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| HABY HINTS QUIZ, SET 2 |
The following 50 question quiz asks multiple choice questions based on Haby Hints 51 through 100 covered at this link: http://theweatherprediction.com/habyhints/
An answer key is provided at the bottom of this webpage.
51. All of the following usually significantly restrict the viewing of a tornado except:
a. Tall trees
b. Good preexisting visibility
c. Night
d. Heavy rain
52. What is elevated convection?
a. It is any CAPE that is released in the troposphere
b. It is a thunderstorm that develops at the jet stream level
c. It is convection that has an enhanced chance of being severe
d. It is convection not resulting from PBL based convection
53. A rapid decrease in dewpoint with height is termed a(n):
a. Hydrolapse
b. Inversion
c. Moist layer
d. Isothermal layer
54. Which LI value is the most stable?
a. 4
b. 0
c. -4
d. -8
55. What is a trigger mechanism?
a. It is a process that prevents precipitation or storms from occurring
b. It is a sounding that has a region of positive CAPE
c. It is any process that initiates precipitation or storm development
d. It is in reference to Omega forcing from either low level divergence or upper level convergence
56. The type of vorticity displayed on the 500-mb pressure surface is ____(1)_____. The type of vorticity produced from changes in wind speed and direction with height is _____(2)_____.
a. (1) horizontal vorticity, (2) vertical vorticity
b. (1) vertical vorticity, (2) horizontal vorticity
57. All of the following will exacerbate the flash flood potential except:
a. Snow melt
b. Dense vegetation
c. Saturated soil
d. Training of thunderstorms
58. This tilt of an upper level trough on a pressure surface is associated with an enhanced chance of severe weather when cold dry air swings over the top of warm and moist air.
a. Positive tilted trough
b. Neutrally tilted trough
c. Negatively titled trough
59. When the air is unsaturated at a constant pressure, which value will always be greater:
a. Temperature
b. Dewpoint
c. Wet-bulb
d. Frost point
60. (Statement 1) A forecast model will generally be more accurate if it gets more accurate initial data. (Statement 2) A forecast model will generally be more accurate if it gets a higher density of initial data.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
61. The mesolow from a thunderstorm develops due to:
a. Dense sinking air in the downdraft region
b. Buoyant rising air in the updraft region
62. The pressure decreases more rapidly with height in a _____(1)______ air mass. A ____(2)_____ air mass will have high 1000 to 500 mb thickness values.
a. (1) warm, (2) cold
b. (1) warm, (2) warm
c. (1) cold, (2) warm
d. (1) cold, (2) cold
63. (Statement 1) A breeze from a large lake will always make the temperature cooler downwind from the lake than it otherwise would be. (Statement 2) The top of a mountain will always be cooler than the base of the mountain.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
64. Gravity waves propagate through ____(1)______ atmospheric layers. In a gravity wave, the ____(2)____ moving region is the most favorable region for cloud development.
a. (1) unstable, (2) downward
b. (1) unstable, (2) upward
c. (1) stable, (2) downward
d. (1) stable, (2) upward
65. DPVA contributes to ______(1)________. PDVA ______(2)________ the troposphere and thus lowers heights aloft.
a. (1) rising air, (2) cools
b. (1) rising air, (2) warms
c. (1) sinking air, (2) cools
d. (1) sinking air, (2) warms
66. To become a better forecaster it is important to:
a. Study how and why a forecast went good or bad
b. Learn from others that know more meteorology than you
c. Read meteorology textbooks and journals.
d. All of the above
67. (Statement 1) A broadcast meteorologist should be most comical during severe weather and most serious during mundane weather. (Statement 2) Community involvement and school visits are an important part of a broadcast meteorologist's job.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
68. Correct forecasts can save:
a. Lives
b. Money
c. Property
d. All of the above
69. To be a good forecaster for clients or viewers, the meteorologists needs to be able to:
a. Copy the NWS forecasts
b. Demonstrate a strong handle on oral and written communication
c. Derive dynamical and thermodynamical equations often
d. Have an enhanced psychic ability
70. (Statement 1) The accuracy of a forecast depends upon the range of acceptable values in the verification process. (Statement 2) It is a good idea to make a forecast that is very general because it has a better chance of verifying.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
71. (Statement 1) The reaction the public will have to a particular snow event is regionally dependent. (Statement 2) Even small accumulations of freezing rain or sleet make a winter weather event significant if it accumulates on the roads.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
72. These are terms that make a forecast more entertaining and personable:
a. Scientific jargon
b. Catchy phrases
c. Calculus notation
d. Foul language
73. 25 C is equal to _________ F.
a. 50
b. 68
c. 77
d. 86
74. A mile per hour is equal to ________ nautical miles per hour.
a. 2
b. 1.5
c. 1.15
d. 0.87
75. Why do meteorologists use Z-time?
a. Since it does not have AM or PM
b. To use the local time at the International Dateline
c. In order for meteorology observations to occur at the same time relative to a common reference location
d. In order for the general public to not understand when weather data is taken
76. These connects points of equal barometric pressure normalized to sea level.
a. Isobars
b. Isohypses
c. Isohyets
d. Isotachs
77. When strong low level warm air advection occurs, the 700 mb, 500 mb and 300 mb height contour values will likely _____(1)______. The 500 mb level is closest to ____(2)_____ kilometers.
a. (1) increase, (2) 5.5
b. (1) increase, (2) 3.0
c. (1) decrease, (2) 5.5
d. (1) decrease, (2) 3.0
78. Contours of surface pressure change are termed:
a. Height change contours
b. Isobars
c. Isohypses
d. Isallobars
79. (Statement 1) The temperature minus the dewpoint is the dewpoint depression. (Statement 2) Upper air temperatures are usually given in degrees Celsius.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
80. Snowflakes generally take longer to reach the surface than raindrops during descent because:
a. Snowflakes are more dense
b. Snowflakes are smaller
c. Snowflakes are easily wafted by the wind
d. Snowflakes are heavier
81. The estimation of a meteorological value such as temperature between two known data points is termed:
a. Extrapolation
b. Boundary error
c. Omega
d. Interpolation
82. Which of the following is false:
a. Surface pressure tends to lower as a front approaches
b. A front is located on the warm side of the temperature gradient
c. A front is a zone of wind divergence
d. Dewpoint tends to decrease behind a cold front boundary
83. (Statement 1) If the temperature is 90 F and the dewpoint is 70 F, then the relative humidity is (70/90)*100% = 78%). (Statement 2) The relative humidity is a good indicator of how much moisture there is in the air regardless of air temperature.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
84. Becoming a professional in your field is a function of:
a. Your education and what you learn
b. Your choices and how you deal with your choices
c. Your on the job experiences
d. All of the above
85. (Statement 1) In nature, areas of deficit tend to move toward areas of excess. (Statement 2) Air moves from high pressure toward low pressure.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
86. This air mass has abundant moisture and warm air:
a. Maritime Polar
b. Maritime Tropical
c. Continental Tropical
d. Continental Polar
87. Which of the following is true of maritime polar air?
a. It has a high dewpoint
b. It has very warm temperatures
c. It has a high relative humidity
d. It forms over equatorial oceans
88. Deductive reasoning is:
a. Guessing at the reasons why something happens
b. Coming to a logical conclusion based on a set of facts
c. The same as extrapolation
d. Anything that is a stated fact
89. Which of the following is true of a continental polar air mass?
a. It has a high degree of stability
b. The relative humidity is generally high
c. The source region is over cold ocean water
d. Precipitation tends to be heavy within the air mass
90. A dryline separates these two air masses:
a. Continental polar from maritime tropical
b. Maritime polar from maritime tropical
c. Maritime tropical and continental tropical
d. Continental polar from continental tropical
91. An example of a source region of continental arctic (cA) air is:
a. Mexican plateau
b. Gulf of Alaska
c. Northern Great Plains of U.S.
d. Siberia
92. The region of the U.S. dominated by highland climates is the:
a. Southeast region
b. Great Lakes region
c. Western region
d. Great Plains region
93. The Low pressure "L" on a surface map stands for:
a. Happy weather
b. Cold weather
c. Warm weather
d. Lousy weather
94. When one front lifts another front it is termed a(n) _____________ front on a surface chart.
a. Occluded
b. Stationary
c. Kata
d. Barotropic
95. (Statement 1) It is a good idea to always based your forecast on the ETA MOS. (Statement 2) MOS stands for Model Operating System.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
96. Warm air advection in the low levels of the troposphere causes rising air. This is because warm air ____(1)_____, creating a higher thickness, which in turn causes the air to rise. Any low level density boundary will lead to rising motion if ______(2)______ occurs along that low-level boundary.
a. (1) expands, (2) divergence
b. (1) expands, (2) convergence
c. (1) contracts, (2) divergence
d. (1) contracts, (2) convergence
97. (Statement 1) Snow will always occur when the 1000 to 500 millibar thickness is 5,400 meters or lower. (Statement 2) In evaporational cooling occurs through a deep layer of the troposphere the thickness of that layer will tend to increase.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
98. The 0 C isotherm can move across the surface or a pressure surface through:
a. Thermal advection
b. Evaporational cooling
c. Radiational cooling
d. All of the above
99. An environment in which parcels of lifted air can rise on their own due to positive buoyancy through a region of CAPE is termed an environment with:
a. A temperature increase with height
b. Instability
c. Severe weather potential
d. Strong shear
100. (Statement 1) A region of enhanced wind flow within the jet stream is termed a jet streak. (Statement 2) The jet stream has waves within it of troughs and ridges.
a. Statement 1 and Statement 2 are both false
b. Statement 1 and Statement 2 are both true
c. Statement 1 is true and Statement 2 is false
d. Statement 1 is false and Statement 2 is true
KEY
| 51. B | 61. B | 71. B | 81. D | 91. D |
| 52. D | 62. C | 72. B | 82. C | 92. C |
| 53. A | 63. A | 73. C | 83. A | 93. D |
| 54. A | 64. D | 74. D | 84. D | 94. A |
| 55. C | 65. A | 75. C | 85. D | 95. A |
| 56. B | 66. D | 76. A | 86. B | 96. B |
| 57. B | 67. D | 77. A | 87. C | 97. A |
| 58. C | 68. D | 78. D | 88. B | 98. D |
| 59. A | 69. B | 79. B | 89. A | 99. B |
| 60. B | 70. C | 80. C | 90. C | 100. B |