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Water Supply Forecasts Northwest River Forecast Center Thursday December 13, 2007 at 21:19 GMT Observed precipitation through the 10th Future precip assumed to be normal No snow included Estimated runoff applied to forecasts UPPER COLUMBIA BASINS Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 10100.0 105 12700.0 132 7530.0 78 9619. 9985 FEB-SEP 13600.0 105 16200.0 125 11100.0 86 12960. 12300 APR-SEP 13200.0 106 15700.0 126 10600.0 85 12500. 11850 REVELSTOKE, BC JAN-JUL 14600.0 105 16900.0 122 12300.0 89 13880. 14190 ARROW LAKES INFLOW JAN-JUL 21600.0 103 24700.0 118 18500.0 88 20960. 20790 FEB-SEP 27200.0 103 30400.0 115 24100.0 91 26460. 24050 APR-SEP 25900.0 103 29000.0 115 22700.0 90 25110. 22920 BIRCHBANK, BC (1) JAN-JUL 40400.0 104 50800.0 130 30000.0 77 38930. 41180 APR-SEP 45100.0 104 55500.0 128 34700.0 80 43500. 42860 GRAND COULEE, WA (1) JAN-JUL 63900.0 102 82100.0 131 45700.0 73 62900. 66890 APR-SEP 65000.0 102 83200.0 130 46900.0 73 63990. 63870 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 71100.0 103 91500.0 133 50800.0 74 68910. 71930 APR-SEP 71800.0 103 92200.0 133 51400.0 74 69540. 68910 THE DALLES NR, OR (1) JAN-JUL 104000.0 97 134000.0 125 74600.0 70 107300. 114700 APR-AUG 90600.0 97 120000.0 129 60800.0 65 93090. 97540 APR-SEP 96000.0 97 126000.0 128 66300.0 67 98650. 101700 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 6550.0 104 8770.0 139 4330.0 69 6306. 6909 APR-AUG 6490.0 104 8710.0 139 4270.0 68 6248. 6628 APR-SEP 6890.0 104 9110.0 137 4670.0 70 6638. 6922 LEONIA, ID (1) APR-JUL 7300.0 104 10000.0 142 4580.0 65 7041. 7768 APR-SEP 8420.0 104 11100.0 137 5700.0 70 8125. 8545 BONNERS FERRY, ID APR-JUL 7880.0 103 10200.0 134 5620.0 74 7619. 8380 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 16700.0 104 20900.0 131 12500.0 78 16010. 17210 APR-SEP 17200.0 105 21500.0 131 12800.0 78 16450. 16790 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1860.0 103 2310.0 128 1420.0 79 1800. 2033 FEB-SEP 2380.0 103 2830.0 123 1940.0 84 2305. 2361 APR-SEP 2300.0 103 2750.0 123 1860.0 84 2227. 2291 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 735.0 104 1140.0 162 340.0 48 704. 504 MISSOULA ABV, MT APR-SEP 1620.0 102 2370.0 149 880.0 55 1595. 1344 MISSOULA BLO, MT APR-SEP 3040.0 103 4300.0 145 1780.0 60 2962. 2770 ST. REGIS, MT (1) APR-SEP 4020.0 103 6070.0 155 1970.0 50 3907. 3648 PLAINS NR, MT (1) APR-SEP 10900.0 99 15700.0 142 6110.0 55 11060. 10840 WHITEHORSE RAPIDS, ID (1) APR-SEP 12000.0 96 17500.0 140 6620.0 53 12460. 12060 BLACKFOOT RIVER BONNER NR, MT APR-SEP 885.0 99 1240.0 139 530.0 59 892. 840 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1420.0 104 1970.0 144 860.0 63 1364. 1319 Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1780.0 99 2250.0 125 1320.0 73 1801. 1780 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1700.0 98 2140.0 123 1260.0 72 1740. 1737 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2180.0 98 2990.0 134 1360.0 61 2224. 2357 APR-SEP 2080.0 98 2900.0 137 1260.0 59 2124. 2175 UPPER/MIDDLE COLUMBIA BASINS Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5690.0 98 7400.0 127 3990.0 68 5825. 6002 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6560.0 98 9240.0 138 3870.0 58 6713. 7002 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 795.0 98 1120.0 138 465.0 57 814. 997 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13500.0 97 19400.0 139 7640.0 55 13910. 14260 APR-JUL 12400.0 97 18200.0 143 6470.0 51 12740. 13520 BOX CANYON BLO, WA (1) APR-SEP 13800.0 98 18900.0 134 8740.0 62 14090. 14500 KETTLE RIVER LAURIER NR, WA APR-SEP 2000.0 101 2520.0 128 1480.0 75 1972. 2366 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 785.0 101 1070.0 138 500.0 64 778. 871 APR-JUL 745.0 101 1030.0 139 460.0 62 739. 841 COEUR D'ALENE LAKE IN, ID APR-JUL 2610.0 102 3720.0 146 1510.0 59 2552. 2456 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2780.0 101 2970.0 108 2600.0 95 2744. 2705 ST JOE RIVER CALDER, ID APR-SEP 1260.0 105 1670.0 139 855.0 71 1205. 1263 APR-JUL 1190.0 105 1600.0 141 785.0 69 1136. 1203 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1780.0 101 2740.0 155 825.0 47 1766. 1470 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1450.0 107 2230.0 165 680.0 50 1350. 1079 APR-SEP 1560.0 108 2340.0 161 790.0 54 1450. 1122 METHOW RIVER PATEROS NR, WA (1) APR-SEP 1040.0 106 1550.0 157 525.0 53 985. 1144 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1230.0 104 1430.0 121 1030.0 87 1185. 1345 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1680.0 103 2300.0 141 1060.0 65 1635. 1669 YAKIMA AND MAINSTEM SNAKE BASINS Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 136.0 102 187.0 141 84.0 63 133. 137 CLE ELUM, WA APR-SEP 930.0 103 1250.0 138 620.0 69 903. 906 PARKER NR, WA APR-SEP 1910.0 100 2550.0 133 1260.0 66 1918. 2346 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 122.0 102 171.0 143 72.0 60 120. 122 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 465.0 104 615.0 137 315.0 70 448. 475 NACHES RIVER NACHES NR, WA APR-SEP 850.0 102 1120.0 134 580.0 69 837. 1086 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 137.0 102 189.0 141 85.0 63 134. 154 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 245.0 101 315.0 130 173.0 71 242. 244 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 47.0 102 68.0 148 26.0 57 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 805.0 99 1040.0 128 570.0 70 815. 812 APR-SEP 895.0 99 1130.0 125 660.0 73 904. 861 PALISADES RES INFLOW, ID (1) APR-JUL 3340.0 100 4410.0 132 2260.0 68 3331. 3267 APR-SEP 3890.0 100 4960.0 128 2810.0 73 3875. 3672 HEISE NR, ID APR-JUL 3540.0 99 4720.0 133 2360.0 66 3561. 3618 APR-SEP 4130.0 99 5320.0 128 2950.0 71 4159. 4188 SHELLEY NR, ID (1) APR-JUL 4640.0 105 6000.0 136 3280.0 74 4428. 4634 APR-SEP 5580.0 105 6940.0 130 4220.0 79 5324. 5339 BLACKFOOT NR, ID (1) APR-JUL 4670.0 101 6090.0 132 3260.0 71 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 3130.0 97 4850.0 150 1400.0 43 3242. 2929 MILNER, ID APR-JUL 200.0 16 1130.0 92 130.0 11 1228. 996 KING HILL, ID (1) APR-JUL 1840.0 60 3220.0 106 460.0 15 3045. 3030 MURPHY NR, ID (1) APR-JUL 1960.0 63 3360.0 109 555.0 18 3092. 3104 WEISER, ID (1) JAN-JUL 7080.0 72 10200.0 104 3970.0 41 9793. 12140 APR-JUL 4170.0 72 7290.0 126 1060.0 18 5765. 8160 APR-SEP 5590.0 78 8700.0 121 2470.0 34 7192. 9471 BROWNLEE RES INFLOW APR-JUL 4680.0 74 7940.0 126 1420.0 22 6313. 8975 APR-SEP 6100.0 78 9360.0 120 2840.0 36 7801. 10350 HELLS CANYON, ID (1) APR-JUL 4790.0 74 8210.0 126 1380.0 21 6493. 9324 APR-SEP 6240.0 78 9650.0 121 2820.0 35 7977. 10740 LOWER GRANITE RES IN, WA (1) JAN-JUL 27800.0 93 38700.0 129 16900.0 56 30020. 32200 FEB-SEP 28100.0 93 39000.0 128 17300.0 57 30370. 31790 APR-JUL 20000.0 93 30800.0 143 9090.0 42 21550. 24440 APR-SEP 22400.0 93 33200.0 138 11500.0 48 24140. 26590 UPPER SNAKE BASINS Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 370.0 94 515.0 131 230.0 58 394. 401 SALT RIVER ETNA NR, WY APR-JUL 320.0 94 495.0 145 147.0 43 342. 363 HENRYS FORK ASHTON NR, ID APR-JUL 545.0 95 685.0 120 400.0 70 571. 659 ST. ANTHONY, ID APR-JUL 530.0 72 790.0 108 265.0 36 734. 819 REXBURG NR, ID APR-JUL 920.0 59 1340.0 86 500.0 32 1559. 1016 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 370.0 96 455.0 118 285.0 74 386. 370 TETON RIVER ST. ANTHONY NR, ID APR-JUL 390.0 97 550.0 136 230.0 57 403. 464 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 125.0 88 220.0 155 28.0 20 142. 229 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 74.0 86 124.0 144 23.0 27 86. 94 PORTNEUF RIVER TOPAZ, ID APR-SEP 93.0 98 126.0 133 60.0 63 95. 120 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 24.0 83 45.0 155 3.5 12 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 230.0 90 385.0 150 76.0 30 256. 431 MAGIC RESERVOIR INFLOW, ID APR-JUL 250.0 86 500.0 172 0.0 0 291. 591 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 75.0 86 146.0 168 3.4 4 87. 163 MIDDLE SNAKE BASINS Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 180.0 87 300.0 144 58.0 28 208. 276 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 495.0 81 990.0 162 1.0 0 613. 1050 OWYHEE RES OUTFLOW APR-JUL 115.0 53 610.0 281 7.6 4 217. 594 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 610.0 96 800.0 126 420.0 66 636. 828 BOISE NR, ID (1) APR-JUL 1350.0 95 1960.0 139 750.0 53 1414. 2060 PARMA NR, ID APR-JUL 260.0 44 805.0 136 65.0 11 593. 1102 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 515.0 95 660.0 122 370.0 68 542. 816 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 96.0 87 160.0 145 32.0 29 110. 239 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 72.0 89 111.0 137 34.0 42 81. 155 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1630.0 101 2320.0 143 930.0 58 1617. 2214 EMMETT NR, ID APR-JUL 1310.0 105 2060.0 165 560.0 45 1246. 1977 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 133.0 99 185.0 138 81.0 60 134. 180 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 505.0 102 705.0 142 305.0 62 495. 684 WEISER RIVER WEISER NR, ID (1) APR-JUL 380.0 97 625.0 160 133.0 34 391. 717 BURNT RIVER HEREFORD NR, OR MAR-JUL 49.0 96 74.0 145 23.0 45 51. 81 LOWER SNAKE AND CENTRAL OREGON BASINS Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 66.0 94 92.0 131 39.0 56 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 275.0 91 380.0 126 171.0 57 301. 394 SALMON RIVER SALMON, ID (1) APR-JUL 865.0 101 1310.0 153 425.0 50 857. 1078 WHITEBIRD, ID (1) JAN-JUL 7060.0 104 9410.0 138 4720.0 69 6805. 7274 APR-JUL 6070.0 104 8420.0 144 3730.0 64 5851. 6441 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 235.0 94 320.0 129 150.0 60 249. 238 APR-JUL 174.0 95 255.0 139 90.0 49 184. 202 TROY, OR (1) MAR-JUL 1550.0 98 2290.0 145 810.0 51 1578. 1573 APR-JUL 1250.0 98 2000.0 157 510.0 40 1274. 1369 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4750.0 102 6960.0 150 2540.0 55 4645. 4316 SPALDING, ID (1) JAN-JUL 9880.0 102 13600.0 140 6140.0 63 9683. 9175 APR-JUL 7580.0 102 11300.0 152 3850.0 52 7435. 7274 APR-SEP 8010.0 102 11700.0 149 4270.0 54 7849. 7550 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3590.0 101 4840.0 136 2340.0 66 3547. 3507 APR-JUL 2680.0 101 3930.0 149 1430.0 54 2644. 2676 APR-SEP 2840.0 101 4090.0 146 1590.0 57 2803. 2786 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 53.0 100 71.0 134 34.0 64 53. 63 UMATILLA RIVER GIBBON NR, OR APR-JUL 72.0 99 108.0 148 37.0 51 73. 86 PENDLETON, OR APR-JUL 143.0 96 220.0 148 65.0 44 149. 178 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 158.0 99 215.0 134 102.0 64 160. 0 APR-JUL 122.0 99 179.0 146 66.0 54 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 585.0 98 870.0 146 305.0 51 597. 745 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1110.0 96 1630.0 141 600.0 52 1153. 1235 APR-SEP 835.0 97 1350.0 156 320.0 37 865. 1038 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 480.0 91 560.0 106 400.0 76 528. 497 Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 158.0 86 255.0 139 59.0 32 184. 316 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 31.0 86 50.0 139 11.9 33 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Dec-07 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6380.0 100 8360.0 131 4410.0 69 6365. 5621 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3230.0 100 4600.0 143 1860.0 58 3217. 3453 APR-JUL 1700.0 101 3070.0 182 325.0 19 1689. 1642 APR-SEP 1930.0 100 3300.0 172 560.0 29 1922. 1817 CASTLE ROCK, WA APR-SEP 2630.0 100 4530.0 172 725.0 27 2639. 2380 JAN-JUL 4690.0 100 6590.0 140 2790.0 59 4709. 5136 LEWIS RIVER ARIEL, WA JAN-JUL 2380.0 101 2810.0 120 1960.0 83 2351. 2514 MCKENZIE RIVER VIDA NR, OR APR-SEP 1170.0 97 1460.0 122 880.0 73 1201. 1142 S. SANTIAM RIVER WATERLOO, OR APR-SEP 575.0 98 845.0 144 305.0 52 587. 540 N. SANTIAM RIVER MEHAMA, OR APR-SEP 825.0 99 1120.0 134 530.0 64 834. 754 WILLAMETTE RIVER SALEM, OR APR-SEP 4690.0 98 6350.0 132 3030.0 63 4804. 4373 CLACKAMAS RIVER ESTACADA, OR APR-SEP 750.0 100 985.0 132 515.0 69 748. 678 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 147.0 97 196.0 130 98.0 65 151. 156 JAN-JUL 176.0 97 225.0 124 127.0 70 181. 195 ROGUE RIVER RAYGOLD, OR APR-SEP 875.0 98 1200.0 135 550.0 62 889. 895 JAN-JUL 1550.0 98 1880.0 119 1230.0 78 1584. 1970 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 72.0 81 117.0 131 28.0 31 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 110.0 85 197.0 153 23.0 18 129. 196 APR-SEP 85.0 86 172.0 174 0.0 0 99. 167 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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