement of air?
high pressure
red fish
blue fish
low pressure
33
What factor is most directly related to wind velocity?
relative humidity
dew point
cloud type
air pressure gradient
34
What is the wind speed and direction at this location?
SE and 20 knots
NE and 15 knots
NW and 15 knots
SW and 20 knots
35
The map below represents an air pressure field. At which position is wind speed lowest?
D
B
A
C
36
The arrows below represent wind direction. Which weather station has the
lowest
air pressure?
B
C
D
A
37
Which diagram correctly represents the air circulation in a high pressure air mass?
B
D
C
A
38
As warm, moist air moves into a region, barometric pressure readings will generally
decrease
increase
remain the same
39
Which best represents the wind pattern associated with high & low-pressure systems?
C
D
B
A
40
What is the air pressure in mb?
9986.0 mb
998.6 mb
1098.6 mb
10986.0 mb
