The Questions to the Meteorology Test, Section 2
1. Which combination of air temperature and dewpoint temperature would most likely occur in humid air?
2. What is the relative humidity of a sample of air that has a dry-bulb temperature of 18ºC and a wet-bulb temperature of 11ºC?
4. The atmospheric conditions at a given location are represented by the weather station model.
On the lines provided below, fill in the correct information for each variable listed, based on this weather station model.
Air Pressure: __________________ mb
Air Temperature: __________ F
Amount of precipitation during last six hours: ________ inch(es)
Cloud Cover: __________ %
Present Weather: ____________________
5. A strong surface wind is blowing from city A toward city B . City B has a barometric pressure of 1,000 millibars.
The barometric pressure of city A could be ____________.
6. The map to the right represents a portion of an air-pressure field at the
Earth's surface. At which position is wind speed the greatest?
7. On the cross section draw arrows that best show the normal movement of the air over Oswego, New York, on a very hot summer afternoon?
8. An atmospheric pressure of 999 millibars is equal ____________ inches of mercury.
9. Winds blow from regions of __________________ to ______________________.
10. What is the wet-bulb temperature when the air temperature is 12ºC and the relative humidity is 38%?
11. Winds are blowing from high-pressure to low-pressure over identical ocean surfaces. Which diagram represents the area of greatest windspeed?
(1)
12. By which process does water vapor change into clouds?
(2)
14. In the diagram, arrows represent air movement near an ocean coastline on a summer afternoon. Compared to the air over the ocean, the air over the land has a
__________ temperature and ____________barometric pressure.
15. When a person leaves the ocean after swimming on a windy day, the person usually feels cold because __________.

16. Under which set of atmospheric conditions does water usually evaporate at the fastest rate?
19. The graph below shows the changes in air temperature and dewpoint temperature over a 24-hour period at a particular location. At what time was the relative humidity the highest?
20. The following weather data was collected at Barnardtown, New York. Fill out the station model below with the data from the chart.
Air Temperature
Dewpoint
60 0 F
55 0 F
Visibility 4 miles
Present Weather
Wind Direction
Snow from the East
Wind Speed 25 knots
Amount of Cloud Cover 50%
Barometric Pressure 1001.3 millibars
21. The station model below shows the weather conditions at Houston, Texas, at 9 a.m. on a particular day in June. What was the barometric pressure at Houston 3 hours earlier on that day?
Base your answers to questions 22 and 23 on the weather station model shown below.
22. State the condition represented by the symbol for “present weather.”
24. Draw a graph that represents the relationship between air temperature and air density in the atmosphere?
27. A weather station records a barometric pressure of 1012.7 millibars. Draw a station model that shows this information.
25. Under which conditions is a cloud most likely to form?
26. Which type of weather is indicated by closely spaced isobars on a weather map?

28. When would the water in a Georgia pond evaporate fastest?
29. An air pressure of 28.94 inches of mercury is equal to ________________ mb.
30. A parcel of air has a dry-bulb temperature of 14ºC and a wet-bulb temperature of 10ºC. State the relative humidity of this parcel of air. _______ %
31. The graph below shows air temperature for an area near the Earth's surface during a 12-hour period.
Draw a graph that best illustrates the probable change in air pressure during the same time period?
32. The graph below shows the air pressure recorded at the same time at several locations between Niagara Falls and Albany. Based on the information in this graph, the wind velocity is probably lowest between which two cities?
33. What is the approximate dewpoint temperature when the dry-bulb reading is 28ºC and the wet-bulb reading is 15ºC?
34. Base your answer to the following question on the weather map below, which shows a low-pressure system that is influencing the weather conditions in New York State.
Wind velocity is probably greatest at which city (use page 3 of your reference tables)?
35. By which process are clouds, dew, and fog formed?
36. As the dewpoint temperature and the air temperature approach the same value, the probability of precipitation will __________________.
38. Draw a station model that represents an atmospheric pressure of 1,032.0 millibars and a temperature of 42ºF?