Missouri River Basin    
Calendar Year 2011
Preliminary Forecast 1-Dec-11
     
 Reach Fort Garrison Oahe Fort Gavins Sioux Summation Summation Accumulated
 Above Peck Randall Point City above above Summation
Gavins Sioux above
Point City Sioux City
Values in 1000 Acre Feet
(History)
  JAN 2011 431 299 120 86 67 273 1,003 1,276 1,276
 NORMAL  312 261 12 25 100 40 710 750 750
DEPARTURE 119 38 108 61 -33 233 293 526 526
 % OF NORM 138% 115% 998% 346% 67% 682% 141% 170% 170%
 
 FEB 2011 580 457 318 217 236 524 1,808 2,333 3,609
NORMAL 360 356 90 49 130 92 985 1,077 1,827
DEPARTURE 220 101 228 168 106 432 823 1,256 1,782
 % OF NORM 161% 128% 354% 443% 182% 570% 184% 217% 198%
 MAR 2011 1,049 1,567 1,806 686 392 1,152 5,501 6,653 10,262
NORMAL 596 1,003 567 209 206 299 2,581 2,880 4,707
DEPARTURE 453 564 1,239 477 186 853 2,920 3,773 5,555
% OF NORM 176% 156% 319% 328% 190% 385% 213% 231% 218%
 APR 2011 895 2,748 1,617 238 134 2,081 5,632 7,713 17,975
NORMAL 649 1,080 481 144 180 360 2,534 2,894 7,601
DEPARTURE 246 1,668 1,136 94 -46 1,721 3,098 4,819 10,374
% OF NORM 138% 254% 336% 165% 74% 578% 222% 267% 236%
         
  MAY 2011 2,871 4,414 1,259 305 17 1,603 8,866 10,468 28,443
NORMAL 1,081 1,245 312 147 186 292 2,971 3,263 10,864
DEPARTURE 1,790 3,169 947 158 -169 1,311 5,895 7,205 17,579
% OF NORM 266% 355% 403% 207% 9% 549% 298% 321% 262%
         
 JUN 2011 4,035 6,467 1,009 932 301 1,092 12,744 13,836 42,279
NORMAL 1,612 2,667 423 152 178 286 5,032 5,318 16,182
DEPARTURE 2,423 3,800 586 780 123 806 7,712 8,518 26,097
% OF NORM 250% 242% 239% 613% 169% 382% 253% 260% 261%
           
 JUL 2011 2,093 5,560 393 357 266 1,336 8,668 10,004 52,283
NORMAL 819 1,776 179 57 137 218 2,968 3,186 19,368
DEPARTURE 1,274 3,784 214 300 129 1,118 5,700 6,818 32,915
% OF NORM 255% 313% 220% 626% 194% 613% 292% 314% 270%
 AUG 2011 538 1,374 210 288 270 551 2,680 3,231 55,514
NORMAL 353 604 65 39 115 131 1,176 1,307 20,675
DEPARTURE 185 770 145 249 155 420 1,504 1,924 34,839
% OF NORM 152% 227% 323% 738% 235% 421% 228% 247% 269%
 
 SEP 2011 260 515 67 158 159 252 1,159 1,410 56,925
NORMAL 333 452 111 38 111 99 1,045 1,144 21,819
DEPARTURE -73 63 -44 120 48 153 114 266 35,106
% OF NORM 78% 114% 60% 414% 143% 254% 111% 123% 261%
 OCT 2011 405 704 151 14 77 286 1,351 1,637 58,562
NORMAL 385 523 66 5 120 78 1,099 1,177 22,996
DEPARTURE 20 181 85 9 -43 208 252 460 35,566
% OF NORM 105% 135% 229% 280% 64% 367% 123% 139% 255%
 
 NOV 2011 414 387 54 18 83 304 957 1,260 59,822
NORMAL 384 398 67 6 118 76 973 1,049 24,045
DEPARTURE 30 -11 -13 12 -35 228 -17 211 35,777
% OF NORM 108% 97% 81% 300% 70% 400% 98% 120% 249%
(Forecast)
 DEC 2011 350 270 0 16 100 200 736 936 60,758
NORMAL 329 247 0 12 100 52 688 740 24,785
DEPARTURE 21 23 0 4 0 148 48 196 35,973
% OF NORM 106% 109% 100% 133% 100% 385% 107% 126% 245%
Calendar Year Totals
  13,921 24,762 7,005 3,315 2,102 9,653 51,105 60,758  
NORMAL 7,213 10,612 2,373 883 1,681 2,023 22,762 24,785  
DEPARTURE 6,708 14,150 4,632 2,432 421 7,630 28,343 35,973  
% OF NORM 193% 233% 295% 375% 125% 477% 225% 245%