Weather Cdc's 1W071

Front 1

1. (001) How often do you accomplish a Skew-T?

Back 1

Every 12 hours.

Front 2

2. (001) Why does the isobar spacing on a Skew-T increase from the bottom to the top of the chart?

Back 2

Accounts for the decrease in density of the atmosphere with height.

Front 3

3. What is RH dependent on?

Back 3

Temperature and water vapor content.

Front 4

4. (001) The saturation mixing-ratio lines represent

Back 4

the amount of water vapor necessary to saturate a volume of air at a given temperature and
pressure.

Front 5

5. (001) Which equation shows how saturation vapor pressure (es) is related to saturation mixing ratio
ws?

Back 5

Ws = 622es
__________
P

Front 6

6. (002) Potential temperature is the temperature an air sample would have if its pressure were
increased to

Back 6

1,000 mb in a dry adiabatic process.

Front 7

7. (002) The wet-bulb potential temperature θw is the Tw a parcel of air would have if it were brought

Back 7

moist adiabatically to the 1,000 mb level.

Front 8

8. (003) A parcel of air that is lifted and returns to its original position is in what state of stability?

Back 8

Absolutely stable.

Front 9

9. (003) A parcel of air that is lifted and continues to rise after the lifting is stopped is in what state of
stability?

Back 9

Absolutely unstable.

Front 10

10. (004) A parcel of lifted air will cool dry adiabatically until condensation occurs. The level at
which this occurs is called the

Back 10

lifted condensation level.

Front 11

11. (005) What is the convective condensation level?

Back 11

Theoretical level where condensation in an ascending parcel is reached because of convection

Front 12

12. (005) One way to obtain the CCLp is to locate the point at which the mixing ratio line (on a
Skew-T) crosses the

Back 12

temperature curve of the sounding.

Front 13

13. (005) A second method for finding the CCLml was developed to give increased accuracy in

Back 13

severe weather forecasting.

Front 14

14. (006) The mixing condensation level is the

Back 14

lowest height in a layer, mixed by turbulence, at which saturation occurs after complete mixing
of the layer.

Front 15

15. (006) To determine the mixing condensation level, you must first determine the

Back 15

top of the mixing level.

Front 16

16. (007) Convective temperature is the temperature that surface air must reach to initiate convective
currents that will

Back 16

extend high enough for the air to become saturated.

Front 17

17. (008) To obtain the LFC, find the point at which the moist adiabat crosses the

Back 17

temperature curve of the sounding.

Front 18

18. (009) In an inversion, the temperature

Back 18

increases with an increase in height indicating a negative lapse rate.

Front 19

19. (009) A subsidence inversion is formed by

Back 19

the adiabatic warming of sinking air and the dew point decreases rapidly at the base of the
inversion.

Front 20

20. (010) What is the potential for thunderstorms with a convective available potential energy
(CAPE) of 2250J/kg?

Back 20

Moderate

Front 21

21. (011) Use Total Totals carefully when there

Back 21

are inversions with available moisture below 850 mb.

Front 22

22. (011) What would be the likely coverage and intensity of thunderstorms with a cross total of 30
and a vertical total of 23?

Back 22

Scattered severe

Front 23

23. (012) Tornado occurrences are grouped in SWEAT index values of

Back 23

>400

Front 24

24. (013) The use of K-index values is primarily applicable to the prediction of

Back 24

air-mass thunderstorms.

Front 25

25. (014) The SSI is the algebraic difference between the temperature of the air at

Back 25

the 500 mb level and the temperature that a sample of air at the 850 mb level would be if it
were lifted to the 500 mb level.

Front 26

26. (014) What would an SSI of –8 indicate?

Back 26

Tornadoes.

Front 27

27. (015) The season of maximum hail occurrences coincides with

Back 27

the season of maximum thunderstorms.

Front 28

What is the cloud depth ratio if the CCL is at 740 mb, the freezing level at 600 mb, and the
equilibrium level at 230 mb?

Back 28

0.27
CCL- FL= 1ST #
CCL-EL = 2ND #
1ST/2ND = CLOUD DEPTH RATIO

Front 29

29. (016) What is the cloud depth ratio if the CCL is at 770 millibars (mb), the freezing level at 550
mb, and the equilibrium level at 270 mb?

Back 29

0.44
770-550=220
770-270=500
220/500=.44

Front 30

30. (017) What is the first step in determining the size of hail?

Back 30

Determine the CCL

Front 31

31. (017) What is considered the optimum WBZ height for hail?

Back 31

8,000 feet.

Front 32

32. (018) In using the T1 method of forecasting maximum wind gusts, the warmest point on the
inversion is used to determine the T1 if surface convection does not dissipate the inversion and if
that warmest point is within

Back 32

150 to 200 mb of the surface.

Front 33

33. (018) What preconditions must exist that would make the T2 method over-forecast the speed of
the maximum gusts?

Back 33

The thunderstorm must pass over the forecast point and moderate to heavy rain must occur.

Front 34

34. (019) What are the names of the three different types of conveyer belts?

Back 34

Warm, cold, and dry air.

Front 35

35. (019) A veering wind in the vertical suggests

Back 35

WAA

Front 36

36. (020) When forecasting turbulence in convective clouds below 9,000 feet what determines the
severity of the turbulence?

Back 36

The temperature difference between the moist adiabat and the free air temperature.

Front 37

37. (020) When forecasting turbulence in convective clouds above 9,000 feet, where is the central
portion of the most turbulent area?

Back 37

Where the maximum temperature difference between the moist adiabat and the free-air
temperature is.

Front 38

38. (021) In severe weather forecasting, when is the best time period to forecast a Skew-T sounding?

Back 38

for maximum heating.

Front 39

39. (021) What element at 700 mb is most favorable for air mass destabilization?

Back 39

Dry air advection.

Front 40

40. (022) The wind at the gradient level is 30 kts, what can you expect at the surface due to the
frictional force?

Back 40

15 kts

Front 41

41. (022) The Coriolis Force is

Back 41

zero at the equator and maximum at the poles.

Front 42

42. (023) In the northern hemisphere, if you stand with the wind to your back and turn 30 degrees
clockwise

Back 42

there’s a low to your left and a high to your right.

Front 43

43. (024) Variations from climatological winds are often the result of

Back 43

migratory systems.

Front 44

44. (025) Geostrophic winds are unsuitable for

Back 44

long-term forecasting.

Front 45

45. (025) Geostrophic winds may overestimate the true wind when a low-pressure center is within

Back 45

200 miles.

Front 46

46. (026) With a gradient wind of 36 kts, what would you forecast for a mean surface wind speed?

Back 46

18kts

Front 47

47. (027) When the air is subsiding and diverging horizontally where do highs tend to move?

Back 47

Toward the center of isallobaric highs.

Front 48

48. (028) What is the header for satellite-derived winds in the Northern Hemisphere?

Back 48

*****TWXNXX KWBC*****
TWXSXX KWBC this one in southern hemisphere
NTWXXX KWBC
STWXXX KWBC

Front 49

49. (029) What begins to develop 3–4 hours after sunrise and peaks in the afternoon?

Back 49

Sea breeze.

Front 50

50. (029) These winds start when strong winds aloft flow perpendicular to a mountain range.

Back 50

Foehn wind.

Front 51

51. (030) What’s the first step in calculating crosswind component values?

Back 51

Determine the difference in degrees between the runway headings and the actual wind
direction.

Front 52

52. (031) When does low-level wind shear normally terminate below 5,000 feet with a warm front?

Back 52

At frontal passage.

Front 53

53. (031) When does low-level wind shear normally terminate below 5,000 feet with a cold front?

Back 53

Until the depth of the cold air reaches the gradient level.

Front 54

54. (032) When, where, and during what season would you most likely find a low-level jet?

Back 54

4 A.M., Kansas City during summer.
look for answers, US central plains in summer in early

Front 55

55. (032) The most likely place to find a low-level jet is

Back 55

650–1500 feet AGL.

Front 56

56. (033) In relation to the jet stream, you forecast the strongest turbulence

Back 56

on the cold air side

Front 57

57. (034) With confluent jets, CAT is normally seen when the spatial difference is

Back 57

5 degrees

Front 58

58. (034) When cyclogenesis occurs, where would you forecast CAT?

Back 58

near the jet stream core NNE of the surface low development.

Front 59

59. (035) When the wind component is 38 knots perpendicular to a mountain, approximately how far
will a mountain wave extend?

Back 59

150 NM. (2-20)

Front 60

60. (036) Which type of turbulence is experienced when an aircraft encounters vortices from another
aircraft?

Back 60

wake

Front 61

61. (036) What is the best product to use to forecast wake turbulence?

Back 61

Is not forecasted.

Front 62

62. (037) For what percentage of the time is moderate or stronger turbulence present when water
vapor image darkening persists over an area for 3 hours or more?

Back 62

80%

Front 63

63. (038) What intensity of turbulence has been associated with spectrum width values of 8–11 knots
(kts)?

Back 63

moderate

Front 64

64. (038) What intensity of turbulence has been associated with spectrum width values of 12 knots
(kts) or higher?

Back 64

severe

Front 65

65. (039) Most icing tends to occur at temperatures between

Back 65

0 and –20C.

Front 66

66. (040) What are the three types of icing?

Back 66

Rime, clear, mixed.

Front 67

67. (040) What type ice appears as a thin smooth surface or as rivulets, steaks, or bumps?

Back 67

clear

Front 68

68. (041) What type aircraft tend to be more susceptible because they fly at lower altitudes and slower
speeds?

Back 68

Trainers

Front 69

69. (041) What type of icing would you forecast that is not hazardous unless encountered for one hour
or more?

Back 69

trace

Front 70

70. (042) What type of clouds would produce extensive areas of icing potential?

Back 70

Stratiform.

Front 71

71. (042) Icing rarely occurs in this type of clouds.

Back 71

Cirrus

Front 72

72. (043) Ice formation is most common in what aircraft system?

Back 72

Air induction.

Front 73

73. (044) What reports do you use to verify icing forecasts?

Back 73

PIREPS and AIREPS.

Front 74

74. (045) CAA is identified on the Base Velocity Product on the WSR–88D by what looks like a

Back 74

backward S.

Front 75

75. (046) What spectral channels on GOES–8 and GOES–9 are useful in spotting potential icing
areas?

Back 75

1, 2 and 4.

Front 76

76) 1. (201) For the development of severe thunderstorms, what is the optimum height above the terrain
of the wet-bulb-zero?

Back 76

********************START OF VOLUME 2******************* 8000ft

Front 77

77) 2. (201) The conditions necessary for the development of tornadoes, severe thunderstorms, and their
associated destructive phenomena are a conditionally

Back 77

*UNSTABLE* atmosphere,*LARGE* quantities of moisture, *STRONG* mid-level winds, surface-based lifting
mechanism, and a favorable WBZ.

Front 78

78) 3. (202) What kind of thunderstorm is the closest to the three-stage non-severe thunderstorm?

Back 78

Air mass.

Front 79

79) 4. (202) Squall line thunderstorms form ahead of

Back 79

*INACTIVE* cold fronts in unstable, moist air.

Front 80

80) 5. (202) What air masses are separated by a dryline?

Back 80

mT and cT.

Front 81

81) 6. (203) Thunderstorms that appear to move to the right of the mid-level winds are called

Back 81

discrete propagation.

Front 82

82) 7. (203) Which of the following is associated with the gust front?

Back 82

The forward flank downdraft.

Front 83

83) 8. (204) How many types of supercell thunderstorms are there?

Back 83

3

Front 84

84) 9. (204) What supercell thunderstorm occurs mostly along the dryline?

Back 84

Low precipitation.

Front 85

85) 10. (205) At what surface pressure does the more destructive family-type tornado outbreaks occur?

Back 85

1005 mb.

Front 86

86) 11. (205) The occurrence of hail is rare when the wet bulb zero height is below

Back 86

5,000 feet or above 11,000 feet.

Front 87

87) 12. (206) Pronounced veering of how many degrees or greater between the low-level and mid-level
winds is highly productive for severe storms?

Back 87

30 degrees

Front 88

88) 13. (206) About 80 percent of storms occurred with a level of free convection between

Back 88

640 and 850 mb

Front 89

89) 14. (207) A type of destructive summertime mesoscale system associated with northwest flow
outbreaks is known as a

Back 89

derecho

Front 90

90) 15. (208) What is the depth of warm air needed to melt snow as it falls?

Back 90

750 to 1,500 feet

Front 91

91) 16. (209) What product should be used to forecast the end of snow showers?

Back 91

LAWC (local area work chart)

Front 92

92) 17. (210) When does the most significant lake-effect snow occur?

Back 92

Late fall and winter.

Front 93

93) 18. (211) For heavy snow, the 700 mb dew point should be warmer than what range?

Back 93

–10 to –5 °C.

Front 94

94) 19. (212) On what is snow accumulation dependent?

Back 94

rate and duration

Front 95

95) 20. (213) What is the most common predictor for precipitation type?

Back 95

Thickness

Front 96

96) 21. (214) Which indicator is a heavy rain signature?

Back 96

Train echoes.

Front 97

97) 22. (215) What is another name for the Foehn wind?

Back 97

Chinook

Front 98

98) 23. (215) Where does the air reach its lowest temperature in a Foehn wind?

Back 98

At the mountain crest.

Front 99

99) 24. (216) Which wavelength is best for the detection of small water droplets?

Back 99

3 cm.

Front 100

100) 25. (216) The two related factors that attenuation of radar waves depend on are the size and
composition of the particle encountered by these waves and the emitted radio waves’

Back 100

wavelength

Front 101

101) 26. (217) If a radar transmits a pulse for 3 microseconds (μsec), it would produce a pulse length of

Back 101

900 meters (length is 3 times the number of μsec)

Front 102

102) 27. (217) What decides the minimum range of the radar?

Back 102

Pulse length.

Front 103

103) 28. (217) Another term for second-trip echoes is

Back 103

range folding.

Front 104

104) 29. (218) How does the beam width vary with the wavelength; how does it vary with the diameter of
the antenna?

Back 104

Directly: inversely

This means we can get a narrower beam width by either
choosing a shorter wavelength or by building a larger antenna.

Front 105

105) 30. (218) The ability of the radar to distinguish between two targets at the same range but at different
directions from the radar is called

Back 105

bearing resolution.

Front 106

106) 31. (218) The ability of the radar to differentiate between two closely spaced targets at the same range
and bearing but at different elevations depends on

Back 106

beam width.

Front 107

107) 32. (218) Range resolution depends on

Back 107

pulse length.

The shortest distance between two targets must be more
than one-half the pulse length in order for the echoes to appear separate on the display.

Front 108

108) 33. (219) Superrefraction affects the radar’s displayed height values by making displayed height
values

Back 108

over estimated

The beam is lower than it's supposed to be. So upon stiking a target the sysetm will display the height on your screen higher than the target actually is. (Over estimated)

Front 109

109) 34. (219) An unusual straightening of the radar beam upward best defines

Back 109

subrefraction.

Front 110

110) 35. (219) Subrefraction affects the radar’s displayed height values by making display height values

Back 110

underestimated.

Front 111

111) 36. (220) When using weather radar to measure the intensity of precipitation, the presence of both
liquid and frozen scatterers may

Back 111

decrease the accuracy of the measurement because the radar equation does not handle mixed
precipitation.

Front 112

112) 37. (220) Computation of the equivalent reflectivity factor (Ze) depends on

Back 112

average returned power, range to target, and a set of known factors called the “radar constant.”

Front 113

113) 38. (220) What will the 2.2nm (resolution) reflectivity product display be, when the values of the four
consecutive 0.54nm data bins are 23, 24, 30, and 26?

Back 113

30.

The 2.2-nm resolution product displays the maximum of four consecutive 0.54-nm data values and like
the 1.1nm product, does no averaging

Front 114

114) 39. (221) The factor that allows a Doppler radar to remember the frequency of transmitted energy for
later comparison to returning energy is

Back 114

coherency

Front 115

115) 40. (222) The actual wind speed is determined if the flow of wind is

Back 115

parallel to the radar beam axis.

Front 116

116) 41. (222) By convention, velocities toward the radar are expressed as

Back 116

negative numbers.

Front 117

117) 42. (223) What limits velocity detection in a Doppler radar?

Back 117

Wavelength

As soon as we pass the 1/2 wavelength limit or 180°, the determination of velocity becomes ambiguous—the
radar may not display the true velocity.

Front 118

118) 43. (223) The basic assumption of the velocity dealiasing technique is that

Back 118

velocity should not dramatically change over a small linear distance.

Front 119

119) 44. (224) What kinds of pulse repetition frequencies are required for high velocity measurements and
long ranges?

Back 119

High PRFs are required for high velocity measurements, and low PRFs are required for long
ranges.

Front 120

120) 45. (225) What is the Doppler spectrum?

Back 120

the distribution of power received by the radar at each frequency within the sample volume.

Front 121

121) 46. (225) The spectral slope of the Doppler spectrum of a large thunderstorm with hail appears

Back 121

broad and flat
the spectrum for these targets has much more
area under the curve than other targets since the particles are larger and reflect more power back to
the radar.

Front 122

122) 47. (226) What would cause widespread low spectrum width values with isolated areas of unusually
higher values?

Back 122

Embedded convection.

Front 123

123) 48. (226) Widespread low spectrum width values with isolated areas of higher values is most likely
indicative of

Back 123

embedded storms.

Front 124

124) 49. (227) For the WSR–88D to generate a base reflectivity product, the antenna must complete

Back 124

one elevation slice.

Front 125

125) 50. (227) Where is the ideal location to look for a hook echo signature?

Back 125

In the right rear quadrant of the trailing half of the storm.

Front 126

126) 51. (227) Embedded thunderstorms are detected by the WSR–88D quite well because

Back 126

its 10cm wavelength can see through the stratiform precipitation that tends to hide the storms
on 5cm radars.

Front 127

127) 52. (227) Outflow boundaries may be seen on the WSR–88D even when no clouds are present
because

Back 127

a gradient in the refractive index due to density differences will exist with the boundary

Front 128

128) 53. (228) Which product is used in the detection and location of rotating thunderstorms and in
determining wind field characteristics?

Back 128

Base mean radial velocity

Front 129

129) 54. (228) When the Doppler zero line has a noticeable forward S-shaped pattern, winds are
considered to be

Back 129

veering

*Forward* "S" veering with height
*BACKWARD* "S" BACKING with height.

Front 130

130) 55. (228) When the radar detects pure cyclonic rotation, how is the Doppler zero line oriented

Back 130

parallel to the viewing direction.

Front 131

131) 56. (229) Why is the spectrum width product useful for the early detection of thunderstorm
development?

Back 131

The detection of high spectrum widths may be indicative of currents present in a convective
atmosphere.

Front 132

132) 57. (230) Data collected for generation of the composite reflectivity product is derived from

Back 132

all elevation slices.

Front 133

133) 58. (230) The melting level is displayed on the composite reflectivity product as a

Back 133

circular pattern of higher reflectivities.

Front 134

134) 59. (231) Which procedure is a primary use for the layered composite reflectivity maximum product?

Back 134

Quickly identifying stronger storms and areas with a greater potential for convection.

Front 135

135) 60. (231) Which condition indicates an intense updraft and strong likelihood for severe weather on
the layered composite reflectivity product?

Back 135

Strong reflectivity values (>50 dBZ) in the high altitude layer

Front 136

136) 61. (232) Identify the three processing regions of the layered composite reflectivity maximum (LRM)
anomalous propagation removed (APR) algorithm.

Back 136

Omit all, accept if, and reject if.

Front 137

137) 62. (233) As the strength of the updraft in a storm increases, what would you expect the vertically
integrated liquid values to do?

Back 137

Increase

Front 138

138) 63. (233) Vertically integrated liquid algorithms display VIL values for storms based on

Back 138

reflectivity data converted to liquid water content.

Front 139

139) 64. (234) Although severe weather probability is calculated using vertically integrated liquid,
occasionally VIL values will drop dramatically while SWP values change little or not at all. What
does this indicate?

Back 139

Storm tilt.

Front 140

140) 65. (234) Limitations that influence the vertically integrated liquid algorithm’s processing also affect the calculation of what other product?

Back 140

Severe weather probability product.

Front 141

141) 66. (235) The echo tops product is based on data from what other product?

Back 141

Base reflectivity.

Front 142

142) 67. (235) The echo tops product is very useful in

Back 142

showing the presence of vertical tilt within a storm.

Front 143

143) 68. (236) Which product is best used to determine the accuracy of WSR–88D precipitation products?

Back 143

Hybrid scan reflectivity.

Front 144

144) 69. (237) The storm total precipitation product provides continuously updated information on
precipitation accumulations within how many nautical miles of the radar?

Back 144

124nm

Front 145

145) 70. (237) A limitation of the STP product is that it

Back 145

has trouble with *SMALL*-scale features.

Front 146

146) 71. (238) Which information is included in the table that accompanies the user selectable precipitation
product?

Back 146

The total number of hours used to build the product.

Front 147

147) 72. (238) How long is the database for the user selectable precipitation product?

Back 147

30 hours.

Front 148

148) 73. (238) The maximum number of hours that the user selectable precipitation product can be
generated for is

Back 148

24

Front 149

149) 74. (239) The 2-D processor searches for cyclonic shear by identifying

Back 149

pattern vectors

Front 150

150) 75. (239) Once the mesocyclone algorithm identifies all pattern vectors, it attempts to consolidate
them to form

Back 150

3-D features

Front 151

151) 76. (239) No-data gaps are most prevalent in

Back 151

VCP21

Front 152

152) 77. (240) The tornado detection algorithm analyzes base velocity data to detect regions of strong,

Back 152

localized, cyclonic shear.

Front 153

153) 78. (240) The graphic symbol for a tornadic vortex signature is a

Back 153

red-filled, inverted, isosceles triangle

Front 154

154) 79. (240) The maximum shear associated with a tornadic vortex signature must be at least

Back 154

36m/s (≅ 72 knots) anywhere in the circulation

or 25m/s (≅ 72 knots) at the base of the circulation

Front 155

155) 80. (241) The velocity azimuth display winds profile provides

Back 155

a time-height profile of wind velocity at a predetermined range.

Front 156

156) 81. (241) The maximum number of vertical wind profiles that can be displayed on a single velocity
azimuth display winds profile is

Back 156

11.

Front 157

157) 82. (241) The color-coded root mean square of the displayed velocity azimuth display winds is related
to what characteristic of the winds?

Back 157

Reliability.

Front 158

158) 83. (241) If the velocity azimuth display algorithm finds no difference between the zero velocity line
and the zeroth harmonic, then the offset is zero, and the wind field is

Back 158

uniform

Front 159

159) 84. (242) The SRM/SRR (storm relative mean radial velocity product/storm relative mean radial
velocity (region) product) depends on what algorithm?

Back 159

Storm tracking.

Front 160

160) 85. (243) Which resolution is the severe weather analysis reflectivity product available in?

Back 160

0.54nm by 1°.

Front 161

161) 86. (244) The velocity cross section is limited to

Back 161

124nm.

Front 162

162) 87. (244) Resolution of cross-section products

Back 162

remain constant.

Front 163

163) 88. (245) Which algorithm is the output of the storm cell segments algorithm directly sent to?

Back 163

Storm cell centroids.

Front 164

164) 89. (246) The SCIT algorithm can track how many individual storm cells?

Back 164

100

Front 165

165) 90. (246) What determines the length of a forecast made by the storm position forecast algorithm?

Back 165

Accuracy of previous volume scan’s forecast.

Front 166

166) 91. (246) The storm track information product algorithm provides data on

Back 166

past, present, and future positions of thunderstorms.

Front 167

167) 92. (247) The three estimates that the hail detection algorithm provides are probability of

Back 167

hail, probability of severe hail, and MAXIMUM EXPECTED HAIL SIZE

Front 168

168) 93. (247) The probability of severe hail algorithm will look for hail

Back 168

>3/4 inch.

Front 169

169) 94. (248) Which product provides information on cell-based vertically integrated liquid, height of
maximum reflectivity, and maximum reflectivity in the cell?

Back 169

Storm structure product.

Front 170

170) 95. (248) What information does the cell trends product provide the forecaster?

Back 170

Status of supercells and the potential for microbursts.

By tracking the increase or decrease of storm tops, maximum reflectivity values, and cell-based VIL, you’ll have a better idea of what to expect from storms in the area. You can also determine the status of supercells and the potential for microbursts. After a weather event occurs, the cell trends display may be used for post-storm analysis.

Front 171

171) 96. (249) As reflectivity gradients become stronger and more evident in the lower levels of a
thunderstorm, what should you be looking for?

Back 171

Hook
Usually, as the storm becomes stronger and potentially more deadly, this gradient becomes more andmore evident and may eventually exhibit the classic hook shape.

Front 172

172) 97. (250) What is a 3-dimensional region in a storm that rotates and is closely correlated with severe
weather?

Back 172

Mesocyclone

Front 173

173) 98. (251) What should you use Spectrum Width products with?

Back 173

Velocity and reflectivity.

Front 174

174) 99. (252) Who developed the WSR88-D Product/Phenomena matrix?

Back 174

Air Weather Service

It was developed, and verified, by Air Weather Service forecasters at the WSR–88D Operational Support Facility at Norman, Oklahoma during the Operational Test & Evaluation of the radar.

Front 175

175) 100. (253) What is the best product to use to isolate storms associated with heavy snow showers?

Back 175

Vertically integrated liquid.