(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 04-06 to 08-04 Historical Observations Month FCST %Avg 90% 50% 10% Aug 668 81 642 826 1202 Apr 5103 130 2755 3940 5848 May 8721 114 5410 7659 11614 Jun 11444 124 6783 9221 14298 Jul 7549 100 5640 7543 11176 Total 33485 115 21231 29190 44138 Historical Observations mm-dd FCST 90% 50% 10% 04-06 98175 45740 67650 94970 04-07 98194 45430 67400 99800 04-08 98580 47820 67650 102990 04-09 98688 50220 67950 109570 04-10 98749 47430 67400 108800 04-11 98901 46570 68500 102800 04-12 99332 49380 71100 110800 04-13 100280 49580 69100 113200 04-14 101381 51430 76500 111700 04-15 102115 53220 76200 104700 04-16 102438 56070 78050 107600 04-17 102832 53750 79050 106000 04-18 103186 53460 79100 111000 04-19 103139 54200 82400 119600 04-20 102728 55510 82200 113800 04-21 102517 53710 82750 115800 04-22 102725 55480 87650 119900 04-23 103339 61220 85600 122900 04-24 103728 62210 86600 129400 04-25 104698 64350 86200 135200 04-26 108973 67210 88600 134300 04-27 109174 66280 90200 139300 04-28 109520 63120 92300 145500 04-29 109760 67360 94350 145700 04-30 110285 68750 92450 143600 05-01 121340 67620 94850 143800 05-02 120288 69860 94550 141900 05-03 117913 76330 98350 141800 05-04 118620 70710 100750 145500 05-05 119369 73460 104500 151700 05-06 120612 70910 106000 161200 05-07 123166 75820 107000 164500 05-08 125406 70050 113500 161900 05-09 126574 71600 116000 163000 05-10 127311 73480 113000 157800 05-11 127882 81110 112000 161600 05-12 128933 78440 112000 168100 05-13 130706 77950 113500 179100 05-14 133198 89730 112500 190600 05-15 138655 86560 117000 194000 05-16 142333 88820 123000 195100 05-17 144820 92310 127500 193400 05-18 147647 91850 126000 196500 05-19 151054 95410 124500 196700 05-20 153679 99210 127000 202700 05-21 155453 95400 131500 217800 05-22 156831 98010 131000 211400 05-23 158161 95230 137000 220300 05-24 159713 101300 146000 225500 05-25 161019 102100 147000 225800 05-26 162400 104200 146500 223000 05-27 162666 106100 149000 218000 05-28 163660 102000 151500 219800 05-29 164770 105200 157500 222800 05-30 166286 108300 161000 227200 05-31 167554 109200 161000 234400 06-01 175853 111200 162500 236400 06-02 181915 112800 163000 240900 06-03 183079 109600 164000 240100 06-04 183606 113100 167500 236500 06-05 183364 118300 165000 232300 06-06 183138 120100 164000 230700 06-07 182991 119500 162500 233300 06-08 182530 120200 159000 241900 06-09 181500 127100 159000 246600 06-10 179851 124200 161000 245800 06-11 177942 127000 159000 250300 06-12 175972 114800 159000 252100 06-13 200945 116800 154500 250700 06-14 211583 117500 153500 250700 06-15 209935 116700 150500 249800 06-16 206363 115800 146000 249300 06-17 210810 113300 150000 249300 06-18 215089 118900 154000 247900 06-19 211271 118800 146000 242900 06-20 206726 115700 150000 239400 06-21 205574 112200 151000 237000 06-22 206024 114800 152500 235300 06-23 203757 109100 154500 252400 06-24 197359 109400 153500 253900 06-25 191662 106700 153500 244500 06-26 187562 102700 154000 236700 06-27 186165 104500 151500 221000 06-28 185428 102500 146000 211800 06-29 182601 104400 142500 221900 06-30 180269 102800 141000 229000 07-01 168332 101400 140500 222100 07-02 161847 100550 139500 215800 07-03 158521 100200 136000 206200 07-04 152096 98160 137500 199200 07-05 143080 100600 135500 201100 07-06 145343 98150 137500 194100 07-07 143764 99590 135500 197200 07-08 141489 99520 136500 194700 07-09 139501 95970 132000 194400 07-10 137383 97480 133000 197000 07-11 135709 92960 131000 195800 07-12 134680 90690 130000 202800 07-13 132937 92180 129500 203300 07-14 130962 98530 128500 198300 07-15 128608 94700 123500 195600 07-16 121628 94310 118500 183900 07-17 117481 93510 116500 186500 07-18 114923 88490 116000 180900 07-19 112029 90680 115000 180700 07-20 109561 88160 113000 184800 07-21 108100 89970 113500 178300 07-22 106677 85520 112500 172600 07-23 103398 84050 114000 168000 07-24 101011 86290 113000 167200 07-25 100045 86170 109000 160500 07-26 98980 86170 112000 142800 07-27 96533 83690 111500 142800 07-28 93195 84550 110000 143000 07-29 91046 82610 110500 140700 07-30 89789 81290 107000 142400 07-31 88416 78080 106000 143200 08-01 86416 83300 102500 148800 08-02 84987 80570 105000 155000 08-03 83664 80650 104000 153500 08-04 81714 79400 105000 148800