Station A. 1. In the Northern Hemisphere, the general direction of the flow of the jet stream is toward the: a. north b. east c.

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1 Station A 1. In the Northern Hemisphere, the general direction of the flow of the jet stream is toward the: a. north b. east c. south 2. The percentage of oxygen in the atmosphere is: a. 78% b. 99% c. 21% 3. The five main layers of the atmosphere are mainly classified according to altitude. 4. Over the past 30 years, air quality in the United States has improved.

2 Station B 5. Clouds that are in layers are called: a. cirrus b. stratus c. cumulus 6. What color does a cloud have that usually can predict hail, or even tornados? a. green b. red c. black 7. The brief cloud that forms when you exhale on a cold winter day was formed because of precipitation. 8. This type of cloud is a cirrus

3 Station C 9. What is the name of the scale used to rank hurricanes and measure their damage potential? a. Fahrenheit b. Saffir-Simpson c. Beaufort 10. Which is the deadliest hurricane on record: a. Hurricane Andrew b. The Lake Okeechobee of 1928 c. The Galveston Hurricane of The eye is the windiest part of the hurricane. 12. Hurricane Hunters are planes with scientists that fly into hurricanes to learn more about them.

4 Station D 13. Winds are described according to: a. the direction they are blowing toward b. The direction they are blowing from c. their speed 14. The area where the trade winds meet near the equator and produce an area of low pressure and calm winds are called: a. the maelstroms b. the camel winds c. the doldrums 15. An onshore breeze, or sea breeze develops when there is lower pressure over nearby land. 16. Winds that are more consistent from one direction than from any other are best described as prevailing winds.

5 Station E 17. Which of the following kills the most people each year? a. floods b. hurricanes c. lightning 18. What causes a drought? a. not enough moisture in the soil b. hot dry air c. not enough rain d. any or all of the above 19. Lines connecting places of equal pressure on a weather map are called an isobars. 20. When driving in a flooded area the best thing to do is to proceed slowly through the flooded area.

6 Station F 21. Wind speed is measured with a: a. anemometer b. barometer c. hygrometer 22. When the thermometer reads 100 degrees Fahrenheit and the humidity is 60%, how hot do you really feel according to this heat index chart? a. 116 degrees F b. 136 degrees F c. 129 degrees F 23. A weather vane can tell you how fast the wind is blowing. 24. A psychrometer measures relative humidity.

7 Station G 25. A cp air mass would most likely be: a. cold and humid b. warm and dry c. cold and dry 26. What is most likely to occur when cold air moves into a region occupied by warmer air? a. A warm front will form, and there will be intense precipitation b. The air masses will mix forming a median temperature c. A cold front will form as warm air is forced upward. 27. The lines connecting places of equal temperature on a weather map are isoclines. 28. A front usually marks a change in weather.

8 Station H 29. What type of weather would make the MOST dangerous driving conditions? a. mist b. light snow flurries c. freezing rain 30. Precipitation that evaporates before making it to earth s surface is called: a. Fog b. Virga c. Haze 31. Unsaturated air is required for fog, dew, and cloud formation. 32. Snow is small, partly melted bits of ice.

9 Station I 33. What is another name for a thunderstorm cloud? a. cumulonimbus cloud b. cirrus cloud c. Bob cloud 34. The low pressure L on a weather surface map stands for: a. High pressure system b. Cold weather system c. Low pressure system 35. A weather scientist is called a geologist. 36. A weather station influences weather conditions.

10 Station J 37. What cloud form is a sign of a tornado formation? a. Wall cloud b. Outflow band c. Stratus 38. A tornado watch is: a. When they tell you to duck b. When a tornado has been spotted in your area c. When tornadoes are possible in your are 39. This form of a tornado is called a waterspout. 40. Opening windows during a tornado will help to prevent the roof from blowing off

11 Station K 41. Lake effect snows usually occur around the Great Lakes during: a. early spring when moist tropical air moves over the frozen lakes b. the end of winter when moist polar air moves in from the east c. late fall and early winter when cold, dry polar air moves over the warmer water 42. On a chilly day in March it rained 5 centimeters. If it had snowed, how much snow would we have gotten using the accepted rule? a. 10 centimeters b. 20 centimeters c. 50 centimeters 43. The term Indian Summer usually refers to weather that occurs in the spring in Michigan. 44. Lightning is the first thunderstorm hazard to arrive and the last to leave.

12 Station L 45. Thunderstorms are most frequent within: a. cold, moist air masses b. warm, dry air masses c. warm, moist air masses 46. In order for thunderstorms to form, they need: a. moisture b. unstable air c. lift d. all of the above 47. Heat lightning is caused by intense heat. 48. Most lightning deaths and injuries occur when people are caught outdoors in the summer months during the afternoon and evening.

13 Station M 49. On a weather map, what kind of front is blue with triangles? a. warm front b. cold front c. stationary front 50. If there are a lot of isobars close together around a pressure system the winds will be: a. very strong and gusty b. moist c. dry and cold 51. A stationary front is indicated on a weather map with a red line and semicircles. 52. A frontal boundary marks the position where two air masses of different densities are in contact.

14 Station N 53. Wind driven snow that reduces visibility is known as: a. blowing snow b. icicles c. snow flurries 54. As the earth spins, what is the scientific reason that the winds in the north blow clockwise? a. Bernouli Principle b. Coriolis Effect c. Polar Bear Effect 55. An El Nino season will cause less precipitation in Michigan. 56. A tropical depression could be the beginning of a hurricane.

15 Station O 57. The temperature at this weather station is: a. -27 b. 64 c The wind at this weather station is blowing from the: a. northwest b. northeast c. south east 59. The curved lines on this map are called isobars. 60. With winds of 194 mph and a barometric pressure of 932 mb, Hurricane Mitch was a category 3 Hurricane.

16 Station P 61. Which type of front advances the most rapidly? a. warm front b. occluded front c. cold front 62. The north end of the Earth s axis is tilted toward the sun in: a. June b. March c. December 63. In the Northern Hemisphere the winds of a low pressure system always spin clockwise. 64. The lower the dew point, the greater the moisture content is in the air.

17 Station Q 65. What is the name given for the two days that are the shortest and longest of the year? a. equinoxes b. vernal c. solstices 66. What is the correct order of the seasons? a. summer, winter, spring, fall b. fall, spring, winter, summer c. spring, summer, fall, winter 67. Wind chill can make us feel colder in winter than what the temperature really is. 68. When it is summer in Michigan it is winter in Australia

18 Station R 69. Which are all processes involved in the water cycle? a. evaporation, condensation, precipitation b. condensation, drinking, hibernation c. paddling, swimming, precipitation 70. Where does some of the water from the water cycle collect underground? a. aqueducts b. aquifers c. aquariums 71. The average North American uses gallons of water every day. 72. Evaporation is when water vapor meets cold air and changes back into liquid.

19 Station S 73. A NEXRAD is a type of Doppler Radar. 74. What weather event does this map show and why does it occur?

20 Station T 75. On the Fahrenheit scale, the freezing point of water is 0 degrees. 76. Tell me what the weather is in lower Michigan and why.

21 Answer Key for District 2010 (master) 1. B 16. T 31. F 46. D 61.C 2. C 17. A 32. F 47. F 62. A 3. F 18. D 33. A 48. T 63. F 4. T 19. T 34. C 49. B 64. F 5. B 20. F 35. F 50. A 65. C 6. A 21. A 36. F 51. F 66. C 7. F 22. C 37. A 52. T 67. T 8. T 23. F 38. C 53. A 68. T 9. B 24. T 39. T 54. B 69. A 10. C 25. C 40. F 55. T 70. B 11. F 26. C 41. C 56. T 71. T 12. T 27. F 42. C 57. B 72. F 13. B 28. T 43. F 58. C 73. T 14. C 29. C 44. T 59. F 74. Essay 15. T 30. B 45. C 60. F 75. F 76. Essay

22 Answer Key for District 2010 (Green 2 pts) 1. B D 61.C 2. C 17. A A D 33. A C 49. B B A 65. C 6. A 21. A C C 37. A C 53. A B B 69. A 10. C 25. C B C 41. C C 57. B B C 14. C 29. C B 45. C 60.

23 Answer Key for District (Red 1 pt) T 31. F F 47. F F T 63. F 4. T 19. T F F 35. F F 51. F F T 67. T 8. T 23. F T T 39. T F 55. T F T 71. T 12. T 27. F F T 43. F T T 59. F 75. F 15. T F

24 Answer Key for District 2010 Stations S and T These essay questions are to be used for TIE-BREAKERS ONLY. I give 1 point (up to 5) for any of these words included in the answer. Spelling counts and can be used as an additional tie-breaker if necessary. Station S Essay Key words: Lake effect snow, cp or Continental Polar air moves over warm water, adds more moisture, caused by evaporation of the lake, forms in bands or lines, Station T Essay key words: Rainy, cloudy, warmer than usual because of stationary front, cold front is behind and will bring colder weather later in week.

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