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Water Supply Forecasts Northwest River Forecast Center Thursday February 14, 2008 at 21:50 GMT Observed precipitation through the 11th Future precip assumed to be normal No snow included Observed runoff through January note: current month runoff based on OBSERVED + ESP to the end of FEB UPPER COLUMBIA BASINS Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 10100.0 105 11500.0 120 8700.0 90 9619. 9985 1877 104 FEB-SEP 13600.0 105 15000.0 116 12200.0 94 12960. 12300 1877 104 APR-SEP 13200.0 106 14600.0 117 11700.0 94 12500. 11850 1877 104 REVELSTOKE, BC JAN-JUL 14600.0 105 15800.0 114 13400.0 97 13880. 14190 2754 107 ARROW LAKES INFLOW JAN-JUL 21500.0 103 23900.0 114 19100.0 91 20960. 20790 4030 88 FEB-SEP 27300.0 103 29700.0 112 24900.0 94 26460. 24050 4030 88 APR-SEP 26100.0 104 28500.0 114 23700.0 94 25110. 22920 4030 88 BIRCHBANK, BC (1) JAN-JUL 39500.0 101 45800.0 118 33200.0 85 38930. 41180 7079 91 APR-SEP 44700.0 103 51000.0 117 38400.0 88 43500. 42860 7079 91 GRAND COULEE, WA (1) JAN-JUL 61900.0 98 72200.0 115 51700.0 82 62900. 66890 10760 79 APR-SEP 64700.0 101 74900.0 117 54400.0 85 63990. 63870 10760 79 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 68900.0 100 80700.0 117 57000.0 83 68910. 71930 11330 77 APR-SEP 71600.0 103 83400.0 120 59700.0 86 69540. 68910 11330 77 THE DALLES NR, OR (1) JAN-JUL 104000.0 97 122000.0 114 86700.0 81 107300. 114700 21870 73 APR-AUG 95400.0 102 113000.0 121 77800.0 84 93090. 97540 21870 73 APR-SEP 101000.0 102 119000.0 121 83500.0 85 98650. 101700 21870 73 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 6100.0 97 7500.0 119 4700.0 75 6306. 6909 974 74 APR-AUG 6180.0 99 7580.0 121 4780.0 77 6248. 6628 974 74 APR-SEP 6560.0 99 7960.0 120 5160.0 78 6638. 6922 974 74 LEONIA, ID (1) APR-JUL 7080.0 101 8810.0 125 5360.0 76 7041. 7768 1260 72 APR-SEP 8170.0 101 9900.0 122 6450.0 79 8125. 8545 1260 72 BONNERS FERRY, ID APR-JUL 7770.0 102 9420.0 124 6150.0 81 7619. 8380 1348 72 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 15900.0 99 18700.0 117 13100.0 82 16010. 17210 2395 76 APR-SEP 16700.0 102 19800.0 120 13700.0 83 16450. 16790 2395 76 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1870.0 104 2260.0 126 1470.0 82 1800. 2033 309 92 FEB-SEP 2400.0 104 2790.0 121 2000.0 87 2305. 2361 309 92 APR-SEP 2330.0 105 2720.0 122 1930.0 87 2227. 2291 309 92 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 635.0 90 1020.0 145 255.0 36 704. 504 208 76 MISSOULA ABV, MT APR-SEP 1430.0 90 1960.0 123 910.0 57 1595. 1344 355 77 MISSOULA BLO, MT APR-SEP 2840.0 96 3630.0 123 2050.0 69 2962. 2770 601 78 ST. REGIS, MT (1) APR-SEP 3850.0 99 5250.0 134 2450.0 63 3907. 3648 808 78 PLAINS NR, MT (1) APR-SEP 10600.0 96 13300.0 120 7860.0 71 11060. 10840 1715 70 WHITEHORSE RAPIDS, ID (1) APR-SEP 11800.0 95 15000.0 120 8690.0 70 12460. 12060 1842 64 BLACKFOOT RIVER BONNER NR, MT APR-SEP 800.0 90 1130.0 127 475.0 53 892. 840 148 80 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1400.0 103 1710.0 125 1090.0 80 1364. 1319 254 82 Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1750.0 97 2090.0 116 1410.0 78 1801. 1780 203 68 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1680.0 97 2000.0 115 1360.0 78 1740. 1737 200 70 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2090.0 94 2610.0 117 1570.0 71 2224. 2357 247 68 APR-SEP 2040.0 96 2560.0 121 1520.0 72 2124. 2175 247 68 UPPER/MIDDLE COLUMBIA BASINS Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5570.0 96 6850.0 118 4300.0 74 5825. 6002 662 67 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6440.0 96 8030.0 120 4860.0 72 6713. 7002 912 74 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 880.0 108 1110.0 136 650.0 80 814. 997 183 72 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13400.0 96 16800.0 121 10100.0 73 13910. 14260 2585 74 APR-JUL 12300.0 97 15600.0 122 8900.0 70 12740. 13520 2585 74 BOX CANYON BLO, WA (1) APR-SEP 13700.0 97 17000.0 121 10700.0 76 14090. 14500 2619 72 KETTLE RIVER LAURIER NR, WA APR-SEP 1840.0 93 2250.0 114 1440.0 73 1972. 2366 111 59 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 810.0 104 1040.0 134 580.0 75 778. 871 162 41 APR-JUL 770.0 104 1000.0 135 540.0 73 739. 841 162 41 COEUR D'ALENE LAKE IN, ID APR-JUL 2670.0 105 3420.0 134 1920.0 75 2552. 2456 658 50 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2980.0 109 3100.0 113 2870.0 105 2744. 2705 668 49 ST JOE RIVER CALDER, ID APR-SEP 1290.0 107 1570.0 130 1020.0 85 1205. 1263 179 50 APR-JUL 1210.0 107 1490.0 131 930.0 82 1136. 1203 179 50 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1520.0 86 2120.0 120 910.0 52 1766. 1470 321 84 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1210.0 90 1610.0 119 810.0 60 1350. 1079 202 92 APR-SEP 1300.0 90 1700.0 117 900.0 62 1450. 1122 202 92 METHOW RIVER PATEROS NR, WA (1) APR-SEP 985.0 100 1310.0 133 655.0 66 985. 1144 126 90 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1240.0 105 1450.0 122 1030.0 87 1185. 1345 228 89 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1930.0 118 2480.0 152 1380.0 84 1635. 1669 337 67 YAKIMA AND MAINSTEM SNAKE BASINS Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 156.0 117 187.0 141 125.0 94 133. 137 64 63 CLE ELUM, WA APR-SEP 1040.0 115 1170.0 130 905.0 100 903. 906 306 60 PARKER NR, WA APR-SEP 2230.0 116 2570.0 134 1880.0 98 1918. 2346 753 65 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 141.0 117 167.0 139 115.0 96 120. 122 58 70 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 515.0 115 580.0 129 450.0 100 448. 475 135 70 NACHES RIVER NACHES NR, WA APR-SEP 935.0 112 1090.0 130 775.0 93 837. 1086 269 74 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 151.0 113 181.0 135 121.0 90 134. 154 52 83 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 260.0 107 305.0 126 215.0 89 242. 244 90 76 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 51.0 111 69.0 150 33.0 72 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 795.0 98 970.0 119 615.0 75 815. 812 168 96 APR-SEP 880.0 97 1060.0 117 705.0 78 904. 861 168 96 PALISADES RES INFLOW, ID (1) APR-JUL 3250.0 98 3960.0 119 2530.0 76 3331. 3267 755 82 APR-SEP 3790.0 98 4500.0 116 3070.0 79 3875. 3672 755 82 HEISE NR, ID APR-JUL 3440.0 97 4240.0 119 2640.0 74 3561. 3618 851 81 APR-SEP 4020.0 97 4820.0 116 3220.0 77 4159. 4188 851 81 SHELLEY NR, ID (1) APR-JUL 4560.0 103 5420.0 122 3700.0 84 4428. 4634 1269 80 APR-SEP 5480.0 103 6340.0 119 4620.0 87 5324. 5339 1269 80 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 3040.0 94 4230.0 130 1850.0 57 3242. 2929 1612 75 MILNER, ID APR-JUL 405.0 33 1360.0 111 163.0 13 1228. 996 140 11 KING HILL, ID (1) APR-JUL 2090.0 69 3140.0 103 1040.0 34 3045. 3030 2157 61 MURPHY NR, ID (1) APR-JUL 2190.0 71 3310.0 107 1060.0 34 3092. 3104 2161 59 WEISER, ID (1) JAN-JUL 7660.0 78 10100.0 103 5260.0 54 9793. 12140 3122 59 APR-JUL 5050.0 88 7450.0 129 2640.0 46 5765. 8160 3122 59 APR-SEP 6490.0 90 8900.0 124 4090.0 57 7192. 9471 3122 59 BROWNLEE RES INFLOW APR-JUL 5670.0 90 7970.0 126 3370.0 53 6313. 8975 3385 60 APR-SEP 7110.0 91 9410.0 121 4810.0 62 7801. 10350 3385 60 HELLS CANYON, ID (1) APR-JUL 5840.0 90 8280.0 128 3390.0 52 6493. 9324 3555 63 APR-SEP 7310.0 92 9750.0 122 4860.0 61 7977. 10740 3555 63 LOWER GRANITE RES IN, WA (1) JAN-JUL 29400.0 98 36600.0 122 22100.0 74 30020. 32200 6541 65 FEB-SEP 30700.0 101 38000.0 125 23400.0 77 30370. 31790 6541 65 APR-JUL 23100.0 107 30400.0 141 15900.0 74 21550. 24440 6541 65 APR-SEP 25700.0 106 32900.0 136 18400.0 76 24140. 26590 6541 65 UPPER SNAKE BASINS Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 370.0 94 465.0 118 270.0 69 394. 401 57 74 SALT RIVER ETNA NR, WY APR-JUL 310.0 91 450.0 132 173.0 51 342. 363 118 75 HENRYS FORK ASHTON NR, ID APR-JUL 565.0 99 695.0 122 440.0 77 571. 659 312 73 ST. ANTHONY, ID APR-JUL 740.0 101 995.0 136 495.0 67 734. 819 377 76 REXBURG NR, ID APR-JUL 1530.0 98 1930.0 124 1140.0 73 1559. 1016 531 65 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 385.0 100 465.0 120 305.0 79 386. 370 88 61 TETON RIVER ST. ANTHONY NR, ID APR-JUL 410.0 102 550.0 136 265.0 66 403. 464 112 79 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 147.0 104 225.0 158 70.0 49 142. 229 41 66 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 78.0 91 114.0 133 42.0 49 86. 94 8 47 PORTNEUF RIVER TOPAZ, ID APR-SEP 83.0 87 108.0 114 57.0 60 95. 120 30 63 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 24.0 83 41.0 141 7.9 27 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 275.0 107 380.0 148 165.0 64 256. 431 41 73 MAGIC RESERVOIR INFLOW, ID APR-JUL 305.0 105 470.0 162 139.0 48 291. 591 19 45 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 94.0 108 140.0 161 48.0 55 87. 163 14 70 MIDDLE SNAKE BASINS Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 180.0 87 290.0 139 70.0 34 208. 276 23 52 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 535.0 87 735.0 120 335.0 55 613. 1050 105 49 OWYHEE RES OUTFLOW APR-JUL 35.0 16 195.0 90 16.3 8 217. 594 13 21 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 670.0 105 805.0 127 535.0 84 636. 828 133 90 BOISE NR, ID (1) APR-JUL 1460.0 103 1880.0 133 1050.0 74 1414. 2060 266 74 PARMA NR, ID APR-JUL 360.0 61 735.0 124 105.0 18 593. 1102 225 55 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 565.0 104 675.0 125 455.0 84 542. 816 86 83 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 125.0 114 177.0 161 72.0 65 110. 239 19 45 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 93.0 115 118.0 146 68.0 84 81. 155 20 71 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1890.0 117 2380.0 147 1410.0 87 1617. 2214 414 88 EMMETT NR, ID APR-JUL 1720.0 138 2250.0 181 1200.0 96 1246. 1977 347 66 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 160.0 119 192.0 143 128.0 96 134. 180 27 102 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 590.0 119 725.0 146 455.0 92 495. 684 158 99 WEISER RIVER WEISER NR, ID (1) APR-JUL 475.0 121 685.0 175 260.0 66 391. 717 150 67 BURNT RIVER HEREFORD NR, OR MAR-JUL 59.0 116 79.0 155 38.0 75 51. 81 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 78.0 111 99.0 141 58.0 83 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 350.0 116 435.0 145 265.0 88 301. 394 43 67 SALMON RIVER SALMON, ID (1) APR-JUL 910.0 106 1250.0 146 570.0 67 857. 1078 311 83 WHITEBIRD, ID (1) JAN-JUL 7160.0 105 8920.0 131 5400.0 79 6805. 7274 1327 90 APR-JUL 6300.0 108 8060.0 138 4540.0 78 5851. 6441 1327 90 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 280.0 112 360.0 145 205.0 82 249. 238 32 44 APR-JUL 205.0 111 285.0 155 130.0 71 184. 202 32 44 TROY, OR (1) MAR-JUL 1910.0 121 2350.0 149 1470.0 93 1578. 1573 306 52 APR-JUL 1580.0 124 2020.0 159 1150.0 90 1274. 1369 306 52 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 5120.0 110 6680.0 144 3570.0 77 4645. 4316 712 63 SPALDING, ID (1) JAN-JUL 9880.0 102 12300.0 127 7470.0 77 9683. 9175 1278 56 APR-JUL 8300.0 112 10700.0 144 5900.0 79 7435. 7274 1278 56 APR-SEP 8730.0 111 11100.0 141 6320.0 81 7849. 7550 1278 56 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3500.0 99 4430.0 125 2580.0 73 3547. 3507 498 53 APR-JUL 2860.0 108 3790.0 143 1940.0 73 2644. 2676 498 53 APR-SEP 3060.0 109 3990.0 142 2140.0 76 2803. 2786 498 53 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 60.0 113 77.0 145 44.0 83 53. 63 31 64 UMATILLA RIVER GIBBON NR, OR APR-JUL 87.0 119 117.0 160 57.0 78 73. 86 42 64 PENDLETON, OR APR-JUL 180.0 121 250.0 168 109.0 73 149. 178 88 57 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 194.0 121 250.0 156 139.0 87 160. 0 APR-JUL 150.0 122 205.0 167 95.0 77 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 710.0 119 970.0 162 445.0 75 597. 745 128 50 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1370.0 119 1810.0 157 930.0 81 1153. 1235 214 51 APR-SEP 1030.0 119 1470.0 170 585.0 68 865. 1038 214 51 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 560.0 106 610.0 116 505.0 96 528. 497 427 105 Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 210.0 114 285.0 155 133.0 72 184. 316 26 30 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 43.0 119 59.0 164 28.0 78 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Feb-08 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6870.0 108 8320.0 131 5420.0 85 6365. 5621 3585 90 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3490.0 108 4450.0 138 2530.0 79 3217. 3453 1714 76 APR-JUL 2180.0 129 3140.0 186 1220.0 72 1689. 1642 1714 76 APR-SEP 2480.0 129 3440.0 179 1520.0 79 1922. 1817 1714 76 CASTLE ROCK, WA APR-SEP 3210.0 122 4560.0 173 1860.0 70 2639. 2380 3063 87 JAN-JUL 5110.0 109 6460.0 137 3750.0 80 4709. 5136 3063 87 LEWIS RIVER ARIEL, WA JAN-JUL 2490.0 106 2860.0 122 2110.0 90 2351. 2514 1559 80 MCKENZIE RIVER VIDA NR, OR APR-SEP 1330.0 111 1620.0 135 1040.0 87 1201. 1142 1423 95 S. SANTIAM RIVER WATERLOO, OR APR-SEP 705.0 120 975.0 166 435.0 74 587. 540 1298 95 N. SANTIAM RIVER MEHAMA, OR APR-SEP 975.0 117 1240.0 149 705.0 85 834. 754 1335 95 WILLAMETTE RIVER SALEM, OR APR-SEP 5540.0 115 7200.0 150 3870.0 81 4804. 4373 10300 100 CLACKAMAS RIVER ESTACADA, OR APR-SEP 940.0 126 1140.0 152 735.0 98 748. 678 952 87 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 164.0 109 200.0 132 127.0 84 151. 156 108 96 JAN-JUL 192.0 106 230.0 127 155.0 86 181. 195 108 96 ROGUE RIVER RAYGOLD, OR APR-SEP 965.0 109 1200.0 135 740.0 83 889. 895 931 87 JAN-JUL 1630.0 103 1860.0 117 1400.0 88 1584. 1970 931 87 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 83.0 93 118.0 133 47.0 53 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 141.0 109 220.0 171 61.0 47 129. 196 APR-SEP 108.0 109 187.0 189 28.0 28 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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