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Water Supply Forecasts Northwest River Forecast Center Wednesday July 08, 2009 at 17:40 GMT Full month of observed precipitation Future precip assumed to be normal No snow included Full complement runoff applied through JUN UPPER COLUMBIA BASINS Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 7570.0 79 8840.0 92 6300.0 65 9619. 9199 6113 80 FEB-JUL 7330.0 78 8600.0 92 6060.0 65 9372. 8909 6113 80 APR-SEP 9770.0 78 11000.0 88 8500.0 68 12500. 11570 6113 80 REVELSTOKE, BC JAN-JUL 10800.0 78 11900.0 86 9870.0 71 13880. 13420 9277 82 ARROW LAKES INFLOW JAN-JUL 16000.0 76 17800.0 85 14100.0 67 20960. 19230 14240 79 FEB-JUL 15300.0 76 17100.0 85 13500.0 67 20230. 18670 14240 79 APR-SEP 19100.0 76 20900.0 83 17300.0 69 25110. 22910 14240 79 BIRCHBANK, BC (1) JAN-JUL 29300.0 75 33400.0 86 25200.0 65 38930. 36130 27590 79 APR-SEP 32700.0 75 36800.0 85 28600.0 66 43500. 40800 27590 79 GRAND COULEE, WA (1) JAN-JUL 49600.0 79 55400.0 88 43800.0 70 62900. 59650 48550 82 APR-SEP 51000.0 80 56800.0 89 45200.0 71 63990. 62860 48550 82 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 54800.0 80 61700.0 90 47900.0 70 68910. 64110 52980 81 APR-SEP 55900.0 80 62800.0 90 49000.0 70 69540. 67150 52980 81 THE DALLES NR, OR (1) JAN-JUL 89300.0 83 97600.0 91 81100.0 76 107300. 99210 93410 86 APR-AUG 79500.0 85 87800.0 94 71300.0 77 93090. 93200 93410 86 APR-SEP 84300.0 85 92500.0 94 76000.0 77 98650. 97910 93410 86 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 4360.0 69 5410.0 86 3310.0 52 6306. 5516 4201 71 APR-AUG 4330.0 69 5380.0 86 3280.0 52 6248. 5539 4201 71 APR-SEP 4600.0 69 5650.0 85 3550.0 53 6638. 5887 4201 71 LEONIA, ID (1) APR-JUL 5020.0 71 6320.0 90 3720.0 53 7041. 6568 5508 70 APR-SEP 5790.0 71 7090.0 87 4490.0 55 8125. 7516 5508 70 BONNERS FERRY, ID APR-JUL 5410.0 71 6700.0 88 4130.0 54 7619. 7099 5982 70 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 11600.0 72 13200.0 82 9970.0 62 16010. 14250 11080 73 APR-SEP 12100.0 74 13900.0 84 10200.0 62 16450. 15060 11080 73 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1470.0 82 1820.0 101 1120.0 62 1800. 1691 1292 87 FEB-JUL 1420.0 81 1770.0 101 1070.0 61 1746. 1638 1292 87 APR-SEP 1810.0 81 2160.0 97 1460.0 66 2227. 2111 1292 87 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 935.0 133 1150.0 163 710.0 101 704. 852 1081 127 MISSOULA ABV, MT APR-SEP 1980.0 124 2230.0 140 1730.0 108 1595. 1798 2190 122 MISSOULA BLO, MT APR-SEP 3510.0 119 3880.0 131 3130.0 106 2962. 3420 3819 117 ST. REGIS, MT (1) APR-SEP 4370.0 112 5010.0 128 3730.0 95 3907. 4509 4882 112 PLAINS NR, MT (1) APR-SEP 10200.0 92 11600.0 105 8840.0 80 11060. 12090 10800 92 WHITEHORSE RAPIDS, ID (1) APR-SEP 11500.0 92 13200.0 106 9800.0 79 12460. 13630 11940 89 BLACKFOOT RIVER BONNER NR, MT APR-SEP 1040.0 117 1130.0 127 955.0 107 892. 946 1110 119 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1520.0 111 1700.0 125 1350.0 99 1364. 1597 1679 115 Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1360.0 76 1550.0 86 1180.0 66 1801. 1865 1288 74 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1510.0 87 1710.0 98 1310.0 75 1740. 2103 1411 83 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2020.0 91 2440.0 110 1610.0 72 2224. 2506 2041 92 APR-SEP 1960.0 92 2370.0 112 1540.0 73 2124. 2530 2041 92 UPPER/MIDDLE COLUMBIA BASINS Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 4950.0 85 5680.0 98 4220.0 72 5825. 6676 4772 82 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 5760.0 86 6940.0 103 4590.0 68 6713. 7562 5992 87 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 655.0 80 835.0 103 475.0 58 814. 849 809 74 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13100.0 94 15000.0 108 11200.0 81 13910. 15810 14420 93 APR-JUL 12000.0 94 13900.0 109 10100.0 79 12740. 14580 14420 93 BOX CANYON BLO, WA (1) APR-SEP 13300.0 94 15300.0 109 11400.0 81 14090. 16110 14550 92 KETTLE RIVER LAURIER NR, WA APR-SEP 1400.0 71 1660.0 84 1140.0 58 1972. 1517 1373 71 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 805.0 103 900.0 116 710.0 91 778. 1302 1081 85 APR-JUL 765.0 104 860.0 116 670.0 91 739. 1258 1081 85 COEUR D'ALENE LAKE IN, ID APR-JUL 2750.0 108 3030.0 119 2470.0 97 2552. 3826 4256 98 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2960.0 108 3020.0 110 2890.0 105 2744. 4128 4300 97 ST JOE RIVER CALDER, ID APR-SEP 1290.0 107 1400.0 116 1180.0 98 1205. 1656 1605 103 APR-JUL 1220.0 107 1330.0 117 1110.0 98 1136. 1571 1605 103 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 985.0 56 1420.0 80 545.0 31 1766. 1542 1122 62 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 850.0 63 1150.0 85 550.0 41 1350. 1189 971 69 APR-SEP 915.0 63 1220.0 84 615.0 42 1450. 1259 971 69 METHOW RIVER PATEROS NR, WA (1) APR-SEP 675.0 69 870.0 88 480.0 49 985. 926 721 76 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1000.0 84 1210.0 102 795.0 67 1185. 1157 1053 91 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1390.0 85 1900.0 116 885.0 54 1635. 1521 1726 94 YAKIMA AND MAINSTEM SNAKE BASINS Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 131.0 98 154.0 116 108.0 81 133. 174 223 98 CLE ELUM, WA APR-SEP 945.0 105 1080.0 120 820.0 91 903. 1013 1465 109 PARKER NR, WA APR-SEP 2100.0 109 2400.0 125 1790.0 93 1918. 2325 3216 107 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 116.0 97 134.0 112 98.0 82 120. 150 198 99 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 400.0 89 465.0 104 335.0 75 448. 479 576 99 NACHES RIVER NACHES NR, WA APR-SEP 980.0 117 1110.0 133 855.0 102 837. 991 1304 116 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 134.0 100 162.0 121 106.0 79 134. 155 175 98 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 255.0 105 285.0 118 225.0 93 242. 247 314 102 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 880.0 108 1040.0 128 725.0 89 815. 894 917 104 APR-SEP 975.0 108 1130.0 125 820.0 91 904. 970 917 104 PALISADES RES INFLOW, ID (1) APR-JUL 3670.0 110 4110.0 123 3230.0 97 3331. 3352 3954 105 APR-SEP 4270.0 110 4700.0 121 3830.0 99 3875. 3850 3954 105 HEISE NR, ID APR-JUL 3940.0 111 4430.0 124 3450.0 97 3561. 3644 4415 107 APR-SEP 4600.0 111 5090.0 122 4110.0 99 4159. 4282 4415 107 SHELLEY NR, ID (1) APR-JUL 4830.0 109 5350.0 121 4300.0 97 4428. 4541 5816 107 APR-SEP 5810.0 109 6330.0 119 5280.0 99 5324. 5320 5816 107 BLACKFOOT NR, ID (1) APR-JUL 4860.0 106 5430.0 118 4300.0 93 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 3320.0 102 4040.0 125 2600.0 80 3242. 2731 5196 94 MILNER, ID APR-JUL 1530.0 125 2110.0 172 955.0 78 1228. 160 1459 53 KING HILL, ID (1) APR-JUL 3200.0 105 3960.0 130 2450.0 80 3045. 1765 4924 71 MURPHY NR, ID (1) APR-JUL 3330.0 108 4160.0 135 2500.0 81 3092. 1549 5173 72 WEISER, ID (1) JAN-JUL 7130.0 73 8460.0 86 5800.0 59 9793. 5966 7980 67 APR-JUL 5210.0 90 6540.0 113 3880.0 67 5765. 3926 7980 67 APR-SEP 6660.0 93 7980.0 111 5330.0 74 7192. 5218 7980 67 BROWNLEE RES INFLOW APR-JUL 5710.0 90 7430.0 118 3990.0 63 6313. 4367 8914 69 APR-SEP 6740.0 86 8460.0 108 5020.0 64 7801. 5699 8914 69 HELLS CANYON, ID (1) APR-JUL 5910.0 91 7370.0 114 4440.0 68 6493. 4738 9178 70 APR-SEP 7390.0 93 8850.0 111 5920.0 74 7977. 6060 9178 70 LOWER GRANITE RES IN, WA (1) JAN-JUL 29600.0 99 32800.0 109 26300.0 88 30020. 27520 30710 94 FEB-SEP 30200.0 99 33400.0 110 26900.0 89 30370. 28890 30710 94 APR-JUL 23500.0 109 26800.0 124 20200.0 94 21550. 22830 30710 94 APR-SEP 26100.0 108 29400.0 122 22800.0 94 24140. 25390 30710 94 UPPER SNAKE BASINS Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 450.0 114 500.0 127 400.0 102 394. 389 412 112 SALT RIVER ETNA NR, WY APR-JUL 425.0 124 485.0 142 365.0 107 342. 311 546 115 HENRYS FORK ASHTON NR, ID APR-JUL 480.0 84 550.0 96 405.0 71 571. 518 862 88 ST. ANTHONY, ID APR-JUL 695.0 95 805.0 110 585.0 80 734. 703 1161 94 REXBURG NR, ID APR-JUL 995.0 64 1170.0 75 820.0 53 1559. 905 1470 66 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 295.0 76 350.0 91 240.0 62 386. 308 341 69 TETON RIVER ST. ANTHONY NR, ID APR-JUL 465.0 115 540.0 134 390.0 97 403. 445 529 109 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 139.0 98 180.0 127 99.0 70 142. 80 160 89 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 65.0 76 89.0 103 41.0 48 86. 41 73 69 PORTNEUF RIVER TOPAZ, ID APR-SEP 74.0 78 86.0 91 62.0 65 95. 61 92 74 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 22.0 76 27.0 93 16.1 56 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 240.0 94 310.0 121 165.0 64 256. 185 256 92 MAGIC RESERVOIR INFLOW, ID APR-JUL 245.0 84 295.0 101 193.0 66 291. 172 253 74 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 72.0 83 89.0 102 55.0 63 87. 50 84 79 MIDDLE SNAKE BASINS Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 187.0 90 230.0 111 143.0 69 208. 155 213 81 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 380.0 62 445.0 73 315.0 51 613. 452 477 59 OWYHEE RES OUTFLOW APR-JUL 42.0 19 49.0 23 38.0 18 217. 53 52 14 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 675.0 106 775.0 122 575.0 90 636. 655 780 101 BOISE NR, ID (1) APR-JUL 1250.0 88 1470.0 104 1030.0 73 1414. 1290 1491 82 PARMA NR, ID APR-JUL 385.0 65 580.0 98 186.0 31 593. 319 638 57 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 455.0 84 555.0 102 350.0 65 542. 442 530 83 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 56.0 51 61.0 55 51.0 46 110. 85 79 53 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 51.0 63 54.0 67 47.0 58 81. 80 69 66 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1480.0 92 1800.0 111 1160.0 72 1617. 1701 1832 87 EMMETT NR, ID APR-JUL 1110.0 89 1450.0 116 760.0 61 1246. 1394 1453 79 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 119.0 89 143.0 107 95.0 71 134. 141 137 90 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 475.0 96 560.0 113 385.0 78 495. 525 601 90 WEISER RIVER WEISER NR, ID (1) APR-JUL 290.0 74 395.0 101 180.0 46 391. 479 466 62 BURNT RIVER HEREFORD NR, OR MAR-JUL 40.0 78 43.0 84 36.0 71 51. 57 53 79 LOWER SNAKE AND CENTRAL OREGON BASINS Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 62.0 89 72.0 103 53.0 76 70. 80 IMNAHA RIVER IMNAHA, OR MAR-JUL 315.0 105 355.0 118 270.0 90 301. 337 336 103 SALMON RIVER SALMON, ID (1) APR-JUL 1040.0 121 1320.0 154 760.0 89 857. 806 1247 111 WHITEBIRD, ID (1) JAN-JUL 7520.0 111 8460.0 124 6590.0 97 6805. 7310 7419 109 APR-JUL 6690.0 114 7620.0 130 5760.0 98 5851. 6560 7419 109 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 295.0 118 315.0 127 280.0 112 249. 347 350 111 APR-JUL 245.0 133 265.0 144 225.0 122 184. 301 350 111 TROY, OR (1) MAR-JUL 2070.0 131 2460.0 156 1680.0 106 1578. 1971 2395 118 APR-JUL 1790.0 141 2180.0 171 1400.0 110 1274. 1761 2395 118 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 5140.0 111 6150.0 132 4130.0 89 4645. 5729 6507 112 SPALDING, ID (1) JAN-JUL 10100.0 104 11500.0 119 8650.0 89 9683. 10500 10600 105 APR-JUL 8100.0 109 9510.0 128 6680.0 90 7435. 9382 10600 105 APR-SEP 8530.0 109 9950.0 127 7120.0 91 7849. 9851 10600 105 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3350.0 94 3770.0 106 2930.0 83 3547. 3823 3619 96 APR-JUL 2570.0 97 2980.0 113 2150.0 81 2644. 3434 3619 96 APR-SEP 2720.0 97 3140.0 112 2310.0 82 2803. 3659 3619 96 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 80.0 151 88.0 166 72.0 136 53. 92 151 141 UMATILLA RIVER GIBBON NR, OR APR-JUL 122.0 167 132.0 181 112.0 153 73. 127 207 128 PENDLETON, OR APR-JUL 300.0 201 315.0 211 285.0 191 149. 285 506 137 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 160.0 100 178.0 111 142.0 89 160. 0 APR-JUL 123.0 100 141.0 115 105.0 85 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 715.0 120 795.0 133 630.0 106 597. 883 965 95 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1150.0 100 1420.0 123 885.0 77 1153. 1362 1312 87 APR-SEP 950.0 110 1220.0 141 685.0 79 865. 1152 1312 87 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 485.0 92 510.0 97 460.0 87 528. 504 772 103 Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 112.0 61 124.0 67 99.0 54 184. 143 135 50 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 16.6 46 20.0 56 12.9 36 36. 33 WESTSIDE AND SOUTHERN OREGON BASINS Jul-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 5850.0 92 6980.0 110 4710.0 74 6365. 6790 7643 88 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3420.0 106 4200.0 131 2640.0 82 3217. 3468 4138 100 APR-JUL 1890.0 112 2670.0 158 1110.0 66 1689. 2328 4138 100 APR-SEP 2150.0 112 2930.0 152 1370.0 71 1922. 2615 4138 100 CASTLE ROCK, WA APR-SEP 2820.0 107 3900.0 148 1740.0 66 2639. 3330 5831 94 JAN-JUL 4850.0 103 5930.0 126 3770.0 80 4709. 4998 5831 94 LEWIS RIVER ARIEL, WA JAN-JUL 2180.0 93 2300.0 98 2070.0 88 2351. 2397 2747 84 MCKENZIE RIVER VIDA NR, OR APR-SEP 1340.0 112 1420.0 118 1260.0 105 1201. 1674 2645 99 S. SANTIAM RIVER WATERLOO, OR APR-SEP 640.0 109 750.0 128 530.0 90 587. 895 1938 90 N. SANTIAM RIVER MEHAMA, OR APR-SEP 980.0 118 1110.0 133 850.0 102 834. 1413 2369 101 WILLAMETTE RIVER SALEM, OR APR-SEP 4870.0 101 5460.0 114 4280.0 89 4804. 6084 13300 81 CLACKAMAS RIVER ESTACADA, OR APR-SEP 915.0 122 1000.0 134 830.0 111 748. 1174 1822 96 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 142.0 94 163.0 108 120.0 79 151. 164 213 95 JAN-JUL 168.0 93 189.0 104 146.0 81 181. 180 213 95 ROGUE RIVER RAYGOLD, OR APR-SEP 820.0 92 880.0 99 760.0 85 889. 1076 1637 82 JAN-JUL 1360.0 86 1420.0 90 1300.0 82 1584. 1697 1637 82 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 69.0 78 92.0 103 47.0 53 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 72.0 56 117.0 91 26.0 20 129. 79 82 54 APR-SEP 56.0 57 102.0 103 10.5 11 99. 82 82 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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