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<br />Figure 7 shows the HMS radar-estimated storm rainfall from 1428 MDT
<br />until 1642 MDT across the basin based on the technique described above. The
<br />basin average rainfall during this period was 3.50 inches of rain with a peak 0.65
<br />square mile rainfall of 5.20 inches. The peak square mile rainfall was 4.99
<br />inches. Note that the storm has formed a rather symmetric pattern with lobes of
<br />heavy rainfall extending to the northeast and southeast. The radar pattern
<br />indicated that two storm complexes moves within the pattern with first one
<br />moving from southwest to northeast and the second one moving from northwest
<br />to southeast. This change in cell direction suggests that a disturbance moved
<br />across the area affecting the movement of the cells.
<br />
<br />0,10 0.10 0,25 0,20 0.30 0.15 0,20 0,20 0.10 0.10 0.10 0.31 0,47 0,42 0.26 0,16 0,75 0.92 1.20 1.14 0.96
<br />
<br />0.10 0,10 0,20 0.20 0,25 0,20 0.20 0,15 0.05 0.25 0.31 0.58 0.78 0.85 0.79 0,86 1.19 1.31 1.37 1.26 0.97
<br />
<br />0,00 0,00 0.15 0.20 0.20 0,20 0.15 0.15 0.30 0.35 0.30 0,66 0,88 0.95 1.13 1.07 1.14 1.09 1.37 1.21 1.08
<br />
<br />0.00 0,00 0.00 0,00 0.05 0,10 0,20 0,25 0,35 0,35 0.77 0,93 1.20 1.54 1,40 1,40 1.19 1.57 1.91 1.90 1.60
<br />
<br />...J!
<br />0.00 0.00 0,00 0,00 0,05 0,10 0,20 0,20 0,72 0,94 0.83 1.31 1.15 ,(lJ.> 1.67 1.78 1,41 1.92 iI9
<br />
<br />0.00 0.00 0.00 0,00 0,00 0.05 0,20 0,40 1.39 1.46r.zl'l~ 12\62 121 ~~11~1.1~ k 2~3S 1
<br />~-.ry:J! ,. .r, ~ ~ >; -~
<br />0.00 0,00 0,00 0.00 0,00 0,05 0.20 0,73 :i!b8 f2!!18 ':II ,2'i7B iif<i9 !2~!18 . . 1
<br />
<br />~~~~~~~~- ~~~ ~
<br />
<br />0,00 0.00 0.16 0.00 0.16 0,21 1.23 1.81 4.21 4,12 4.30
<br />
<br />~
<br />
<br />4.18 4.61 4,40 4,15 4,03 4.13 4.30 4.46 4.22
<br />
<br />~2..
<br />
<br />0,00 0.00 0.16 0.00 0A8 0.85 ,>2~
<br />l
<br />0,00 0.00 0.16 0.16 0.80 1.29 '2f
<br />
<br />4,19 4,91
<br />
<br />4,97 4.27 4,62 4.15 4.13
<br />
<br />0.00 0.00 0.00 0,00 0,16 1.02 1.83 2.74
<br />
<br />4,43 4,96
<br />
<br />4,90
<br />
<br />4.31 4.33 4,40
<br />
<br />'-I
<br />
<br />0,00 0.00 0,00 0,16 0,16 1.02 1.90
<br />
<br />4.89
<br />
<br />4,91 4,74 4,76 4.57 4.60 4,38 4.32
<br />
<br />0,00 0.16 0,00 0.16 0,32 1.02 2:'1'
<br />
<br />4.57 4.72 4.71 4,33 4.33 4.87 4,61 4.26 4.21
<br />
<br />0.38 0,38 0,16 0.16 0.16 0.86 >2lO'l '283
<br />j
<br />0.38 0.38 0.16 0,16 0,32 0,80 2~O' '2!B8
<br />
<br />4.40
<br />
<br />4,09 4,17 4.23 4.64 4,38
<br />
<br />.73
<br />
<br />4.00
<br />
<br />,~ Iii!IIlIIII!
<br />0.54 0,54 0.32 0,22 0,54 0.96 1.90 !2,43 iV-66f2192 '2.99 12! . f~6S '2!81
<br />0.54 0.54 0,54 0.60 0.70 0.60 0.86 1.78 2m:112<5B i2!92 '2,'16 i;~f:Z{ .; ~ 2 ~
<br />I ,,' ....
<br />"~ , '. ," i", ,~"'[ B6
<br />0.16 0,48 0.54 0.38 0.70 0,76 0.92 1,46 1.67 '2.0 1.86 1.92 1.92 '2:41 ,2!4~ '2,33 t~,511L.27, '2 1.92 loB
<br />
<br />0,16 0.54 0.54 0.54 0.86 0,60 0.76 1.08 1.14 1.5B 1.79 1.42 1.37 1.57 1.63 1.42 1.60 1.88 1.31 1.36 1.31
<br />0,16 0.54 0.54 0.54 0.64 0,60 0.76 0,44 0,60 0,92 1.20 1.36 1.09 1.40 1.02 1.22 1.50 1,48 1.38 1.32 0.9
<br />Figure 7
<br />Shows Total Rainfall for Each Grid Square
<br />
<br />The estimated volume of the rainfall was approximately 13,242 acre-feet of
<br />water and it fell over a roughly 8 mile by 8-mile volume covered by the storm's
<br />i-inch or greater coverage area. It is little wonder that flooding occurred given
<br />the volume of rain.
<br />
<br />12
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