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Water Supply Forecasts Northwest River Forecast Center Friday January 23, 2009 at 20:22 GMT Observed precipitation through the 19th Future precip: 67% of normal to end of month then normal rest of way No snow included Observed runoff thru December note: current month runoff based on OBSERVED + ESP to the end of JAN UPPER COLUMBIA BASINS Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 9250.0 96 11000.0 114 7530.0 78 9619. 9199 1528 97 FEB-SEP 12400.0 96 14200.0 110 10700.0 83 12960. 12030 1528 97 APR-SEP 12000.0 96 13700.0 110 10300.0 82 12500. 11570 1528 97 REVELSTOKE, BC JAN-JUL 13400.0 97 14900.0 107 12000.0 86 13880. 13420 2359 103 ARROW LAKES INFLOW JAN-JUL 20200.0 96 22900.0 109 17500.0 83 20960. 19230 3662 93 FEB-SEP 25500.0 96 28200.0 107 22800.0 86 26460. 23880 3662 93 APR-SEP 24200.0 96 26900.0 107 21500.0 86 25110. 22910 3662 93 BIRCHBANK, BC (1) JAN-JUL 36400.0 94 43700.0 112 29200.0 75 38930. 36130 6403 98 APR-SEP 40700.0 94 47900.0 110 33400.0 77 43500. 40800 6403 98 GRAND COULEE, WA (1) JAN-JUL 58900.0 94 71400.0 114 46400.0 74 62900. 59650 10140 93 APR-SEP 59700.0 93 72200.0 113 47300.0 74 63990. 62860 10140 93 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 65000.0 94 79300.0 115 50700.0 74 68910. 64110 11280 96 APR-SEP 65200.0 94 79500.0 114 50900.0 73 69540. 67150 11280 96 THE DALLES NR, OR (1) JAN-JUL 95500.0 89 118000.0 110 72900.0 68 107300. 99210 21380 93 APR-AUG 81900.0 88 104000.0 112 59300.0 64 93090. 93200 21380 93 APR-SEP 86800.0 88 109000.0 110 64200.0 65 98650. 97910 21380 93 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5430.0 86 6960.0 110 3900.0 62 6306. 5516 894 80 APR-AUG 5390.0 86 6920.0 111 3850.0 62 6248. 5539 894 80 APR-SEP 5730.0 86 7260.0 109 4190.0 63 6638. 5887 894 80 LEONIA, ID (1) APR-JUL 6010.0 85 7900.0 112 4110.0 58 7041. 6568 1048 73 APR-SEP 6930.0 85 8820.0 109 5030.0 62 8125. 7516 1048 73 BONNERS FERRY, ID APR-JUL 6520.0 86 8200.0 108 4840.0 64 7619. 7099 1094 71 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 14100.0 88 17200.0 107 10900.0 68 16010. 14250 2206 84 APR-SEP 14400.0 88 17800.0 108 11100.0 67 16450. 15060 2206 84 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1750.0 97 2170.0 121 1330.0 74 1800. 1691 340 113 FEB-SEP 2220.0 96 2640.0 115 1800.0 78 2305. 2170 340 113 APR-SEP 2150.0 97 2570.0 115 1730.0 78 2227. 2111 340 113 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 805.0 114 1200.0 170 415.0 59 704. 852 276 124 MISSOULA ABV, MT APR-SEP 1830.0 115 2370.0 149 1290.0 81 1595. 1798 471 127 MISSOULA BLO, MT APR-SEP 3160.0 107 3980.0 134 2330.0 79 2962. 3420 766 123 ST. REGIS, MT (1) APR-SEP 4030.0 103 5680.0 145 2380.0 61 3907. 4509 1087 132 PLAINS NR, MT (1) APR-SEP 11100.0 100 14400.0 130 7770.0 70 11060. 12090 1947 98 WHITEHORSE RAPIDS, ID (1) APR-SEP 12100.0 97 15900.0 128 8300.0 67 12460. 13630 2080 90 BLACKFOOT RIVER BONNER NR, MT APR-SEP 1040.0 117 1400.0 157 675.0 76 892. 946 193 129 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1330.0 98 1690.0 124 975.0 71 1364. 1597 322 129 Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1550.0 86 1930.0 107 1170.0 65 1801. 1865 166 65 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1610.0 93 1960.0 113 1260.0 72 1740. 2103 172 71 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2380.0 107 2980.0 134 1780.0 80 2224. 2506 308 103 APR-SEP 2270.0 107 2870.0 135 1670.0 79 2124. 2530 308 103 UPPER/MIDDLE COLUMBIA BASINS Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5580.0 96 6990.0 120 4160.0 71 5825. 6676 657 79 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6680.0 100 8510.0 127 4850.0 72 6713. 7562 1010 102 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 670.0 82 965.0 119 380.0 47 814. 849 151 77 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13200.0 95 17400.0 125 9000.0 65 13910. 15810 2619 95 APR-JUL 12100.0 95 16300.0 128 7900.0 62 12740. 14580 2619 95 BOX CANYON BLO, WA (1) APR-SEP 13400.0 95 17200.0 122 9540.0 68 14090. 16110 2730 96 KETTLE RIVER LAURIER NR, WA APR-SEP 1710.0 87 2180.0 111 1230.0 62 1972. 1517 112 72 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 705.0 91 955.0 123 455.0 58 778. 1302 191 72 APR-JUL 670.0 91 920.0 124 415.0 56 739. 1258 191 72 COEUR D'ALENE LAKE IN, ID APR-JUL 2410.0 94 3180.0 125 1630.0 64 2552. 3826 797 91 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2540.0 93 2700.0 98 2380.0 87 2744. 4128 871 94 ST JOE RIVER CALDER, ID APR-SEP 1140.0 95 1440.0 120 845.0 70 1205. 1656 283 111 APR-JUL 1090.0 96 1390.0 122 795.0 70 1136. 1571 283 111 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1370.0 78 2170.0 123 565.0 32 1766. 1542 287 94 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1100.0 81 1680.0 124 510.0 38 1350. 1189 192 106 APR-SEP 1180.0 81 1760.0 121 590.0 41 1450. 1259 192 106 METHOW RIVER PATEROS NR, WA (1) APR-SEP 800.0 81 1210.0 123 385.0 39 985. 926 140 120 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1030.0 87 1260.0 106 805.0 68 1185. 1157 284 137 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1460.0 89 2040.0 125 890.0 54 1635. 1521 552 138 YAKIMA AND MAINSTEM SNAKE BASINS Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 132.0 99 166.0 125 97.0 73 133. 174 96 116 CLE ELUM, WA APR-SEP 865.0 96 1040.0 115 690.0 76 903. 1013 586 145 PARKER NR, WA APR-SEP 1960.0 102 2380.0 124 1550.0 81 1918. 2325 1148 132 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 119.0 99 147.0 123 90.0 75 120. 150 82 123 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 460.0 103 550.0 123 370.0 83 448. 479 216 139 NACHES RIVER NACHES NR, WA APR-SEP 820.0 98 985.0 118 650.0 78 837. 991 381 140 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 139.0 104 173.0 129 105.0 78 134. 155 55 110 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 240.0 99 295.0 122 186.0 77 242. 247 98 110 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 50.0 109 69.0 150 31.0 67 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 745.0 91 935.0 115 550.0 67 815. 894 113 79 APR-SEP 825.0 91 1020.0 113 635.0 70 904. 970 113 79 PALISADES RES INFLOW, ID (1) APR-JUL 2930.0 88 3800.0 114 2050.0 62 3331. 3352 701 91 APR-SEP 3410.0 88 4280.0 110 2540.0 66 3875. 3850 701 91 HEISE NR, ID APR-JUL 3130.0 88 4100.0 115 2150.0 60 3561. 3644 853 97 APR-SEP 3660.0 88 4630.0 111 2690.0 65 4159. 4282 853 97 SHELLEY NR, ID (1) APR-JUL 4030.0 91 5020.0 113 3040.0 69 4428. 4541 1217 91 APR-SEP 4850.0 91 5840.0 110 3860.0 73 5324. 5320 1217 91 BLACKFOOT NR, ID (1) APR-JUL 4060.0 88 5070.0 110 3050.0 66 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2490.0 77 3880.0 120 1100.0 34 3242. 2731 1424 82 MILNER, ID APR-JUL 250.0 20 1160.0 94 150.0 12 1228. 160 149 15 KING HILL, ID (1) APR-JUL 1700.0 56 2880.0 95 515.0 17 3045. 1765 1701 59 MURPHY NR, ID (1) APR-JUL 1840.0 60 3080.0 100 595.0 19 3092. 1549 1856 63 WEISER, ID (1) JAN-JUL 5400.0 55 8240.0 84 2550.0 26 9793. 5966 2540 62 APR-JUL 3170.0 55 6010.0 104 320.0 6 5765. 3926 2540 62 APR-SEP 4560.0 63 7410.0 103 1720.0 24 7192. 5218 2540 62 BROWNLEE RES INFLOW APR-JUL 3580.0 57 6340.0 100 815.0 13 6313. 4367 2819 65 APR-SEP 4970.0 64 7730.0 99 2210.0 28 7801. 5699 2819 65 HELLS CANYON, ID (1) APR-JUL 3650.0 56 6700.0 103 600.0 9 6493. 4738 2900 67 APR-SEP 5060.0 63 8110.0 102 2010.0 25 7977. 6060 2900 67 LOWER GRANITE RES IN, WA (1) JAN-JUL 25100.0 84 34400.0 115 15800.0 53 30020. 27520 6274 83 FEB-SEP 25300.0 83 34600.0 114 16000.0 53 30370. 28890 6274 83 APR-JUL 17900.0 83 27200.0 126 8590.0 40 21550. 22830 6274 83 APR-SEP 20100.0 83 29400.0 122 10800.0 45 24140. 25390 6274 83 UPPER SNAKE BASINS Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 335.0 85 445.0 113 220.0 56 394. 389 57 87 SALT RIVER ETNA NR, WY APR-JUL 285.0 83 430.0 126 137.0 40 342. 311 126 95 HENRYS FORK ASHTON NR, ID APR-JUL 490.0 86 630.0 110 355.0 62 571. 518 299 86 ST. ANTHONY, ID APR-JUL 590.0 80 850.0 116 340.0 46 734. 703 325 81 REXBURG NR, ID APR-JUL 1290.0 83 1700.0 109 890.0 57 1559. 905 432 64 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 330.0 85 410.0 106 250.0 65 386. 308 66 54 TETON RIVER ST. ANTHONY NR, ID APR-JUL 315.0 78 465.0 115 165.0 41 403. 445 113 96 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 101.0 71 181.0 127 21.0 15 142. 80 35 67 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 73.0 85 116.0 135 29.0 34 86. 41 7 52 PORTNEUF RIVER TOPAZ, ID APR-SEP 77.0 81 104.0 109 49.0 52 95. 61 26 68 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 23.0 79 42.0 145 2.9 10 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 177.0 69 305.0 119 47.0 18 256. 185 40 86 MAGIC RESERVOIR INFLOW, ID APR-JUL 178.0 61 385.0 132 0.0 0 291. 172 19 59 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 60.0 69 107.0 123 12.2 14 87. 50 12 75 MIDDLE SNAKE BASINS Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 175.0 84 290.0 139 59.0 28 208. 155 19 59 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 400.0 65 855.0 139 0.0 0 613. 452 74 58 OWYHEE RES OUTFLOW APR-JUL 14.8 7 220.0 101 0.0 0 217. 53 12 44 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 525.0 83 690.0 108 365.0 57 636. 655 97 85 BOISE NR, ID (1) APR-JUL 1120.0 79 1610.0 114 625.0 44 1414. 1290 207 78 PARMA NR, ID APR-JUL 131.0 22 515.0 87 65.0 11 593. 319 212 73 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 400.0 74 520.0 96 285.0 53 542. 442 70 86 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 75.0 68 141.0 128 9.2 8 110. 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 16 84 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1210.0 75 1770.0 109 645.0 40 1617. 1701 288 79 EMMETT NR, ID APR-JUL 845.0 68 1450.0 116 350.0 28 1246. 1394 258 67 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 100.0 75 139.0 104 61.0 46 134. 141 20 93 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 390.0 79 555.0 112 225.0 45 495. 525 97 76 WEISER RIVER WEISER NR, ID (1) APR-JUL 275.0 70 510.0 130 39.0 10 391. 479 65 50 BURNT RIVER HEREFORD NR, OR MAR-JUL 39.0 76 63.0 124 15.3 30 51. 57 11 92 LOWER SNAKE AND CENTRAL OREGON BASINS Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 52.0 74 74.0 106 31.0 44 70. 80 IMNAHA RIVER IMNAHA, OR MAR-JUL 265.0 88 355.0 118 174.0 58 301. 337 45 91 SALMON RIVER SALMON, ID (1) APR-JUL 720.0 84 1090.0 127 345.0 40 857. 806 283 91 WHITEBIRD, ID (1) JAN-JUL 6000.0 88 8060.0 118 3950.0 58 6805. 7310 1076 90 APR-JUL 5160.0 88 7220.0 123 3110.0 53 5851. 6560 1076 90 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 196.0 79 275.0 110 116.0 47 249. 347 47 108 APR-JUL 145.0 79 225.0 122 65.0 35 184. 301 47 108 TROY, OR (1) MAR-JUL 1420.0 90 1980.0 125 845.0 54 1578. 1971 373 95 APR-JUL 1130.0 89 1700.0 133 560.0 44 1274. 1761 373 95 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4580.0 99 6340.0 136 2820.0 61 4645. 5729 1055 128 SPALDING, ID (1) JAN-JUL 9880.0 102 12900.0 133 6900.0 71 9683. 10500 1838 116 APR-JUL 7380.0 99 10400.0 140 4410.0 59 7435. 9382 1838 116 APR-SEP 7810.0 100 10800.0 138 4830.0 62 7849. 9851 1838 116 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3650.0 103 4780.0 135 2510.0 71 3547. 3823 722 110 APR-JUL 2660.0 101 3800.0 144 1530.0 58 2644. 3434 722 110 APR-SEP 2810.0 100 3940.0 141 1670.0 60 2803. 3659 722 110 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 57.0 108 75.0 142 39.0 74 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 156.0 105 225.0 151 85.0 57 149. 285 99 99 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 143.0 89 200.0 125 85.0 53 160. 0 APR-JUL 110.0 89 167.0 136 52.0 42 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 535.0 90 805.0 135 265.0 44 597. 883 92 59 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1030.0 89 1520.0 132 545.0 47 1153. 1362 154 58 APR-SEP 775.0 90 1260.0 146 290.0 34 865. 1152 154 58 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 500.0 95 565.0 107 430.0 81 528. 504 409 122 Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 168.0 91 260.0 141 75.0 41 184. 143 18 36 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 34.0 94 50.0 139 18.3 51 36. 33 WESTSIDE AND SOUTHERN OREGON BASINS Jan-09 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 5880.0 92 7510.0 118 4260.0 67 6365. 6790 2900 89 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3440.0 107 4540.0 141 2340.0 73 3217. 3468 1833 104 APR-JUL 1540.0 91 2640.0 156 440.0 26 1689. 2328 1833 104 APR-SEP 1750.0 91 2850.0 148 655.0 34 1922. 2615 1833 104 CASTLE ROCK, WA APR-SEP 2270.0 86 3820.0 145 725.0 27 2639. 3330 2744 100 JAN-JUL 5020.0 107 6570.0 140 3480.0 74 4709. 4998 2744 100 LEWIS RIVER ARIEL, WA JAN-JUL 2440.0 104 2830.0 120 2050.0 87 2351. 2397 1255 82 MCKENZIE RIVER VIDA NR, OR APR-SEP 1120.0 93 1410.0 117 825.0 69 1201. 1674 1115 96 S. SANTIAM RIVER WATERLOO, OR APR-SEP 560.0 95 830.0 141 290.0 49 587. 895 936 88 N. SANTIAM RIVER MEHAMA, OR APR-SEP 845.0 101 1130.0 135 560.0 67 834. 1413 1050 97 WILLAMETTE RIVER SALEM, OR APR-SEP 4630.0 96 6310.0 131 2950.0 61 4804. 6084 6031 77 CLACKAMAS RIVER ESTACADA, OR APR-SEP 715.0 96 920.0 123 505.0 68 748. 1174 720 86 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 146.0 97 191.0 126 101.0 67 151. 164 72 79 JAN-JUL 162.0 90 205.0 113 117.0 65 181. 180 72 79 ROGUE RIVER RAYGOLD, OR APR-SEP 815.0 92 1110.0 125 515.0 58 889. 1076 595 73 JAN-JUL 1420.0 90 1720.0 109 1120.0 71 1584. 1697 595 73 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 70.0 79 110.0 124 30.0 34 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 99.0 77 179.0 139 19.3 15 129. 79 11 73 APR-SEP 76.0 77 156.0 158 0.0 0 99. 82 11 73 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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