(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 06-22 to 10-20 Historical Observations Month FCST %Avg 90% 50% 10% Oct 3317 116 2298 2861 3655 Jun 2424 91 1898 2675 4177 Jul 7007 93 5640 7543 11176 Aug 6059 99 4603 6142 8439 Sep 4485 95 3726 4725 5902 Total 23293 97 18164 23947 33349 Historical Observations mm-dd FCST 90% 50% 10% 06-22 134052 114800 152500 235300 06-23 133527 109100 154500 252400 06-24 132587 109400 153500 253900 06-25 133656 106700 153500 244500 06-26 134833 102700 154000 236700 06-27 136157 104500 151500 221000 06-28 139975 102500 146000 211800 06-29 139707 104400 142500 221900 06-30 138140 102800 141000 229000 07-01 135730 101400 140500 222100 07-02 132568 100550 139500 215800 07-03 132080 100200 136000 206200 07-04 130789 98160 137500 199200 07-05 128761 100600 135500 201100 07-06 121721 98150 137500 194100 07-07 118635 99590 135500 197200 07-08 117432 99520 136500 194700 07-09 116135 95970 132000 194400 07-10 115085 97480 133000 197000 07-11 114347 92960 131000 195800 07-12 113631 90690 130000 202800 07-13 112914 92180 129500 203300 07-14 112367 98530 128500 198300 07-15 111982 94700 123500 195600 07-16 111419 94310 118500 183900 07-17 110986 93510 116500 186500 07-18 110693 88490 116000 180900 07-19 109978 90680 115000 180700 07-20 108915 88160 113000 184800 07-21 108116 89970 113500 178300 07-22 107359 85520 112500 172600 07-23 106413 84050 114000 168000 07-24 105868 86290 113000 167200 07-25 105927 86170 109000 160500 07-26 107587 86170 112000 142800 07-27 107079 83690 111500 142800 07-28 106108 84550 110000 143000 07-29 105097 82610 110500 140700 07-30 104276 81290 107000 142400 07-31 103636 78080 106000 143200 08-01 102935 83300 102500 148800 08-02 103586 80570 105000 155000 08-03 103524 80650 104000 153500 08-04 103290 79400 105000 148800 08-05 102906 79580 105000 151000 08-06 101187 78460 108000 149600 08-07 100685 78450 107000 146700 08-08 100396 71860 106000 145200 08-09 100081 78120 106500 150100 08-10 99702 75900 106000 155800 08-11 99433 75200 102500 149000 08-12 99184 79320 103500 146500 08-13 98887 78740 101000 148100 08-14 98568 75250 102000 144900 08-15 98235 70650 102500 148700 08-16 97917 74440 103000 140600 08-17 97662 75680 98400 131600 08-18 97414 74710 99700 126100 08-19 97127 73570 99950 133200 08-20 96857 70950 101000 133100 08-21 96664 70690 97050 131400 08-22 96522 73980 97250 131100 08-23 96481 78640 99250 127200 08-24 96386 75140 96900 121700 08-25 96245 72520 94000 121700 08-26 96101 75110 89850 121200 08-27 95899 72420 91500 124600 08-28 95644 70770 89950 121000 08-29 95411 66170 94400 124300 08-30 95222 66280 89100 115300 08-31 95204 64550 89450 109700 09-01 86137 62930 85800 109400 09-02 74860 62000 82000 105500 09-03 74393 64670 80150 101900 09-04 75205 59640 79550 99810 09-05 75605 58000 81950 101800 09-06 75552 57950 83100 104900 09-07 75510 58380 81650 104000 09-08 75416 61710 81200 103900 09-09 75343 62950 81550 100900 09-10 75372 63100 80250 102700 09-11 75378 63420 81850 102900 09-12 75347 64450 78200 102560 09-13 75272 63760 78350 101000 09-14 75108 64610 80700 101900 09-15 74979 64780 78900 99190 09-16 74954 62530 79550 96010 09-17 74938 59500 77850 96030 09-18 75016 62350 77300 98820 09-19 75123 64450 77900 96270 09-20 75167 67100 79150 100560 09-21 75113 61970 78400 100880 09-22 74961 64040 78000 96550 09-23 74748 60730 78300 97890 09-24 74563 61850 79750 97860 09-25 74511 64580 77900 92420 09-26 74512 66020 76950 92370 09-27 74616 65220 76200 89940 09-28 74661 63320 76550 94640 09-29 74682 64520 77150 93760 09-30 74737 58260 76800 89980 10-01 75054 57920 74700 97460 10-02 81207 54970 75000 92760 10-03 85566 57820 74200 97160 10-04 84791 59000 71000 95730 10-05 83779 58960 73500 104430 10-06 83369 57810 72900 101780 10-07 83234 58020 72050 106040 10-08 83202 58070 69400 100340 10-09 83159 60010 70800 86330 10-10 83103 59970 71700 87800 10-11 83188 57530 72050 86640 10-12 83660 59830 70950 92870 10-13 83987 58480 70800 88280 10-14 84083 56370 71250 91830 10-15 84507 54530 72050 89990 10-16 84908 56100 72500 80840 10-17 85201 59060 71900 86720 10-18 85569 55610 70000 85560 10-19 85633 60620 71950 86240 10-20 85642 58060 74150 84440