(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 05-11 to 09-08 Historical Observations Month FCST %Avg 90% 50% 10% Sep 1101 85 962 1300 1648 May 6278 112 3983 5580 8574 Jun 9740 106 6783 9221 14298 Jul 7835 104 5640 7543 11176 Aug 6450 105 4603 6142 8439 Total 31403 105 21971 29786 44135 Historical Observations mm-dd FCST 90% 50% 10% 05-11 129529 81110 112000 161600 05-12 130981 78440 112000 168100 05-13 133357 77950 113500 179100 05-14 137550 89730 112500 190600 05-15 140835 86560 117000 194000 05-16 150068 88820 123000 195100 05-17 153333 92310 127500 193400 05-18 158926 91850 126000 196500 05-19 159906 95410 124500 196700 05-20 158064 99210 127000 202700 05-21 156665 95400 131500 217800 05-22 156486 98010 131000 211400 05-23 156163 95230 137000 220300 05-24 151410 101300 146000 225500 05-25 147146 102100 147000 225800 05-26 147888 104200 146500 223000 05-27 152620 106100 149000 218000 05-28 156013 102000 151500 219800 05-29 157379 105200 157500 222800 05-30 164428 108300 161000 227200 05-31 166940 109200 161000 234400 06-01 167261 111200 162500 236400 06-02 167734 112800 163000 240900 06-03 167616 109600 164000 240100 06-04 165670 113100 167500 236500 06-05 164914 118300 165000 232300 06-06 176891 120100 164000 230700 06-07 184273 119500 162500 233300 06-08 183315 120200 159000 241900 06-09 181992 127100 159000 246600 06-10 180346 124200 161000 245800 06-11 178609 127000 159000 250300 06-12 176904 114800 159000 252100 06-13 175050 116800 154500 250700 06-14 172956 117500 153500 250700 06-15 170694 116700 150500 249800 06-16 168461 115800 146000 249300 06-17 167091 113300 150000 249300 06-18 165110 118900 154000 247900 06-19 162870 118800 146000 242900 06-20 160837 115700 150000 239400 06-21 159364 112200 151000 237000 06-22 157987 114800 152500 235300 06-23 155892 109100 154500 252400 06-24 153646 109400 153500 253900 06-25 151326 106700 153500 244500 06-26 148742 102700 154000 236700 06-27 145960 104500 151500 221000 06-28 140565 102500 146000 211800 06-29 130482 104400 142500 221900 06-30 129331 102800 141000 229000 07-01 129699 101400 140500 222100 07-02 142515 100550 139500 215800 07-03 142020 100200 136000 206200 07-04 141009 98160 137500 199200 07-05 142256 100600 135500 201100 07-06 140609 98150 137500 194100 07-07 139021 99590 135500 197200 07-08 137054 99520 136500 194700 07-09 135109 95970 132000 194400 07-10 133736 97480 133000 197000 07-11 132545 92960 131000 195800 07-12 132904 90690 130000 202800 07-13 132269 92180 129500 203300 07-14 131136 98530 128500 198300 07-15 130274 94700 123500 195600 07-16 128903 94310 118500 183900 07-17 126959 93510 116500 186500 07-18 124627 88490 116000 180900 07-19 122905 90680 115000 180700 07-20 121460 88160 113000 184800 07-21 120331 89970 113500 178300 07-22 119426 85520 112500 172600 07-23 118587 84050 114000 168000 07-24 117911 86290 113000 167200 07-25 117217 86170 109000 160500 07-26 116603 86170 112000 142800 07-27 116021 83690 111500 142800 07-28 115384 84550 110000 143000 07-29 114721 82610 110500 140700 07-30 114087 81290 107000 142400 07-31 113541 78080 106000 143200 08-01 112100 83300 102500 148800 08-02 108976 80570 105000 155000 08-03 108526 80650 104000 153500 08-04 108064 79400 105000 148800 08-05 107592 79580 105000 151000 08-06 107205 78460 108000 149600 08-07 106839 78450 107000 146700 08-08 106560 71860 106000 145200 08-09 106282 78120 106500 150100 08-10 105951 75900 106000 155800 08-11 105718 75200 102500 149000 08-12 105513 79320 103500 146500 08-13 105261 78740 101000 148100 08-14 104980 75250 102000 144900 08-15 104683 70650 102500 148700 08-16 104403 74440 103000 140600 08-17 104169 75680 98400 131600 08-18 103942 74710 99700 126100 08-19 103688 73570 99950 133200 08-20 103462 70950 101000 133100 08-21 103311 70690 97050 131400 08-22 103205 73980 97250 131100 08-23 103173 78640 99250 127200 08-24 103122 75140 96900 121700 08-25 103026 72520 94000 121700 08-26 102924 75110 89850 121200 08-27 102751 72420 91500 124600 08-28 102527 70770 89950 121000 08-29 102307 66170 94400 124300 08-30 102143 66280 89100 115300 08-31 100075 64550 89450 109700 09-01 71662 62930 85800 109400 09-02 69062 62000 82000 105500 09-03 69032 64670 80150 101900 09-04 69053 59640 79550 99810 09-05 69165 58000 81950 101800 09-06 69143 57950 83100 104900 09-07 69123 58380 81650 104000 09-08 69067 61710 81200 103900