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Water Supply Forecasts Northwest River Forecast Center Thursday January 31, 2008 at 22:11 GMT Observed precipitation through the 28th Future precip assumed to be normal Snow included Observed runoff through December note: current month runoff based on OBSERVED + ESP to the end of JAN UPPER COLUMBIA BASINS Feb-08 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 10100.0 105 11800.0 123 8400.0 87 9619. 9985 1690 107 FEB-SEP 13600.0 105 15300.0 118 11900.0 92 12960. 12300 1690 107 APR-SEP 13100.0 105 14800.0 118 11400.0 91 12500. 11850 1690 107 REVELSTOKE, BC JAN-JUL 14600.0 105 16100.0 116 13200.0 95 13880. 14190 2506 110 ARROW LAKES INFLOW JAN-JUL 21700.0 104 24400.0 116 19000.0 91 20960. 20790 3561 90 FEB-SEP 27600.0 104 30300.0 115 24900.0 94 26460. 24050 3561 90 APR-SEP 26200.0 104 28900.0 115 23500.0 94 25110. 22920 3561 90 BIRCHBANK, BC (1) JAN-JUL 40000.0 103 47200.0 121 32700.0 84 38930. 41180 6254 95 APR-SEP 44900.0 103 52100.0 120 37600.0 86 43500. 42860 6254 95 GRAND COULEE, WA (1) JAN-JUL 61500.0 98 74000.0 118 49000.0 78 62900. 66890 9221 85 APR-SEP 63200.0 99 75600.0 118 50700.0 79 63990. 63870 9221 85 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 68300.0 99 82600.0 120 54000.0 78 68910. 71930 9702 82 APR-SEP 69700.0 100 84000.0 121 55400.0 80 69540. 68910 9702 82 THE DALLES NR, OR (1) JAN-JUL 102000.0 95 124000.0 116 79100.0 74 107300. 114700 18120 79 APR-AUG 90100.0 97 113000.0 121 67500.0 73 93090. 97540 18120 79 APR-SEP 95500.0 97 118000.0 120 72900.0 74 98650. 101700 18120 79 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5980.0 95 7510.0 119 4440.0 70 6306. 6909 858 77 APR-AUG 5970.0 96 7500.0 120 4440.0 71 6248. 6628 858 77 APR-SEP 6340.0 96 7870.0 119 4810.0 72 6638. 6922 858 77 LEONIA, ID (1) APR-JUL 6740.0 96 8640.0 123 4840.0 69 7041. 7768 1103 76 APR-SEP 7780.0 96 9670.0 119 5880.0 72 8125. 8545 1103 76 BONNERS FERRY, ID APR-JUL 7330.0 96 9050.0 119 5630.0 74 7619. 8380 1174 77 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 16100.0 101 19100.0 119 13000.0 81 16010. 17210 2098 80 APR-SEP 16700.0 102 19900.0 121 13400.0 81 16450. 16790 2098 80 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1920.0 107 2340.0 130 1500.0 83 1800. 2033 284 95 FEB-SEP 2460.0 107 2880.0 125 2040.0 89 2305. 2361 284 95 APR-SEP 2370.0 106 2790.0 125 1950.0 88 2227. 2291 284 95 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 590.0 84 980.0 139 200.0 28 704. 504 179 81 MISSOULA ABV, MT APR-SEP 1390.0 87 1930.0 121 855.0 54 1595. 1344 300 81 MISSOULA BLO, MT APR-SEP 2600.0 88 3430.0 116 1780.0 60 2962. 2770 510 82 ST. REGIS, MT (1) APR-SEP 3450.0 88 5100.0 131 1800.0 46 3907. 3648 680 82 PLAINS NR, MT (1) APR-SEP 9610.0 87 12900.0 117 6310.0 57 11060. 10840 1453 73 WHITEHORSE RAPIDS, ID (1) APR-SEP 10800.0 87 14600.0 117 7040.0 57 12460. 12060 1512 66 BLACKFOOT RIVER BONNER NR, MT APR-SEP 800.0 90 1160.0 130 435.0 49 892. 840 121 81 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1210.0 89 1560.0 114 850.0 62 1364. 1319 217 87 Feb-08 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1600.0 89 1980.0 110 1220.0 68 1801. 1780 176 69 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1520.0 87 1870.0 107 1170.0 67 1740. 1737 179 74 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2020.0 91 2620.0 118 1430.0 64 2224. 2357 214 71 APR-SEP 1950.0 92 2550.0 120 1350.0 64 2124. 2175 214 71 UPPER/MIDDLE COLUMBIA BASINS Feb-08 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5180.0 89 6590.0 113 3760.0 65 5825. 6002 580 70 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 5940.0 88 7770.0 116 4110.0 61 6713. 7002 788 79 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 790.0 97 1080.0 133 495.0 61 814. 997 159 81 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 12200.0 88 16400.0 118 8030.0 58 13910. 14260 2125 77 APR-JUL 11200.0 88 15400.0 121 7040.0 55 12740. 13520 2125 77 BOX CANYON BLO, WA (1) APR-SEP 12500.0 89 16300.0 116 8690.0 62 14090. 14500 2155 76 KETTLE RIVER LAURIER NR, WA APR-SEP 1880.0 95 2360.0 120 1410.0 72 1972. 2366 95 61 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 730.0 94 985.0 127 480.0 62 778. 871 132 50 APR-JUL 695.0 94 950.0 129 445.0 60 739. 841 132 50 COEUR D'ALENE LAKE IN, ID APR-JUL 2370.0 93 3140.0 123 1600.0 63 2552. 2456 509 58 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2610.0 95 2770.0 101 2460.0 90 2744. 2705 536 58 ST JOE RIVER CALDER, ID APR-SEP 1120.0 93 1420.0 118 825.0 68 1205. 1263 151 59 APR-JUL 1050.0 92 1350.0 119 750.0 66 1136. 1203 151 59 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1640.0 93 2440.0 138 835.0 47 1766. 1470 271 89 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1280.0 95 1860.0 138 690.0 51 1350. 1079 176 97 APR-SEP 1370.0 94 1950.0 134 780.0 54 1450. 1122 176 97 METHOW RIVER PATEROS NR, WA (1) APR-SEP 935.0 95 1350.0 137 525.0 53 985. 1144 106 91 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1180.0 100 1410.0 119 955.0 81 1185. 1345 193 93 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1700.0 104 2280.0 139 1130.0 69 1635. 1669 296 74 YAKIMA AND MAINSTEM SNAKE BASINS Feb-08 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 138.0 104 173.0 130 104.0 78 133. 137 56 68 CLE ELUM, WA APR-SEP 915.0 101 1090.0 121 740.0 82 903. 906 253 62 PARKER NR, WA APR-SEP 1960.0 102 2380.0 124 1540.0 80 1918. 2346 621 71 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 123.0 103 152.0 127 95.0 79 120. 122 46 69 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 460.0 103 550.0 123 370.0 83 448. 475 114 73 NACHES RIVER NACHES NR, WA APR-SEP 795.0 95 965.0 115 630.0 75 837. 1086 231 85 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 130.0 97 164.0 122 96.0 72 134. 154 47 94 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 230.0 95 280.0 116 174.0 72 242. 244 75 84 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 44.0 96 63.0 137 25.0 54 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 750.0 92 940.0 115 560.0 69 815. 812 139 97 APR-SEP 830.0 92 1020.0 113 640.0 71 904. 861 139 97 PALISADES RES INFLOW, ID (1) APR-JUL 3090.0 93 3960.0 119 2220.0 67 3331. 3267 652 85 APR-SEP 3600.0 93 4470.0 115 2730.0 70 3875. 3672 652 85 HEISE NR, ID APR-JUL 3280.0 92 4250.0 119 2300.0 65 3561. 3618 738 84 APR-SEP 3830.0 92 4800.0 115 2860.0 69 4159. 4188 738 84 SHELLEY NR, ID (1) APR-JUL 4360.0 98 5350.0 121 3370.0 76 4428. 4634 1113 83 APR-SEP 5240.0 98 6230.0 117 4250.0 80 5324. 5339 1113 83 BLACKFOOT NR, ID (1) APR-JUL 4390.0 95 5400.0 117 3380.0 73 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2840.0 88 4230.0 130 1440.0 44 3242. 2929 1353 78 MILNER, ID APR-JUL 182.0 15 715.0 58 130.0 11 1228. 996 104 11 KING HILL, ID (1) APR-JUL 1810.0 59 3000.0 99 630.0 21 3045. 3030 1783 62 MURPHY NR, ID (1) APR-JUL 1910.0 62 3150.0 102 660.0 21 3092. 3104 1784 60 WEISER, ID (1) JAN-JUL 6840.0 70 9680.0 99 3990.0 41 9793. 12140 2590 63 APR-JUL 4150.0 72 7000.0 121 1310.0 23 5765. 8160 2590 63 APR-SEP 5570.0 77 8410.0 117 2720.0 38 7192. 9471 2590 63 BROWNLEE RES INFLOW APR-JUL 4700.0 74 7460.0 118 1940.0 31 6313. 8975 2733 63 APR-SEP 6120.0 78 8880.0 114 3360.0 43 7801. 10350 2733 63 HELLS CANYON, ID (1) APR-JUL 4850.0 75 7900.0 122 1800.0 28 6493. 9324 2817 65 APR-SEP 6300.0 79 9350.0 117 3250.0 41 7977. 10740 2817 65 LOWER GRANITE RES IN, WA (1) JAN-JUL 27300.0 91 36700.0 122 18000.0 60 30020. 32200 5167 68 FEB-SEP 28500.0 94 37800.0 124 19200.0 63 30370. 31790 5167 68 APR-JUL 20500.0 95 29800.0 138 11200.0 52 21550. 24440 5167 68 APR-SEP 22800.0 94 32100.0 133 13500.0 56 24140. 26590 5167 68 UPPER SNAKE BASINS Feb-08 EarlyBird ________________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 51 78 SALT RIVER ETNA NR, WY APR-JUL 290.0 85 435.0 127 140.0 41 342. 363 102 77 HENRYS FORK ASHTON NR, ID APR-JUL 555.0 97 690.0 121 415.0 73 571. 659 276 79 ST. ANTHONY, ID APR-JUL 715.0 97 970.0 132 460.0 63 734. 819 317 79 REXBURG NR, ID APR-JUL 1490.0 96 1890.0 121 1080.0 69 1559. 1016 454 67 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 375.0 97 455.0 118 290.0 75 386. 370 72 59 TETON RIVER ST. ANTHONY NR, ID APR-JUL 390.0 97 540.0 134 240.0 60 403. 464 99 84 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 126.0 89 205.0 144 46.0 32 142. 229 35 67 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 71.0 83 114.0 133 27.0 31 86. 94 7 52 PORTNEUF RIVER TOPAZ, ID APR-SEP 78.0 82 106.0 112 51.0 54 95. 120 25 66 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 24.0 83 43.0 148 3.9 13 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 235.0 92 365.0 143 105.0 41 256. 431 34 73 MAGIC RESERVOIR INFLOW, ID APR-JUL 245.0 84 455.0 156 35.0 12 291. 591 16 50 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 75.0 86 122.0 140 27.0 31 87. 163 12 75 MIDDLE SNAKE BASINS Feb-08 EarlyBird ________________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 480.0 78 930.0 152 26.0 4 613. 1050 72 57 OWYHEE RES OUTFLOW APR-JUL 100.0 46 550.0 253 8.8 4 217. 594 11 41 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 590.0 93 750.0 118 425.0 67 636. 828 110 96 BOISE NR, ID (1) APR-JUL 1320.0 93 1810.0 128 820.0 58 1414. 2060 221 83 PARMA NR, ID APR-JUL 230.0 39 670.0 113 74.0 12 593. 1102 187 64 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 505.0 93 620.0 114 385.0 71 542. 816 71 87 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 96.0 87 162.0 147 30.0 27 110. 239 15 59 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 74.0 91 109.0 135 39.0 48 81. 155 14 73 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1650.0 102 2210.0 137 1090.0 67 1617. 2214 362 99 EMMETT NR, ID APR-JUL 1320.0 106 1930.0 155 720.0 58 1246. 1977 292 75 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 130.0 97 169.0 126 91.0 68 134. 180 23 106 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 515.0 104 680.0 137 350.0 71 495. 684 138 108 WEISER RIVER WEISER NR, ID (1) APR-JUL 420.0 107 655.0 168 187.0 48 391. 717 94 72 BURNT RIVER HEREFORD NR, OR MAR-JUL 52.0 102 76.0 149 28.0 55 51. 81 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-08 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 70.0 100 92.0 131 49.0 70 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 315.0 105 410.0 136 225.0 75 301. 394 35 70 SALMON RIVER SALMON, ID (1) APR-JUL 850.0 99 1230.0 144 475.0 55 857. 1078 269 87 WHITEBIRD, ID (1) JAN-JUL 6780.0 100 8840.0 130 4720.0 69 6805. 7274 1138 95 APR-JUL 5890.0 101 7940.0 136 3830.0 65 5851. 6441 1138 95 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 270.0 108 350.0 141 189.0 76 249. 238 20 46 APR-JUL 200.0 109 280.0 152 119.0 65 184. 202 20 46 TROY, OR (1) MAR-JUL 1650.0 105 2220.0 141 1090.0 69 1578. 1573 232 59 APR-JUL 1350.0 106 1920.0 151 785.0 62 1274. 1369 232 59 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4700.0 101 6460.0 139 2940.0 63 4645. 4316 565 68 SPALDING, ID (1) JAN-JUL 9440.0 97 12400.0 128 6460.0 67 9683. 9175 987 63 APR-JUL 7530.0 101 10500.0 141 4560.0 61 7435. 7274 987 63 APR-SEP 7940.0 101 10900.0 139 4960.0 63 7849. 7550 987 63 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3410.0 96 4540.0 128 2270.0 64 3547. 3507 392 60 APR-JUL 2630.0 99 3770.0 143 1490.0 56 2644. 2676 392 60 APR-SEP 2810.0 100 3940.0 141 1670.0 60 2803. 2786 392 60 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 59.0 111 77.0 145 41.0 77 53. 63 22 60 UMATILLA RIVER GIBBON NR, OR APR-JUL 84.0 115 115.0 158 53.0 73 73. 86 30 68 PENDLETON, OR APR-JUL 173.0 116 245.0 164 102.0 68 149. 178 65 65 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 172.0 108 230.0 144 114.0 71 160. 0 APR-JUL 133.0 108 190.0 154 75.0 61 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 635.0 106 905.0 152 365.0 61 597. 745 99 64 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1230.0 107 1710.0 148 740.0 64 1153. 1235 140 53 APR-SEP 920.0 106 1410.0 163 435.0 50 865. 1038 140 53 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 545.0 103 615.0 116 475.0 90 528. 497 342 102 Feb-08 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 158.0 86 250.0 136 65.0 35 184. 316 17 34 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 31.0 86 47.0 131 15.5 43 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Feb-08 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6380.0 100 8010.0 126 4760.0 75 6365. 5621 3001 92 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3150.0 98 4250.0 132 2050.0 64 3217. 3453 1333 76 APR-JUL 1810.0 107 2910.0 172 715.0 42 1689. 1642 1333 76 APR-SEP 2060.0 107 3160.0 164 965.0 50 1922. 1817 1333 76 CASTLE ROCK, WA APR-SEP 2690.0 102 4240.0 161 1150.0 44 2639. 2380 2344 85 JAN-JUL 4590.0 97 6130.0 130 3040.0 65 4709. 5136 2344 85 LEWIS RIVER ARIEL, WA JAN-JUL 2290.0 97 2680.0 114 1900.0 81 2351. 2514 1216 79 MCKENZIE RIVER VIDA NR, OR APR-SEP 1290.0 107 1580.0 132 1000.0 83 1201. 1142 1110 96 S. SANTIAM RIVER WATERLOO, OR APR-SEP 635.0 108 905.0 154 365.0 62 587. 540 986 93 N. SANTIAM RIVER MEHAMA, OR APR-SEP 895.0 107 1180.0 141 610.0 73 834. 754 1088 100 WILLAMETTE RIVER SALEM, OR APR-SEP 5120.0 107 6800.0 142 3440.0 72 4804. 4373 7332 93 CLACKAMAS RIVER ESTACADA, OR APR-SEP 825.0 110 1030.0 138 620.0 83 748. 678 764 91 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 163.0 108 210.0 139 118.0 78 151. 156 66 73 JAN-JUL 176.0 97 220.0 122 131.0 72 181. 195 66 73 ROGUE RIVER RAYGOLD, OR APR-SEP 975.0 110 1280.0 144 675.0 76 889. 895 700 86 JAN-JUL 1690.0 107 1990.0 126 1390.0 88 1584. 1970 700 86 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 79.0 89 118.0 133 39.0 44 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 114.0 88 194.0 150 34.0 26 129. 196 APR-SEP 88.0 89 168.0 170 7.8 8 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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