(CIBW1) COLUMBIA - AT INTL BOUNDARY Discharge Monthly Volumes (kaf) from 09-21 to 01-19 Historical Observations Month FCST %Avg 90% 50% 10% Jan 3201 95 2466 3385 4671 Sep 1475 96 1250 1539 1876 Oct 3807 85 3536 4480 5634 Nov 3731 81 3693 4606 5766 Dec 5473 96 4686 5730 7210 Total 17688 90 15630 19740 25157 Historical Observations mm-dd FCST 90% 50% 10% 09-21 69095 61970 78400 100880 09-22 71678 64040 78000 96550 09-23 76595 60730 78300 97890 09-24 77335 61850 79750 97860 09-25 77105 64580 77900 92420 09-26 77015 66020 76950 92370 09-27 77108 65220 76200 89940 09-28 76831 63320 76550 94640 09-29 74229 64520 77150 93760 09-30 67002 58260 76800 89980 10-01 60927 57920 74700 97460 10-02 60927 54970 75000 92760 10-03 61488 57820 74200 97160 10-04 61136 59000 71000 95730 10-05 60360 58960 73500 104430 10-06 60119 57810 72900 101780 10-07 60068 58020 72050 106040 10-08 60105 58070 69400 100340 10-09 60143 60010 70800 86330 10-10 60176 59970 71700 87800 10-11 60234 57530 72050 86640 10-12 60546 59830 70950 92870 10-13 60791 58480 70800 88280 10-14 60861 56370 71250 91830 10-15 61233 54530 72050 89990 10-16 61683 56100 72500 80840 10-17 62054 59060 71900 86720 10-18 62486 55610 70000 85560 10-19 62711 60620 71950 86240 10-20 62857 58060 74150 84440 10-21 63161 59420 74600 85160 10-22 63596 59160 74100 86440 10-23 63949 58360 73800 87790 10-24 63792 56810 73400 86430 10-25 63568 57040 74950 87840 10-26 63477 57930 76450 86520 10-27 63505 58310 74550 92450 10-28 63598 54550 74000 94650 10-29 63519 53860 71900 92310 10-30 63525 52530 73000 98010 10-31 63374 56200 75850 100330 11-01 63876 56570 75000 91600 11-02 65801 58230 77000 92060 11-03 65837 62410 76000 96670 11-04 65810 61640 80150 99200 11-05 65915 60670 78450 93460 11-06 65768 63140 77400 92310 11-07 65651 59130 76850 90600 11-08 65819 60910 73200 91620 11-09 65640 63820 72900 88300 11-10 65284 57920 72950 90670 11-11 65049 60200 71650 87580 11-12 64986 56810 73250 86890 11-13 65007 56630 72100 94400 11-14 65177 62060 75300 94720 11-15 64958 58050 76550 96580 11-16 60089 58790 75650 94920 11-17 59300 60680 77500 99240 11-18 61294 55370 77550 101480 11-19 61471 57320 77000 101610 11-20 61192 62840 78900 103700 11-21 61103 65580 81550 103520 11-22 60665 61370 79400 99960 11-23 60328 62730 80700 93780 11-24 60058 63670 79050 100000 11-25 59825 63230 78200 100900 11-26 59558 67400 82500 105900 11-27 59281 69050 84300 104700 11-28 59051 73170 81250 108300 11-29 58947 71120 80400 104900 11-30 58849 71670 80000 98350 12-01 65997 75020 82850 106890 12-02 90192 72380 86850 110600 12-03 91262 75470 90300 110900 12-04 91141 77820 94350 110700 12-05 90828 80020 91050 116700 12-06 90640 78660 91250 118700 12-07 90533 78770 89700 120200 12-08 90443 78740 92250 118600 12-09 90321 77430 92850 120800 12-10 90235 79220 94950 121000 12-11 90211 79510 95550 122800 12-12 89936 80990 96000 119800 12-13 89681 82930 98250 123900 12-14 89668 80930 99550 122700 12-15 89546 79600 95600 120900 12-16 89441 76440 95450 118900 12-17 89365 77750 96500 120800 12-18 89257 80350 97000 119900 12-19 89110 77970 97250 123000 12-20 89033 78400 97500 122700 12-21 88967 78820 96650 119700 12-22 88904 74720 95100 113900 12-23 88862 70760 94300 115500 12-24 88792 71460 90500 113000 12-25 88734 68420 91850 112900 12-26 89039 70540 91400 111900 12-27 90118 74370 91050 112400 12-28 90073 73490 91550 112900 12-29 90005 68690 91150 119000 12-30 89942 73120 90200 115900 12-31 89744 70230 90700 118200 01-01 89442 64300 84100 114000 01-02 89253 69640 86900 112900 01-03 88353 67940 87950 112000 01-04 87426 68310 86600 122300 01-05 86531 72470 89650 122900 01-06 85396 66720 92950 128100 01-07 84386 66120 91750 127700 01-08 83790 67090 91750 123800 01-09 83685 70050 90850 124900 01-10 83664 63130 93350 127300 01-11 83649 67120 92850 124700 01-12 83628 66350 92900 123700 01-13 83602 63100 92350 131000 01-14 83589 62300 93900 124200 01-15 83575 60550 92750 121900 01-16 83571 62140 88350 128000 01-17 83579 62060 87750 124000 01-18 83625 62670 87500 128300 01-19 83675 61470 82850 133600