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Water Supply Forecasts Northwest River Forecast Center Thursday February 01, 2007 at 21:48 GMT Observed precipitation through the 30th Future precip is 60% of normal for the first half of FEB and normal of the rest of the period Snow included in this run Full complement runoff applied note: runoff based on observed + ESP forecast for the month of JAN UPPER COLUMBIA BASINS Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 9390.0 98 11100.0 115 7680.0 80 9619. 9985 1280 81 FEB-SEP 12600.0 97 14400.0 111 10900.0 84 12960. 12300 1280 81 APR-SEP 12200.0 98 13900.0 111 10500.0 84 12500. 11850 1280 81 REVELSTOKE, BC JAN-JUL 13600.0 98 15100.0 109 12200.0 88 13880. 14190 1731 76 ARROW LAKES INFLOW JAN-JUL 20300.0 97 23000.0 110 17600.0 84 20960. 20790 3003 76 FEB-SEP 25700.0 97 28400.0 107 23000.0 87 26460. 24050 3003 76 APR-SEP 24400.0 97 27100.0 108 21700.0 86 25110. 22920 3003 76 BIRCHBANK, BC (1) JAN-JUL 39100.0 100 46300.0 119 31800.0 82 38930. 41180 5835 89 APR-SEP 43700.0 100 51000.0 117 36500.0 84 43500. 42860 5835 89 GRAND COULEE, WA (1) JAN-JUL 62100.0 99 74600.0 119 49600.0 79 62900. 66890 10460 96 APR-SEP 63400.0 99 75900.0 119 51000.0 80 63990. 63870 10460 96 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 70400.0 102 84700.0 123 56000.0 81 68910. 71930 11570 98 APR-SEP 71400.0 103 85700.0 123 57100.0 82 69540. 68910 11570 98 THE DALLES NR, OR (1) JAN-JUL 100000.0 93 123000.0 115 77400.0 72 107300. 114700 21800 94 APR-AUG 87500.0 94 110000.0 118 64900.0 70 93090. 97540 21800 94 APR-SEP 92700.0 94 115000.0 117 70100.0 71 98650. 101700 21800 94 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 6810.0 108 8350.0 132 5280.0 84 6306. 6909 1112 99 APR-AUG 6770.0 108 8300.0 133 5240.0 84 6248. 6628 1112 99 APR-SEP 7190.0 108 8720.0 131 5660.0 85 6638. 6922 1112 99 LEONIA, ID (1) APR-JUL 7520.0 107 9420.0 134 5620.0 80 7041. 7768 1548 107 APR-SEP 8680.0 107 10600.0 130 6780.0 83 8125. 8545 1548 107 BONNERS FERRY, ID APR-JUL 8200.0 108 9900.0 130 6470.0 85 7619. 8380 1645 107 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 16800.0 105 19800.0 124 13700.0 86 16010. 17210 2727 104 APR-SEP 17300.0 105 20500.0 125 14000.0 85 16450. 16790 2727 104 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1800.0 100 2220.0 123 1380.0 77 1800. 2033 271 90 FEB-SEP 2290.0 99 2710.0 118 1870.0 81 2305. 2361 271 90 APR-SEP 2210.0 99 2630.0 118 1790.0 80 2227. 2291 271 90 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 635.0 90 1030.0 146 245.0 35 704. 504 213 96 MISSOULA ABV, MT APR-SEP 1440.0 90 1980.0 124 900.0 56 1595. 1344 384 103 MISSOULA BLO, MT APR-SEP 2690.0 91 3520.0 119 1870.0 63 2962. 2770 694 112 ST. REGIS, MT (1) APR-SEP 3620.0 93 5270.0 135 1970.0 50 3907. 3648 885 107 PLAINS NR, MT (1) APR-SEP 10400.0 94 13600.0 123 7050.0 64 11060. 10840 2234 112 WHITEHORSE RAPIDS, ID (1) APR-SEP 11400.0 91 15200.0 122 7640.0 61 12460. 12060 2461 107 BLACKFOOT RIVER BONNER NR, MT APR-SEP 800.0 90 1160.0 130 435.0 49 892. 840 171 114 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1250.0 92 1610.0 118 900.0 66 1364. 1319 300 120 Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1790.0 99 2170.0 120 1410.0 78 1801. 1780 391 153 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1650.0 95 2000.0 115 1300.0 75 1740. 1737 353 146 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2050.0 92 2650.0 119 1450.0 65 2224. 2357 358 120 APR-SEP 1960.0 92 2560.0 121 1360.0 64 2124. 2175 358 120 UPPER/MIDDLE COLUMBIA BASINS Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5540.0 95 6960.0 119 4120.0 71 5825. 6002 1066 128 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6440.0 96 8270.0 123 4610.0 69 6713. 7002 1367 137 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 850.0 104 1140.0 140 555.0 68 814. 997 225 114 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13000.0 93 17200.0 124 8850.0 64 13910. 14260 3267 118 APR-JUL 11900.0 93 16100.0 126 7710.0 61 12740. 13520 3267 118 BOX CANYON BLO, WA (1) APR-SEP 13400.0 95 17200.0 122 9500.0 67 14090. 14500 3381 119 KETTLE RIVER LAURIER NR, WA APR-SEP 2200.0 112 2670.0 135 1730.0 88 1972. 2366 90 58 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 730.0 94 985.0 127 480.0 62 778. 871 331 125 APR-JUL 695.0 94 945.0 128 445.0 60 739. 841 331 125 COEUR D'ALENE LAKE IN, ID APR-JUL 2370.0 93 3150.0 123 1600.0 63 2552. 2456 973 111 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2590.0 94 2750.0 100 2430.0 89 2744. 2705 1028 111 ST JOE RIVER CALDER, ID APR-SEP 1140.0 95 1440.0 120 845.0 70 1205. 1263 311 122 APR-JUL 1080.0 95 1380.0 121 785.0 69 1136. 1203 311 122 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 2040.0 116 2840.0 161 1230.0 70 1766. 1470 375 123 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1670.0 124 2250.0 167 1080.0 80 1350. 1079 302 166 APR-SEP 1790.0 123 2370.0 163 1200.0 83 1450. 1122 302 166 METHOW RIVER PATEROS NR, WA (1) APR-SEP 1180.0 120 1590.0 161 770.0 78 985. 1144 165 142 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1420.0 120 1650.0 139 1200.0 101 1185. 1345 332 161 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1990.0 122 2560.0 157 1410.0 86 1635. 1669 540 135 YAKIMA AND MAINSTEM SNAKE BASINS Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 167.0 126 200.0 150 132.0 99 133. 137 86 104 CLE ELUM, WA APR-SEP 1110.0 123 1290.0 143 940.0 104 903. 906 488 120 PARKER NR, WA APR-SEP 2400.0 125 2820.0 147 1980.0 103 1918. 2346 1135 130 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 146.0 122 175.0 146 118.0 98 120. 122 81 121 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 555.0 124 645.0 144 465.0 104 448. 475 196 126 NACHES RIVER NACHES NR, WA APR-SEP 1010.0 121 1180.0 141 845.0 101 837. 1086 460 169 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 167.0 125 200.0 149 133.0 99 134. 154 77 154 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 285.0 118 340.0 140 230.0 95 242. 244 133 149 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 54.0 117 73.0 159 35.0 76 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-SEP 770.0 85 960.0 106 580.0 64 904. 861 128 89 APR-JUL 695.0 85 885.0 109 505.0 62 815. 812 128 89 PALISADES RES INFLOW, ID (1) APR-JUL 2790.0 84 3660.0 110 1910.0 57 3331. 3267 709 92 HEISE NR, ID APR-JUL 2970.0 83 3940.0 111 1990.0 56 3561. 3618 852 97 SHELLEY NR, ID (1) APR-JUL 3880.0 88 4870.0 110 2890.0 65 4428. 4634 1374 102 BLACKFOOT NR, ID (1) APR-JUL 3910.0 85 4910.0 107 2900.0 63 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 2490.0 77 3880.0 120 1100.0 34 3242. 2929 1518 87 MILNER, ID APR-JUL 210.0 17 905.0 74 135.0 11 1228. 996 349 35 KING HILL, ID (1) APR-JUL 1620.0 53 2800.0 92 435.0 14 3045. 3030 1952 68 MURPHY NR, ID (1) APR-JUL 1710.0 55 2960.0 96 470.0 15 3092. 3104 2015 68 WEISER, ID (1) JAN-JUL 5770.0 59 8620.0 88 2930.0 30 9793. 12140 2896 70 APR-JUL 3350.0 58 6200.0 108 510.0 9 5765. 8160 2896 70 BROWNLEE RES INFLOW APR-JUL 3780.0 60 6540.0 104 1020.0 16 6313. 8975 3053 70 HELLS CANYON, ID (1) APR-JUL 3860.0 59 6910.0 106 810.0 12 6493. 9324 3147 72 LOWER GRANITE RES IN, WA (1) JAN-JUL 23700.0 79 33000.0 110 14300.0 48 30020. 32200 6324 84 FEB-SEP 24200.0 80 33500.0 110 14900.0 49 30370. 31790 6324 84 APR-JUL 17300.0 80 26600.0 123 7950.0 37 21550. 24440 6324 84 UPPER SNAKE BASINS Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 330.0 84 440.0 112 215.0 55 394. 401 71 109 SALT RIVER ETNA NR, WY APR-JUL 285.0 83 430.0 126 136.0 40 342. 363 125 94 HENRYS FORK ASHTON NR, ID APR-JUL 485.0 85 620.0 109 345.0 60 571. 659 333 95 ST. ANTHONY, ID APR-JUL 640.0 87 900.0 123 385.0 52 734. 819 430 107 REXBURG NR, ID APR-JUL 1340.0 86 1750.0 112 935.0 60 1559. 1016 567 84 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 320.0 83 400.0 104 235.0 61 386. 370 97 80 TETON RIVER ST. ANTHONY NR, ID APR-JUL 340.0 84 490.0 122 192.0 48 403. 464 127 108 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 123.0 87 205.0 144 43.0 30 142. 229 45 86 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 71.0 83 114.0 133 28.0 33 86. 94 11 81 PORTNEUF RIVER TOPAZ, ID APR-SEP 74.0 78 101.0 106 46.0 48 95. 120 31 82 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 22.0 76 42.0 145 2.4 8 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 210.0 82 340.0 133 82.0 32 256. 431 47 101 MAGIC RESERVOIR INFLOW, ID APR-JUL 210.0 72 415.0 143 0.0 0 291. 591 29 90 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 64.0 74 112.0 129 16.8 19 87. 163 17 106 MIDDLE SNAKE BASINS Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 142.0 68 260.0 125 26.0 13 208. 276 25 78 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 380.0 62 830.0 135 0.0 0 613. 1050 86 68 OWYHEE RES OUTFLOW APR-JUL 19.4 9 390.0 180 0.0 0 217. 594 15 55 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 550.0 86 715.0 112 385.0 61 636. 828 115 101 BOISE NR, ID (1) APR-JUL 1170.0 83 1660.0 117 680.0 48 1414. 2060 249 94 PARMA NR, ID APR-JUL 122.0 21 545.0 92 57.0 10 593. 1102 209 72 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 440.0 81 560.0 103 325.0 60 542. 816 83 102 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 69.0 63 135.0 123 3.7 3 110. 239 19 75 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 54.0 67 89.0 110 19.2 24 81. 155 16 84 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1440.0 89 2000.0 124 875.0 54 1617. 2214 343 94 EMMETT NR, ID APR-JUL 1080.0 87 1690.0 136 470.0 38 1246. 1977 261 67 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 120.0 90 159.0 119 81.0 60 134. 180 23 106 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 450.0 91 615.0 124 285.0 58 495. 684 120 94 WEISER RIVER WEISER NR, ID (1) APR-JUL 340.0 87 575.0 147 107.0 27 391. 717 79 61 BURNT RIVER HEREFORD NR, OR MAR-JUL 38.0 75 63.0 124 14.3 28 51. 81 9 75 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 54.0 77 75.0 107 33.0 47 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 240.0 80 330.0 110 150.0 50 301. 394 44 89 SALMON RIVER SALMON, ID (1) APR-JUL 745.0 87 1120.0 131 370.0 43 857. 1078 325 105 WHITEBIRD, ID (1) JAN-JUL 5880.0 86 7940.0 117 3830.0 56 6805. 7274 1175 98 APR-JUL 5070.0 87 7130.0 122 3010.0 51 5851. 6441 1175 98 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 188.0 76 270.0 108 108.0 43 249. 238 29 66 APR-JUL 139.0 76 220.0 120 59.0 32 184. 202 29 66 TROY, OR (1) MAR-JUL 1290.0 82 1860.0 118 720.0 46 1578. 1573 352 90 APR-JUL 1040.0 82 1610.0 126 475.0 37 1274. 1369 352 90 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4310.0 93 6070.0 131 2550.0 55 4645. 4316 937 113 SPALDING, ID (1) JAN-JUL 9020.0 93 12000.0 124 6050.0 62 9683. 9175 1831 116 APR-JUL 7020.0 94 10000.0 134 4040.0 54 7435. 7274 1831 116 APR-SEP 7410.0 94 10400.0 133 4430.0 56 7849. 7550 1831 116 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3320.0 94 4460.0 126 2180.0 61 3547. 3507 789 121 APR-JUL 2510.0 95 3640.0 138 1370.0 52 2644. 2676 789 121 APR-SEP 2670.0 95 3810.0 136 1530.0 55 2803. 2786 789 121 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 53.0 100 71.0 134 35.0 66 53. 63 38 103 UMATILLA RIVER GIBBON NR, OR APR-JUL 67.0 92 99.0 136 36.0 49 73. 86 53 119 PENDLETON, OR APR-JUL 136.0 91 205.0 138 65.0 44 149. 178 117 117 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 136.0 85 193.0 121 78.0 49 160. 0 APR-JUL 105.0 85 162.0 132 47.0 38 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 515.0 86 785.0 131 245.0 41 597. 745 152 98 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 980.0 85 1470.0 127 495.0 43 1153. 1235 189 72 APR-SEP 735.0 85 1220.0 141 245.0 28 865. 1038 189 72 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 510.0 97 580.0 110 440.0 83 528. 497 301 90 Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 169.0 92 260.0 141 76.0 41 184. 316 36 73 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 29.0 81 44.0 122 12.9 36 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Feb-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6950.0 109 8570.0 135 5320.0 84 6365. 5621 4010 123 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3400.0 106 4500.0 140 2310.0 72 3217. 3453 2253 128 APR-JUL 1850.0 110 2950.0 175 755.0 45 1689. 1642 2253 128 APR-SEP 2110.0 110 3210.0 167 1020.0 53 1922. 1817 2253 128 CASTLE ROCK, WA APR-SEP 2820.0 107 4370.0 166 1270.0 48 2639. 2380 3620 131 JAN-JUL 4940.0 105 6490.0 138 3390.0 72 4709. 5136 3620 131 LEWIS RIVER ARIEL, WA JAN-JUL 2560.0 109 2950.0 125 2170.0 92 2351. 2514 1792 117 MCKENZIE RIVER VIDA NR, OR APR-SEP 1180.0 98 1470.0 122 895.0 75 1201. 1142 1347 116 S. SANTIAM RIVER WATERLOO, OR APR-SEP 570.0 97 840.0 143 300.0 51 587. 540 1260 119 N. SANTIAM RIVER MEHAMA, OR APR-SEP 805.0 97 1090.0 131 525.0 63 834. 754 1344 124 WILLAMETTE RIVER SALEM, OR APR-SEP 4590.0 96 6270.0 131 2900.0 60 4804. 4373 8973 114 CLACKAMAS RIVER ESTACADA, OR APR-SEP 740.0 99 950.0 127 535.0 72 748. 678 1073 128 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 143.0 95 188.0 125 98.0 65 151. 156 58 64 JAN-JUL 154.0 85 199.0 110 109.0 60 181. 195 58 64 ROGUE RIVER RAYGOLD, OR APR-SEP 835.0 94 1130.0 127 535.0 60 889. 895 743 91 JAN-JUL 1400.0 88 1700.0 107 1100.0 69 1584. 1970 743 91 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 62.0 70 102.0 115 22.0 25 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 89.0 69 169.0 131 9.1 7 129. 196 9 60 APR-SEP 68.0 69 148.0 149 0.0 0 99. 167 9 60 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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