(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 04-22 to 08-20 Historical Observations Month FCST %Avg 90% 50% 10% Aug 2686 65 3044 4102 5763 Apr 1035 65 1142 1594 2411 May 5994 78 5410 7659 11614 Jun 8538 93 6783 9221 14298 Jul 5506 73 5640 7543 11176 Total 23760 79 22019 30120 45263 Historical Observations mm-dd FCST 90% 50% 10% 04-22 57875 55480 87650 119900 04-23 58797 61220 85600 122900 04-24 58148 62210 86600 129400 04-25 56614 64350 86200 135200 04-26 55800 67210 88600 134300 04-27 56972 66280 90200 139300 04-28 58370 63120 92300 145500 04-29 59301 67360 94350 145700 04-30 60184 68750 92450 143600 05-01 61424 67620 94850 143800 05-02 63443 69860 94550 141900 05-03 66087 76330 98350 141800 05-04 68560 70710 100750 145500 05-05 69966 73460 104500 151700 05-06 71630 70910 106000 161200 05-07 72736 75820 107000 164500 05-08 74255 70050 113500 161900 05-09 75412 71600 116000 163000 05-10 76133 73480 113000 157800 05-11 78610 81110 112000 161600 05-12 84585 78440 112000 168100 05-13 85964 77950 113500 179100 05-14 87998 89730 112500 190600 05-15 89993 86560 117000 194000 05-16 93008 88820 123000 195100 05-17 97827 92310 127500 193400 05-18 104250 91850 126000 196500 05-19 109349 95410 124500 196700 05-20 112834 99210 127000 202700 05-21 115405 95400 131500 217800 05-22 117685 98010 131000 211400 05-23 119990 95230 137000 220300 05-24 122352 101300 146000 225500 05-25 124216 102100 147000 225800 05-26 126564 104200 146500 223000 05-27 129005 106100 149000 218000 05-28 130355 102000 151500 219800 05-29 131077 105200 157500 222800 05-30 131025 108300 161000 227200 05-31 131151 109200 161000 234400 06-01 138769 111200 162500 236400 06-02 161391 112800 163000 240900 06-03 161773 109600 164000 240100 06-04 160709 113100 167500 236500 06-05 159083 118300 165000 232300 06-06 157714 120100 164000 230700 06-07 156550 119500 162500 233300 06-08 155356 120200 159000 241900 06-09 153839 127100 159000 246600 06-10 152203 124200 161000 245800 06-11 150211 127000 159000 250300 06-12 147950 114800 159000 252100 06-13 145646 116800 154500 250700 06-14 143724 117500 153500 250700 06-15 142037 116700 150500 249800 06-16 144724 115800 146000 249300 06-17 145581 113300 150000 249300 06-18 143591 118900 154000 247900 06-19 141169 118800 146000 242900 06-20 139019 115700 150000 239400 06-21 137124 112200 151000 237000 06-22 135584 114800 152500 235300 06-23 134068 109100 154500 252400 06-24 132533 109400 153500 253900 06-25 131041 106700 153500 244500 06-26 129513 102700 154000 236700 06-27 127972 104500 151500 221000 06-28 126674 102500 146000 211800 06-29 125542 104400 142500 221900 06-30 124539 102800 141000 229000 07-01 121568 101400 140500 222100 07-02 114538 100550 139500 215800 07-03 113168 100200 136000 206200 07-04 111181 98160 137500 199200 07-05 109160 100600 135500 201100 07-06 107428 98150 137500 194100 07-07 101658 99590 135500 197200 07-08 97137 99520 136500 194700 07-09 95045 95970 132000 194400 07-10 93548 97480 133000 197000 07-11 92331 92960 131000 195800 07-12 91177 90690 130000 202800 07-13 90056 92180 129500 203300 07-14 88862 98530 128500 198300 07-15 87976 94700 123500 195600 07-16 86437 94310 118500 183900 07-17 84629 93510 116500 186500 07-18 83165 88490 116000 180900 07-19 82078 90680 115000 180700 07-20 80954 88160 113000 184800 07-21 79958 89970 113500 178300 07-22 79085 85520 112500 172600 07-23 78274 84050 114000 168000 07-24 77582 86290 113000 167200 07-25 76904 86170 109000 160500 07-26 76283 86170 112000 142800 07-27 75723 83690 111500 142800 07-28 75424 84550 110000 143000 07-29 75500 82610 110500 140700 07-30 75218 81290 107000 142400 07-31 74662 78080 106000 143200 08-01 73550 83300 102500 148800 08-02 70698 80570 105000 155000 08-03 70157 80650 104000 153500 08-04 69691 79400 105000 148800 08-05 69209 79580 105000 151000 08-06 68783 78460 108000 149600 08-07 68401 78450 107000 146700 08-08 68086 71860 106000 145200 08-09 67777 78120 106500 150100 08-10 67432 75900 106000 155800 08-11 67164 75200 102500 149000 08-12 66949 79320 103500 146500 08-13 66725 78740 101000 148100 08-14 66486 75250 102000 144900 08-15 66198 70650 102500 148700 08-16 65928 74440 103000 140600 08-17 65659 75680 98400 131600 08-18 65399 74710 99700 126100 08-19 65162 73570 99950 133200 08-20 64967 70950 101000 133100