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Water Supply Forecasts Northwest River Forecast Center Thursday January 29, 2009 at 16:22 GMT Observed precipitation through the 26th Future precip_ 75% end of month then normal rest of way Snow included Observed runoff through December note: current month runoff based on OBSERVED + ESP to the end of JAN UPPER COLUMBIA BASINS Feb-09 EarlyBird ________________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 1532 97 FEB-SEP 12300.0 95 14100.0 109 10600.0 82 12960. 12030 1532 97 APR-SEP 11900.0 95 13600.0 109 10200.0 82 12500. 11570 1532 97 REVELSTOKE, BC JAN-JUL 13400.0 97 14800.0 107 11900.0 86 13880. 13420 2355 103 ARROW LAKES INFLOW JAN-JUL 20100.0 96 22800.0 109 17400.0 83 20960. 19230 3611 92 FEB-SEP 25500.0 96 28200.0 107 22800.0 86 26460. 23880 3611 92 APR-SEP 24200.0 96 26900.0 107 21500.0 86 25110. 22910 3611 92 BIRCHBANK, BC (1) JAN-JUL 36300.0 93 43500.0 112 29000.0 74 38930. 36130 6311 96 APR-SEP 40600.0 93 47800.0 110 33300.0 77 43500. 40800 6311 96 GRAND COULEE, WA (1) JAN-JUL 58000.0 92 70400.0 112 45500.0 72 62900. 59650 9992 92 APR-SEP 58900.0 92 71400.0 112 46400.0 73 63990. 62860 9992 92 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 63800.0 93 78100.0 113 49500.0 72 68910. 64110 11060 94 APR-SEP 64100.0 92 78400.0 113 49800.0 72 69540. 67150 11060 94 THE DALLES NR, OR (1) JAN-JUL 93800.0 87 116000.0 108 71200.0 66 107300. 99210 21100 91 APR-AUG 80500.0 86 103000.0 111 57900.0 62 93090. 93200 21100 91 APR-SEP 85300.0 86 108000.0 109 62700.0 64 98650. 97910 21100 91 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5560.0 88 7100.0 113 4030.0 64 6306. 5516 886 79 APR-AUG 5530.0 89 7060.0 113 4000.0 64 6248. 5539 886 79 APR-SEP 5870.0 88 7400.0 111 4340.0 65 6638. 5887 886 79 LEONIA, ID (1) APR-JUL 6130.0 87 8030.0 114 4230.0 60 7041. 6568 1038 72 APR-SEP 7070.0 87 8960.0 110 5170.0 64 8125. 7516 1038 72 BONNERS FERRY, ID APR-JUL 6650.0 87 8380.0 110 4960.0 65 7619. 7099 1081 71 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 14100.0 88 17200.0 107 11000.0 69 16010. 14250 2161 83 APR-SEP 14500.0 88 17800.0 108 11200.0 68 16450. 15060 2161 83 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1720.0 96 2140.0 119 1300.0 72 1800. 1691 325 108 FEB-SEP 2200.0 95 2620.0 114 1780.0 77 2305. 2170 325 108 APR-SEP 2120.0 95 2540.0 114 1700.0 76 2227. 2111 325 108 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 725.0 103 1120.0 159 335.0 48 704. 852 276 124 MISSOULA ABV, MT APR-SEP 1640.0 103 2180.0 137 1100.0 69 1595. 1798 469 126 MISSOULA BLO, MT APR-SEP 2980.0 101 3800.0 128 2160.0 73 2962. 3420 766 123 ST. REGIS, MT (1) APR-SEP 3910.0 100 5560.0 142 2260.0 58 3907. 4509 1016 123 PLAINS NR, MT (1) APR-SEP 10500.0 95 13800.0 125 7230.0 65 11060. 12090 1942 98 WHITEHORSE RAPIDS, ID (1) APR-SEP 11600.0 93 15300.0 123 7780.0 62 12460. 13630 2068 90 BLACKFOOT RIVER BONNER NR, MT APR-SEP 910.0 102 1280.0 143 545.0 61 892. 946 192 128 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1330.0 98 1680.0 123 975.0 71 1364. 1597 332 133 Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1530.0 85 1910.0 106 1150.0 64 1801. 1865 167 65 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1530.0 88 1890.0 109 1180.0 68 1740. 2103 171 71 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2220.0 100 2820.0 127 1620.0 73 2224. 2506 305 102 APR-SEP 2110.0 99 2710.0 128 1520.0 72 2124. 2530 305 102 UPPER/MIDDLE COLUMBIA BASINS Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5320.0 91 6730.0 116 3900.0 67 5825. 6676 647 78 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6320.0 94 8150.0 121 4490.0 67 6713. 7562 1000 101 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 660.0 81 955.0 117 370.0 45 814. 849 157 80 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 12700.0 91 16800.0 121 8470.0 61 13910. 15810 2611 95 APR-JUL 11600.0 91 15800.0 124 7420.0 58 12740. 14580 2611 95 BOX CANYON BLO, WA (1) APR-SEP 12900.0 92 16600.0 118 9020.0 64 14090. 16110 2726 96 KETTLE RIVER LAURIER NR, WA APR-SEP 1720.0 87 2190.0 111 1250.0 63 1972. 1517 108 70 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 650.0 84 900.0 116 395.0 51 778. 1302 192 72 APR-JUL 615.0 83 865.0 117 365.0 49 739. 1258 192 72 COEUR D'ALENE LAKE IN, ID APR-JUL 2150.0 84 2920.0 114 1380.0 54 2552. 3826 811 92 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2280.0 83 2430.0 89 2120.0 77 2744. 4128 862 93 ST JOE RIVER CALDER, ID APR-SEP 1020.0 85 1320.0 110 725.0 60 1205. 1656 287 113 APR-JUL 975.0 86 1270.0 112 675.0 59 1136. 1571 287 113 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1220.0 69 2020.0 114 410.0 23 1766. 1542 286 93 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 960.0 71 1540.0 114 375.0 28 1350. 1189 191 105 APR-SEP 1030.0 71 1610.0 111 440.0 30 1450. 1259 191 105 METHOW RIVER PATEROS NR, WA (1) APR-SEP 735.0 75 1150.0 117 325.0 33 985. 926 141 121 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1000.0 84 1230.0 104 770.0 65 1185. 1157 280 136 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1470.0 90 2040.0 125 890.0 54 1635. 1521 549 137 YAKIMA AND MAINSTEM SNAKE BASINS Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 112.0 84 146.0 110 77.0 58 133. 174 95 115 CLE ELUM, WA APR-SEP 730.0 81 905.0 100 555.0 61 903. 1013 572 141 PARKER NR, WA APR-SEP 1600.0 83 2020.0 105 1180.0 62 1918. 2325 1142 131 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 97.0 81 126.0 105 69.0 58 120. 150 82 123 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 390.0 87 480.0 107 300.0 67 448. 479 214 138 NACHES RIVER NACHES NR, WA APR-SEP 710.0 85 880.0 105 545.0 65 837. 991 379 139 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 122.0 91 156.0 116 88.0 66 134. 155 55 110 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 210.0 87 265.0 110 157.0 65 242. 247 98 110 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 46.0 100 65.0 141 27.0 59 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 765.0 94 955.0 117 570.0 70 815. 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 3110.0 93 3980.0 119 2230.0 67 3331. 3352 710 92 APR-SEP 3620.0 93 4490.0 116 2740.0 71 3875. 3850 710 92 HEISE NR, ID APR-JUL 3320.0 93 4290.0 120 2350.0 66 3561. 3644 863 98 APR-SEP 3880.0 93 4850.0 117 2910.0 70 4159. 4282 863 98 SHELLEY NR, ID (1) APR-JUL 4300.0 97 5290.0 119 3310.0 75 4428. 4541 1245 93 APR-SEP 5170.0 97 6160.0 116 4180.0 79 5324. 5320 1245 93 BLACKFOOT NR, ID (1) APR-JUL 4330.0 94 5340.0 116 3320.0 72 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2770.0 85 4160.0 128 1380.0 43 3242. 2731 1437 82 MILNER, ID APR-JUL 280.0 23 1380.0 112 150.0 12 1228. 160 150 15 KING HILL, ID (1) APR-JUL 1770.0 58 2950.0 97 585.0 19 3045. 1765 1693 59 MURPHY NR, ID (1) APR-JUL 1950.0 63 3190.0 103 700.0 23 3092. 1549 1856 63 WEISER, ID (1) JAN-JUL 5680.0 58 8530.0 87 2830.0 29 9793. 5966 2524 61 APR-JUL 3370.0 58 6210.0 108 520.0 9 5765. 3926 2524 61 APR-SEP 4770.0 66 7610.0 106 1920.0 27 7192. 5218 2524 61 BROWNLEE RES INFLOW APR-JUL 3760.0 60 6520.0 103 1000.0 16 6313. 4367 2813 65 APR-SEP 5160.0 66 7920.0 102 2400.0 31 7801. 5699 2813 65 HELLS CANYON, ID (1) APR-JUL 3830.0 59 6880.0 106 775.0 12 6493. 4738 2858 66 APR-SEP 5250.0 66 8300.0 104 2200.0 28 7977. 6060 2858 66 LOWER GRANITE RES IN, WA (1) JAN-JUL 24700.0 82 34000.0 113 15400.0 51 30020. 27520 6240 83 FEB-SEP 24800.0 82 34100.0 112 15500.0 51 30370. 28890 6240 83 APR-JUL 17600.0 82 26900.0 125 8260.0 38 21550. 22830 6240 83 APR-SEP 19700.0 82 29000.0 120 10400.0 43 24140. 25390 6240 83 UPPER SNAKE BASINS Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 370.0 94 485.0 123 260.0 66 394. 389 58 89 SALT RIVER ETNA NR, WY APR-JUL 320.0 94 465.0 136 172.0 50 342. 311 127 95 HENRYS FORK ASHTON NR, ID APR-JUL 500.0 88 640.0 112 365.0 64 571. 518 309 88 ST. ANTHONY, ID APR-JUL 635.0 87 885.0 121 375.0 51 734. 703 325 81 REXBURG NR, ID APR-JUL 1360.0 87 1760.0 113 950.0 61 1559. 905 436 65 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 345.0 89 425.0 110 260.0 67 386. 308 66 54 TETON RIVER ST. ANTHONY NR, ID APR-JUL 345.0 86 495.0 123 196.0 49 403. 445 115 97 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 116.0 82 196.0 138 36.0 25 142. 80 35 67 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 87.0 101 130.0 151 44.0 51 86. 41 7 52 PORTNEUF RIVER TOPAZ, ID APR-SEP 85.0 89 113.0 119 58.0 61 95. 61 26 68 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 24.0 83 44.0 152 4.8 17 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 205.0 80 335.0 131 74.0 29 256. 185 41 88 MAGIC RESERVOIR INFLOW, ID APR-JUL 225.0 77 430.0 148 13.8 5 291. 172 19 59 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 68.0 78 116.0 133 21.0 24 87. 50 12 75 MIDDLE SNAKE BASINS Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 205.0 99 320.0 154 90.0 43 208. 155 20 63 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 455.0 74 905.0 148 3.2 613. 452 77 60 OWYHEE RES OUTFLOW APR-JUL 17.5 8 270.0 124 0.0 0 217. 53 12 44 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 540.0 85 705.0 111 375.0 59 636. 655 100 88 BOISE NR, ID (1) APR-JUL 1180.0 83 1670.0 118 690.0 49 1414. 1290 211 79 PARMA NR, ID APR-JUL 139.0 23 570.0 96 73.0 12 593. 319 212 73 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 435.0 80 555.0 102 315.0 58 542. 442 71 87 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 78.0 71 144.0 131 12.1 11 110. 85 18 71 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 59.0 73 94.0 116 24.0 30 81. 80 17 89 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1250.0 77 1810.0 112 685.0 42 1617. 1701 291 80 EMMETT NR, ID APR-JUL 885.0 71 1490.0 120 370.0 30 1246. 1394 262 68 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 400.0 81 565.0 114 235.0 47 495. 525 96 75 WEISER RIVER WEISER NR, ID (1) APR-JUL 290.0 74 525.0 134 54.0 14 391. 479 67 51 BURNT RIVER HEREFORD NR, OR MAR-JUL 37.0 73 61.0 120 12.5 25 51. 57 11 92 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 50.0 71 72.0 103 29.0 41 70. 80 IMNAHA RIVER IMNAHA, OR MAR-JUL 255.0 85 345.0 115 165.0 55 301. 337 46 93 SALMON RIVER SALMON, ID (1) APR-JUL 715.0 83 1090.0 127 340.0 40 857. 806 281 91 WHITEBIRD, ID (1) JAN-JUL 6060.0 89 8120.0 119 4000.0 59 6805. 7310 1085 91 APR-JUL 5210.0 89 7270.0 124 3150.0 54 5851. 6560 1085 91 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 187.0 75 265.0 106 107.0 43 249. 347 47 108 APR-JUL 138.0 75 220.0 120 58.0 32 184. 301 47 108 TROY, OR (1) MAR-JUL 1320.0 84 1890.0 120 755.0 48 1578. 1971 370 94 APR-JUL 1060.0 83 1620.0 127 485.0 38 1274. 1761 370 94 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4340.0 93 6110.0 132 2580.0 56 4645. 5729 1053 127 SPALDING, ID (1) JAN-JUL 9160.0 95 12100.0 125 6180.0 64 9683. 10500 1840 117 APR-JUL 6790.0 91 9770.0 131 3810.0 51 7435. 9382 1840 117 APR-SEP 7180.0 91 10200.0 130 4210.0 54 7849. 9851 1840 117 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3290.0 93 4430.0 125 2150.0 61 3547. 3823 730 112 APR-JUL 2370.0 90 3510.0 133 1240.0 47 2644. 3434 730 112 APR-SEP 2490.0 89 3630.0 130 1350.0 48 2803. 3659 730 112 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 52.0 98 70.0 132 34.0 64 53. 92 36 98 UMATILLA RIVER GIBBON NR, OR APR-JUL 71.0 97 102.0 140 40.0 55 73. 127 48 108 PENDLETON, OR APR-JUL 141.0 95 210.0 141 70.0 47 149. 285 100 100 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 135.0 84 192.0 120 77.0 48 160. 0 APR-JUL 104.0 85 161.0 131 46.0 37 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 510.0 85 780.0 131 240.0 40 597. 883 93 60 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1040.0 90 1530.0 133 555.0 48 1153. 1362 155 59 APR-SEP 780.0 90 1270.0 147 295.0 34 865. 1152 155 59 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 500.0 95 565.0 107 430.0 81 528. 504 400 119 Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 160.0 87 255.0 139 67.0 36 184. 143 17 34 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 36.0 100 52.0 144 20.0 56 36. 33 WESTSIDE AND SOUTHERN OREGON BASINS Feb-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 5610.0 88 7230.0 114 3980.0 63 6365. 6790 2948 90 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3350.0 104 4440.0 138 2250.0 70 3217. 3468 1854 105 APR-JUL 1460.0 86 2560.0 152 360.0 21 1689. 2328 1854 105 APR-SEP 1660.0 86 2760.0 144 565.0 29 1922. 2615 1854 105 CASTLE ROCK, WA APR-SEP 2140.0 81 3680.0 139 590.0 22 2639. 3330 2771 101 JAN-JUL 4880.0 104 6430.0 137 3340.0 71 4709. 4998 2771 101 LEWIS RIVER ARIEL, WA JAN-JUL 2360.0 100 2760.0 117 1970.0 84 2351. 2397 1269 83 MCKENZIE RIVER VIDA NR, OR APR-SEP 1100.0 92 1390.0 116 810.0 67 1201. 1674 1130 98 S. SANTIAM RIVER WATERLOO, OR APR-SEP 555.0 95 825.0 141 285.0 49 587. 895 955 90 N. SANTIAM RIVER MEHAMA, OR APR-SEP 825.0 99 1110.0 133 545.0 65 834. 1413 1065 98 WILLAMETTE RIVER SALEM, OR APR-SEP 4590.0 96 6270.0 131 2900.0 60 4804. 6084 6147 78 CLACKAMAS RIVER ESTACADA, OR APR-SEP 685.0 92 890.0 119 475.0 64 748. 1174 722 86 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 144.0 95 189.0 125 99.0 66 151. 164 68 75 JAN-JUL 157.0 87 200.0 110 112.0 62 181. 180 68 75 ROGUE RIVER RAYGOLD, OR APR-SEP 790.0 89 1090.0 123 490.0 55 889. 1076 607 74 JAN-JUL 1390.0 88 1690.0 107 1090.0 69 1584. 1697 607 74 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 74.0 83 114.0 128 34.0 38 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 103.0 80 183.0 142 23.0 18 129. 79 10 66 APR-SEP 79.0 80 159.0 161 0.0 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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