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Water Supply Forecasts Northwest River Forecast Center Thursday June 18, 2009 at 20:44 GMT Observed precipitation through the 15th Future precip assumed to be normal No snow included Observed runoff through May note: current month runoff based on OBSERVED + ESP to the end of JUN UPPER COLUMBIA BASINS Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 7860.0 82 9130.0 95 6590.0 69 9619. 9199 6176 81 FEB-JUL 7630.0 81 8900.0 95 6360.0 68 9372. 8909 6176 81 APR-SEP 10200.0 82 11400.0 91 8900.0 71 12500. 11570 6176 81 REVELSTOKE, BC JAN-JUL 11400.0 82 12300.0 89 10300.0 74 13880. 13420 9357 83 ARROW LAKES INFLOW JAN-JUL 17000.0 81 18900.0 90 15200.0 73 20960. 19230 14500 80 FEB-JUL 16400.0 81 18200.0 90 14600.0 72 20230. 18670 14500 80 APR-SEP 20500.0 82 22300.0 89 18700.0 74 25110. 22910 14500 80 BIRCHBANK, BC (1) JAN-JUL 31000.0 80 35100.0 90 26900.0 69 38930. 36130 27940 80 APR-SEP 34700.0 80 38800.0 89 30600.0 70 43500. 40800 27940 80 GRAND COULEE, WA (1) JAN-JUL 52300.0 83 58100.0 92 46500.0 74 62900. 59650 48990 82 APR-SEP 54100.0 85 59900.0 94 48300.0 75 63990. 62860 48990 82 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 57600.0 84 64500.0 94 50700.0 74 68910. 64110 53510 82 APR-SEP 59100.0 85 66000.0 95 52200.0 75 69540. 67150 53510 82 THE DALLES NR, OR (1) JAN-JUL 92000.0 86 100000.0 93 83700.0 78 107300. 99210 93910 87 APR-AUG 82400.0 89 90700.0 97 74100.0 80 93090. 93200 93910 87 APR-SEP 87300.0 88 95600.0 97 79100.0 80 98650. 97910 93910 87 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 4620.0 73 5670.0 90 3570.0 57 6306. 5516 4236 71 APR-AUG 4610.0 74 5660.0 91 3560.0 57 6248. 5539 4236 71 APR-SEP 4900.0 74 5950.0 90 3850.0 58 6638. 5887 4236 71 LEONIA, ID (1) APR-JUL 5320.0 76 6620.0 94 4020.0 57 7041. 6568 5574 71 APR-SEP 6140.0 76 7440.0 92 4840.0 60 8125. 7516 5574 71 BONNERS FERRY, ID APR-JUL 5750.0 75 7040.0 92 4470.0 59 7619. 7099 6063 71 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 12200.0 76 13900.0 87 10500.0 66 16010. 14250 11190 74 APR-SEP 12700.0 77 14700.0 89 10800.0 66 16450. 15060 11190 74 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1500.0 83 1850.0 103 1150.0 64 1800. 1691 1257 85 FEB-JUL 1440.0 82 1790.0 103 1090.0 62 1746. 1638 1257 85 APR-SEP 1840.0 83 2190.0 98 1490.0 67 2227. 2111 1257 85 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 935.0 133 1150.0 163 710.0 101 704. 852 1085 127 MISSOULA ABV, MT APR-SEP 2020.0 127 2270.0 142 1770.0 111 1595. 1798 2211 124 MISSOULA BLO, MT APR-SEP 3610.0 122 3980.0 134 3230.0 109 2962. 3420 3820 117 ST. REGIS, MT (1) APR-SEP 4480.0 115 5120.0 131 3840.0 98 3907. 4509 4869 112 PLAINS NR, MT (1) APR-SEP 10700.0 97 12100.0 109 9340.0 84 11060. 12090 10740 92 WHITEHORSE RAPIDS, ID (1) APR-SEP 12100.0 97 13800.0 111 10400.0 83 12460. 13630 11920 89 BLACKFOOT RIVER BONNER NR, MT APR-SEP 1080.0 121 1170.0 131 995.0 112 892. 946 1126 120 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1580.0 116 1760.0 129 1410.0 103 1364. 1597 1657 113 Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1410.0 78 1600.0 89 1230.0 68 1801. 1865 1263 73 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1540.0 89 1740.0 100 1340.0 77 1740. 2103 1379 81 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2050.0 92 2470.0 111 1640.0 74 2224. 2506 2023 91 APR-SEP 1990.0 94 2400.0 113 1570.0 74 2124. 2530 2023 91 UPPER/MIDDLE COLUMBIA BASINS Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5090.0 87 5820.0 100 4360.0 75 5825. 6676 4695 81 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 5920.0 88 7100.0 106 4750.0 71 6713. 7562 5909 86 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 640.0 79 820.0 101 460.0 57 814. 849 797 73 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13300.0 96 15200.0 109 11400.0 82 13910. 15810 14330 92 APR-JUL 12200.0 96 14100.0 111 10300.0 81 12740. 14580 14330 92 BOX CANYON BLO, WA (1) APR-SEP 13500.0 96 15500.0 110 11500.0 82 14090. 16110 14500 91 KETTLE RIVER LAURIER NR, WA APR-SEP 1530.0 78 1790.0 91 1270.0 64 1972. 1517 1357 70 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 805.0 103 900.0 116 710.0 91 778. 1302 1085 85 APR-JUL 765.0 104 860.0 116 670.0 91 739. 1258 1085 85 COEUR D'ALENE LAKE IN, ID APR-JUL 2770.0 109 3050.0 120 2490.0 98 2552. 3826 4269 98 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 3120.0 114 3180.0 116 3050.0 111 2744. 4128 4392 99 ST JOE RIVER CALDER, ID APR-SEP 1290.0 107 1400.0 116 1180.0 98 1205. 1656 1617 104 APR-JUL 1220.0 107 1340.0 118 1110.0 98 1136. 1571 1617 104 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1010.0 57 1440.0 82 570.0 32 1766. 1542 1125 62 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 875.0 65 1180.0 87 575.0 43 1350. 1189 978 69 APR-SEP 940.0 65 1240.0 86 640.0 44 1450. 1259 978 69 METHOW RIVER PATEROS NR, WA (1) APR-SEP 685.0 70 880.0 89 490.0 50 985. 926 724 76 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1030.0 87 1240.0 105 825.0 70 1185. 1157 1047 91 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1390.0 85 1900.0 116 885.0 54 1635. 1521 1707 93 YAKIMA AND MAINSTEM SNAKE BASINS Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 139.0 105 162.0 122 116.0 87 133. 174 223 98 CLE ELUM, WA APR-SEP 1000.0 111 1130.0 125 870.0 96 903. 1013 1477 110 PARKER NR, WA APR-SEP 2250.0 117 2560.0 133 1950.0 102 1918. 2325 3229 107 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 126.0 105 144.0 120 108.0 90 120. 150 200 100 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 440.0 98 500.0 112 375.0 84 448. 479 588 101 NACHES RIVER NACHES NR, WA APR-SEP 1030.0 123 1160.0 139 905.0 108 837. 991 1299 115 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 145.0 108 173.0 129 116.0 87 134. 155 177 99 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 265.0 110 295.0 122 235.0 97 242. 247 311 101 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 50.0 109 65.0 141 35.0 76 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 865.0 106 1020.0 125 710.0 87 815. 894 898 102 APR-SEP 960.0 106 1120.0 124 805.0 89 904. 970 898 102 PALISADES RES INFLOW, ID (1) APR-JUL 3430.0 103 3860.0 116 2990.0 90 3331. 3352 3786 101 APR-SEP 3990.0 103 4420.0 114 3550.0 92 3875. 3850 3786 101 HEISE NR, ID APR-JUL 3740.0 105 4220.0 119 3250.0 91 3561. 3644 4269 103 APR-SEP 4370.0 105 4860.0 117 3880.0 93 4159. 4282 4269 103 SHELLEY NR, ID (1) APR-JUL 4620.0 104 5150.0 116 4090.0 92 4428. 4541 5690 105 APR-SEP 5560.0 104 6080.0 114 5030.0 94 5324. 5320 5690 105 BLACKFOOT NR, ID (1) APR-JUL 4650.0 101 5210.0 113 4090.0 89 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 3050.0 94 3780.0 117 2330.0 72 3242. 2731 4956 89 MILNER, ID APR-JUL 1170.0 95 1750.0 143 590.0 48 1228. 160 1199 43 KING HILL, ID (1) APR-JUL 2660.0 87 3420.0 112 1910.0 63 3045. 1765 4641 67 MURPHY NR, ID (1) APR-JUL 2750.0 89 3580.0 116 1920.0 62 3092. 1549 4908 68 WEISER, ID (1) JAN-JUL 6590.0 67 7920.0 81 5260.0 54 9793. 5966 7774 65 APR-JUL 4670.0 81 6000.0 104 3340.0 58 5765. 3926 7774 65 APR-SEP 6100.0 85 7430.0 103 4780.0 66 7192. 5218 7774 65 BROWNLEE RES INFLOW APR-JUL 5100.0 81 6820.0 108 3380.0 54 6313. 4367 8709 67 APR-SEP 6110.0 78 7830.0 100 4390.0 56 7801. 5699 8709 67 HELLS CANYON, ID (1) APR-JUL 5180.0 80 6640.0 102 3720.0 57 6493. 4738 9004 68 APR-SEP 6630.0 83 8090.0 101 5170.0 65 7977. 6060 9004 68 LOWER GRANITE RES IN, WA (1) JAN-JUL 29200.0 97 32500.0 108 25900.0 86 30020. 27520 30480 93 FEB-SEP 29800.0 98 33000.0 109 26500.0 87 30370. 28890 30480 93 APR-JUL 23200.0 108 26400.0 123 19900.0 92 21550. 22830 30480 93 APR-SEP 25700.0 106 29000.0 120 22400.0 93 24140. 25390 30480 93 UPPER SNAKE BASINS Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 455.0 115 505.0 128 405.0 103 394. 389 406 111 SALT RIVER ETNA NR, WY APR-JUL 395.0 115 455.0 133 335.0 98 342. 311 516 109 HENRYS FORK ASHTON NR, ID APR-JUL 440.0 77 510.0 89 365.0 64 571. 518 823 84 ST. ANTHONY, ID APR-JUL 675.0 92 785.0 107 565.0 77 734. 703 1135 92 REXBURG NR, ID APR-JUL 995.0 64 1170.0 75 820.0 53 1559. 905 1462 66 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 255.0 66 310.0 80 197.0 51 386. 308 307 62 TETON RIVER ST. ANTHONY NR, ID APR-JUL 410.0 102 485.0 120 335.0 83 403. 445 486 100 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 118.0 83 158.0 111 78.0 55 142. 80 147 82 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 61.0 71 85.0 99 37.0 43 86. 41 71 68 PORTNEUF RIVER TOPAZ, ID APR-SEP 70.0 74 82.0 86 58.0 61 95. 61 91 73 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 21.0 72 26.0 90 15.0 52 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 215.0 84 290.0 113 144.0 56 256. 185 241 86 MAGIC RESERVOIR INFLOW, ID APR-JUL 220.0 76 270.0 93 168.0 58 291. 172 231 68 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 62.0 71 79.0 91 45.0 52 87. 50 76 71 MIDDLE SNAKE BASINS Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 171.0 82 215.0 103 127.0 61 208. 155 202 77 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 375.0 61 440.0 72 310.0 51 613. 452 475 59 OWYHEE RES OUTFLOW APR-JUL 28.0 13 36.0 17 24.0 11 217. 53 52 14 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 615.0 97 715.0 112 515.0 81 636. 655 740 96 BOISE NR, ID (1) APR-JUL 1250.0 88 1470.0 104 1030.0 73 1414. 1290 1499 83 PARMA NR, ID APR-JUL 385.0 65 580.0 98 186.0 31 593. 319 645 58 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 460.0 85 560.0 103 360.0 66 542. 442 536 84 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 54.0 49 59.0 54 49.0 45 110. 85 76 51 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 50.0 62 54.0 67 46.0 57 81. 80 68 65 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1540.0 95 1860.0 115 1220.0 75 1617. 1701 1862 89 EMMETT NR, ID APR-JUL 1160.0 93 1510.0 121 815.0 65 1246. 1394 1481 81 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 130.0 97 154.0 115 106.0 79 134. 141 142 93 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 485.0 98 575.0 116 395.0 80 495. 525 604 91 WEISER RIVER WEISER NR, ID (1) APR-JUL 285.0 73 390.0 100 176.0 45 391. 479 463 61 BURNT RIVER HEREFORD NR, OR MAR-JUL 44.0 86 48.0 94 41.0 80 51. 57 58 86 LOWER SNAKE AND CENTRAL OREGON BASINS Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 60.0 86 70.0 100 51.0 73 70. 80 IMNAHA RIVER IMNAHA, OR MAR-JUL 335.0 111 375.0 125 290.0 96 301. 337 346 106 SALMON RIVER SALMON, ID (1) APR-JUL 990.0 116 1270.0 148 710.0 83 857. 806 1209 107 WHITEBIRD, ID (1) JAN-JUL 7520.0 111 8460.0 124 6590.0 97 6805. 7310 7361 108 APR-JUL 6690.0 114 7620.0 130 5760.0 98 5851. 6560 7361 108 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 300.0 120 320.0 129 285.0 114 249. 347 350 111 APR-JUL 250.0 136 270.0 147 230.0 125 184. 301 350 111 TROY, OR (1) MAR-JUL 2080.0 132 2470.0 157 1690.0 107 1578. 1971 2415 119 APR-JUL 1800.0 141 2190.0 172 1410.0 111 1274. 1761 2415 119 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 5250.0 113 6270.0 135 4240.0 91 4645. 5729 6515 112 SPALDING, ID (1) JAN-JUL 10300.0 106 11700.0 121 8850.0 91 9683. 10500 10620 106 APR-JUL 8290.0 111 9710.0 131 6880.0 93 7435. 9382 10620 106 APR-SEP 8730.0 111 10100.0 129 7320.0 93 7849. 9851 10620 106 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3390.0 96 3810.0 107 2970.0 84 3547. 3823 3622 96 APR-JUL 2610.0 99 3020.0 114 2190.0 83 2644. 3434 3622 96 APR-SEP 2770.0 99 3190.0 114 2360.0 84 2803. 3659 3622 96 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 90.0 170 98.0 185 82.0 155 53. 92 151 141 UMATILLA RIVER GIBBON NR, OR APR-JUL 126.0 173 136.0 186 116.0 159 73. 127 207 128 PENDLETON, OR APR-JUL 310.0 208 325.0 218 295.0 198 149. 285 505 136 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 166.0 104 184.0 115 148.0 93 160. 0 APR-JUL 128.0 104 146.0 119 110.0 89 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 735.0 123 820.0 137 650.0 109 597. 883 968 95 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1180.0 102 1440.0 125 910.0 79 1153. 1362 1314 87 APR-SEP 975.0 113 1240.0 143 705.0 82 865. 1152 1314 87 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 520.0 98 545.0 103 495.0 94 528. 504 785 105 Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 130.0 71 142.0 77 117.0 64 184. 143 152 57 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 20.0 56 24.0 67 16.3 45 36. 33 WESTSIDE AND SOUTHERN OREGON BASINS Jun-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 5610.0 88 6740.0 106 4470.0 70 6365. 6790 7573 87 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3480.0 108 4260.0 132 2700.0 84 3217. 3468 4144 100 APR-JUL 1940.0 115 2720.0 161 1160.0 69 1689. 2328 4144 100 APR-SEP 2210.0 115 2990.0 156 1430.0 74 1922. 2615 4144 100 CASTLE ROCK, WA APR-SEP 2930.0 111 4010.0 152 1850.0 70 2639. 3330 5862 94 JAN-JUL 4950.0 105 6030.0 128 3870.0 82 4709. 4998 5862 94 LEWIS RIVER ARIEL, WA JAN-JUL 2230.0 95 2340.0 100 2120.0 90 2351. 2397 2742 83 MCKENZIE RIVER VIDA NR, OR APR-SEP 1430.0 119 1510.0 126 1340.0 112 1201. 1674 2654 99 S. SANTIAM RIVER WATERLOO, OR APR-SEP 650.0 111 760.0 129 540.0 92 587. 895 1943 90 N. SANTIAM RIVER MEHAMA, OR APR-SEP 1070.0 128 1200.0 144 945.0 113 834. 1413 2362 101 WILLAMETTE RIVER SALEM, OR APR-SEP 4940.0 103 5530.0 115 4350.0 91 4804. 6084 13340 81 CLACKAMAS RIVER ESTACADA, OR APR-SEP 1000.0 134 1090.0 146 915.0 122 748. 1174 1825 96 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 149.0 99 170.0 113 127.0 84 151. 164 192 86 JAN-JUL 172.0 95 193.0 107 151.0 83 181. 180 192 86 ROGUE RIVER RAYGOLD, OR APR-SEP 840.0 94 900.0 101 780.0 88 889. 1076 1641 82 JAN-JUL 1380.0 87 1440.0 91 1320.0 83 1584. 1697 1641 82 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 71.0 80 94.0 106 49.0 55 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 73.0 57 119.0 92 28.0 22 129. 79 83 54 APR-SEP 57.0 58 103.0 104 11.5 12 99. 82 83 54 Forecasts are selected from those prepared by: National Weather Service Natural Resource Conservation Service B.C. Hydro and Power Authority. Project inflow forecasts have been coordinated with the U.S. Army Corp of Engineers and U.S. Bureau of Reclamation. All forecasts are in thousands of acre-feet. All averages are for the period 1971 through 2000 NOAA/NWS/Northwest River Forecast Center NNNN $$
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