WMOD00315

• Title: Investigations of Winter Storms Over the Wasatch Plateau During the 1991 Utah/NOAA Field Program
• Prepared For: Utah Department of Natural Resources Division of Water Resources
• Prepared By: Arlen W. Huggins, Melanie A. Wetzel, Patricia A. Walsh
• Date: 10/1/1992
• State: UT
• Weather Modification - Doc Type: Report

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Figure 3.33. Temporal plotS of meteorological data from the DOT site for 16 February
1991 during Storm Period 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44
Figure 3.34,. Same as Fig. 3.33, except for 17 February 1991 during Storm Period 7. . 3-45
Figure 3.35. Same as Fig. 3.33, except for 18 February 1991 during Storm Period 7. . 3-46
Figure 3.36a. GOES-7 infrared image taken at 1300 MST 16 February 1991. . . . . . . 3-47
Figure 3.36b. Same as Fig. 3.36a, except for 1700 MST 16 February 1991. ...... 3-48
Figure 3.36c. Same as Fig. 3.36a, except for 2100 MST 16 February 1991. ...... 3-49
Figure 3.37. Same as Fig. 3.36a, except for 1700 MST 17 February 1991. ....... 3-50
Figure 3.38. Surface and 500 mb analyses for 0500 19 February 1991. . . . . . . . . . . 3-52
Figure 3.39. 700 mb analysis for 0500 19 February 1991. . . . . . . . . . . . . . . . . . . 3-53
Figure 3.40. Temporal plots of meteorological data from the DOT site for 19 February
1991 during Storm Period 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
Figure 3.41. 700 mb analysis for 1700 24 February 1991. . . . . . . . . . . . . . . . . . . 3-55
Figure 3.42. Temporal plots of meteorological data from the DOT site for 24 February
1991 during Storm Period 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-56
Figure 3.43. Surface and 500 mb analyses for 0500 28 February 1991. . . . . . . . . . . 3-58
Figure 3.44. 700 mb analysis for 0500 28 February 1991. . . . . . . . . . . . . . . . . . . 3-59
Figure 3.45. Temporal plots of meteorological data from the DOT site for 28 February
1991 during Storm Period 10. ............................... 3-60
Figure 3.46. Same as Fig. 3.45, except for 1 March 1991 during Storm Period 10. .. 3-61
Figure 3.47. Same as Fig. 3.45, except for 2 March 1991 during Storm Period 10. .. 3-62
Figure 3.48a. GOES-7 infrared image taken at 0600 MST 28 February 1991. . . . . . . 3-63
Figure 3.48b. Same as Fig. 3.48a, except for 1100 MST 28 February 1991. ...... 3-64
Figure 3.49. Same as Fig. 3.48a, except for 0900 MST 1 March 1991. ......... 3-65
Figure 3.50. Time versus height plot of maximum dB~ values recorded by the
vertically-pointing K.-band radar at the DOT site from 1100-1700 1 March

1991. .............................................. 3-66
Figure 3.51. Surface and 500 mb analyses for 0500 3 March 1991. . . . . . . . . . . . . 3-68
Figure 3.52. Surface and 500 mb analyses for 0500 5 March 1991. . . . . . . . . . . . . 3-69
Figure 3.53. 700 mb analysis for 1700 5 March 1991. . . . . . . . . . . . . . . . . . . . . 3-70
Figure 3.54. Temporal plots of meteorological data from the DOT site for 3 March
1991 during Storm Period 11. ............................... 3-71
Figure 3.55. Same as Fig. 3.54, except for 4 March 1991 during Storm Period 11. .. 3-72
Figure 3.56. Same as Fig. 3.54, except for 5 March 1991 during Storm Period 11. .. 3-73
Figure 3.57. GOES-7 infrared image taken at 2300 4 March 1991. ............ 3-75
Figure 3.58. Potential and equivalent potential temperatures plotted versus height from
Mt. Pleasant soundings taken at 1800 4 March (top panel) and 0000 5 March

(bottom panel). ........................................ 3-76

Figure 3.59. Time versus height plot of maximum dB~ values recorded by the
vertically-pointing K.-band radar at the DOT site from 0200-0800 5 March

1991. .............................................. 3- 77
Figure 3.60. Surface and 500 mb analyses for 0500 6 March 1991. ... . . . . . . . . . 3-79
Figure 3.61. Temporal plots of meteorological data from the DOT site for 6 March
1991 during Storm Period 12. ............................... 3-80
Figure 3.62. Same as Fig. 3.61, except for 7 March 1991 during Storm Period 12. .. 3-81
Figure 3.63a. GOES-7 infrared image taken at 1300 MST 6 March 1991. ........ 3-82
Figure 3.63b. Same as Fig. 3.64a, except for 2000 MST 6 March 1991. . . . . . . . . . 3-83
Figure 3.64. Time versus height plot of maximum dB~ values recorded by the
vertically-pointing K.-band radar at the DOT site from 1400-2000 6 March

1991. .............................................. 3-84
Figure 3.65. Surface and 500 mb analyses for 0500 10 March 1991. ........... 3-86

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