(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 04-20 to 08-18 Historical Observations Month FCST %Avg 90% 50% 10% Aug 3748 101 2757 3703 5235 Apr 2669 139 1359 1921 2866 May 9380 122 5410 7659 11614 Jun 9787 106 6783 9221 14298 Jul 8871 118 5640 7543 11176 Total 34455 115 21949 30048 45190 Historical Observations mm-dd FCST 90% 50% 10% 04-20 107833 55510 82200 113800 04-21 110000 53710 82750 115800 04-22 113104 55480 87650 119900 04-23 120011 61220 85600 122900 04-24 125520 62210 86600 129400 04-25 128769 64350 86200 135200 04-26 129624 67210 88600 134300 04-27 128836 66280 90200 139300 04-28 127919 63120 92300 145500 04-29 127288 67360 94350 145700 04-30 127113 68750 92450 143600 05-01 128573 67620 94850 143800 05-02 130628 69860 94550 141900 05-03 139928 76330 98350 141800 05-04 140874 70710 100750 145500 05-05 141475 73460 104500 151700 05-06 142019 70910 106000 161200 05-07 142925 75820 107000 164500 05-08 143955 70050 113500 161900 05-09 144707 71600 116000 163000 05-10 145147 73480 113000 157800 05-11 145343 81110 112000 161600 05-12 145581 78440 112000 168100 05-13 146248 77950 113500 179100 05-14 147135 89730 112500 190600 05-15 148114 86560 117000 194000 05-16 149613 88820 123000 195100 05-17 151581 92310 127500 193400 05-18 153701 91850 126000 196500 05-19 156325 95410 124500 196700 05-20 158413 99210 127000 202700 05-21 159940 95400 131500 217800 05-22 161092 98010 131000 211400 05-23 162139 95230 137000 220300 05-24 162849 101300 146000 225500 05-25 163238 102100 147000 225800 05-26 164213 104200 146500 223000 05-27 165974 106100 149000 218000 05-28 165746 102000 151500 219800 05-29 165570 105200 157500 222800 05-30 171038 108300 161000 227200 05-31 185885 109200 161000 234400 06-01 186105 111200 162500 236400 06-02 186225 112800 163000 240900 06-03 185220 109600 164000 240100 06-04 183628 113100 167500 236500 06-05 182481 118300 165000 232300 06-06 181754 120100 164000 230700 06-07 181297 119500 162500 233300 06-08 180610 120200 159000 241900 06-09 179452 127100 159000 246600 06-10 177842 124200 161000 245800 06-11 175995 127000 159000 250300 06-12 174232 114800 159000 252100 06-13 172445 116800 154500 250700 06-14 170734 117500 153500 250700 06-15 168940 116700 150500 249800 06-16 167066 115800 146000 249300 06-17 165066 113300 150000 249300 06-18 162574 118900 154000 247900 06-19 160196 118800 146000 242900 06-20 158225 115700 150000 239400 06-21 153031 112200 151000 237000 06-22 152389 114800 152500 235300 06-23 150836 109100 154500 252400 06-24 149328 109400 153500 253900 06-25 147715 106700 153500 244500 06-26 145101 102700 154000 236700 06-27 144806 104500 151500 221000 06-28 145291 102500 146000 211800 06-29 144382 104400 142500 221900 06-30 102489 102800 141000 229000 07-01 87776 101400 140500 222100 07-02 89350 100550 139500 215800 07-03 92604 100200 136000 206200 07-04 172510 98160 137500 199200 07-05 175147 100600 135500 201100 07-06 172247 98150 137500 194100 07-07 169585 99590 135500 197200 07-08 166158 99520 136500 194700 07-09 163030 95970 132000 194400 07-10 160371 97480 133000 197000 07-11 158414 92960 131000 195800 07-12 157416 90690 130000 202800 07-13 155585 92180 129500 203300 07-14 157601 98530 128500 198300 07-15 159422 94700 123500 195600 07-16 155963 94310 118500 183900 07-17 152568 93510 116500 186500 07-18 150496 88490 116000 180900 07-19 148270 90680 115000 180700 07-20 145935 88160 113000 184800 07-21 144211 89970 113500 178300 07-22 142776 85520 112500 172600 07-23 139929 84050 114000 168000 07-24 137729 86290 113000 167200 07-25 136803 86170 109000 160500 07-26 135677 86170 112000 142800 07-27 133709 83690 111500 142800 07-28 130520 84550 110000 143000 07-29 128425 82610 110500 140700 07-30 127361 81290 107000 142400 07-31 126068 78080 106000 143200 08-01 124187 83300 102500 148800 08-02 122696 80570 105000 155000 08-03 115060 80650 104000 153500 08-04 109738 79400 105000 148800 08-05 107673 79580 105000 151000 08-06 106099 78460 108000 149600 08-07 105333 78450 107000 146700 08-08 104549 71860 106000 145200 08-09 103295 78120 106500 150100 08-10 101994 75900 106000 155800 08-11 101893 75200 102500 149000 08-12 101359 79320 103500 146500 08-13 100239 78740 101000 148100 08-14 98759 75250 102000 144900 08-15 97677 70650 102500 148700 08-16 96789 74440 103000 140600 08-17 96587 75680 98400 131600 08-18 95945 74710 99700 126100