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Water Supply Forecasts Northwest River Forecast Center Thursday February 16, 2006 at 18:56 GMT Observed precipitation through the 12th Future precip is 75% of normal for the remainder of February Future precip is 100% of normal for the rest of the period No snow included Observed runoff through January note: current month runoff based on OBSERVED + ESP to the end of FEB UPPER COLUMBIA BASINS Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 8230.0 86 9640.0 100 6810.0 71 9619. 9079 2180 121 FEB-SEP 11000.0 85 12400.0 96 9590.0 74 12960. 11800 2180 121 APR-SEP 10600.0 85 12000.0 96 9170.0 73 12500. 11360 2180 121 REVELSTOKE, BC JAN-JUL 12000.0 86 13300.0 96 10800.0 78 13880. 12860 3248 126 ARROW LAKES INFLOW JAN-JUL 18300.0 87 20700.0 99 15900.0 76 20960. 18580 5178 114 FEB-SEP 22900.0 87 25300.0 96 20500.0 77 26460. 22700 5178 114 APR-SEP 21700.0 86 24100.0 96 19300.0 77 25110. 21650 5178 114 BIRCHBANK, BC (1) JAN-JUL 36400.0 94 42700.0 110 30100.0 77 38930. 34250 10310 133 APR-SEP 39800.0 91 46100.0 106 33500.0 77 43500. 37220 10310 133 GRAND COULEE, WA (1) JAN-JUL 60400.0 96 70600.0 112 50100.0 80 62900. 54180 16590 123 APR-SEP 59500.0 93 69800.0 109 49300.0 77 63990. 52740 16590 123 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 67100.0 97 78900.0 114 55200.0 80 68910. 58540 16600 113 APR-SEP 66400.0 95 78200.0 112 54500.0 78 69540. 56310 16600 113 THE DALLES NR, OR (1) JAN-JUL 106000.0 99 124000.0 116 88500.0 82 107300. 87690 31330 105 APR-AUG 89800.0 96 107000.0 115 72200.0 78 93090. 73770 31330 105 APR-SEP 95200.0 97 113000.0 115 77500.0 79 98650. 77440 31330 105 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 6100.0 97 7500.0 119 4700.0 75 6306. 5187 1871 142 APR-AUG 5980.0 96 7380.0 118 4580.0 73 6248. 5084 1871 142 APR-SEP 6360.0 96 7760.0 117 4960.0 75 6638. 5340 1871 142 LEONIA, ID (1) APR-JUL 6730.0 96 8460.0 120 5010.0 71 7041. 5608 2224 127 APR-SEP 7770.0 96 9490.0 117 6040.0 74 8125. 6276 2224 127 BONNERS FERRY, ID APR-JUL 7320.0 96 8860.0 116 5720.0 75 7619. 5943 2337 126 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 16200.0 101 19000.0 119 13500.0 84 16010. 13420 4426 140 APR-SEP 16100.0 98 19200.0 117 13100.0 80 16450. 13430 4426 140 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1660.0 92 2060.0 114 1270.0 71 1800. 1696 433 129 FEB-SEP 2100.0 91 2500.0 108 1710.0 74 2305. 2147 433 129 APR-SEP 2020.0 91 2420.0 109 1630.0 73 2227. 2066 433 129 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 750.0 107 1130.0 161 365.0 52 704. 617 217 79 MISSOULA ABV, MT APR-SEP 1620.0 102 2140.0 134 1090.0 68 1595. 1353 385 84 MISSOULA BLO, MT APR-SEP 3150.0 106 3930.0 133 2360.0 80 2962. 2767 628 82 ST. REGIS, MT (1) APR-SEP 4120.0 105 5520.0 141 2720.0 70 3907. 3591 864 84 PLAINS NR, MT (1) APR-SEP 11200.0 101 13900.0 126 8450.0 76 11060. 8624 2711 110 WHITEHORSE RAPIDS, ID (1) APR-SEP 12500.0 100 15600.0 125 9330.0 75 12460. 9321 2885 100 BLACKFOOT RIVER BONNER NR, MT APR-SEP 865.0 97 1190.0 133 540.0 61 892. 736 167 90 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1530.0 112 1840.0 135 1230.0 90 1364. 1317 255 82 Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1770.0 98 2110.0 117 1430.0 79 1801. 1404 498 167 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1690.0 97 2010.0 116 1370.0 79 1740. 1418 434 152 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2270.0 102 2790.0 125 1750.0 79 2224. 1817 412 113 APR-SEP 2130.0 100 2650.0 125 1610.0 76 2124. 1692 412 113 UPPER/MIDDLE COLUMBIA BASINS Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 5740.0 99 7020.0 121 4470.0 77 5825. 4553 1368 138 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 6700.0 100 8290.0 123 5120.0 76 6713. 4984 1771 145 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 830.0 102 1060.0 130 600.0 74 814. 662 304 119 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 13900.0 100 17300.0 124 10500.0 75 13910. 10350 3892 111 APR-JUL 12700.0 100 16100.0 126 9380.0 74 12740. 9715 3892 111 BOX CANYON BLO, WA (1) APR-SEP 14200.0 101 17400.0 123 11000.0 78 14090. 10850 4095 113 KETTLE RIVER LAURIER NR, WA APR-SEP 2000.0 101 2400.0 122 1600.0 81 1972. 1569 167 89 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 695.0 89 930.0 120 460.0 59 778. 419 446 114 APR-JUL 660.0 89 890.0 120 425.0 58 739. 393 446 114 COEUR D'ALENE LAKE IN, ID APR-JUL 2340.0 92 3090.0 121 1590.0 62 2552. 1367 1392 106 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 2390.0 87 2500.0 91 2280.0 83 2744. 1623 1575 115 ST JOE RIVER CALDER, ID APR-SEP 1110.0 92 1390.0 115 830.0 69 1205. 867 362 101 APR-JUL 1050.0 92 1330.0 117 775.0 68 1136. 814 362 101 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1570.0 89 2180.0 123 965.0 55 1766. 847 336 88 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1210.0 90 1610.0 119 810.0 60 1350. 807 189 86 APR-SEP 1300.0 90 1700.0 117 900.0 62 1450. 837 189 86 METHOW RIVER PATEROS NR, WA (1) APR-SEP 925.0 94 1250.0 127 595.0 60 985. 674 116 83 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1140.0 96 1350.0 114 925.0 78 1185. 973 251 98 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1620.0 99 2170.0 133 1070.0 65 1635. 1263 382 76 YAKIMA AND MAINSTEM SNAKE BASINS Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 138.0 104 169.0 127 107.0 80 133. 97 80 79 CLE ELUM, WA APR-SEP 940.0 104 1070.0 118 805.0 89 903. 667 415 81 PARKER NR, WA APR-SEP 2150.0 112 2500.0 130 1810.0 94 1918. 1554 976 85 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 122.0 102 148.0 123 96.0 80 120. 87 66 79 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 470.0 105 540.0 121 405.0 90 448. 353 154 80 NACHES RIVER NACHES NR, WA APR-SEP 920.0 110 1080.0 129 760.0 91 837. 714 336 92 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 151.0 113 181.0 135 121.0 90 134. 100 62 98 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 260.0 107 310.0 128 215.0 89 242. 198 101 86 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 54.0 117 72.0 157 36.0 78 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-SEP 1020.0 113 1200.0 133 840.0 93 904. 717 170 98 APR-JUL 920.0 113 1100.0 135 745.0 91 815. 639 170 98 PALISADES RES INFLOW, ID (1) APR-JUL 3640.0 109 4350.0 131 2930.0 88 3331. 2288 848 92 HEISE NR, ID APR-JUL 3880.0 109 4680.0 131 3080.0 86 3561. 2472 1000 95 SHELLEY NR, ID (1) APR-JUL 5040.0 114 5900.0 133 4180.0 94 4428. 2899 1514 95 BLACKFOOT NR, ID (1) APR-JUL 5070.0 110 5950.0 129 4190.0 91 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 3540.0 109 4730.0 146 2350.0 72 3242. 1071 1811 84 MILNER, ID APR-JUL 650.0 53 1600.0 130 210.0 17 1228. 43 258 20 KING HILL, ID (1) APR-JUL 2360.0 78 3410.0 112 1310.0 43 3045. 1416 2137 60 MURPHY NR, ID (1) APR-JUL 2530.0 82 3650.0 118 1400.0 45 3092. 1399 2287 62 WEISER, ID (1) JAN-JUL 9930.0 101 12300.0 126 7530.0 77 9793. 5271 4384 83 APR-JUL 5970.0 104 8370.0 145 3560.0 62 5765. 3085 4384 83 BROWNLEE RES INFLOW APR-JUL 6740.0 107 9030.0 143 4440.0 70 6313. 3522 4848 86 HELLS CANYON, ID (1) APR-JUL 6970.0 107 9420.0 145 4530.0 70 6493. 3743 4969 88 LOWER GRANITE RES IN, WA (1) JAN-JUL 31900.0 106 39100.0 130 24600.0 82 30020. 23810 8590 85 FEB-SEP 32000.0 105 39300.0 129 24800.0 82 30370. 23940 8590 85 APR-JUL 23200.0 108 30500.0 142 15900.0 74 21550. 16730 8590 85 UPPER SNAKE BASINS Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 430.0 109 530.0 135 335.0 85 394. 292 112 145 SALT RIVER ETNA NR, WY APR-JUL 370.0 108 510.0 149 230.0 67 342. 176 146 93 HENRYS FORK ASHTON NR, ID APR-JUL 595.0 104 720.0 126 470.0 82 571. 378 346 81 ST. ANTHONY, ID APR-JUL 790.0 108 1040.0 142 540.0 74 734. 382 479 96 REXBURG NR, ID APR-JUL 1650.0 106 2050.0 131 1260.0 81 1559. 394 592 73 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 410.0 106 490.0 127 335.0 87 386. 187 82 56 TETON RIVER ST. ANTHONY NR, ID APR-JUL 420.0 104 560.0 139 280.0 69 403. 261 129 91 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 162.0 114 240.0 169 85.0 60 142. 74 0 0 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 89.0 103 125.0 145 53.0 62 86. 13 PORTNEUF RIVER TOPAZ, ID APR-SEP 99.0 104 124.0 131 74.0 78 95. 39 37 77 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 35.0 121 52.0 179 18.5 64 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 315.0 123 425.0 166 210.0 82 256. 229 45 81 MAGIC RESERVOIR INFLOW, ID APR-JUL 385.0 132 550.0 189 220.0 76 291. 147 46 108 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 114.0 131 160.0 184 68.0 78 87. 56 19 95 MIDDLE SNAKE BASINS Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 255.0 123 365.0 175 145.0 70 208. 112 48 108 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 765.0 125 965.0 157 565.0 92 613. 158 352 164 OWYHEE RES OUTFLOW APR-JUL 325.0 150 525.0 242 125.0 58 217. 30 148 236 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 805.0 127 945.0 149 670.0 105 636. 586 165 112 BOISE NR, ID (1) APR-JUL 1870.0 132 2290.0 162 1460.0 103 1414. 1129 369 102 PARMA NR, ID APR-JUL 725.0 122 1100.0 185 360.0 61 593. 195 465 113 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 725.0 134 835.0 154 615.0 113 542. 393 91 87 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 171.0 155 225.0 205 118.0 107 110. 60 64 153 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 118.0 146 143.0 177 94.0 116 81. 46 32 113 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1980.0 122 2470.0 153 1490.0 92 1617. 1490 477 102 EMMETT NR, ID APR-JUL 1640.0 132 2170.0 174 1110.0 89 1246. 1177 451 86 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 165.0 123 197.0 147 133.0 99 134. 133 23 86 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 615.0 124 750.0 152 480.0 97 495. 530 183 115 WEISER RIVER WEISER NR, ID (1) APR-JUL 475.0 121 685.0 175 260.0 66 391. 369 396 177 BURNT RIVER HEREFORD NR, OR MAR-JUL 72.0 141 92.0 180 52.0 102 51. 28 14 81 LOWER SNAKE AND CENTRAL OREGON BASINS Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 86.0 123 107.0 153 66.0 94 70. 45 IMNAHA RIVER IMNAHA, OR MAR-JUL 320.0 106 405.0 135 235.0 78 301. 261 56 87 SALMON RIVER SALMON, ID (1) APR-JUL 1040.0 121 1390.0 162 705.0 82 857. 676 287 77 WHITEBIRD, ID (1) JAN-JUL 7640.0 112 9400.0 138 5880.0 86 6805. 5978 1261 86 APR-JUL 6670.0 114 8430.0 144 4910.0 84 5851. 5081 1261 86 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 255.0 102 330.0 133 177.0 71 249. 191 51 70 APR-JUL 188.0 102 265.0 144 111.0 60 184. 130 51 70 TROY, OR (1) MAR-JUL 1800.0 114 2240.0 142 1360.0 86 1578. 1410 447 76 APR-JUL 1470.0 115 1910.0 150 1030.0 81 1274. 1032 447 76 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 4880.0 105 6440.0 139 3320.0 71 4645. 4382 926 81 SPALDING, ID (1) JAN-JUL 10100.0 104 12500.0 129 7670.0 79 9683. 9879 1930 85 APR-JUL 7800.0 105 10200.0 137 5400.0 73 7435. 6870 1930 85 APR-SEP 8230.0 105 10600.0 135 5830.0 74 7849. 7159 1930 85 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3560.0 100 4490.0 127 2630.0 74 3547. 3564 863 93 APR-JUL 2640.0 100 3570.0 135 1710.0 65 2644. 2300 863 93 APR-SEP 2800.0 100 3730.0 133 1870.0 67 2803. 2399 863 93 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 58.0 109 74.0 140 42.0 79 53. 48 41 85 UMATILLA RIVER GIBBON NR, OR APR-JUL 79.0 108 109.0 149 49.0 67 73. 66 57 87 PENDLETON, OR APR-JUL 158.0 106 230.0 154 87.0 58 149. 111 123 80 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 193.0 121 250.0 156 138.0 86 160. 0 APR-JUL 149.0 121 205.0 167 94.0 76 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 695.0 116 955.0 160 430.0 72 597. 471 304 118 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1450.0 126 1890.0 164 1020.0 88 1153. 842 550 131 APR-SEP 1090.0 126 1530.0 177 650.0 75 865. 636 550 131 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 590.0 112 640.0 121 535.0 101 528. 0 258 63 Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 300.0 163 375.0 204 220.0 120 184. 68 130 150 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 57.0 158 73.0 203 41.0 114 36. 17 WESTSIDE AND SOUTHERN OREGON BASINS Feb-06 Mid Month ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6340.0 100 7790.0 122 4890.0 77 6365. 4616 4313 108 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3760.0 117 4720.0 147 2800.0 87 3217. 3163 2539 112 APR-JUL 1690.0 100 2650.0 157 730.0 43 1689. 1284 2539 112 APR-SEP 1920.0 100 2880.0 150 965.0 50 1922. 1464 2539 112 CASTLE ROCK, WA APR-SEP 2620.0 99 3980.0 151 1270.0 48 2639. 1930 4016 114 JAN-JUL 5630.0 120 6980.0 148 4280.0 91 4709. 4567 4016 114 LEWIS RIVER ARIEL, WA JAN-JUL 2840.0 121 3220.0 137 2470.0 105 2351. 2532 2157 110 MCKENZIE RIVER VIDA NR, OR APR-SEP 1330.0 111 1620.0 135 1040.0 87 1201. 968 1817 122 S. SANTIAM RIVER WATERLOO, OR APR-SEP 590.0 101 860.0 147 325.0 55 587. 509 1688 124 N. SANTIAM RIVER MEHAMA, OR APR-SEP 820.0 98 1090.0 131 550.0 66 834. 727 1709 122 WILLAMETTE RIVER SALEM, OR APR-SEP 5040.0 105 6710.0 140 3380.0 70 4804. 4281 13230 129 CLACKAMAS RIVER ESTACADA, OR APR-SEP 765.0 102 970.0 130 560.0 75 748. 0 1280 117 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 174.0 115 210.0 139 137.0 91 151. 129 100 89 JAN-JUL 196.0 108 235.0 130 159.0 88 181. 159 100 89 ROGUE RIVER RAYGOLD, OR APR-SEP 1060.0 119 1290.0 145 835.0 94 889. 786 1675 156 JAN-JUL 2190.0 138 2420.0 153 1960.0 124 1584. 1369 1675 156 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 122.0 137 157.0 176 86.0 97 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 182.0 141 260.0 202 102.0 79 129. 31 39 145 APR-SEP 139.0 140 220.0 222 60.0 61 99. 27 39 145 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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