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Water Supply Forecasts Northwest River Forecast Center Friday March 06, 2009 at 14:36 GMT Full month of observed precipitation Future precip assumed to be normal Snow included in this run Full complement runoff applied through FEB UPPER COLUMBIA BASINS Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 9030.0 94 10400.0 108 7610.0 79 9619. 9199 1697 94 FEB-JUL 8790.0 94 10200.0 109 7370.0 79 9372. 8909 1697 94 APR-SEP 11800.0 94 13200.0 106 10300.0 82 12500. 11570 1697 94 REVELSTOKE, BC JAN-JUL 13100.0 94 14300.0 103 11900.0 86 13880. 13420 2598 100 ARROW LAKES INFLOW JAN-JUL 19400.0 93 21800.0 104 17000.0 81 20960. 19230 4055 89 FEB-JUL 18800.0 93 21200.0 105 16400.0 81 20230. 18670 4055 89 APR-SEP 23500.0 94 25900.0 103 21100.0 84 25110. 22910 4055 89 BIRCHBANK, BC (1) JAN-JUL 34600.0 89 40900.0 105 28300.0 73 38930. 36130 7177 93 APR-SEP 38900.0 89 45200.0 104 32600.0 75 43500. 40800 7177 93 GRAND COULEE, WA (1) JAN-JUL 54900.0 87 65100.0 103 44600.0 71 62900. 59650 11570 85 APR-SEP 56300.0 88 66600.0 104 46100.0 72 63990. 62860 11570 85 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 59800.0 87 71600.0 104 47900.0 70 68910. 64110 12850 88 APR-SEP 60600.0 87 72500.0 104 48800.0 70 69540. 67150 12850 88 THE DALLES NR, OR (1) JAN-JUL 86200.0 80 104000.0 97 68500.0 64 107300. 99210 25160 84 APR-AUG 74800.0 80 92500.0 99 57200.0 61 93090. 93200 25160 84 APR-SEP 79300.0 80 96900.0 98 61600.0 62 98650. 97910 25160 84 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5250.0 83 6650.0 105 3850.0 61 6306. 5516 1005 76 APR-AUG 5250.0 84 6650.0 106 3850.0 62 6248. 5539 1005 76 APR-SEP 5570.0 84 6970.0 105 4170.0 63 6638. 5887 1005 76 LEONIA, ID (1) APR-JUL 5830.0 83 7560.0 107 4110.0 58 7041. 6568 1204 69 APR-SEP 6730.0 83 8460.0 104 5010.0 62 8125. 7516 1204 69 BONNERS FERRY, ID APR-JUL 6380.0 84 7960.0 104 4770.0 63 7619. 7099 1268 68 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 13200.0 82 15800.0 99 10500.0 66 16010. 14250 2480 79 APR-SEP 13700.0 83 16600.0 101 10700.0 65 16450. 15060 2480 79 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1690.0 94 2080.0 116 1290.0 72 1800. 1691 357 106 FEB-JUL 1630.0 93 2030.0 116 1240.0 71 1746. 1638 357 106 APR-SEP 2080.0 93 2480.0 111 1690.0 76 2227. 2111 357 106 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 675.0 96 1050.0 149 290.0 41 704. 852 320 117 MISSOULA ABV, MT APR-SEP 1520.0 95 2040.0 128 995.0 62 1595. 1798 553 120 MISSOULA BLO, MT APR-SEP 2790.0 94 3570.0 121 2000.0 68 2962. 3420 904 118 ST. REGIS, MT (1) APR-SEP 3600.0 92 5000.0 128 2200.0 56 3907. 4509 1207 117 PLAINS NR, MT (1) APR-SEP 9690.0 88 12400.0 112 6950.0 63 11060. 12090 2275 92 WHITEHORSE RAPIDS, ID (1) APR-SEP 10800.0 87 14000.0 112 7680.0 62 12460. 13630 2410 83 BLACKFOOT RIVER BONNER NR, MT APR-SEP 860.0 96 1190.0 133 535.0 60 892. 946 233 126 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1260.0 92 1560.0 114 950.0 70 1364. 1597 386 125 Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1450.0 81 1790.0 99 1110.0 62 1801. 1865 196 66 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1470.0 84 1800.0 103 1150.0 66 1740. 2103 192 67 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2010.0 90 2540.0 114 1490.0 67 2224. 2506 347 95 APR-SEP 1930.0 91 2450.0 115 1400.0 66 2124. 2530 347 95 UPPER/MIDDLE COLUMBIA BASINS Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 4980.0 85 6260.0 107 3700.0 64 5825. 6676 732 74 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 5780.0 86 7360.0 110 4190.0 62 6713. 7562 1182 97 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 670.0 82 900.0 111 440.0 54 814. 849 163 64 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 11900.0 86 15200.0 109 8510.0 61 13910. 15810 3049 87 APR-JUL 10900.0 86 14300.0 112 7570.0 59 12740. 14580 3049 87 BOX CANYON BLO, WA (1) APR-SEP 12100.0 86 15200.0 108 8910.0 63 14090. 16110 3161 87 KETTLE RIVER LAURIER NR, WA APR-SEP 1680.0 85 2090.0 106 1280.0 65 1972. 1517 146 77 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 620.0 80 855.0 110 390.0 50 778. 1302 235 60 APR-JUL 590.0 80 825.0 112 360.0 49 739. 1258 235 60 COEUR D'ALENE LAKE IN, ID APR-JUL 2050.0 80 2800.0 110 1300.0 51 2552. 3826 1041 79 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2230.0 81 2340.0 85 2120.0 77 2744. 4128 1093 79 ST JOE RIVER CALDER, ID APR-SEP 965.0 80 1240.0 103 685.0 57 1205. 1656 379 106 APR-JUL 920.0 81 1200.0 106 645.0 57 1136. 1571 379 106 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1040.0 59 1650.0 93 435.0 25 1766. 1542 322 84 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 825.0 61 1220.0 90 425.0 31 1350. 1189 214 97 APR-SEP 885.0 61 1290.0 89 485.0 33 1450. 1259 214 97 METHOW RIVER PATEROS NR, WA (1) APR-SEP 620.0 63 945.0 96 290.0 29 985. 926 164 117 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 825.0 70 1040.0 88 615.0 52 1185. 1157 309 120 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1200.0 73 1750.0 107 650.0 40 1635. 1521 612 122 YAKIMA AND MAINSTEM SNAKE BASINS Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 100.0 75 131.0 98 68.0 51 133. 174 101 100 CLE ELUM, WA APR-SEP 670.0 74 805.0 89 535.0 59 903. 1013 617 120 PARKER NR, WA APR-SEP 1500.0 78 1850.0 96 1160.0 60 1918. 2325 1271 110 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 90.0 75 116.0 97 64.0 53 120. 150 87 104 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 340.0 76 405.0 90 275.0 61 448. 479 230 119 NACHES RIVER NACHES NR, WA APR-SEP 640.0 76 795.0 95 480.0 57 837. 991 431 119 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 110.0 82 140.0 104 80.0 60 134. 155 61 97 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 192.0 79 240.0 99 145.0 60 242. 247 114 97 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 36.0 78 54.0 117 17.9 39 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 710.0 87 890.0 109 535.0 66 815. 894 141 81 APR-SEP 790.0 87 965.0 107 610.0 67 904. 970 141 81 PALISADES RES INFLOW, ID (1) APR-JUL 2910.0 87 3620.0 109 2200.0 66 3331. 3352 840 91 APR-SEP 3390.0 87 4100.0 106 2670.0 69 3875. 3850 840 91 HEISE NR, ID APR-JUL 3110.0 87 3910.0 110 2310.0 65 3561. 3644 1024 97 APR-SEP 3630.0 87 4430.0 107 2830.0 68 4159. 4282 1024 97 SHELLEY NR, ID (1) APR-JUL 3970.0 90 4830.0 109 3110.0 70 4428. 4541 1540 97 APR-SEP 4770.0 90 5630.0 106 3910.0 73 5324. 5320 1540 97 BLACKFOOT NR, ID (1) APR-JUL 4000.0 87 4880.0 106 3120.0 68 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2430.0 75 3620.0 112 1240.0 38 3242. 2731 1750 82 MILNER, ID APR-JUL 275.0 22 1180.0 96 160.0 13 1228. 160 191 15 KING HILL, ID (1) APR-JUL 1720.0 56 2770.0 91 665.0 22 3045. 1765 2034 57 MURPHY NR, ID (1) APR-JUL 1850.0 60 2980.0 96 730.0 24 3092. 1549 2247 61 WEISER, ID (1) JAN-JUL 5070.0 52 7470.0 76 2670.0 27 9793. 5966 3051 57 APR-JUL 3030.0 53 5430.0 94 630.0 11 5765. 3926 3051 57 APR-SEP 4420.0 61 6820.0 95 2010.0 28 7192. 5218 3051 57 BROWNLEE RES INFLOW APR-JUL 3350.0 53 5650.0 89 1050.0 17 6313. 4367 3436 61 APR-SEP 4740.0 61 7040.0 90 2440.0 31 7801. 5699 3436 61 HELLS CANYON, ID (1) APR-JUL 3400.0 52 5850.0 90 955.0 15 6493. 4738 3470 61 APR-SEP 4810.0 60 7250.0 91 2360.0 30 7977. 6060 3470 61 LOWER GRANITE RES IN, WA (1) JAN-JUL 22400.0 75 29600.0 99 15100.0 50 30020. 27520 7612 76 FEB-SEP 22400.0 74 29600.0 97 15100.0 50 30370. 28890 7612 76 APR-JUL 16200.0 75 23500.0 109 8970.0 42 21550. 22830 7612 76 APR-SEP 18200.0 75 25400.0 105 10900.0 45 24140. 25390 7612 76 UPPER SNAKE BASINS Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 380.0 96 480.0 122 285.0 72 394. 389 76 99 SALT RIVER ETNA NR, WY APR-JUL 320.0 94 460.0 135 183.0 54 342. 311 151 96 HENRYS FORK ASHTON NR, ID APR-JUL 475.0 83 600.0 105 350.0 61 571. 518 384 90 ST. ANTHONY, ID APR-JUL 540.0 74 785.0 107 290.0 40 734. 703 451 91 REXBURG NR, ID APR-JUL 1210.0 78 1600.0 103 815.0 52 1559. 905 566 69 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 310.0 80 390.0 101 235.0 61 386. 308 80 55 TETON RIVER ST. ANTHONY NR, ID APR-JUL 310.0 77 450.0 112 167.0 41 403. 445 137 97 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 106.0 75 183.0 129 28.0 20 142. 80 45 72 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 79.0 92 115.0 134 43.0 50 86. 41 9 53 PORTNEUF RIVER TOPAZ, ID APR-SEP 75.0 79 100.0 105 49.0 52 95. 61 32 67 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 19.9 69 36.0 124 3.4 12 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 171.0 67 280.0 109 63.0 25 256. 185 50 90 MAGIC RESERVOIR INFLOW, ID APR-JUL 164.0 56 330.0 113 0.0 0 291. 172 21 49 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 58.0 67 103.0 118 11.8 14 87. 50 15 75 MIDDLE SNAKE BASINS Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 184.0 88 295.0 142 75.0 36 208. 155 27 61 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 480.0 78 680.0 111 280.0 46 613. 452 105 49 OWYHEE RES OUTFLOW APR-JUL 25.0 12 190.0 88 6.5 3 217. 53 14 22 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 470.0 74 605.0 95 335.0 53 636. 655 123 83 BOISE NR, ID (1) APR-JUL 995.0 70 1410.0 100 580.0 41 1414. 1290 264 73 PARMA NR, ID APR-JUL 139.0 23 505.0 85 84.0 14 593. 319 255 62 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 375.0 69 485.0 89 265.0 49 542. 442 87 84 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 53.0 48 105.0 95 0.5 0 110. 85 24 57 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 42.0 52 67.0 83 17.9 22 81. 80 20 71 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1040.0 64 1520.0 94 550.0 34 1617. 1701 349 74 EMMETT NR, ID APR-JUL 715.0 57 1230.0 99 330.0 26 1246. 1394 317 60 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 88.0 66 120.0 90 56.0 42 134. 141 22 83 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 330.0 67 465.0 94 194.0 39 495. 525 113 71 WEISER RIVER WEISER NR, ID (1) APR-JUL 255.0 65 465.0 119 41.0 10 391. 479 95 43 BURNT RIVER HEREFORD NR, OR MAR-JUL 31.0 61 52.0 102 10.8 21 51. 57 14 81 LOWER SNAKE AND CENTRAL OREGON BASINS Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 48.0 69 68.0 97 27.0 39 70. 80 IMNAHA RIVER IMNAHA, OR MAR-JUL 220.0 73 305.0 101 136.0 45 301. 337 56 87 SALMON RIVER SALMON, ID (1) APR-JUL 655.0 76 995.0 116 315.0 37 857. 806 343 92 WHITEBIRD, ID (1) JAN-JUL 5550.0 82 7310.0 107 3790.0 56 6805. 7310 1302 89 APR-JUL 4760.0 81 6520.0 111 3000.0 51 5851. 6560 1302 89 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 199.0 80 275.0 110 122.0 49 249. 347 59 81 APR-JUL 147.0 80 225.0 122 70.0 38 184. 301 59 81 TROY, OR (1) MAR-JUL 1310.0 83 1750.0 111 870.0 55 1578. 1971 465 79 APR-JUL 1050.0 82 1490.0 117 615.0 48 1274. 1761 465 79 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4280.0 92 5840.0 126 2730.0 59 4645. 5729 1266 111 SPALDING, ID (1) JAN-JUL 8570.0 89 11000.0 114 6170.0 64 9683. 10500 2268 100 APR-JUL 6490.0 87 8890.0 120 4090.0 55 7435. 9382 2268 100 APR-SEP 6860.0 87 9260.0 118 4450.0 57 7849. 9851 2268 100 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 2970.0 84 3890.0 110 2040.0 58 3547. 3823 886 95 APR-JUL 2170.0 82 3100.0 117 1240.0 47 2644. 3434 886 95 APR-SEP 2300.0 82 3230.0 115 1370.0 49 2803. 3659 886 95 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 51.0 96 68.0 128 35.0 66 53. 92 43 89 UMATILLA RIVER GIBBON NR, OR APR-JUL 76.0 104 106.0 145 45.0 62 73. 127 59 90 PENDLETON, OR APR-JUL 156.0 105 225.0 151 85.0 57 149. 285 126 82 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 125.0 78 180.0 113 70.0 44 160. 0 APR-JUL 96.0 78 151.0 123 41.0 33 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 465.0 78 725.0 121 205.0 34 597. 883 129 50 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 930.0 81 1370.0 119 495.0 43 1153. 1362 206 49 APR-SEP 700.0 81 1140.0 132 260.0 30 865. 1152 206 49 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 460.0 87 515.0 98 410.0 78 528. 504 453 111 Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 137.0 74 215.0 117 61.0 33 184. 143 23 27 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 26.0 72 41.0 114 9.9 27 36. 33 WESTSIDE AND SOUTHERN OREGON BASINS Mar-09 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 4930.0 77 6380.0 100 3480.0 55 6365. 6790 3328 83 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3060.0 95 4020.0 125 2100.0 65 3217. 3468 2133 94 APR-JUL 1430.0 85 2390.0 142 475.0 28 1689. 2328 2133 94 APR-SEP 1630.0 85 2590.0 135 670.0 35 1922. 2615 2133 94 CASTLE ROCK, WA APR-SEP 2250.0 85 3610.0 137 900.0 34 2639. 3330 3110 88 JAN-JUL 4500.0 96 5850.0 124 3150.0 67 4709. 4998 3110 88 LEWIS RIVER ARIEL, WA JAN-JUL 2130.0 91 2500.0 106 1750.0 74 2351. 2397 1448 74 MCKENZIE RIVER VIDA NR, OR APR-SEP 1070.0 89 1360.0 113 780.0 65 1201. 1674 1337 89 S. SANTIAM RIVER WATERLOO, OR APR-SEP 525.0 89 795.0 135 260.0 44 587. 895 1094 80 N. SANTIAM RIVER MEHAMA, OR APR-SEP 735.0 88 1000.0 120 465.0 56 834. 1413 1234 88 WILLAMETTE RIVER SALEM, OR APR-SEP 4130.0 86 5790.0 121 2470.0 51 4804. 6084 7214 70 CLACKAMAS RIVER ESTACADA, OR APR-SEP 720.0 96 920.0 123 515.0 69 748. 1174 858 79 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 134.0 89 171.0 113 97.0 64 151. 164 106 94 JAN-JUL 162.0 90 199.0 110 125.0 69 181. 180 106 94 ROGUE RIVER RAYGOLD, OR APR-SEP 740.0 83 970.0 109 515.0 58 889. 1076 737 69 JAN-JUL 1240.0 78 1460.0 92 1010.0 64 1584. 1697 737 69 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 62.0 70 98.0 110 27.0 30 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 96.0 74 176.0 136 16.6 13 129. 79 11 41 APR-SEP 73.0 74 153.0 155 0.0 0 99. 82 11 41 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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