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Water Supply Forecasts Northwest River Forecast Center Friday February 06, 2009 at 20:15 GMT Full month of observed precipitation Future precip assumed to be normal Snow included in this run Full complement runoff applied through JAN UPPER COLUMBIA BASINS Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 9170.0 95 10900.0 113 7460.0 78 9619. 9199 1515 96 FEB-JUL 8930.0 95 10600.0 113 7220.0 77 9372. 8909 1515 96 APR-SEP 11900.0 95 13600.0 109 10200.0 82 12500. 11570 1515 96 REVELSTOKE, BC JAN-JUL 13400.0 97 15000.0 108 12000.0 86 13880. 13420 2337 102 ARROW LAKES INFLOW JAN-JUL 20200.0 96 22900.0 109 17500.0 83 20960. 19230 3622 92 FEB-JUL 19600.0 97 22300.0 110 16900.0 84 20230. 18670 3622 92 APR-SEP 24300.0 97 27000.0 108 21600.0 86 25110. 22910 3622 92 BIRCHBANK, BC (1) JAN-JUL 36000.0 92 43300.0 111 28800.0 74 38930. 36130 6318 96 APR-SEP 40300.0 93 47500.0 109 33000.0 76 43500. 40800 6318 96 GRAND COULEE, WA (1) JAN-JUL 57000.0 91 69500.0 110 44500.0 71 62900. 59650 9931 91 APR-SEP 57900.0 90 70400.0 110 45500.0 71 63990. 62860 9931 91 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 62600.0 91 76900.0 112 48300.0 70 68910. 64110 11060 94 APR-SEP 62900.0 90 77200.0 111 48600.0 70 69540. 67150 11060 94 THE DALLES NR, OR (1) JAN-JUL 92900.0 87 115000.0 107 70300.0 66 107300. 99210 21040 91 APR-AUG 79700.0 86 102000.0 110 57100.0 61 93090. 93200 21040 91 APR-SEP 84500.0 86 107000.0 108 61900.0 63 98650. 97910 21040 91 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5280.0 84 6810.0 108 3750.0 59 6306. 5516 875 78 APR-AUG 5250.0 84 6790.0 109 3720.0 60 6248. 5539 875 78 APR-SEP 5580.0 84 7120.0 107 4050.0 61 6638. 5887 875 78 LEONIA, ID (1) APR-JUL 5850.0 83 7750.0 110 3950.0 56 7041. 6568 1028 71 APR-SEP 6750.0 83 8650.0 106 4860.0 60 8125. 7516 1028 71 BONNERS FERRY, ID APR-JUL 6380.0 84 8060.0 106 4700.0 62 7619. 7099 1073 70 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 13700.0 86 16800.0 105 10800.0 67 16010. 14250 2156 83 APR-SEP 14100.0 86 17400.0 106 11000.0 67 16450. 15060 2156 83 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1750.0 97 2170.0 121 1330.0 74 1800. 1691 324 108 FEB-JUL 1700.0 97 2120.0 121 1280.0 73 1746. 1638 324 108 APR-SEP 2170.0 97 2590.0 116 1750.0 79 2227. 2111 324 108 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 700.0 99 1090.0 155 310.0 44 704. 852 269 121 MISSOULA ABV, MT APR-SEP 1590.0 100 2130.0 134 1050.0 66 1595. 1798 467 126 MISSOULA BLO, MT APR-SEP 2880.0 97 3710.0 125 2060.0 70 2962. 3420 763 123 ST. REGIS, MT (1) APR-SEP 3740.0 96 5390.0 138 2090.0 53 3907. 4509 1025 124 PLAINS NR, MT (1) APR-SEP 10100.0 91 13400.0 121 6780.0 61 11060. 12090 1935 97 WHITEHORSE RAPIDS, ID (1) APR-SEP 11000.0 88 14800.0 119 7260.0 58 12460. 13630 2044 89 BLACKFOOT RIVER BONNER NR, MT APR-SEP 890.0 100 1250.0 140 525.0 59 892. 946 197 132 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1280.0 94 1640.0 120 930.0 68 1364. 1597 333 133 Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1500.0 83 1880.0 104 1120.0 62 1801. 1865 168 66 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1490.0 86 1840.0 106 1130.0 65 1740. 2103 171 71 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2100.0 94 2700.0 121 1500.0 67 2224. 2506 303 101 APR-SEP 2000.0 94 2590.0 122 1400.0 66 2124. 2530 303 101 UPPER/MIDDLE COLUMBIA BASINS Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5110.0 88 6530.0 112 3690.0 63 5825. 6676 647 78 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6000.0 89 7830.0 117 4170.0 62 6713. 7562 1003 101 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 650.0 80 945.0 116 360.0 44 814. 849 139 71 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 12100.0 87 16300.0 117 7900.0 57 13910. 15810 2561 93 APR-JUL 11100.0 87 15300.0 120 6950.0 55 12740. 14580 2561 93 BOX CANYON BLO, WA (1) APR-SEP 12300.0 87 16100.0 114 8450.0 60 14090. 16110 2675 94 KETTLE RIVER LAURIER NR, WA APR-SEP 1720.0 87 2200.0 112 1250.0 63 1972. 1517 124 80 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 630.0 81 885.0 114 380.0 49 778. 1302 193 73 APR-JUL 600.0 81 850.0 115 350.0 47 739. 1258 193 73 COEUR D'ALENE LAKE IN, ID APR-JUL 2100.0 82 2870.0 112 1330.0 52 2552. 3826 823 94 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2240.0 82 2400.0 87 2080.0 76 2744. 4128 851 92 ST JOE RIVER CALDER, ID APR-SEP 995.0 83 1290.0 107 695.0 58 1205. 1656 325 128 APR-JUL 955.0 84 1250.0 110 660.0 58 1136. 1571 325 128 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1210.0 69 2010.0 114 400.0 23 1766. 1542 284 93 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 970.0 72 1550.0 115 380.0 28 1350. 1189 190 105 APR-SEP 1040.0 72 1630.0 112 460.0 32 1450. 1259 190 105 METHOW RIVER PATEROS NR, WA (1) APR-SEP 700.0 71 1110.0 113 290.0 29 985. 926 141 121 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 960.0 81 1190.0 100 730.0 62 1185. 1157 277 134 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1400.0 86 1980.0 121 830.0 51 1635. 1521 549 137 YAKIMA AND MAINSTEM SNAKE BASINS Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 110.0 83 144.0 108 75.0 56 133. 174 95 115 CLE ELUM, WA APR-SEP 750.0 83 925.0 102 575.0 64 903. 1013 573 141 PARKER NR, WA APR-SEP 1700.0 89 2110.0 110 1280.0 67 1918. 2325 1147 131 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 96.0 80 124.0 103 67.0 56 120. 150 82 123 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 380.0 85 470.0 105 290.0 65 448. 479 215 138 NACHES RIVER NACHES NR, WA APR-SEP 715.0 85 885.0 106 550.0 66 837. 991 381 140 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 123.0 92 156.0 116 89.0 66 134. 155 55 110 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 215.0 89 265.0 110 158.0 65 242. 247 99 111 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 44.0 96 63.0 137 25.0 54 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 765.0 94 955.0 117 575.0 71 815. 894 116 81 APR-SEP 850.0 94 1040.0 115 660.0 73 904. 970 116 81 PALISADES RES INFLOW, ID (1) APR-JUL 3130.0 94 4000.0 120 2250.0 68 3331. 3352 710 92 APR-SEP 3640.0 94 4510.0 116 2770.0 71 3875. 3850 710 92 HEISE NR, ID APR-JUL 3340.0 94 4310.0 121 2370.0 67 3561. 3644 867 98 APR-SEP 3900.0 94 4880.0 117 2930.0 70 4159. 4282 867 98 SHELLEY NR, ID (1) APR-JUL 4290.0 97 5280.0 119 3300.0 75 4428. 4541 1259 94 APR-SEP 5160.0 97 6150.0 116 4170.0 78 5324. 5320 1259 94 BLACKFOOT NR, ID (1) APR-JUL 4320.0 94 5330.0 116 3310.0 72 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2760.0 85 4150.0 128 1370.0 42 3242. 2731 1429 82 MILNER, ID APR-JUL 490.0 40 1600.0 130 172.0 14 1228. 160 149 15 KING HILL, ID (1) APR-JUL 1950.0 64 3130.0 103 765.0 25 3045. 1765 1679 58 MURPHY NR, ID (1) APR-JUL 2100.0 68 3350.0 108 855.0 28 3092. 1549 1852 63 WEISER, ID (1) JAN-JUL 6070.0 62 8920.0 91 3230.0 33 9793. 5966 2512 61 APR-JUL 3640.0 63 6480.0 112 790.0 14 5765. 3926 2512 61 APR-SEP 5040.0 70 7890.0 110 2200.0 31 7192. 5218 2512 61 BROWNLEE RES INFLOW APR-JUL 4020.0 64 6780.0 107 1260.0 20 6313. 4367 2807 64 APR-SEP 5420.0 69 8180.0 105 2660.0 34 7801. 5699 2807 64 HELLS CANYON, ID (1) APR-JUL 4090.0 63 7140.0 110 1040.0 16 6493. 4738 2830 65 APR-SEP 5510.0 69 8560.0 107 2460.0 31 7977. 6060 2830 65 LOWER GRANITE RES IN, WA (1) JAN-JUL 25100.0 84 34400.0 115 15800.0 53 30020. 27520 6195 82 FEB-SEP 25400.0 84 34700.0 114 16000.0 53 30370. 28890 6195 82 APR-JUL 18000.0 84 27300.0 127 8670.0 40 21550. 22830 6195 82 APR-SEP 20200.0 84 29500.0 122 10800.0 45 24140. 25390 6195 82 UPPER SNAKE BASINS Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 410.0 104 525.0 133 300.0 76 394. 389 57 87 SALT RIVER ETNA NR, WY APR-JUL 350.0 102 500.0 146 205.0 60 342. 311 127 95 HENRYS FORK ASHTON NR, ID APR-JUL 490.0 86 625.0 109 350.0 61 571. 518 318 91 ST. ANTHONY, ID APR-JUL 590.0 80 850.0 116 330.0 45 734. 703 358 89 REXBURG NR, ID APR-JUL 1290.0 83 1700.0 109 880.0 56 1559. 905 437 65 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 340.0 88 420.0 109 260.0 67 386. 308 66 54 TETON RIVER ST. ANTHONY NR, ID APR-JUL 335.0 83 485.0 120 186.0 46 403. 445 115 97 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 110.0 77 190.0 134 31.0 22 142. 80 37 71 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 82.0 95 125.0 145 39.0 45 86. 41 7 52 PORTNEUF RIVER TOPAZ, ID APR-SEP 82.0 86 109.0 115 54.0 57 95. 61 26 68 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 23.0 79 43.0 148 3.5 12 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 186.0 73 315.0 123 56.0 22 256. 185 42 90 MAGIC RESERVOIR INFLOW, ID APR-JUL 193.0 66 400.0 137 0.0 0 291. 172 19 59 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 63.0 72 110.0 126 15.4 18 87. 50 12 75 MIDDLE SNAKE BASINS Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 189.0 91 305.0 147 73.0 35 208. 155 20 63 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 505.0 82 955.0 156 51.0 8 613. 452 77 60 OWYHEE RES OUTFLOW APR-JUL 38.0 18 475.0 219 5.1 2 217. 53 12 44 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 525.0 83 690.0 108 365.0 57 636. 655 100 88 BOISE NR, ID (1) APR-JUL 1120.0 79 1620.0 115 630.0 45 1414. 1290 211 79 PARMA NR, ID APR-JUL 245.0 41 695.0 117 91.0 15 593. 319 211 72 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 420.0 77 540.0 100 305.0 56 542. 442 71 87 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 60.0 55 126.0 115 0.0 0 110. 85 18 71 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 47.0 58 82.0 101 11.5 14 81. 80 15 79 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1230.0 76 1800.0 111 670.0 41 1617. 1701 291 80 EMMETT NR, ID APR-JUL 920.0 74 1540.0 124 390.0 31 1246. 1394 257 66 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 103.0 77 142.0 106 64.0 48 134. 141 21 97 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 385.0 78 550.0 111 220.0 44 495. 525 95 74 WEISER RIVER WEISER NR, ID (1) APR-JUL 285.0 73 520.0 133 48.0 12 391. 479 66 51 BURNT RIVER HEREFORD NR, OR MAR-JUL 37.0 73 61.0 120 12.6 25 51. 57 11 92 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 52.0 74 73.0 104 31.0 44 70. 80 IMNAHA RIVER IMNAHA, OR MAR-JUL 245.0 81 335.0 111 151.0 50 301. 337 46 93 SALMON RIVER SALMON, ID (1) APR-JUL 700.0 82 1080.0 126 325.0 38 857. 806 285 92 WHITEBIRD, ID (1) JAN-JUL 5990.0 88 8050.0 118 3940.0 58 6805. 7310 1079 90 APR-JUL 5150.0 88 7210.0 123 3100.0 53 5851. 6560 1079 90 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 215.0 86 295.0 118 133.0 53 249. 347 47 108 APR-JUL 159.0 86 240.0 130 79.0 43 184. 301 47 108 TROY, OR (1) MAR-JUL 1390.0 88 1960.0 124 825.0 52 1578. 1971 370 94 APR-JUL 1110.0 87 1680.0 132 545.0 43 1274. 1761 370 94 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4500.0 97 6260.0 135 2740.0 59 4645. 5729 1052 127 SPALDING, ID (1) JAN-JUL 9460.0 98 12400.0 128 6490.0 67 9683. 10500 1836 116 APR-JUL 7050.0 95 10000.0 134 4070.0 55 7435. 9382 1836 116 APR-SEP 7450.0 95 10400.0 133 4470.0 57 7849. 9851 1836 116 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3420.0 96 4560.0 129 2290.0 65 3547. 3823 725 111 APR-JUL 2480.0 94 3620.0 137 1340.0 51 2644. 3434 725 111 APR-SEP 2610.0 93 3750.0 134 1470.0 52 2803. 3659 725 111 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 53.0 100 71.0 134 35.0 66 53. 92 36 98 UMATILLA RIVER GIBBON NR, OR APR-JUL 78.0 107 109.0 149 47.0 64 73. 127 49 110 PENDLETON, OR APR-JUL 160.0 107 230.0 154 89.0 60 149. 285 100 100 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 137.0 86 194.0 121 79.0 49 160. 0 APR-JUL 106.0 86 163.0 133 48.0 39 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 505.0 85 775.0 130 235.0 39 597. 883 93 60 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1060.0 92 1550.0 134 575.0 50 1153. 1362 155 59 APR-SEP 795.0 92 1280.0 148 310.0 36 865. 1152 155 59 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 510.0 97 580.0 110 440.0 83 528. 504 394 118 Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 157.0 85 250.0 136 64.0 35 184. 143 15 30 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 34.0 94 50.0 139 18.0 50 36. 33 WESTSIDE AND SOUTHERN OREGON BASINS Feb-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 5200.0 82 6830.0 107 3580.0 56 6365. 6790 2949 90 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3470.0 108 4570.0 142 2370.0 74 3217. 3468 1861 105 APR-JUL 1540.0 91 2640.0 156 440.0 26 1689. 2328 1861 105 APR-SEP 1750.0 91 2840.0 148 650.0 34 1922. 2615 1861 105 CASTLE ROCK, WA APR-SEP 2350.0 89 3890.0 147 805.0 31 2639. 3330 2749 100 JAN-JUL 5130.0 109 6680.0 142 3590.0 76 4709. 4998 2749 100 LEWIS RIVER ARIEL, WA JAN-JUL 2450.0 104 2840.0 121 2060.0 88 2351. 2397 1294 85 MCKENZIE RIVER VIDA NR, OR APR-SEP 1090.0 91 1380.0 115 795.0 66 1201. 1674 1126 97 S. SANTIAM RIVER WATERLOO, OR APR-SEP 520.0 89 790.0 135 250.0 43 587. 895 943 89 N. SANTIAM RIVER MEHAMA, OR APR-SEP 750.0 90 1030.0 124 465.0 56 834. 1413 1067 98 WILLAMETTE RIVER SALEM, OR APR-SEP 4300.0 90 5980.0 124 2620.0 55 4804. 6084 6080 78 CLACKAMAS RIVER ESTACADA, OR APR-SEP 660.0 88 865.0 116 450.0 60 748. 1174 726 86 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 142.0 94 187.0 124 97.0 64 151. 164 88 97 JAN-JUL 172.0 95 215.0 119 127.0 70 181. 180 88 97 ROGUE RIVER RAYGOLD, OR APR-SEP 790.0 89 1090.0 123 490.0 55 889. 1076 603 74 JAN-JUL 1380.0 87 1680.0 106 1080.0 68 1584. 1697 603 74 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 73.0 82 113.0 127 33.0 37 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 105.0 81 185.0 143 25.0 19 129. 79 10 66 APR-SEP 81.0 82 161.0 163 1.0 99. 82 10 66 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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