(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 04-29 to 08-27 Historical Observations Month FCST %Avg 90% 50% 10% Aug 5290 98 4072 5422 7506 Apr 461 124 270 370 574 May 8637 113 5410 7659 11614 Jun 10342 112 6783 9221 14298 Jul 7956 105 5640 7543 11176 Total 32685 108 22175 30216 45168 Historical Observations mm-dd FCST 90% 50% 10% 04-29 118070 67360 94350 145700 04-30 114446 68750 92450 143600 05-01 112604 67620 94850 143800 05-02 112867 69860 94550 141900 05-03 115400 76330 98350 141800 05-04 119265 70710 100750 145500 05-05 123277 73460 104500 151700 05-06 128342 70910 106000 161200 05-07 133072 75820 107000 164500 05-08 136927 70050 113500 161900 05-09 140613 71600 116000 163000 05-10 144439 73480 113000 157800 05-11 147522 81110 112000 161600 05-12 148981 78440 112000 168100 05-13 148982 77950 113500 179100 05-14 148067 89730 112500 190600 05-15 146936 86560 117000 194000 05-16 146237 88820 123000 195100 05-17 146012 92310 127500 193400 05-18 145928 91850 126000 196500 05-19 146423 95410 124500 196700 05-20 146399 99210 127000 202700 05-21 145913 95400 131500 217800 05-22 145332 98010 131000 211400 05-23 144685 95230 137000 220300 05-24 143565 101300 146000 225500 05-25 140912 102100 147000 225800 05-26 139893 104200 146500 223000 05-27 137720 106100 149000 218000 05-28 136669 102000 151500 219800 05-29 142055 105200 157500 222800 05-30 167211 108300 161000 227200 05-31 173090 109200 161000 234400 06-01 170115 111200 162500 236400 06-02 179223 112800 163000 240900 06-03 187864 109600 164000 240100 06-04 188217 113100 167500 236500 06-05 187047 118300 165000 232300 06-06 193348 120100 164000 230700 06-07 197179 119500 162500 233300 06-08 196230 120200 159000 241900 06-09 194942 127100 159000 246600 06-10 193345 124200 161000 245800 06-11 191609 127000 159000 250300 06-12 189930 114800 159000 252100 06-13 188127 116800 154500 250700 06-14 184290 117500 153500 250700 06-15 182533 116700 150500 249800 06-16 178963 115800 146000 249300 06-17 172063 113300 150000 249300 06-18 167941 118900 154000 247900 06-19 165886 118800 146000 242900 06-20 164400 115700 150000 239400 06-21 163269 112200 151000 237000 06-22 161832 114800 152500 235300 06-23 159794 109100 154500 252400 06-24 157895 109400 153500 253900 06-25 155803 106700 153500 244500 06-26 152603 102700 154000 236700 06-27 150019 104500 151500 221000 06-28 148474 102500 146000 211800 06-29 146867 104400 142500 221900 06-30 145285 102800 141000 229000 07-01 145244 101400 140500 222100 07-02 148076 100550 139500 215800 07-03 144715 100200 136000 206200 07-04 143108 98160 137500 199200 07-05 141843 100600 135500 201100 07-06 140191 98150 137500 194100 07-07 138507 99590 135500 197200 07-08 136510 99520 136500 194700 07-09 134382 95970 132000 194400 07-10 132885 97480 133000 197000 07-11 131659 92960 131000 195800 07-12 133521 90690 130000 202800 07-13 133355 92180 129500 203300 07-14 132190 98530 128500 198300 07-15 131261 94700 123500 195600 07-16 129876 94310 118500 183900 07-17 128070 93510 116500 186500 07-18 126537 88490 116000 180900 07-19 125590 90680 115000 180700 07-20 124331 88160 113000 184800 07-21 123289 89970 113500 178300 07-22 122266 85520 112500 172600 07-23 121309 84050 114000 168000 07-24 120490 86290 113000 167200 07-25 119708 86170 109000 160500 07-26 119059 86170 112000 142800 07-27 118430 83690 111500 142800 07-28 117633 84550 110000 143000 07-29 116742 82610 110500 140700 07-30 115983 81290 107000 142400 07-31 115365 78080 106000 143200 08-01 112953 83300 102500 148800 08-02 106354 80570 105000 155000 08-03 103828 80650 104000 153500 08-04 102570 79400 105000 148800 08-05 101249 79580 105000 151000 08-06 100382 78460 108000 149600 08-07 99868 78450 107000 146700 08-08 99543 71860 106000 145200 08-09 99238 78120 106500 150100 08-10 98877 75900 106000 155800 08-11 98600 75200 102500 149000 08-12 98357 79320 103500 146500 08-13 98071 78740 101000 148100 08-14 97766 75250 102000 144900 08-15 97448 70650 102500 148700 08-16 97136 74440 103000 140600 08-17 96876 75680 98400 131600 08-18 96624 74710 99700 126100 08-19 96352 73570 99950 133200 08-20 96104 70950 101000 133100 08-21 95922 70690 97050 131400 08-22 95798 73980 97250 131100 08-23 95757 78640 99250 127200 08-24 95687 75140 96900 121700 08-25 95563 72520 94000 121700 08-26 95430 75110 89850 121200 08-27 95261 72420 91500 124600