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Water Supply Forecasts Northwest River Forecast Center Thursday July 02, 2009 at 17:01 GMT Observed precipitation through the 29th Future precip _ 30th zero, then normal rest of way No snow included Full complement runoff applied UPPER COLUMBIA BASINS Jul-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 7640.0 79 8910.0 93 6370.0 66 9619. 9199 6056 80 FEB-JUL 7410.0 79 8680.0 93 6140.0 66 9372. 8909 6056 80 APR-SEP 9870.0 79 11100.0 89 8600.0 69 12500. 11570 6056 80 REVELSTOKE, BC JAN-JUL 11100.0 80 12100.0 87 10100.0 73 13880. 13420 9228 82 ARROW LAKES INFLOW JAN-JUL 16300.0 78 18200.0 87 14500.0 69 20960. 19230 14240 79 FEB-JUL 15700.0 78 17500.0 87 13900.0 69 20230. 18670 14240 79 APR-SEP 19600.0 78 21400.0 85 17800.0 71 25110. 22910 14240 79 BIRCHBANK, BC (1) JAN-JUL 29700.0 76 33800.0 87 25600.0 66 38930. 36130 27590 79 APR-SEP 33200.0 76 37300.0 86 29100.0 67 43500. 40800 27590 79 GRAND COULEE, WA (1) JAN-JUL 49600.0 79 55400.0 88 43800.0 70 62900. 59650 48530 82 APR-SEP 51000.0 80 56800.0 89 45200.0 71 63990. 62860 48530 82 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 54800.0 80 61700.0 90 47900.0 70 68910. 64110 52890 81 APR-SEP 55900.0 80 62800.0 90 49000.0 70 69540. 67150 52890 81 THE DALLES NR, OR (1) JAN-JUL 89300.0 83 97600.0 91 81100.0 76 107300. 99210 93350 86 APR-AUG 79500.0 85 87800.0 94 71300.0 77 93090. 93200 93350 86 APR-SEP 84300.0 85 92500.0 94 76000.0 77 98650. 97910 93350 86 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 4390.0 70 5440.0 86 3340.0 53 6306. 5516 4201 71 APR-AUG 4360.0 70 5410.0 87 3310.0 53 6248. 5539 4201 71 APR-SEP 4630.0 70 5680.0 86 3580.0 54 6638. 5887 4201 71 LEONIA, ID (1) APR-JUL 5040.0 72 6340.0 90 3740.0 53 7041. 6568 5508 70 APR-SEP 5810.0 72 7110.0 88 4510.0 56 8125. 7516 5508 70 BONNERS FERRY, ID APR-JUL 5430.0 71 6720.0 88 4140.0 54 7619. 7099 5983 70 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 11600.0 72 13300.0 83 10100.0 63 16010. 14250 11100 74 APR-SEP 12100.0 74 14000.0 85 10300.0 63 16450. 15060 11100 74 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1470.0 82 1820.0 101 1120.0 62 1800. 1691 1276 86 FEB-JUL 1420.0 81 1770.0 101 1070.0 61 1746. 1638 1276 86 APR-SEP 1810.0 81 2160.0 97 1460.0 66 2227. 2111 1276 86 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 895.0 127 1110.0 158 670.0 95 704. 852 1080 126 MISSOULA ABV, MT APR-SEP 1890.0 118 2140.0 134 1640.0 103 1595. 1798 2189 122 MISSOULA BLO, MT APR-SEP 3290.0 111 3660.0 124 2910.0 98 2962. 3420 3815 117 ST. REGIS, MT (1) APR-SEP 4140.0 106 4780.0 122 3500.0 90 3907. 4509 4881 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 11950 89 BLACKFOOT RIVER BONNER NR, MT APR-SEP 995.0 112 1080.0 121 905.0 101 892. 946 1109 119 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1290.0 95 1470.0 108 1120.0 82 1364. 1597 1531 105 Jul-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1370.0 76 1560.0 87 1190.0 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 2038 92 APR-SEP 1960.0 92 2370.0 112 1540.0 73 2124. 2530 2038 92 UPPER/MIDDLE COLUMBIA BASINS Jul-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 4960.0 85 5690.0 98 4230.0 73 5825. 6676 4768 82 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 5770.0 86 6950.0 104 4600.0 69 6713. 7562 5994 88 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 600.0 74 780.0 96 420.0 52 814. 849 766 70 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 12600.0 91 14500.0 104 10700.0 77 13910. 15810 14390 92 APR-JUL 11500.0 90 13400.0 105 9600.0 75 12740. 14580 14390 92 BOX CANYON BLO, WA (1) APR-SEP 12800.0 91 14800.0 105 10700.0 76 14090. 16110 14510 91 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 2710.0 106 2990.0 117 2430.0 95 2552. 3826 4256 98 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2910.0 106 2970.0 108 2840.0 103 2744. 4128 4308 97 ST JOE RIVER CALDER, ID APR-SEP 1280.0 106 1390.0 115 1170.0 97 1205. 1656 1605 103 APR-JUL 1210.0 107 1330.0 117 1100.0 97 1136. 1571 1605 103 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 990.0 56 1430.0 81 550.0 31 1766. 1542 1122 62 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 855.0 63 1160.0 86 555.0 41 1350. 1189 971 69 APR-SEP 920.0 63 1220.0 84 620.0 43 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 990.0 84 1200.0 101 785.0 66 1185. 1157 1053 91 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1390.0 85 1900.0 116 885.0 54 1635. 1521 1725 94 YAKIMA AND MAINSTEM SNAKE BASINS Jul-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 135.0 102 158.0 119 112.0 84 133. 174 223 98 CLE ELUM, WA APR-SEP 975.0 108 1110.0 123 850.0 94 903. 1013 1467 109 PARKER NR, WA APR-SEP 2220.0 116 2520.0 131 1910.0 100 1918. 2325 3218 107 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 121.0 101 139.0 116 103.0 86 120. 150 198 99 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 415.0 93 480.0 107 350.0 78 448. 479 577 99 NACHES RIVER NACHES NR, WA APR-SEP 1030.0 123 1150.0 137 905.0 108 837. 991 1304 116 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 142.0 106 170.0 127 113.0 84 134. 155 176 98 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 265.0 110 295.0 122 235.0 97 242. 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 1030.0 126 720.0 88 815. 894 921 104 APR-SEP 975.0 108 1130.0 125 820.0 91 904. 970 921 104 PALISADES RES INFLOW, ID (1) APR-JUL 3640.0 109 4080.0 122 3200.0 96 3331. 3352 3957 105 APR-SEP 4240.0 109 4670.0 121 3800.0 98 3875. 3850 3957 105 HEISE NR, ID APR-JUL 3900.0 110 4390.0 123 3410.0 96 3561. 3644 4420 107 APR-SEP 4550.0 109 5040.0 121 4060.0 98 4159. 4282 4420 107 SHELLEY NR, ID (1) APR-JUL 4800.0 108 5330.0 120 4270.0 96 4428. 4541 5837 107 APR-SEP 5770.0 108 6300.0 118 5240.0 98 5324. 5320 5837 107 BLACKFOOT NR, ID (1) APR-JUL 4830.0 105 5400.0 117 4270.0 93 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 3290.0 101 4010.0 124 2570.0 79 3242. 2731 5208 94 MILNER, ID APR-JUL 1460.0 119 2040.0 166 885.0 72 1228. 160 1267 46 KING HILL, ID (1) APR-JUL 3250.0 107 4010.0 132 2500.0 82 3045. 1765 4925 71 MURPHY NR, ID (1) APR-JUL 3350.0 108 4180.0 135 2520.0 82 3092. 1549 5177 72 WEISER, ID (1) JAN-JUL 7150.0 73 8480.0 87 5820.0 59 9793. 5966 7981 67 APR-JUL 5230.0 91 6560.0 114 3900.0 68 5765. 3926 7981 67 APR-SEP 6680.0 93 8000.0 111 5350.0 74 7192. 5218 7981 67 BROWNLEE RES INFLOW APR-JUL 5720.0 91 7440.0 118 4000.0 63 6313. 4367 8916 69 APR-SEP 6750.0 87 8470.0 109 5030.0 64 7801. 5699 8916 69 HELLS CANYON, ID (1) APR-JUL 5820.0 90 7280.0 112 4360.0 67 6493. 4738 9187 70 APR-SEP 7300.0 92 8760.0 110 5830.0 73 7977. 6060 9187 70 LOWER GRANITE RES IN, WA (1) JAN-JUL 29400.0 98 32700.0 109 26100.0 87 30020. 27520 30710 94 FEB-SEP 30000.0 99 33200.0 109 26700.0 88 30370. 28890 30710 94 APR-JUL 23300.0 108 26600.0 123 20100.0 93 21550. 22830 30710 94 APR-SEP 25900.0 107 29200.0 121 22600.0 94 24140. 25390 30710 94 UPPER SNAKE BASINS Jul-09 EarlyBird ________________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 455.0 80 525.0 92 380.0 67 571. 518 858 88 ST. ANTHONY, ID APR-JUL 685.0 93 790.0 108 570.0 78 734. 703 1161 94 REXBURG NR, ID APR-JUL 1010.0 65 1180.0 76 830.0 53 1559. 905 1480 67 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 280.0 73 335.0 87 225.0 58 386. 308 338 69 TETON RIVER ST. ANTHONY NR, ID APR-JUL 450.0 112 525.0 130 375.0 93 403. 445 533 110 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 127.0 89 167.0 118 86.0 61 142. 80 155 86 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 64.0 74 88.0 102 40.0 47 86. 41 73 69 PORTNEUF RIVER TOPAZ, ID APR-SEP 72.0 76 84.0 88 60.0 63 95. 61 92 74 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 21.0 72 27.0 93 15.6 54 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 230.0 90 300.0 117 155.0 61 256. 185 255 91 MAGIC RESERVOIR INFLOW, ID APR-JUL 220.0 76 270.0 93 168.0 58 291. 172 226 66 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 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 182.0 88 225.0 108 138.0 66 208. 155 213 81 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 375.0 61 440.0 72 310.0 51 613. 452 473 59 OWYHEE RES OUTFLOW APR-JUL 39.0 18 47.0 22 35.0 16 217. 53 52 14 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 645.0 101 745.0 117 545.0 86 636. 655 775 101 BOISE NR, ID (1) APR-JUL 1250.0 88 1470.0 104 1030.0 73 1414. 1290 1490 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 460.0 85 560.0 103 355.0 65 542. 442 529 83 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 57.0 52 62.0 56 52.0 47 110. 85 79 53 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 1490.0 92 1810.0 112 1170.0 72 1617. 1701 1832 87 EMMETT NR, ID APR-JUL 1110.0 89 1450.0 116 760.0 61 1246. 1394 1448 79 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 121.0 90 145.0 108 97.0 72 134. 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 74 400.0 102 182.0 47 391. 479 467 62 BURNT RIVER HEREFORD NR, OR MAR-JUL 41.0 80 44.0 86 37.0 73 51. 57 54 80 LOWER SNAKE AND CENTRAL OREGON BASINS Jul-09 EarlyBird ________________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. 337 335 103 SALMON RIVER SALMON, ID (1) APR-JUL 1010.0 118 1290.0 151 725.0 85 857. 806 1248 111 WHITEBIRD, ID (1) JAN-JUL 7430.0 109 8360.0 123 6500.0 96 6805. 7310 7419 109 APR-JUL 6600.0 113 7530.0 129 5670.0 97 5851. 6560 7419 109 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 295.0 118 315.0 127 280.0 112 249. 347 351 112 APR-JUL 245.0 133 265.0 144 225.0 122 184. 301 351 112 TROY, OR (1) MAR-JUL 2050.0 130 2440.0 155 1660.0 105 1578. 1971 2396 118 APR-JUL 1770.0 139 2160.0 170 1380.0 108 1274. 1761 2396 118 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 5160.0 111 6170.0 133 4150.0 89 4645. 5729 6508 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 3616 96 APR-JUL 2570.0 97 2980.0 113 2150.0 81 2644. 3434 3616 96 APR-SEP 2720.0 97 3140.0 112 2310.0 82 2803. 3659 3616 96 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 79.0 149 87.0 164 71.0 134 53. 92 151 141 UMATILLA RIVER GIBBON NR, OR APR-JUL 120.0 164 129.0 177 110.0 151 73. 127 207 128 PENDLETON, OR APR-JUL 295.0 198 310.0 208 280.0 188 149. 285 505 136 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 515.0 98 540.0 102 490.0 93 528. 504 773 103 Jul-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 113.0 61 125.0 68 100.0 54 184. 143 136 51 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 14.4 40 18.1 50 10.7 30 36. 33 WESTSIDE AND SOUTHERN OREGON BASINS Jul-09 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 5870.0 92 7010.0 110 4740.0 74 6365. 6790 7636 88 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3460.0 108 4240.0 132 2680.0 83 3217. 3468 4136 99 APR-JUL 1920.0 114 2700.0 160 1140.0 67 1689. 2328 4136 99 APR-SEP 2190.0 114 2970.0 155 1410.0 73 1922. 2615 4136 99 CASTLE ROCK, WA APR-SEP 2900.0 110 3980.0 151 1820.0 69 2639. 3330 5827 94 JAN-JUL 4920.0 104 6000.0 127 3840.0 82 4709. 4998 5827 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 2646 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 985.0 118 1110.0 133 855.0 103 834. 1413 2368 101 WILLAMETTE RIVER SALEM, OR APR-SEP 4890.0 102 5480.0 114 4300.0 90 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 137.0 91 158.0 105 116.0 77 151. 164 185 83 JAN-JUL 164.0 91 185.0 102 142.0 78 181. 180 185 83 ROGUE RIVER RAYGOLD, OR APR-SEP 820.0 92 880.0 99 760.0 85 889. 1076 1638 82 JAN-JUL 1360.0 86 1420.0 90 1300.0 82 1584. 1697 1638 82 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 70.0 79 92.0 103 48.0 54 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 74.0 57 120.0 93 29.0 22 129. 79 82 54 APR-SEP 58.0 59 104.0 105 12.5 13 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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