WMOD00594

• Title: Investigations of Winter Mountain Storms in Utah during the 1987 Utah/NOAA Field Program
• Date: 1/1/1990
• State: UT
• Weather Modification - Doc Type: Report

PAGE

Figure 52. Same as Fig. 47, except for 0500 MST
on 16 February 1987....................... 136
Figure 53. As in Fig. 48, except an enhanced IR
image at 0200 MST on 16 February in
a) and enhanced IR image at 0600 MST
on 16 February in b)...................... 137

Figure 54. As in Fig. 47a, except for 1700 MST on
16 February 1987.......................... 139

Figure 55. Visible satellite image at 1300 MST on

16 February............................... 140

Figure 56. Time versus pressure diagrams of geo-
potential height tendency and temperature
during STORM 5............................ 141

Figure 57. Same as Fig. 56, except for relative
humidity and wind, and equivalent
potential temperature..................... 143

Figure 58. Westerly and southerly vapor flux during
STORM 5 determined from rawinsondesu
and v component wind speeds and absolute

humidi ty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146

Figure 59. A co~parison of the liquid water
measured upwind and downwind of
the radiometer............................ 148

Figure 60. Polar plot of radiometer liquid water
depth overlaid on terrain surrounding
the radiometer for STORM 5................ 149

Figure 61. Time series plots of SLWD liquid water
concentration and lidar cloud base
height, radiometer liquid depth and
vapor flux at 3000 m, precipitation rate,
K.-band radar reflectivity, and ice
particle types............................ 151

Figure 62. Infrared satellite image at 1100 MST
on 23 February 1987 showing surface
(black) and upper air (white) fronts,

troughs, ate.............................. 157

Figure 63. Geopotential height (m) and isotherms
(Oe) for a) 700 mb, and b) 500 mb
surfaces at 1200 MST on 23 February 1987.
Shading represents regions of 30 and 60m
height falls over the preceding 12h and
hatching denotes areas where dewpoint
depression was ~30..............o......... 159

xiii