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Water Supply Forecasts Northwest River Forecast Center Thursday January 17, 2008 at 18:55 GMT Observed precipitation through the 14th Future precip 80% of normal for the rest of JAN and normal for the remainder of the period No snow included Estimated runoff applied to forecasts UPPER COLUMBIA BASINS Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 10000.0 104 11800.0 123 8330.0 87 9619. 9985 FEB-SEP 13500.0 104 15300.0 118 11800.0 91 12960. 12300 APR-SEP 13100.0 105 14800.0 118 11300.0 90 12500. 11850 REVELSTOKE, BC JAN-JUL 14600.0 105 16000.0 115 13100.0 94 13880. 14190 ARROW LAKES INFLOW JAN-JUL 21700.0 104 24400.0 116 19000.0 91 20960. 20790 FEB-SEP 27300.0 103 30000.0 113 24600.0 93 26460. 24050 APR-SEP 25900.0 103 28600.0 114 23200.0 92 25110. 22920 BIRCHBANK, BC (1) JAN-JUL 39800.0 102 47100.0 121 32600.0 84 38930. 41180 APR-SEP 44500.0 102 51700.0 119 37200.0 86 43500. 42860 GRAND COULEE, WA (1) JAN-JUL 61600.0 98 74000.0 118 49100.0 78 62900. 66890 APR-SEP 62600.0 98 75100.0 117 50200.0 78 63990. 63870 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 68300.0 99 82600.0 120 54000.0 78 68910. 71930 APR-SEP 68900.0 99 83200.0 120 54600.0 79 69540. 68910 THE DALLES NR, OR (1) JAN-JUL 102000.0 95 124000.0 116 79100.0 74 107300. 114700 APR-AUG 88200.0 95 111000.0 119 65700.0 71 93090. 97540 APR-SEP 93500.0 95 116000.0 118 70900.0 72 98650. 101700 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5890.0 93 7420.0 118 4360.0 69 6306. 6909 APR-AUG 5840.0 93 7370.0 118 4310.0 69 6248. 6628 APR-SEP 6200.0 93 7730.0 116 4670.0 70 6638. 6922 LEONIA, ID (1) APR-JUL 6600.0 94 8490.0 121 4700.0 67 7041. 7768 APR-SEP 7610.0 94 9500.0 117 5710.0 70 8125. 8545 BONNERS FERRY, ID APR-JUL 7150.0 94 8810.0 116 5530.0 73 7619. 8380 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 16000.0 100 19100.0 119 12900.0 81 16010. 17210 APR-SEP 16400.0 100 19700.0 120 13200.0 80 16450. 16790 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1910.0 106 2330.0 129 1490.0 83 1800. 2033 FEB-SEP 2440.0 106 2860.0 124 2020.0 88 2305. 2361 APR-SEP 2360.0 106 2780.0 125 1940.0 87 2227. 2291 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 570.0 81 960.0 136 179.0 25 704. 504 MISSOULA ABV, MT APR-SEP 1320.0 83 1860.0 117 780.0 49 1595. 1344 MISSOULA BLO, MT APR-SEP 2500.0 84 3320.0 112 1680.0 57 2962. 2770 ST. REGIS, MT (1) APR-SEP 3330.0 85 4980.0 127 1680.0 43 3907. 3648 PLAINS NR, MT (1) APR-SEP 9430.0 85 12700.0 115 6130.0 55 11060. 10840 WHITEHORSE RAPIDS, ID (1) APR-SEP 10800.0 87 14600.0 117 7060.0 57 12460. 12060 BLACKFOOT RIVER BONNER NR, MT APR-SEP 755.0 85 1120.0 126 390.0 44 892. 840 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1180.0 87 1540.0 113 825.0 60 1364. 1319 Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1580.0 88 1960.0 109 1200.0 67 1801. 1780 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1500.0 86 1850.0 106 1150.0 66 1740. 1737 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 1970.0 89 2570.0 116 1370.0 62 2224. 2357 APR-SEP 1880.0 89 2480.0 117 1280.0 60 2124. 2175 UPPER/MIDDLE COLUMBIA BASINS Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5070.0 87 6480.0 111 3650.0 63 5825. 6002 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 5850.0 87 7680.0 114 4020.0 60 6713. 7002 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 775.0 95 1070.0 131 480.0 59 814. 997 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 12300.0 88 16400.0 118 8080.0 58 13910. 14260 APR-JUL 11200.0 88 15400.0 121 7040.0 55 12740. 13520 BOX CANYON BLO, WA (1) APR-SEP 12500.0 89 16100.0 114 8910.0 63 14090. 14500 KETTLE RIVER LAURIER NR, WA APR-SEP 1880.0 95 2350.0 119 1400.0 71 1972. 2366 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 755.0 97 1000.0 129 500.0 64 778. 871 APR-JUL 715.0 97 965.0 131 465.0 63 739. 841 COEUR D'ALENE LAKE IN, ID APR-JUL 2410.0 94 3180.0 125 1640.0 64 2552. 2456 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2650.0 97 2800.0 102 2490.0 91 2744. 2705 ST JOE RIVER CALDER, ID APR-SEP 1110.0 92 1410.0 117 820.0 68 1205. 1263 APR-JUL 1050.0 92 1340.0 118 750.0 66 1136. 1203 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1640.0 93 2440.0 138 835.0 47 1766. 1470 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1280.0 95 1860.0 138 690.0 51 1350. 1079 APR-SEP 1370.0 94 1950.0 134 780.0 54 1450. 1122 METHOW RIVER PATEROS NR, WA (1) APR-SEP 905.0 92 1310.0 133 495.0 50 985. 1144 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1140.0 96 1370.0 116 915.0 77 1185. 1345 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1640.0 100 2210.0 135 1060.0 65 1635. 1669 YAKIMA AND MAINSTEM SNAKE BASINS Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 143.0 108 177.0 133 108.0 81 133. 137 CLE ELUM, WA APR-SEP 945.0 105 1120.0 124 770.0 85 903. 906 PARKER NR, WA APR-SEP 1990.0 104 2400.0 125 1570.0 82 1918. 2346 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 128.0 107 157.0 131 100.0 83 120. 122 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 475.0 106 565.0 126 385.0 86 448. 475 NACHES RIVER NACHES NR, WA APR-SEP 810.0 97 980.0 117 645.0 77 837. 1086 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 132.0 99 166.0 124 99.0 74 134. 154 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 230.0 95 280.0 116 174.0 72 242. 244 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 45.0 98 64.0 139 26.0 57 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 770.0 94 960.0 118 580.0 71 815. 812 APR-SEP 855.0 95 1040.0 115 665.0 74 904. 861 PALISADES RES INFLOW, ID (1) APR-JUL 3130.0 94 4000.0 120 2260.0 68 3331. 3267 APR-SEP 3640.0 94 4510.0 116 2770.0 71 3875. 3672 HEISE NR, ID APR-JUL 3320.0 93 4290.0 120 2340.0 66 3561. 3618 APR-SEP 3880.0 93 4850.0 117 2910.0 70 4159. 4188 SHELLEY NR, ID (1) APR-JUL 4330.0 98 5320.0 120 3340.0 75 4428. 4634 APR-SEP 5210.0 98 6200.0 116 4220.0 79 5324. 5339 BLACKFOOT NR, ID (1) APR-JUL 4360.0 95 5370.0 117 3350.0 73 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2800.0 86 4200.0 130 1410.0 43 3242. 2929 MILNER, ID APR-JUL 178.0 14 695.0 57 130.0 11 1228. 996 KING HILL, ID (1) APR-JUL 1800.0 59 2980.0 98 615.0 20 3045. 3030 MURPHY NR, ID (1) APR-JUL 1890.0 61 3130.0 101 645.0 21 3092. 3104 WEISER, ID (1) JAN-JUL 6860.0 70 9710.0 99 4020.0 41 9793. 12140 APR-JUL 4040.0 70 6890.0 120 1200.0 21 5765. 8160 APR-SEP 5460.0 76 8300.0 115 2610.0 36 7192. 9471 BROWNLEE RES INFLOW APR-JUL 4570.0 72 7330.0 116 1810.0 29 6313. 8975 APR-SEP 5990.0 77 8750.0 112 3230.0 41 7801. 10350 HELLS CANYON, ID (1) APR-JUL 4680.0 72 7730.0 119 1630.0 25 6493. 9324 APR-SEP 6120.0 77 9170.0 115 3070.0 38 7977. 10740 LOWER GRANITE RES IN, WA (1) JAN-JUL 27500.0 92 36800.0 123 18200.0 61 30020. 32200 FEB-SEP 27800.0 92 37200.0 122 18500.0 61 30370. 31790 APR-JUL 19800.0 92 29100.0 135 10500.0 49 21550. 24440 APR-SEP 22100.0 92 31500.0 130 12800.0 53 24140. 26590 UPPER SNAKE BASINS Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 345.0 88 455.0 115 230.0 58 394. 401 SALT RIVER ETNA NR, WY APR-JUL 290.0 85 435.0 127 142.0 42 342. 363 HENRYS FORK ASHTON NR, ID APR-JUL 550.0 96 690.0 121 415.0 73 571. 659 ST. ANTHONY, ID APR-JUL 705.0 96 960.0 131 445.0 61 734. 819 REXBURG NR, ID APR-JUL 1470.0 94 1880.0 121 1060.0 68 1559. 1016 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 370.0 96 450.0 117 290.0 75 386. 370 TETON RIVER ST. ANTHONY NR, ID APR-JUL 385.0 96 530.0 132 235.0 58 403. 464 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 117.0 82 196.0 138 37.0 26 142. 229 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 71.0 83 114.0 133 28.0 33 86. 94 PORTNEUF RIVER TOPAZ, ID APR-SEP 77.0 81 104.0 109 49.0 52 95. 120 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 23.0 79 43.0 148 3.6 12 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 225.0 88 355.0 139 96.0 38 256. 431 MAGIC RESERVOIR INFLOW, ID APR-JUL 230.0 79 435.0 149 18.8 6 291. 591 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 72.0 83 120.0 138 25.0 29 87. 163 MIDDLE SNAKE BASINS Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 168.0 81 285.0 137 51.0 25 208. 276 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 465.0 76 915.0 149 11.9 2 613. 1050 OWYHEE RES OUTFLOW APR-JUL 85.0 39 535.0 247 8.1 4 217. 594 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 580.0 91 745.0 117 420.0 66 636. 828 BOISE NR, ID (1) APR-JUL 1290.0 91 1780.0 126 795.0 56 1414. 2060 PARMA NR, ID APR-JUL 205.0 35 645.0 109 71.0 12 593. 1102 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 495.0 91 615.0 113 380.0 70 542. 816 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 95.0 86 161.0 146 29.0 26 110. 239 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 78.0 96 113.0 140 43.0 53 81. 155 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1640.0 101 2200.0 136 1080.0 67 1617. 2214 EMMETT NR, ID APR-JUL 1310.0 105 1920.0 154 710.0 57 1246. 1977 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 132.0 99 171.0 128 93.0 69 134. 180 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 510.0 103 670.0 135 345.0 70 495. 684 WEISER RIVER WEISER NR, ID (1) APR-JUL 390.0 100 625.0 160 156.0 40 391. 717 BURNT RIVER HEREFORD NR, OR MAR-JUL 51.0 100 75.0 147 27.0 53 51. 81 LOWER SNAKE AND CENTRAL OREGON BASINS Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 69.0 99 91.0 130 48.0 69 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 295.0 98 390.0 130 205.0 68 301. 394 SALMON RIVER SALMON, ID (1) APR-JUL 815.0 95 1190.0 139 440.0 51 857. 1078 WHITEBIRD, ID (1) JAN-JUL 6780.0 100 8840.0 130 4720.0 69 6805. 7274 APR-JUL 5830.0 100 7890.0 135 3770.0 64 5851. 6441 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 240.0 96 320.0 129 158.0 63 249. 238 APR-JUL 177.0 96 255.0 139 97.0 53 184. 202 TROY, OR (1) MAR-JUL 1530.0 97 2100.0 133 960.0 61 1578. 1573 APR-JUL 1230.0 97 1800.0 141 665.0 52 1274. 1369 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4700.0 101 6460.0 139 2940.0 63 4645. 4316 SPALDING, ID (1) JAN-JUL 9780.0 101 12800.0 132 6800.0 70 9683. 9175 APR-JUL 7510.0 101 10500.0 141 4530.0 61 7435. 7274 APR-SEP 7930.0 101 10900.0 139 4950.0 63 7849. 7550 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3540.0 100 4680.0 132 2400.0 68 3547. 3507 APR-JUL 2640.0 100 3780.0 143 1510.0 57 2644. 2676 APR-SEP 2800.0 100 3940.0 141 1660.0 59 2803. 2786 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 58.0 109 76.0 143 40.0 75 53. 63 UMATILLA RIVER GIBBON NR, OR APR-JUL 82.0 112 113.0 155 51.0 70 73. 86 PENDLETON, OR APR-JUL 172.0 115 245.0 164 101.0 68 149. 178 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 170.0 106 225.0 141 112.0 70 160. 0 APR-JUL 131.0 107 188.0 153 73.0 59 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 625.0 105 895.0 150 355.0 59 597. 745 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1250.0 108 1730.0 150 760.0 66 1153. 1235 APR-SEP 935.0 108 1420.0 164 450.0 52 865. 1038 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 515.0 98 585.0 111 445.0 84 528. 497 Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 135.0 73 230.0 125 42.0 23 184. 316 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 27.0 75 43.0 119 11.0 31 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Jan-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6420.0 101 8050.0 126 4800.0 75 6365. 5621 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3390.0 105 4490.0 140 2300.0 71 3217. 3453 APR-JUL 1780.0 105 2880.0 171 685.0 41 1689. 1642 APR-SEP 2030.0 106 3120.0 162 930.0 48 1922. 1817 CASTLE ROCK, WA APR-SEP 2710.0 103 4260.0 161 1160.0 44 2639. 2380 JAN-JUL 4840.0 103 6380.0 135 3290.0 70 4709. 5136 LEWIS RIVER ARIEL, WA JAN-JUL 2510.0 107 2900.0 123 2110.0 90 2351. 2514 MCKENZIE RIVER VIDA NR, OR APR-SEP 1290.0 107 1580.0 132 1000.0 83 1201. 1142 S. SANTIAM RIVER WATERLOO, OR APR-SEP 610.0 104 880.0 150 340.0 58 587. 540 N. SANTIAM RIVER MEHAMA, OR APR-SEP 870.0 104 1150.0 138 590.0 71 834. 754 WILLAMETTE RIVER SALEM, OR APR-SEP 4930.0 103 6610.0 138 3250.0 68 4804. 4373 CLACKAMAS RIVER ESTACADA, OR APR-SEP 785.0 105 995.0 133 580.0 78 748. 678 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 156.0 103 200.0 132 111.0 74 151. 156 JAN-JUL 188.0 104 235.0 130 143.0 79 181. 195 ROGUE RIVER RAYGOLD, OR APR-SEP 920.0 103 1220.0 137 620.0 70 889. 895 JAN-JUL 1640.0 104 1940.0 122 1340.0 85 1584. 1970 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 73.0 82 113.0 127 33.0 37 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 102.0 79 181.0 140 22.0 17 129. 196 APR-SEP 78.0 79 158.0 160 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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