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Water Supply Forecasts Northwest River Forecast Center Monday February 12, 2007 at 17:42 GMT Full month of observed precipitation Future precip is 50% of normal for the first half of FEB and normal for the remainder of the period Snow included Observed runoff applied to forecasts UPPER COLUMBIA BASINS Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 10700.0 111 12400.0 129 8990.0 93 9619. 9985 1289 82 FEB-SEP 14400.0 111 16200.0 125 12700.0 98 12960. 12300 1289 82 APR-SEP 13900.0 111 15600.0 125 12200.0 98 12500. 11850 1289 82 REVELSTOKE, BC JAN-JUL 14900.0 107 16400.0 118 13500.0 97 13880. 14190 1735 76 ARROW LAKES INFLOW JAN-JUL 22200.0 106 24900.0 119 19500.0 93 20960. 20790 3001 76 FEB-SEP 28200.0 107 30900.0 117 25500.0 96 26460. 24050 3001 76 APR-SEP 26800.0 107 29500.0 117 24100.0 96 25110. 22920 3001 76 BIRCHBANK, BC (1) JAN-JUL 41400.0 106 48600.0 125 34100.0 88 38930. 41180 5831 89 APR-SEP 46300.0 106 53600.0 123 39100.0 90 43500. 42860 5831 89 GRAND COULEE, WA (1) JAN-JUL 63900.0 102 76400.0 121 51400.0 82 62900. 66890 10460 96 APR-SEP 65400.0 102 77800.0 122 52900.0 83 63990. 63870 10460 96 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 72000.0 104 86300.0 125 57700.0 84 68910. 71930 11610 99 APR-SEP 73100.0 105 87400.0 126 58800.0 85 69540. 68910 11610 99 THE DALLES NR, OR (1) JAN-JUL 101000.0 94 123000.0 115 78300.0 73 107300. 114700 21870 95 APR-AUG 88200.0 95 111000.0 119 65600.0 70 93090. 97540 21870 95 APR-SEP 93500.0 95 116000.0 118 70900.0 72 98650. 101700 21870 95 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 6420.0 102 7950.0 126 4890.0 78 6306. 6909 1109 99 APR-AUG 6370.0 102 7910.0 127 4840.0 77 6248. 6628 1109 99 APR-SEP 6770.0 102 8310.0 125 5240.0 79 6638. 6922 1109 99 LEONIA, ID (1) APR-JUL 7230.0 103 9130.0 130 5330.0 76 7041. 7768 1544 107 APR-SEP 8340.0 103 10200.0 126 6440.0 79 8125. 8545 1544 107 BONNERS FERRY, ID APR-JUL 7880.0 103 9570.0 126 6160.0 81 7619. 8380 1647 107 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 17000.0 106 20100.0 126 14000.0 87 16010. 17210 2718 104 APR-SEP 17600.0 107 20800.0 126 14300.0 87 16450. 16790 2718 104 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1880.0 104 2300.0 128 1460.0 81 1800. 2033 271 90 FEB-SEP 2400.0 104 2820.0 122 1980.0 86 2305. 2361 271 90 APR-SEP 2320.0 104 2740.0 123 1900.0 85 2227. 2291 271 90 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 620.0 88 1010.0 143 230.0 33 704. 504 216 97 MISSOULA ABV, MT APR-SEP 1400.0 88 1940.0 122 865.0 54 1595. 1344 386 104 MISSOULA BLO, MT APR-SEP 2590.0 87 3410.0 115 1770.0 60 2962. 2770 699 113 ST. REGIS, MT (1) APR-SEP 3470.0 89 5120.0 131 1820.0 47 3907. 3648 886 107 PLAINS NR, MT (1) APR-SEP 10400.0 94 13700.0 124 7140.0 65 11060. 10840 2239 112 WHITEHORSE RAPIDS, ID (1) APR-SEP 11500.0 92 15300.0 123 7730.0 62 12460. 12060 2458 107 BLACKFOOT RIVER BONNER NR, MT APR-SEP 780.0 87 1140.0 128 415.0 47 892. 840 171 114 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1190.0 87 1540.0 113 835.0 61 1364. 1319 299 119 Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1790.0 99 2170.0 120 1410.0 78 1801. 1780 388 152 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1690.0 97 2040.0 117 1340.0 77 1740. 1737 352 145 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2060.0 93 2660.0 120 1460.0 66 2224. 2357 355 119 APR-SEP 1970.0 93 2570.0 121 1380.0 65 2124. 2175 355 119 UPPER/MIDDLE COLUMBIA BASINS Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5600.0 96 7020.0 121 4180.0 72 5825. 6002 1063 128 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6510.0 97 8340.0 124 4680.0 70 6713. 7002 1371 138 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 805.0 99 1100.0 135 515.0 63 814. 997 219 111 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13000.0 93 17100.0 123 8780.0 63 13910. 14260 3253 118 APR-JUL 11900.0 93 16100.0 126 7710.0 61 12740. 13520 3253 118 BOX CANYON BLO, WA (1) APR-SEP 13200.0 94 17000.0 121 9500.0 67 14090. 14500 3377 119 KETTLE RIVER LAURIER NR, WA APR-SEP 1920.0 97 2400.0 122 1450.0 74 1972. 2366 91 59 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 750.0 96 1000.0 129 495.0 64 778. 871 336 126 APR-JUL 710.0 96 960.0 130 460.0 62 739. 841 336 126 COEUR D'ALENE LAKE IN, ID APR-JUL 2400.0 94 3170.0 124 1630.0 64 2552. 2456 976 111 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2690.0 98 2840.0 103 2530.0 92 2744. 2705 1020 110 ST JOE RIVER CALDER, ID APR-SEP 1150.0 95 1450.0 120 850.0 71 1205. 1263 315 124 APR-JUL 1080.0 95 1370.0 121 780.0 69 1136. 1203 315 124 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1900.0 108 2700.0 153 1100.0 62 1766. 1470 375 123 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1610.0 119 2200.0 163 1020.0 76 1350. 1079 301 166 APR-SEP 1730.0 119 2320.0 160 1150.0 79 1450. 1122 301 166 METHOW RIVER PATEROS NR, WA (1) APR-SEP 1180.0 120 1590.0 161 765.0 78 985. 1144 161 138 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1400.0 118 1630.0 138 1170.0 99 1185. 1345 331 160 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1970.0 120 2550.0 156 1400.0 86 1635. 1669 523 131 YAKIMA AND MAINSTEM SNAKE BASINS Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 152.0 114 186.0 140 118.0 89 133. 137 86 104 CLE ELUM, WA APR-SEP 1040.0 115 1210.0 134 865.0 96 903. 906 488 120 PARKER NR, WA APR-SEP 2220.0 116 2640.0 138 1810.0 94 1918. 2346 1135 130 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 136.0 113 165.0 138 108.0 90 120. 122 80 120 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 515.0 115 605.0 135 425.0 95 448. 475 197 127 NACHES RIVER NACHES NR, WA APR-SEP 940.0 112 1110.0 133 775.0 93 837. 1086 462 170 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 156.0 116 189.0 141 122.0 91 134. 154 77 154 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 270.0 112 325.0 134 215.0 89 242. 244 133 149 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 55.0 120 74.0 161 36.0 78 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-SEP 725.0 80 915.0 101 535.0 59 904. 861 128 89 APR-JUL 655.0 80 845.0 104 465.0 57 815. 812 128 89 PALISADES RES INFLOW, ID (1) APR-JUL 2530.0 76 3400.0 102 1650.0 50 3331. 3267 709 92 HEISE NR, ID APR-JUL 2700.0 76 3670.0 103 1730.0 49 3561. 3618 853 97 SHELLEY NR, ID (1) APR-JUL 3550.0 80 4540.0 103 2560.0 58 4428. 4634 1387 103 BLACKFOOT NR, ID (1) APR-JUL 3570.0 78 4580.0 99 2560.0 56 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2000.0 62 3390.0 105 605.0 19 3242. 2929 1517 87 MILNER, ID APR-JUL 135.0 11 290.0 24 135.0 11 1228. 996 347 35 KING HILL, ID (1) APR-JUL 1610.0 53 2790.0 92 420.0 14 3045. 3030 1945 68 MURPHY NR, ID (1) APR-JUL 1700.0 55 2950.0 95 460.0 15 3092. 3104 2011 68 WEISER, ID (1) JAN-JUL 5590.0 57 8440.0 86 2750.0 28 9793. 12140 2892 70 APR-JUL 3230.0 56 6080.0 105 385.0 7 5765. 8160 2892 70 BROWNLEE RES INFLOW APR-JUL 3630.0 58 6390.0 101 865.0 14 6313. 8975 3054 70 HELLS CANYON, ID (1) APR-JUL 3700.0 57 6750.0 104 645.0 10 6493. 9324 3139 72 LOWER GRANITE RES IN, WA (1) JAN-JUL 23000.0 77 32300.0 108 13700.0 46 30020. 32200 6294 83 FEB-SEP 23500.0 77 32800.0 108 14200.0 47 30370. 31790 6294 83 APR-JUL 16800.0 78 26100.0 121 7460.0 35 21550. 24440 6294 83 UPPER SNAKE BASINS Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 285.0 72 395.0 100 173.0 44 394. 401 70 107 SALT RIVER ETNA NR, WY APR-JUL 235.0 69 380.0 111 85.0 25 342. 363 126 95 HENRYS FORK ASHTON NR, ID APR-JUL 480.0 84 620.0 109 345.0 60 571. 659 340 97 ST. ANTHONY, ID APR-JUL 610.0 83 865.0 118 350.0 48 734. 819 433 108 REXBURG NR, ID APR-JUL 1290.0 83 1690.0 108 880.0 56 1559. 1016 574 85 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 305.0 79 385.0 100 225.0 58 386. 370 98 80 TETON RIVER ST. ANTHONY NR, ID APR-JUL 310.0 77 460.0 114 161.0 40 403. 464 128 108 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 102.0 72 182.0 128 22.0 15 142. 229 43 82 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 54.0 63 97.0 113 10.4 12 86. 94 11 81 PORTNEUF RIVER TOPAZ, ID APR-SEP 69.0 73 96.0 101 41.0 43 95. 120 31 82 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 21.0 72 40.0 138 0.8 3 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 177.0 69 305.0 119 47.0 18 256. 431 47 101 MAGIC RESERVOIR INFLOW, ID APR-JUL 147.0 51 355.0 122 -62.0 -20 291. 591 32 99 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 54.0 62 102.0 117 6.9 8 87. 163 17 106 MIDDLE SNAKE BASINS Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 141.0 68 255.0 123 25.0 12 208. 276 25 78 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 295.0 48 750.0 122 -155.0 -24 613. 1050 86 68 OWYHEE RES OUTFLOW APR-JUL 21.0 10 410.0 189 -7.8 -3 217. 594 15 55 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 495.0 78 655.0 103 330.0 52 636. 828 115 101 BOISE NR, ID (1) APR-JUL 1030.0 73 1530.0 108 540.0 38 1414. 2060 249 94 PARMA NR, ID APR-JUL 117.0 20 520.0 88 52.0 9 593. 1102 209 72 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 380.0 70 500.0 92 265.0 49 542. 816 83 102 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 60.0 55 126.0 115 -5.9 -4 110. 239 20 78 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 52.0 64 87.0 107 16.5 20 81. 155 16 84 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1310.0 81 1870.0 116 745.0 46 1617. 2214 344 94 EMMETT NR, ID APR-JUL 1040.0 83 1650.0 132 445.0 36 1246. 1977 261 67 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 110.0 82 149.0 111 71.0 53 134. 180 23 106 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 415.0 84 580.0 117 250.0 51 495. 684 121 95 WEISER RIVER WEISER NR, ID (1) APR-JUL 300.0 77 535.0 137 67.0 17 391. 717 80 61 BURNT RIVER HEREFORD NR, OR MAR-JUL 30.0 59 55.0 108 6.3 12 51. 81 9 75 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 45.0 64 66.0 94 23.0 33 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 225.0 75 320.0 106 136.0 45 301. 394 44 89 SALMON RIVER SALMON, ID (1) APR-JUL 685.0 80 1060.0 124 310.0 36 857. 1078 326 105 WHITEBIRD, ID (1) JAN-JUL 5690.0 84 7750.0 114 3630.0 53 6805. 7274 1176 98 APR-JUL 4900.0 84 6960.0 119 2840.0 49 5851. 6441 1176 98 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 173.0 69 255.0 102 93.0 37 249. 238 30 69 APR-JUL 128.0 70 210.0 114 48.0 26 184. 202 30 69 TROY, OR (1) MAR-JUL 1280.0 81 1850.0 117 710.0 45 1578. 1573 352 90 APR-JUL 1040.0 82 1610.0 126 470.0 37 1274. 1369 352 90 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4280.0 92 6040.0 130 2520.0 54 4645. 4316 936 113 SPALDING, ID (1) JAN-JUL 8900.0 92 11900.0 123 5920.0 61 9683. 9175 1829 116 APR-JUL 6920.0 93 9900.0 133 3940.0 53 7435. 7274 1829 116 APR-SEP 7300.0 93 10300.0 131 4320.0 55 7849. 7550 1829 116 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3250.0 92 4390.0 124 2120.0 60 3547. 3507 787 120 APR-JUL 2460.0 93 3600.0 136 1330.0 50 2644. 2676 787 120 APR-SEP 2620.0 93 3750.0 134 1480.0 53 2803. 2786 787 120 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 54.0 102 72.0 136 36.0 68 53. 63 38 103 UMATILLA RIVER GIBBON NR, OR APR-JUL 69.0 95 100.0 137 38.0 52 73. 86 53 119 PENDLETON, OR APR-JUL 129.0 87 200.0 134 58.0 39 149. 178 117 117 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 123.0 77 181.0 113 66.0 41 160. 0 APR-JUL 95.0 77 153.0 124 38.0 31 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 475.0 80 745.0 125 205.0 34 597. 745 156 100 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 865.0 75 1350.0 117 380.0 33 1153. 1235 189 72 APR-SEP 650.0 75 1140.0 132 164.0 19 865. 1038 189 72 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 510.0 97 580.0 110 440.0 83 528. 497 317 95 Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 110.0 60 205.0 111 17.4 9 184. 316 36 73 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 20.0 56 36.0 100 4.6 13 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Feb-07 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6980.0 110 8600.0 135 5350.0 84 6365. 5621 4025 123 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3200.0 99 4300.0 134 2100.0 65 3217. 3453 2252 128 APR-JUL 1720.0 102 2820.0 167 625.0 37 1689. 1642 2252 128 APR-SEP 1960.0 102 3050.0 159 860.0 45 1922. 1817 2252 128 CASTLE ROCK, WA APR-SEP 2570.0 97 4110.0 156 1020.0 39 2639. 2380 3620 131 JAN-JUL 4600.0 98 6150.0 131 3060.0 65 4709. 5136 3620 131 LEWIS RIVER ARIEL, WA JAN-JUL 2230.0 95 2620.0 111 1840.0 78 2351. 2514 1769 116 MCKENZIE RIVER VIDA NR, OR APR-SEP 1150.0 96 1440.0 120 865.0 72 1201. 1142 1346 116 S. SANTIAM RIVER WATERLOO, OR APR-SEP 535.0 91 805.0 137 265.0 45 587. 540 1259 119 N. SANTIAM RIVER MEHAMA, OR APR-SEP 775.0 93 1060.0 127 490.0 59 834. 754 1344 124 WILLAMETTE RIVER SALEM, OR APR-SEP 4330.0 90 6010.0 125 2650.0 55 4804. 4373 8970 114 CLACKAMAS RIVER ESTACADA, OR APR-SEP 725.0 97 930.0 124 515.0 69 748. 678 1073 128 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 133.0 88 178.0 118 88.0 58 151. 156 77 85 JAN-JUL 159.0 88 205.0 113 114.0 63 181. 195 77 85 ROGUE RIVER RAYGOLD, OR APR-SEP 810.0 91 1110.0 125 510.0 57 889. 895 742 91 JAN-JUL 1360.0 86 1660.0 105 1060.0 67 1584. 1970 742 91 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 55.0 62 95.0 107 15.0 17 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 83.0 64 163.0 126 3.5 3 129. 196 9 60 APR-SEP 64.0 65 144.0 145 -16.2 -15 99. 167 9 60 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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