EAS 101 Sample Test Questions for Test 3
At the end of the test you will have to estimate your grade on this test _________%
On many problems, labeled diagrams will help
1. Air at sea level with T = 21C and Td = 13C rises over a mountain 4 km high and then sinks back
on the other side to sea level. Show all temperature changes including the T and Td both at the top of
the mountain and at sea level on the far side. Tell the height of the cloud base (condensation level).
Explain any differences between initial and final T and Td.
T=
4
Td =
3
Condensation Level _____ km
2
1
T = 21
0 km
Td = 13
T=
Td =
EXPLAIN ANY DIFFERENCES:
2. Draw soundings of Temperature and Dew Point Temperature that include a front and will
produce A: snow and B: freezing rain.
8 km
SNOW
FREEZING RAIN
4 km
-30
0
T (C)
30
0 km
-30
0
T (C)
30
3. Fill in the missing temperatures in the diagram below of a warm front and then tell the form of
precipitation at each point and give reasons.
4. Describe how hailstones form and the weather conditions they form in. Then describe the
conditions that lead to clear ice and cloudy ice in the hailstones and briefly explain.
5. Name four forces on the winds and describe their effect.
6. Explain why the sky does not fall – how air can remain still
when gravity pulls all objects including air downward.
996
L
7. On the weather map to the right, pressure decreases towards
the _____. Then the geostrophic wind blows from the ______
1000
and the wind near the ground blows from the _____
8. On that diagram, show the wind direction. Draw forces for
the geostrophic wind and for the wind near ground level.
1004
9. Temperature is 32C at ground level and 34C 1 km up and
H
the air is saturated. Prove if this situation stable or unstable.
Then state whether thunderstorms or air pollution is more likely.
10. In the diagrams to the right, draw the winds, temperatures and locations and types of clouds
along the shoreline on clear days and
nights.
11. In the diagrams below, draw the
temperatures, winds and locations
Sea
Land
Sea
Land
and types of clouds in mountainous regions on clear days and nights.
12. On the map of the United States, draw the plan (map) view of an extratropical low showing
fronts, winds, temperature, clouds and weather types. In the
box below it, draw the panoramic (cross section) view of the
low with fronts, winds, etc.
13. Describe the weather sequence when a low pressure area
center passes by to your south.
14. Describe the typical life cycle of an air mass thunderstorm.
15. Draw a weather map of the USA showing the wind,
temperature and humidity conditions that lead to severe,
thunderstorms.
16. List the factors that lead to coastal flooding during a
hurricane or intense low and explain briefly how they work.
17. Draw a plan view and cross section view of the structure of
a severe, supercell thunderstorm showing locations of hail,
rain, and tornado.
18. Describe the development process of a hurricane (i. e.,
typhoon) and list the necessary conditions for its formation.
19. On a world map outline the region in which typhoons form
in the western North Pacific Ocean. Show with arrows the typical storm tracks and list the months
they are most frequent.
20. Describe and explain the ways that hurricanes affect sea level.
21. In the infrared satellite image, label the eye of the hurricane “E” and the coldest clouds, “C”.
The temperature of the land at point A = _____C, the water at point B = ____C and the coldest
clouds of the hurricane = _____C. Is this an early morning or late afternoon image? Justify your
answer.
22. Draw the front on the accompanying surface weather map.
H
H
L
H
A
B