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A) B) C) D) 1. Which Weather Map Symbol Is Associated with Extremely 1. Which weather map symbol is associated with extremely low air pressure? A) B) C) D) 2. The diagram below represents a weather instrument. Which weather variable was this instrument designed to measure? A) air pressure B) dewpoint C) relative humidity D) amount of precipitation Base your answers to questions 3 through 5 on the weather map below and on your knowledge of Earth Science. The map shows a low-pressure system with two fronts extending from its center (L). Points A, B, C, and D represents locations on Earth's surface. Two different air masses are labeled. 3. Which locations are most likely experiencing precipitation? A) A and B B) B and C C) C and D D) D and B 4. Which cross section best represents the frontal boundary (fb) and general pattern of air movements between locations C and D? A) B) C) D) 5. Which atmospheric conditions describe the air mass that is influencing weather conditions at location C? A) cool and dry B) cool and moist C) warm and dry D) warm and moist 6. A large rainstorm follows the usual direction of movement of a weather system across the United States. Which part of New York State will receive rain from the storm first? A) northwestern B) northeastern C) southwestern D) southeastern 7. The weather map below shows a portion of a low-pressure system. Which front will most likely pass over location A during the next two hours'? A) warm B) stationary C) occluded D) cold 8. The cross section of the atmosphere below represents the air motion near two frontal boundaries along reference line XY on Earth's surface. Which weather map correctly identifies these fronts and indicates the direction that these fronts are moving? A) B) C) D) 9. Base your answer to the following question on the graph below, which shows air temperature, dewpoint, and present weather conditions for a 23-hour period at Dallas, Texas. The thunderstorm that occurred between 11 p.m. and 12 midnight was most likely the result of A) the arrival of a warm front B) the arrival of a cold front C) an increase in the difference between air temperature and dewpoint D) an increase in both air temperature and dewpoint 10. Weather along most fronts is usually cloudy with precipitation because the warm air along most fronts is usually A) sinking and cooling, causing water to evaporate B) sinking and warming, causing water to evaporate C) rising and cooling, causing water vapor to condense D) rising and warming, causing water vapor to condense Base your answers to questions 11 through 14 on the weather map below. The map shows a low-pressure system and some atmospheric conditions at weather stations A, B, and C. 11. Which cross section best represents the air masses, air movement, clouds, and precipitation occurring behind and ahead of the warm front located between stations A and B? A) B) C) D) 12. Which type of weather is usually associated with a cP air mass, as shown near weather station C? A) moist and cool B) moist and warm C) dry and cool D) dry and warm 13. The arrows on which map best represent the direction of surface winds associated with this low-pressure system? A) B) C) D) 14. If this weather system follows a normal storm track, the low-pressure center (L) will generally move toward the A) northeast B) northwest C) southeast D) southwest 15. Base your answer to the following question on the 19. In winter, a cold, dry air mass from Canada moves weather map below. Points A, B, C, and D are across Lake Ontario. The air over the lake is warmer locations on Earth's surface. and more humid than the air over the land. Which weather condition is most likely to occur as the air mass reaches Oswego? A) lake-effect snowstorm B) tornado C) warm, sunny weather D) hurricane Which type of front extends southward from the center of the low? A) occluded B) warm C) stationary D) cold 16. An airmass originating over north central Canada would most likely be A) warm and dry B) warm and moist C) cold and dry D) cold and moist 17. An air mass originating over the North Pacific Ocean would most likely be A) continental polar B) continental tropical C) maritime polar D) maritime tropical 18. Tornadoes occur when a very cold, dry air mass meets a very warm, wet air mass. Which two air masses would most likely form a tornado when they meet? A) cP and cA B) cT and mP C) cP and mT D) mP and mT 20. Which map shows normal paths followed by low-pressure storm centers as they pass across the United States? A) B) C) D) 21. Dry areas caused by sinking air and diverging surface winds are located at which two latitudes? A) 0° and 30° N B) 0° and 60° S C) 30° N and 30° S D) 60° N and 60°S 22. In which map does the arrow show the general direction that most low-pressure storm systems move across New York State? A) B) C) D) Base your answers to questions 23 through 25 on the weather map below and on your knowledge of Earth science. The weather map shows a typical low-pressure system and associated weather fronts labeled A and B. The L indicates the center of the low-pressure system. A few New York State cities are shown. Symbols cP and mT represent different air masses. The wind direction at Utica and Rochester is shown on the station models. 23. Which map shows the regions that are most likely experiencing the precipitation associated with this weather system? A) B) C) D) 24. Which front symbols are drawn correctly, based on the air masses shown? A) B) C) D) 25. If this weather system is following a normal storm track, the center of this low is most likely moving toward which city? A) Buffalo B) Ithaca C) Utica D) Plattsburgh Base your answers to questions 26 through 28 on the weather map below, which shows a high-pressure center (H) and a low-pressure center (L), with two fronts extending from the low-pressure center. Points X and Y are locations on the map connected by a reference line. 26. Which type of front is located between Buffalo and Detroit? A) stationary B) warm C) occluded D) cold 27. Which cross section best represents the fronts and air movements in the lower atmosphere along line XY? A) B) C) D) 28. Which map best shows the most probable areas of precipitation associated with these weather systems? A) B) C) D) 29. In the cartoon below, the large arrows represent surface winds. What feature is found at the location to which the meteorologist is pointing? A) an anticyclone B) an area of divergence C) a low-pressure center D) a high-pressure center 30. A cross section of a weather front is shown below. Which symbol would be used to represent this front on a weather map? A) B) C) D) 31. Which weather map symbol represents air masses that normally form just south of the United States over the Caribbean Sea? A) cP B) cT C) mP D) mT 32. On which weather map do the front symbols best represent the direction of movement of the cold front and warm front associated with the low-pressure system shown on the map? A) B) C) D) 33. An air mass classified as mP usually forms over which type of Earth surface? A) warm land B) warm ocean C) cool land D) cool ocean 34. The map below shows a low-pressure system located Base your answers to questions 37 through 39 on the over an area in the south-central United States. weather map of North America below. The map shows the location of a front and the air mass influencing its movement. In the next few days, because of the prevailing winds, the air mass will probably move toward the A) southeast B) northeast C) southwest D) northwest 35. The weather map below shows a frontal system that has followed a typical storm track. 37. The cP air mass is identified on the basis of its temperature and A) wind direction B) cloud cover C) moisture content D) windspeed 38. Which type of front and frontal movement is shown on the weather map? A) cold front moving northwestward B) cold front moving southeastward C) warm front moving northwestward D) warm front moving southeastward 39. Which region is the probable source of the air mass The air mass located over point X most likely labeled cP on the map? originated over the A) central Canada A) northern Atlantic Ocean B) southwestern United States B) central part of Canada C) North Atlantic Ocean C) Gulf of Mexico D) Gulf of Mexico D) Pacific Northwest 36. The properties of an airmass depend mainly on the A) wind speed within the airmass B) characteristics of the surface over which the airmass was formed C) size of the airmass D) rotation of the Earth 40. Base your answer to the following question on the map below, which shows the position of the jet stream relative to two air masses and a low-pressure center (L) over the United States. What is the difference in the air temperature and humidity between the cP and mT air masses? A) The cP air mass is warmer and less humid. B) The cP air mass is colder and more humid.
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