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Water Supply Forecasts Northwest River Forecast Center Thursday February 07, 2008 at 21:49 GMT Full month of observed precipitation Future precip is from 110% of normal for the first half of FEB in the middle and upper Columbia basins and normal for the rest of period Future precip is 100% of normal for the entire period in the Snake basin Snow included in this run Full complement runoff applied through JAN UPPER COLUMBIA BASINS Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 9970.0 104 11700.0 122 8260.0 86 9619. 9985 1679 106 FEB-SEP 13400.0 103 15100.0 117 11700.0 90 12960. 12300 1679 106 APR-SEP 12900.0 103 14600.0 117 11200.0 90 12500. 11850 1679 106 REVELSTOKE, BC JAN-JUL 14400.0 104 15900.0 115 13000.0 94 13880. 14190 2486 109 ARROW LAKES INFLOW JAN-JUL 21200.0 101 23900.0 114 18500.0 88 20960. 20790 3531 90 FEB-SEP 26900.0 102 29600.0 112 24200.0 91 26460. 24050 3531 90 APR-SEP 25600.0 102 28300.0 113 22900.0 91 25110. 22920 3531 90 BIRCHBANK, BC (1) JAN-JUL 38700.0 99 45900.0 118 31400.0 81 38930. 41180 6223 95 APR-SEP 43400.0 100 50600.0 116 36100.0 83 43500. 42860 6223 95 GRAND COULEE, WA (1) JAN-JUL 61100.0 97 73500.0 117 48600.0 77 62900. 66890 9180 84 APR-SEP 62700.0 98 75200.0 118 50300.0 79 63990. 63870 9180 84 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 67700.0 98 82000.0 119 53400.0 77 68910. 71930 9615 82 APR-SEP 69200.0 100 83500.0 120 54800.0 79 69540. 68910 9615 82 THE DALLES NR, OR (1) JAN-JUL 103000.0 96 126000.0 117 80900.0 75 107300. 114700 18050 78 APR-AUG 91800.0 99 114000.0 122 69200.0 74 93090. 97540 18050 78 APR-SEP 97300.0 99 120000.0 122 74700.0 76 98650. 101700 18050 78 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5960.0 95 7490.0 119 4430.0 70 6306. 6909 853 76 APR-AUG 5960.0 95 7490.0 120 4430.0 71 6248. 6628 853 76 APR-SEP 6330.0 95 7860.0 118 4800.0 72 6638. 6922 853 76 LEONIA, ID (1) APR-JUL 6820.0 97 8720.0 124 4920.0 70 7041. 7768 1096 76 APR-SEP 7870.0 97 9760.0 120 5970.0 73 8125. 8545 1096 76 BONNERS FERRY, ID APR-JUL 7440.0 98 9210.0 121 5750.0 75 7619. 8380 1173 77 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 15500.0 97 18600.0 116 12500.0 78 16010. 17210 2102 80 APR-SEP 16000.0 97 19400.0 118 12900.0 78 16450. 16790 2102 80 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1830.0 102 2250.0 125 1410.0 78 1800. 2033 283 94 FEB-SEP 2350.0 102 2770.0 120 1930.0 84 2305. 2361 283 94 APR-SEP 2270.0 102 2690.0 121 1850.0 83 2227. 2291 283 94 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 610.0 87 1000.0 142 220.0 31 704. 504 180 81 MISSOULA ABV, MT APR-SEP 1390.0 87 1930.0 121 855.0 54 1595. 1344 300 81 MISSOULA BLO, MT APR-SEP 2740.0 93 3560.0 120 1910.0 64 2962. 2770 510 82 ST. REGIS, MT (1) APR-SEP 3680.0 94 5330.0 136 2030.0 52 3907. 3648 683 83 PLAINS NR, MT (1) APR-SEP 10200.0 92 13500.0 122 6950.0 63 11060. 10840 1450 73 WHITEHORSE RAPIDS, ID (1) APR-SEP 11400.0 91 15200.0 122 7590.0 61 12460. 12060 1499 65 BLACKFOOT RIVER BONNER NR, MT APR-SEP 780.0 87 1150.0 129 415.0 47 892. 840 121 81 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1340.0 98 1700.0 125 985.0 72 1364. 1319 218 87 Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1710.0 95 2090.0 116 1330.0 74 1801. 1780 180 71 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1630.0 94 1990.0 114 1280.0 74 1740. 1737 178 73 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2050.0 92 2650.0 119 1450.0 65 2224. 2357 215 72 APR-SEP 1970.0 93 2570.0 121 1380.0 65 2124. 2175 215 72 UPPER/MIDDLE COLUMBIA BASINS Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5410.0 93 6830.0 117 3990.0 68 5825. 6002 579 70 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6230.0 93 8060.0 120 4400.0 66 6713. 7002 789 79 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 835.0 103 1130.0 139 545.0 67 814. 997 157 80 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 12900.0 93 17100.0 123 8750.0 63 13910. 14260 2117 77 APR-JUL 11800.0 93 16000.0 126 7610.0 60 12740. 13520 2117 77 BOX CANYON BLO, WA (1) APR-SEP 13200.0 94 17100.0 121 9410.0 67 14090. 14500 2145 75 KETTLE RIVER LAURIER NR, WA APR-SEP 1850.0 94 2320.0 118 1370.0 69 1972. 2366 95 61 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 790.0 102 1040.0 134 540.0 69 778. 871 131 49 APR-JUL 750.0 101 1000.0 135 500.0 68 739. 841 131 49 COEUR D'ALENE LAKE IN, ID APR-JUL 2600.0 102 3370.0 132 1830.0 72 2552. 2456 508 58 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2860.0 104 3020.0 110 2700.0 98 2744. 2705 535 58 ST JOE RIVER CALDER, ID APR-SEP 1260.0 105 1560.0 129 960.0 80 1205. 1263 146 57 APR-JUL 1180.0 104 1480.0 130 885.0 78 1136. 1203 146 57 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1460.0 83 2270.0 129 655.0 37 1766. 1470 271 89 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1160.0 86 1750.0 130 575.0 43 1350. 1079 175 96 APR-SEP 1250.0 86 1830.0 126 660.0 46 1450. 1122 175 96 METHOW RIVER PATEROS NR, WA (1) APR-SEP 930.0 94 1340.0 136 520.0 53 985. 1144 106 91 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1170.0 99 1400.0 118 935.0 79 1185. 1345 191 92 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1760.0 108 2330.0 143 1180.0 72 1635. 1669 295 74 YAKIMA AND MAINSTEM SNAKE BASINS Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 150.0 113 184.0 138 116.0 87 133. 137 56 68 CLE ELUM, WA APR-SEP 1000.0 111 1180.0 131 825.0 91 903. 906 255 63 PARKER NR, WA APR-SEP 2080.0 108 2500.0 130 1670.0 87 1918. 2346 625 72 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 135.0 113 163.0 136 106.0 88 120. 122 47 70 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 495.0 110 585.0 131 405.0 90 448. 475 115 74 NACHES RIVER NACHES NR, WA APR-SEP 880.0 105 1050.0 125 710.0 85 837. 1086 231 85 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 142.0 106 176.0 131 108.0 81 134. 154 47 94 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 245.0 101 300.0 124 191.0 79 242. 244 75 84 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 49.0 107 68.0 148 30.0 65 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 790.0 97 980.0 120 600.0 74 815. 812 141 98 APR-SEP 875.0 97 1070.0 118 685.0 76 904. 861 141 98 PALISADES RES INFLOW, ID (1) APR-JUL 3210.0 96 4080.0 122 2340.0 70 3331. 3267 651 85 APR-SEP 3740.0 97 4610.0 119 2870.0 74 3875. 3672 651 85 HEISE NR, ID APR-JUL 3400.0 95 4370.0 123 2430.0 68 3561. 3618 737 84 APR-SEP 3970.0 95 4940.0 119 3000.0 72 4159. 4188 737 84 SHELLEY NR, ID (1) APR-JUL 4500.0 102 5490.0 124 3510.0 79 4428. 4634 1119 83 APR-SEP 5410.0 102 6400.0 120 4420.0 83 5324. 5339 1119 83 BLACKFOOT NR, ID (1) APR-JUL 4530.0 98 5540.0 120 3520.0 76 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2980.0 92 4370.0 135 1590.0 49 3242. 2929 1356 78 MILNER, ID APR-JUL 195.0 16 830.0 68 130.0 11 1228. 996 103 10 KING HILL, ID (1) APR-JUL 1880.0 62 3060.0 100 690.0 23 3045. 3030 1782 62 MURPHY NR, ID (1) APR-JUL 1980.0 64 3220.0 104 730.0 24 3092. 3104 1784 60 WEISER, ID (1) JAN-JUL 7590.0 78 10400.0 106 4740.0 48 9793. 12140 2580 63 APR-JUL 4660.0 81 7510.0 130 1810.0 31 5765. 8160 2580 63 APR-SEP 6090.0 85 8940.0 124 3250.0 45 7192. 9471 2580 63 BROWNLEE RES INFLOW APR-JUL 5260.0 83 8020.0 127 2500.0 40 6313. 8975 2722 63 APR-SEP 6690.0 86 9450.0 121 3930.0 50 7801. 10350 2722 63 HELLS CANYON, ID (1) APR-JUL 5420.0 83 8470.0 130 2370.0 37 6493. 9324 2787 64 APR-SEP 6880.0 86 9930.0 124 3830.0 48 7977. 10740 2787 64 LOWER GRANITE RES IN, WA (1) JAN-JUL 29500.0 98 38800.0 129 20100.0 67 30020. 32200 5149 68 FEB-SEP 30800.0 101 40100.0 132 21500.0 71 30370. 31790 5149 68 APR-JUL 22200.0 103 31500.0 146 12800.0 59 21550. 24440 5149 68 APR-SEP 24700.0 102 34000.0 141 15400.0 64 24140. 26590 5149 68 UPPER SNAKE BASINS Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 360.0 91 470.0 119 245.0 62 394. 401 51 78 SALT RIVER ETNA NR, WY APR-JUL 300.0 88 450.0 132 153.0 45 342. 363 101 76 HENRYS FORK ASHTON NR, ID APR-JUL 560.0 98 695.0 122 420.0 74 571. 659 283 81 ST. ANTHONY, ID APR-JUL 730.0 99 990.0 135 470.0 64 734. 819 316 78 REXBURG NR, ID APR-JUL 1510.0 97 1920.0 123 1100.0 71 1559. 1016 456 68 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 380.0 98 465.0 120 300.0 78 386. 370 72 59 TETON RIVER ST. ANTHONY NR, ID APR-JUL 400.0 99 545.0 135 250.0 62 403. 464 99 84 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 146.0 103 225.0 158 66.0 46 142. 229 36 69 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 77.0 90 120.0 140 34.0 40 86. 94 7 52 PORTNEUF RIVER TOPAZ, ID APR-SEP 82.0 86 109.0 115 54.0 57 95. 120 25 66 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 24.0 83 44.0 152 4.7 16 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 270.0 105 400.0 156 140.0 55 256. 431 34 73 MAGIC RESERVOIR INFLOW, ID APR-JUL 300.0 103 510.0 175 91.0 31 291. 591 15 46 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 93.0 107 140.0 161 45.0 52 87. 163 12 75 MIDDLE SNAKE BASINS Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 180.0 87 295.0 142 64.0 31 208. 276 18 56 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 515.0 84 965.0 157 61.0 10 613. 1050 73 57 OWYHEE RES OUTFLOW APR-JUL 135.0 62 585.0 270 10.6 5 217. 594 11 41 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 645.0 101 810.0 127 480.0 75 636. 828 116 102 BOISE NR, ID (1) APR-JUL 1410.0 100 1900.0 134 915.0 65 1414. 2060 223 84 PARMA NR, ID APR-JUL 315.0 53 750.0 126 87.0 15 593. 1102 187 64 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 545.0 101 660.0 122 425.0 78 542. 816 71 87 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 123.0 112 188.0 171 57.0 52 110. 239 15 59 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 91.0 112 126.0 156 56.0 69 81. 155 14 73 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1820.0 113 2390.0 148 1260.0 78 1617. 2214 362 99 EMMETT NR, ID APR-JUL 1510.0 121 2120.0 170 905.0 73 1246. 1977 291 75 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 155.0 116 194.0 145 116.0 87 134. 180 23 106 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 570.0 115 730.0 147 405.0 82 495. 684 141 111 WEISER RIVER WEISER NR, ID (1) APR-JUL 460.0 118 695.0 178 225.0 58 391. 717 97 74 BURNT RIVER HEREFORD NR, OR MAR-JUL 56.0 110 80.0 157 32.0 63 51. 81 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 75.0 107 96.0 137 54.0 77 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 345.0 115 435.0 145 250.0 83 301. 394 35 70 SALMON RIVER SALMON, ID (1) APR-JUL 890.0 104 1260.0 147 515.0 60 857. 1078 269 87 WHITEBIRD, ID (1) JAN-JUL 7130.0 105 9190.0 135 5070.0 75 6805. 7274 1143 96 APR-JUL 6190.0 106 8250.0 141 4130.0 71 5851. 6441 1143 96 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 265.0 106 345.0 139 185.0 74 249. 238 20 46 APR-JUL 196.0 107 275.0 149 116.0 63 184. 202 20 46 TROY, OR (1) MAR-JUL 1800.0 114 2370.0 150 1230.0 78 1578. 1573 234 60 APR-JUL 1470.0 115 2040.0 160 900.0 71 1274. 1369 234 60 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4910.0 106 6680.0 144 3150.0 68 4645. 4316 572 69 SPALDING, ID (1) JAN-JUL 9970.0 103 13000.0 134 6990.0 72 9683. 9175 995 63 APR-JUL 7970.0 107 10900.0 147 4990.0 67 7435. 7274 995 63 APR-SEP 8390.0 107 11400.0 145 5420.0 69 7849. 7550 995 63 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3600.0 101 4740.0 134 2460.0 69 3547. 3507 397 61 APR-JUL 2780.0 105 3920.0 148 1640.0 62 2644. 2676 397 61 APR-SEP 2970.0 106 4110.0 147 1840.0 66 2803. 2786 397 61 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 60.0 113 78.0 147 42.0 79 53. 63 23 62 UMATILLA RIVER GIBBON NR, OR APR-JUL 86.0 118 118.0 162 55.0 75 73. 86 32 72 PENDLETON, OR APR-JUL 178.0 119 250.0 168 107.0 72 149. 178 65 65 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 192.0 120 250.0 156 135.0 84 160. 0 APR-JUL 148.0 120 205.0 167 91.0 74 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 700.0 117 970.0 162 425.0 71 597. 745 108 69 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1360.0 118 1850.0 160 870.0 75 1153. 1235 141 53 APR-SEP 1020.0 118 1510.0 175 535.0 62 865. 1038 141 53 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 540.0 102 610.0 116 470.0 89 528. 497 345 103 Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 200.0 109 295.0 160 108.0 59 184. 316 17 34 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 40.0 111 56.0 156 25.0 69 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Feb-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6760.0 106 8380.0 132 5130.0 81 6365. 5621 3016 92 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3350.0 104 4440.0 138 2250.0 70 3217. 3453 1346 76 APR-JUL 1930.0 114 3030.0 179 835.0 49 1689. 1642 1346 76 APR-SEP 2200.0 114 3300.0 172 1100.0 57 1922. 1817 1346 76 CASTLE ROCK, WA APR-SEP 2920.0 111 4460.0 169 1370.0 52 2639. 2380 2358 86 JAN-JUL 4900.0 104 6450.0 137 3360.0 71 4709. 5136 2358 86 LEWIS RIVER ARIEL, WA JAN-JUL 2380.0 101 2770.0 118 1990.0 85 2351. 2514 1205 79 MCKENZIE RIVER VIDA NR, OR APR-SEP 1310.0 109 1600.0 133 1020.0 85 1201. 1142 1132 98 S. SANTIAM RIVER WATERLOO, OR APR-SEP 700.0 119 970.0 165 430.0 73 587. 540 1001 95 N. SANTIAM RIVER MEHAMA, OR APR-SEP 965.0 116 1250.0 150 680.0 82 834. 754 1102 101 WILLAMETTE RIVER SALEM, OR APR-SEP 5450.0 113 7130.0 148 3770.0 78 4804. 4373 7506 96 CLACKAMAS RIVER ESTACADA, OR APR-SEP 920.0 123 1130.0 151 715.0 96 748. 678 771 92 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 165.0 109 210.0 139 120.0 79 151. 156 86 95 JAN-JUL 192.0 106 235.0 130 147.0 81 181. 195 86 95 ROGUE RIVER RAYGOLD, OR APR-SEP 970.0 109 1270.0 143 675.0 76 889. 895 696 85 JAN-JUL 1680.0 106 1980.0 125 1380.0 87 1584. 1970 696 85 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 86.0 97 126.0 142 46.0 52 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 137.0 106 215.0 167 58.0 45 129. 196 APR-SEP 105.0 106 185.0 187 25.0 25 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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