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WorksheetsCW 4/5: Station Models and RH/DP
Total questions: 89
Worksheet time: 2hrs 0mins
What is the temperature for the following station model?
4 ºF
76 ºF
80 ºF
129 ºF
What is the dewpoint for the following station model?
10 ºF
23 ºF
65 ºF
75 ºF
What is the present weather for the following station model?
rain
thunderstorms
drizzle
fog
What is the amount of precipitation for the following station model?
.15 in
1/4 in
6 in
46 in
What is the visibility for the following station model?
1/2 mi
9 mi
42 mi
59 mi
What is the wind direction for the following station model?
north
east
northwest
northeast
What is the wind speed for the following station model?
10 knots
15 knots
20 knots
25 knots
What is the station model code for a barometric pressure of 1019.5 mb?
101
195
019
119
What is the barometric pressure for the following station model?
987 mb
998.7 mb
1098.7 mb
1098 mb
What is the barometric trend for the following station model?
steady 31 mb drop
steady 31 mb rise
steady 3.1 mb drop
steady 3.1 mb rise
What is the amount of cloud cover for the following station model?
25%
50%
75%
100%
Which weather station shows the highest relative humidity?
1
2
3
4
In which location do you write the temperature?
A
B
C
D
What is the wind direction?
Wind is blowing from the west
Wind is blowing from the south
Wind is blowing from the east
Wind is blowing to the east?
Which city has the greatest temperature?
Niagara Falls
Rochester
Syracuse
What weather condition does this symbol represent?
thunderstorm
fog
sleet
hurricane
What is the present weather?
drizzle
snow
rain
fog
What is the barometric pressure?
24.0 mb
979.0 mb
23.0 mb
997.9 mb
What is the amount of precipitation for the following station model?
.15 in
1/4 in
6 in
46 in
What is the visibility for the following station model?
1/2 mi
9 mi
42 mi
59 mi
What is the amount of cloud cover for the following station model?
25%
50%
75%
100%
What is the temperature?
37 degrees
55 degrees
138 degrees
3 degrees
The difference between wind speed of a category-1 hurricane and the wind speed of a category-5 hurricane is primarily caused by the differences in
types of clouds
amounts of precipitation
air-pressure gradients
air-temperature gradients
Most storms are associated with high winds, heavy precipitation, and
high air pressure
slowly rising air pressure
low air pressure or cyclonic conditions
rapidly rising air pressure
The funnel of a tornado can "vacuum" up materials from Earth because of its extremely
high pressure
high temperature
low pressure
low wind speed
Which way is the wind blowing in this scenario?
from the north
toward the north
from the west
toward the west
Based on the picture, what direction is the wind blowing?
To the east
From the east
To the South
To the North
According to the Earth Science Reference Tables, an air pressure of 30.15 inches of mercury is equal to
1023 mb
1021 mb
1019 mb
1017 mb
An air pressure of 1023 millibars is equal to how many inches of mercury?
30.10
30.19
30.21
30.15
The map below represents a portion of an air-pressure field at the Earth's surface. At which position is wind speed lowest?
D
C
A
B
The arrows on the diagram below represent surface wind directions on a weather map. The points represent the locations of four weather stations in the Northern Hemisphere. Which weather station probably has the lowest air pressure?
A
B
C
D
Which weather change is most likely indicated by rapid falling air pressure
humidity is decreasing
temperature is decreasing
skies are clearing
a storm is approaching
Which map best represents the surface wind pattern associated with high-pressure and low-pressure systems in the Northern Hemisphere?
Base your answer on on the station models below, which show various weather conditions recorded at the same time on the same day at four different cities.
Which city had the lowest relative humidity?
Chicago
Detroit
Buffalo
Utica
What is the dewpoint temperature when the relative humidity is 30% and the air temperature is 20°C?
-28oC
2oC
6oC
9oC
Which weather-station model shows an air pressure of 993.4 millibars?
The map below shows air pressures recorded in millibars (mb).
Which map shows the correct location of the 996-mb, 1000-mb, and 1004-mb isobars?
Storms generally form in
low pressure systems
high pressure systems
the middle of warm air and cold air
the boundary between low and high pressure
When the height of the mercury in a barometer is 29.92 inches, the barometric pressure is
[Use ESRT 13]
1,000.0 mb
1,005.5 m
1,013.2 mb
1,020.4 mb
A student used a sling psychrometer to measure the humidity of the air. If the relative humidity was 65% and the dry-bulb temperature was 10°C, what was the wet-bulb temperature?
5°C
7°C
3°C
10°C
The diagram shows a sling psychrometer. Based on the dry-bulb temperature and the wet-bulb temperature, what is the dew point?
5°C
12°C
14°C
16°C
The diagram shows a sling psychrometer. Based on the dry-bulb temperature and the wet-bulb temperature, what is the relative humidity?
66%
58%
51%
12%
As the amount of available energy increases, the rate of evaporation increases.
This is a ______ relationship
Direct
Indirect
Cyclic
Static
What is the relative humidity if the dry-bulb temperature is 16°C and the wet-bulb temperature is 10°C?
4%
37%
45%
16%
What is the dewpoint when the air temperature is 28°C and the relative humidity is 47%?
8°C
13°C
16°C
19°C
What is the relative humidity when the dry-bulb temperature is 16°C and the wet-bulb temperature is 14°C?
90%
80%
14%
13%
The diagram below shows dry-bulb and wet-bulb temperature readings for a parcel of air. What is the dewpoint of the air?
27°C
10°C
3°C
–5°C
What is the dewpoint when the dry bulb temperature is 20°C and the relative humidity is 17%?
-5 C
-2 C
11 C
15 C
What is the relative humidity of the air when the dry-bulb temperature is 4°C and the dewpoint is -4°C?
42%
46%
51%
56%
Which map shows normal paths followed by low-pressure storm centers as they pass across the United States?
Which station model shows an air temperature of 75°F and a barometric pressure of 996.3 mb?
A temperature of 73° Fahrenheit is approximately equal to a temperature of...
17° Celsius
23° Celsius
26° Celsius
162° Celsius
When the air is full of water and has a relative humidity of 100% it is said to be ___.
full
humid
saturated
warm
As the difference between dewpoint temperature and air temperature increases, relative humidity
decreases.
increases.
remains the same.
As the difference between wet-bulb and dry-bulb increases, relative humidity
decreases.
increases.
remains the same.
Which weather map symbol is associated with extremely low air
pressure? Use ESRT p. 13
What is the relative humidity if the dry-bulb temperature is
16°C and the wet-bulb temperature is 10°C? Use ESRT p. 12
A) 33%
B) 14%
C) 4%
D) 45%
If the air temperature is 20°C and the relative humidity is 58%,
what is the dewpoint? Use ESRT p. 12
A) 5°C
B) 12°C
C) 15°C
D) 38°C
Which map best represents the surface wind pattern around
Northern Hemisphere high-pressure and low-pressure centers?
The station model below shows some weather conditions at a location on Earth's surface. Which present weather symbol represents the most likely type of precipitation occurring at this location? Use ESRT p. 13
Most tornadoes in the Northern Hemisphere are best described
as violently rotating columns of air surrounded by
A) counterclockwise surface winds moving toward the columns
B) counterclockwise surface winds moving away from the
columns
C) clockwise surface winds moving toward the columns
D) clockwise surface winds moving away from the columns
The table below shows the air temperature and dewpoint at each of four locations, A, B, C, and D. Based on these measurements, which location has the greatest chance of precipitation? ESRT p. 12 may help.
A
B
C
D
The weather satellite image below shows two large swirl-shaped cloud formations, labeled A and B, over the Pacific Ocean. These large swirl-shaped cloud formations most likely represent
A) tornadoes
B) polar air masses
C) hurricanes
D) warm fronts
What evidence shown on the map that indicates that Tampa, Florida, has a high probability of precipitation
100% cloud cover &
T and DP are close
0% cloud cover
&
T and DP are close
0% cloud cover
&
T and DP are far apart
100% cloud cover
&
T and DP are far apart
In which two temperature zones of the atmosphere does the temperature increase with increasing altitude?
(hint: look at page 14 of your ESRTs)
troposphere and stratosphere
troposphere and mesosphere
stratosphere and thermosphere
mesosphere and thermosphere
The diagram represents a barometer that shows air pressure in inches of mercury.
When converted to millibars, this air pressure is equal to
1009.0 mb
1012.5 mb
1015.5 mb
1029.9 mb
Which weather map symbol is used to represent violently rotating winds that have the appearance of a funnel-shaped cloud?
(hint: look at the bottom right of page 13 of your ESRTs)
Where do hurricanes form?
over mountains
over warm ocean water
in the deserts
large open fields
How strong must the winds be to be classified as a hurricane?
5 mph
39 mph
74 mph
156 mph
On the Saffir-Simpson scale measuring the intesity of hurricanes, the strongest storms are a
Category 1
Category 5
Category 10
Category 100
Which pressure system can produce storms?
low pressure system
high pressure system
medium pressure system
Pressure systems don't produce storms
Should bring nice weather
Low pressure
stationary front
Warm front
High pressure
Do the center of hurricanes have high or low pressure?
high
low
What are usually the most dangerous part of a hurricane?
storm surge
floods
landslides
wind
This example is on page 13 of your ESRT. What is the percent cloud cover for the example?
0%
25%
50%
75%
The temperature at which water condenses is referred to as the
relative humidity
dewpoint
50% humidity
freezing point
What is the dewpoint when the air temperature is 28°C and the relative humidity is 47%?
8°C
13°C
16°C
19°C
What is the relative humidity if the dry-bulb temperature is 16°C and the wet-bulb temperature is 10°C?
4%
37%
45%
16%
What kind of weather do low-pressure systems bring?
Sunny, cold(ish) weather
Rainy, warm(ish) weather
What kind of weather does a high-pressure system bring?
Sunny, cold(ish) weather
Rainy, warm(ish) weather
What is the station model code for a barometric pressure of 1019.5 mb?
101
195
019
119
