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Water Supply Forecasts Northwest River Forecast Center Friday March 07, 2008 at 19:01 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-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 9970.0 104 11400.0 119 8560.0 89 9619. 9985 1909 106 FEB-SEP 13400.0 103 14800.0 114 12000.0 93 12960. 12300 1909 106 APR-SEP 12900.0 103 14300.0 114 11500.0 92 12500. 11850 1909 106 REVELSTOKE, BC JAN-JUL 14400.0 104 15600.0 112 13200.0 95 13880. 14190 2785 108 ARROW LAKES INFLOW JAN-JUL 21000.0 100 23400.0 112 18600.0 89 20960. 20790 3964 87 FEB-SEP 26700.0 101 29100.0 110 24300.0 92 26460. 24050 3964 87 APR-SEP 25600.0 102 28000.0 112 23200.0 92 25110. 22920 3964 87 BIRCHBANK, BC (1) JAN-JUL 38800.0 100 45100.0 116 32500.0 83 38930. 41180 7134 92 APR-SEP 43800.0 101 50100.0 115 37500.0 86 43500. 42860 7134 92 GRAND COULEE, WA (1) JAN-JUL 62300.0 99 72500.0 115 52000.0 83 62900. 66890 10870 80 APR-SEP 65000.0 102 75200.0 118 54700.0 85 63990. 63870 10870 80 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 68700.0 100 80600.0 117 56900.0 83 68910. 71930 11400 78 APR-SEP 71300.0 103 83200.0 120 59500.0 86 69540. 68910 11400 78 THE DALLES NR, OR (1) JAN-JUL 103000.0 96 121000.0 113 85900.0 80 107300. 114700 22130 74 APR-AUG 94300.0 101 112000.0 120 76600.0 82 93090. 97540 22130 74 APR-SEP 99900.0 101 118000.0 120 82300.0 83 98650. 101700 22130 74 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 6190.0 98 7590.0 120 4790.0 76 6306. 6909 998 76 APR-AUG 6240.0 100 7640.0 122 4840.0 77 6248. 6628 998 76 APR-SEP 6620.0 100 8020.0 121 5220.0 79 6638. 6922 998 76 LEONIA, ID (1) APR-JUL 7250.0 103 8970.0 127 5520.0 78 7041. 7768 1290 74 APR-SEP 8360.0 103 10100.0 124 6640.0 82 8125. 8545 1290 74 BONNERS FERRY, ID APR-JUL 7890.0 104 9470.0 124 6280.0 82 7619. 8380 1387 75 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 15800.0 99 18400.0 115 13100.0 82 16010. 17210 2454 78 APR-SEP 16600.0 101 19500.0 119 13600.0 83 16450. 16790 2454 78 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1830.0 102 2230.0 124 1440.0 80 1800. 2033 312 93 FEB-SEP 2350.0 102 2740.0 119 1950.0 85 2305. 2361 312 93 APR-SEP 2280.0 102 2670.0 120 1880.0 84 2227. 2291 312 93 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 690.0 98 1070.0 152 310.0 44 704. 504 217 79 MISSOULA ABV, MT APR-SEP 1530.0 96 2050.0 129 1000.0 63 1595. 1344 365 79 MISSOULA BLO, MT APR-SEP 3010.0 102 3800.0 128 2220.0 75 2962. 2770 618 80 ST. REGIS, MT (1) APR-SEP 4040.0 103 5440.0 139 2640.0 68 3907. 3648 832 81 PLAINS NR, MT (1) APR-SEP 11100.0 100 13900.0 126 8400.0 76 11060. 10840 1751 71 WHITEHORSE RAPIDS, ID (1) APR-SEP 12400.0 100 15600.0 125 9280.0 74 12460. 12060 1821 63 BLACKFOOT RIVER BONNER NR, MT APR-SEP 835.0 94 1160.0 130 510.0 57 892. 840 149 80 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1480.0 109 1780.0 130 1170.0 86 1364. 1319 261 84 Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1910.0 106 2250.0 125 1570.0 87 1801. 1780 209 70 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1750.0 101 2080.0 120 1430.0 82 1740. 1737 206 72 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2100.0 94 2620.0 118 1580.0 71 2224. 2357 258 71 APR-SEP 2040.0 96 2560.0 121 1520.0 72 2124. 2175 258 71 UPPER/MIDDLE COLUMBIA BASINS Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5850.0 100 7130.0 122 4570.0 78 5825. 6002 676 68 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6730.0 100 8320.0 124 5150.0 77 6713. 7002 956 78 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 870.0 107 1100.0 135 640.0 79 814. 997 189 74 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 14000.0 101 17400.0 125 10600.0 76 13910. 14260 2566 73 APR-JUL 12800.0 100 16200.0 127 9470.0 74 12740. 13520 2566 73 BOX CANYON BLO, WA (1) APR-SEP 14300.0 101 17600.0 125 11100.0 79 14090. 14500 2605 72 KETTLE RIVER LAURIER NR, WA APR-SEP 1950.0 99 2360.0 120 1550.0 79 1972. 2366 115 61 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 855.0 110 1090.0 140 620.0 80 778. 871 167 43 APR-JUL 810.0 110 1040.0 141 575.0 78 739. 841 167 43 COEUR D'ALENE LAKE IN, ID APR-JUL 2800.0 110 3550.0 139 2050.0 80 2552. 2456 673 51 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 3020.0 110 3130.0 114 2910.0 106 2744. 2705 714 52 ST JOE RIVER CALDER, ID APR-SEP 1340.0 111 1620.0 134 1060.0 88 1205. 1263 188 53 APR-JUL 1250.0 110 1530.0 135 975.0 86 1136. 1203 188 53 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1430.0 81 2030.0 115 820.0 46 1766. 1470 322 84 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1100.0 81 1500.0 111 700.0 52 1350. 1079 205 93 APR-SEP 1180.0 81 1580.0 109 780.0 54 1450. 1122 205 93 METHOW RIVER PATEROS NR, WA (1) APR-SEP 875.0 89 1200.0 122 545.0 55 985. 1144 129 92 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1150.0 97 1360.0 115 935.0 79 1185. 1345 222 86 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1780.0 109 2330.0 143 1230.0 75 1635. 1669 342 68 YAKIMA AND MAINSTEM SNAKE BASINS Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 167.0 126 198.0 149 135.0 102 133. 137 65 64 CLE ELUM, WA APR-SEP 1090.0 121 1230.0 136 960.0 106 903. 906 303 59 PARKER NR, WA APR-SEP 2250.0 117 2600.0 136 1910.0 100 1918. 2346 755 65 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 150.0 125 176.0 147 124.0 103 120. 122 56 67 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 550.0 123 620.0 138 485.0 108 448. 475 131 68 NACHES RIVER NACHES NR, WA APR-SEP 910.0 109 1070.0 128 755.0 90 837. 1086 271 75 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 148.0 110 178.0 133 118.0 88 134. 154 52 83 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 260.0 107 310.0 128 215.0 89 242. 244 88 75 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 52.0 113 70.0 152 34.0 74 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 800.0 98 975.0 120 620.0 76 815. 812 175 100 APR-SEP 890.0 98 1070.0 118 710.0 79 904. 861 175 100 PALISADES RES INFLOW, ID (1) APR-JUL 3240.0 97 3950.0 119 2530.0 76 3331. 3267 777 85 APR-SEP 3770.0 97 4490.0 116 3060.0 79 3875. 3672 777 85 HEISE NR, ID APR-JUL 3460.0 97 4260.0 120 2660.0 75 3561. 3618 878 83 APR-SEP 4040.0 97 4840.0 116 3240.0 78 4159. 4188 878 83 SHELLEY NR, ID (1) APR-JUL 4560.0 103 5420.0 122 3700.0 84 4428. 4634 1346 85 APR-SEP 5480.0 103 6340.0 119 4620.0 87 5324. 5339 1346 85 BLACKFOOT NR, ID (1) APR-JUL 4590.0 100 5470.0 119 3710.0 81 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 3140.0 97 4330.0 134 1950.0 60 3242. 2929 1641 76 MILNER, ID APR-JUL 485.0 39 1440.0 117 173.0 14 1228. 996 142 11 KING HILL, ID (1) APR-JUL 2160.0 71 3210.0 105 1110.0 36 3045. 3030 2164 61 MURPHY NR, ID (1) APR-JUL 2270.0 73 3390.0 110 1140.0 37 3092. 3104 2182 59 WEISER, ID (1) JAN-JUL 7530.0 77 9930.0 101 5120.0 52 9793. 12140 3178 60 APR-JUL 4900.0 85 7300.0 127 2490.0 43 5765. 8160 3178 60 APR-SEP 6340.0 88 8740.0 122 3940.0 55 7192. 9471 3178 60 BROWNLEE RES INFLOW APR-JUL 5500.0 87 7800.0 124 3200.0 51 6313. 8975 3392 60 APR-SEP 6940.0 89 9240.0 118 4640.0 59 7801. 10350 3392 60 HELLS CANYON, ID (1) APR-JUL 5660.0 87 8100.0 125 3210.0 49 6493. 9324 3476 61 APR-SEP 7130.0 89 9570.0 120 4680.0 59 7977. 10740 3476 61 LOWER GRANITE RES IN, WA (1) JAN-JUL 29200.0 97 36500.0 122 21900.0 73 30020. 32200 6487 65 FEB-SEP 30500.0 100 37800.0 124 23200.0 76 30370. 31790 6487 65 APR-JUL 23000.0 107 30300.0 141 15800.0 73 21550. 24440 6487 65 APR-SEP 25600.0 106 32800.0 136 18300.0 76 24140. 26590 6487 65 UPPER SNAKE BASINS Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 375.0 95 475.0 121 280.0 71 394. 401 111 144 SALT RIVER ETNA NR, WY APR-JUL 320.0 94 460.0 135 183.0 54 342. 363 121 77 HENRYS FORK ASHTON NR, ID APR-JUL 570.0 100 700.0 123 445.0 78 571. 659 350 82 ST. ANTHONY, ID APR-JUL 735.0 100 980.0 134 490.0 67 734. 819 396 80 REXBURG NR, ID APR-JUL 1520.0 97 1910.0 123 1130.0 72 1559. 1016 553 68 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 370.0 96 445.0 115 290.0 75 386. 370 93 64 TETON RIVER ST. ANTHONY NR, ID APR-JUL 410.0 102 555.0 138 270.0 67 403. 464 120 85 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 138.0 97 215.0 151 61.0 43 142. 229 42 67 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 79.0 92 115.0 134 43.0 50 86. 94 9 53 PORTNEUF RIVER TOPAZ, ID APR-SEP 83.0 87 109.0 115 58.0 61 95. 120 31 65 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 26.0 90 43.0 148 9.7 33 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 260.0 102 370.0 145 153.0 60 256. 431 42 75 MAGIC RESERVOIR INFLOW, ID APR-JUL 290.0 100 455.0 156 125.0 43 291. 591 19 45 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 91.0 105 137.0 157 45.0 52 87. 163 15 75 MIDDLE SNAKE BASINS Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 189.0 91 300.0 144 79.0 38 208. 276 24 54 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 545.0 89 745.0 122 345.0 56 613. 1050 99 46 OWYHEE RES OUTFLOW APR-JUL 36.0 17 205.0 94 16.8 8 217. 594 13 21 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 635.0 100 770.0 121 495.0 78 636. 828 141 95 BOISE NR, ID (1) APR-JUL 1400.0 99 1810.0 128 985.0 70 1414. 2060 279 77 PARMA NR, ID APR-JUL 305.0 51 670.0 113 96.0 16 593. 1102 232 56 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 540.0 100 650.0 120 430.0 79 542. 816 87 84 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 118.0 107 170.0 155 65.0 59 110. 239 20 48 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 87.0 107 111.0 137 62.0 77 81. 155 18 64 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1760.0 109 2250.0 139 1270.0 79 1617. 2214 432 92 EMMETT NR, ID APR-JUL 1580.0 127 2110.0 169 1050.0 84 1246. 1977 359 68 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 146.0 109 178.0 133 114.0 85 134. 180 27 102 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 550.0 111 685.0 138 415.0 84 495. 684 165 103 WEISER RIVER WEISER NR, ID (1) APR-JUL 465.0 119 675.0 173 250.0 64 391. 717 153 69 BURNT RIVER HEREFORD NR, OR MAR-JUL 57.0 112 78.0 153 37.0 73 51. 81 LOWER SNAKE AND CENTRAL OREGON BASINS Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 76.0 109 97.0 139 56.0 80 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 345.0 115 430.0 143 260.0 86 301. 394 45 70 SALMON RIVER SALMON, ID (1) APR-JUL 870.0 102 1210.0 141 525.0 61 857. 1078 331 89 WHITEBIRD, ID (1) JAN-JUL 7030.0 103 8790.0 129 5270.0 77 6805. 7274 1376 94 APR-JUL 6150.0 105 7910.0 135 4390.0 75 5851. 6441 1376 94 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 260.0 104 340.0 137 185.0 74 249. 238 37 51 APR-JUL 192.0 104 270.0 147 115.0 63 184. 202 37 51 TROY, OR (1) MAR-JUL 1820.0 115 2260.0 143 1380.0 87 1578. 1573 330 56 APR-JUL 1500.0 118 1940.0 152 1070.0 84 1274. 1369 330 56 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 5120.0 110 6670.0 144 3560.0 77 4645. 4316 728 64 SPALDING, ID (1) JAN-JUL 10100.0 104 12500.0 129 7670.0 79 9683. 9175 1304 58 APR-JUL 8450.0 114 10900.0 147 6040.0 81 7435. 7274 1304 58 APR-SEP 8880.0 113 11300.0 144 6480.0 83 7849. 7550 1304 58 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3580.0 101 4510.0 127 2650.0 75 3547. 3507 506 54 APR-JUL 2920.0 110 3850.0 146 1990.0 75 2644. 2676 506 54 APR-SEP 3140.0 112 4070.0 145 2210.0 79 2803. 2786 506 54 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 59.0 111 75.0 142 43.0 81 53. 63 33 68 UMATILLA RIVER GIBBON NR, OR APR-JUL 84.0 115 114.0 156 53.0 73 73. 86 46 70 PENDLETON, OR APR-JUL 173.0 116 245.0 164 103.0 69 149. 178 101 66 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 187.0 117 240.0 150 133.0 83 160. 0 APR-JUL 144.0 117 199.0 162 90.0 73 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 685.0 115 945.0 158 425.0 71 597. 745 167 65 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1310.0 114 1750.0 152 875.0 76 1153. 1235 223 53 APR-SEP 985.0 114 1420.0 164 545.0 63 865. 1038 223 53 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 530.0 100 580.0 110 475.0 90 528. 497 400 98 Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 200.0 109 275.0 149 123.0 67 184. 316 31 36 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 39.0 108 54.0 150 23.0 64 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Mar-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6800.0 107 8250.0 130 5350.0 84 6365. 5621 3479 87 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3250.0 101 4210.0 131 2300.0 71 3217. 3453 1697 75 APR-JUL 2000.0 118 2960.0 175 1040.0 62 1689. 1642 1697 75 APR-SEP 2280.0 119 3240.0 169 1320.0 69 1922. 1817 1697 75 CASTLE ROCK, WA APR-SEP 3000.0 114 4360.0 165 1650.0 63 2639. 2380 2960 84 JAN-JUL 4770.0 101 6120.0 130 3420.0 73 4709. 5136 2960 84 LEWIS RIVER ARIEL, WA JAN-JUL 2290.0 97 2660.0 113 1910.0 81 2351. 2514 1448 74 MCKENZIE RIVER VIDA NR, OR APR-SEP 1310.0 109 1600.0 133 1020.0 85 1201. 1142 1401 94 S. SANTIAM RIVER WATERLOO, OR APR-SEP 690.0 118 960.0 164 425.0 72 587. 540 1237 91 N. SANTIAM RIVER MEHAMA, OR APR-SEP 965.0 116 1240.0 149 700.0 84 834. 754 1306 93 WILLAMETTE RIVER SALEM, OR APR-SEP 5440.0 113 7100.0 148 3770.0 78 4804. 4373 9670 94 CLACKAMAS RIVER ESTACADA, OR APR-SEP 935.0 125 1140.0 152 735.0 98 748. 678 932 86 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 161.0 107 199.0 132 124.0 82 151. 156 105 93 JAN-JUL 188.0 104 225.0 124 151.0 83 181. 195 105 93 ROGUE RIVER RAYGOLD, OR APR-SEP 965.0 109 1190.0 134 740.0 83 889. 895 923 86 JAN-JUL 1630.0 103 1860.0 117 1400.0 88 1584. 1970 923 86 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 77.0 87 112.0 126 42.0 47 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 150.0 116 230.0 178 70.0 54 129. 196 APR-SEP 115.0 116 195.0 197 36.0 36 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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