(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 05-18 to 09-15 Historical Observations Month FCST %Avg 90% 50% 10% Sep 2289 95 1849 2410 3058 May 4362 110 2803 3959 6032 Jun 9585 104 6783 9221 14298 Jul 7161 95 5640 7543 11176 Aug 6130 100 4603 6142 8439 Total 29526 101 21677 29275 43003 Historical Observations mm-dd FCST 90% 50% 10% 05-18 164792 91850 126000 196500 05-19 161595 95410 124500 196700 05-20 158106 99210 127000 202700 05-21 156945 95400 131500 217800 05-22 156088 98010 131000 211400 05-23 155493 95230 137000 220300 05-24 155302 101300 146000 225500 05-25 155506 102100 147000 225800 05-26 154627 104200 146500 223000 05-27 154697 106100 149000 218000 05-28 155217 102000 151500 219800 05-29 155944 105200 157500 222800 05-30 157145 108300 161000 227200 05-31 158319 109200 161000 234400 06-01 159396 111200 162500 236400 06-02 160559 112800 163000 240900 06-03 161461 109600 164000 240100 06-04 162003 113100 167500 236500 06-05 162141 118300 165000 232300 06-06 166997 120100 164000 230700 06-07 179991 119500 162500 233300 06-08 179341 120200 159000 241900 06-09 178190 127100 159000 246600 06-10 176540 124200 161000 245800 06-11 174863 127000 159000 250300 06-12 173231 114800 159000 252100 06-13 171467 116800 154500 250700 06-14 169409 117500 153500 250700 06-15 167167 116700 150500 249800 06-16 164994 115800 146000 249300 06-17 163748 113300 150000 249300 06-18 161289 118900 154000 247900 06-19 158801 118800 146000 242900 06-20 156752 115700 150000 239400 06-21 156735 112200 151000 237000 06-22 156968 114800 152500 235300 06-23 154962 109100 154500 252400 06-24 152708 109400 153500 253900 06-25 150359 106700 153500 244500 06-26 147711 102700 154000 236700 06-27 144835 104500 151500 221000 06-28 142308 102500 146000 211800 06-29 140123 104400 142500 221900 06-30 138315 102800 141000 229000 07-01 137729 101400 140500 222100 07-02 139359 100550 139500 215800 07-03 137904 100200 136000 206200 07-04 135086 98160 137500 199200 07-05 132981 100600 135500 201100 07-06 131460 98150 137500 194100 07-07 130073 99590 135500 197200 07-08 128709 99520 136500 194700 07-09 127326 95970 132000 194400 07-10 125761 97480 133000 197000 07-11 120044 92960 131000 195800 07-12 119597 90690 130000 202800 07-13 118951 92180 129500 203300 07-14 117765 98530 128500 198300 07-15 116863 94700 123500 195600 07-16 115518 94310 118500 183900 07-17 113549 93510 116500 186500 07-18 111182 88490 116000 180900 07-19 109438 90680 115000 180700 07-20 107961 88160 113000 184800 07-21 106805 89970 113500 178300 07-22 105869 85520 112500 172600 07-23 105022 84050 114000 168000 07-24 104317 86290 113000 167200 07-25 103601 86170 109000 160500 07-26 102973 86170 112000 142800 07-27 102394 83690 111500 142800 07-28 101744 84550 110000 143000 07-29 101058 82610 110500 140700 07-30 100400 81290 107000 142400 07-31 99819 78080 106000 143200 08-01 100581 83300 102500 148800 08-02 103981 80570 105000 155000 08-03 103566 80650 104000 153500 08-04 103101 79400 105000 148800 08-05 102614 79580 105000 151000 08-06 102205 78460 108000 149600 08-07 101825 78450 107000 146700 08-08 101558 71860 106000 145200 08-09 101281 78120 106500 150100 08-10 100944 75900 106000 155800 08-11 100697 75200 102500 149000 08-12 100484 79320 103500 146500 08-13 100225 78740 101000 148100 08-14 99940 75250 102000 144900 08-15 99638 70650 102500 148700 08-16 99362 74440 103000 140600 08-17 99116 75680 98400 131600 08-18 98885 74710 99700 126100 08-19 98633 73570 99950 133200 08-20 98400 70950 101000 133100 08-21 98231 70690 97050 131400 08-22 98103 73980 97250 131100 08-23 98064 78640 99250 127200 08-24 97991 75140 96900 121700 08-25 97892 72520 94000 121700 08-26 97781 75110 89850 121200 08-27 97600 72420 91500 124600 08-28 97374 70770 89950 121000 08-29 97165 66170 94400 124300 08-30 96986 66280 89100 115300 08-31 96981 64550 89450 109700 09-01 91821 62930 85800 109400 09-02 76076 62000 82000 105500 09-03 75869 64670 80150 101900 09-04 75885 59640 79550 99810 09-05 75996 58000 81950 101800 09-06 75982 57950 83100 104900 09-07 75972 58380 81650 104000 09-08 75890 61710 81200 103900 09-09 75823 62950 81550 100900 09-10 75861 63100 80250 102700 09-11 75895 63420 81850 102900 09-12 75877 64450 78200 102560 09-13 75820 63760 78350 101000 09-14 75689 64610 80700 101900 09-15 75605 64780 78900 99190