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Water Supply Forecasts Northwest River Forecast Center Thursday June 28, 2007 at 21:20 GMT Observed precipitation through the 25th Future precip assumed to be normal No snow included Observed runoff through May note: current month runoff based on OBSERVED + ESP to the end of JUN UPPER COLUMBIA BASINS Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 11300.0 117 12600.0 131 10000.0 104 9619. 9985 8729 115 FEB-SEP 15200.0 117 16500.0 127 14000.0 108 12960. 12300 8729 115 APR-SEP 14700.0 118 15900.0 127 13400.0 107 12500. 11850 8729 115 REVELSTOKE, BC JAN-JUL 16100.0 116 17100.0 123 15100.0 109 13880. 14190 12600 112 ARROW LAKES INFLOW JAN-JUL 23400.0 112 25300.0 121 21600.0 103 20960. 20790 19230 106 FEB-SEP 29800.0 113 31700.0 120 28000.0 106 26460. 24050 19230 106 APR-SEP 28300.0 113 30100.0 120 26500.0 106 25110. 22920 19230 106 BIRCHBANK, BC (1) JAN-JUL 43700.0 112 47800.0 123 39600.0 102 38930. 41180 38980 112 APR-SEP 48000.0 110 52100.0 120 43900.0 101 43500. 42860 38980 112 GRAND COULEE, WA (1) JAN-JUL 64400.0 102 70200.0 112 58600.0 93 62900. 66890 61000 103 APR-SEP 63800.0 100 69600.0 109 58000.0 91 63990. 63870 61000 103 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 72400.0 105 79300.0 115 65400.0 95 68910. 71930 67530 104 APR-SEP 71200.0 102 78100.0 112 64300.0 92 69540. 68910 67530 104 THE DALLES NR, OR (1) JAN-JUL 95500.0 89 104000.0 97 87300.0 81 107300. 114700 99490 92 APR-AUG 80400.0 86 88700.0 95 72100.0 77 93090. 97540 99490 92 APR-SEP 85200.0 86 93500.0 95 76900.0 78 98650. 101700 99490 92 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 7370.0 117 8420.0 134 6320.0 100 6306. 6909 7039 118 APR-AUG 7200.0 115 8250.0 132 6150.0 98 6248. 6628 7039 118 APR-SEP 7660.0 115 8710.0 131 6610.0 100 6638. 6922 7039 118 LEONIA, ID (1) APR-JUL 7610.0 108 8910.0 127 6310.0 90 7041. 7768 8947 114 APR-SEP 8780.0 108 10100.0 124 7480.0 92 8125. 8545 8947 114 BONNERS FERRY, ID APR-JUL 8020.0 105 9350.0 123 6740.0 88 7619. 8380 9681 113 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 18000.0 112 19700.0 123 16300.0 102 16010. 17210 17120 114 APR-SEP 17900.0 109 19800.0 120 16000.0 97 16450. 16790 17120 114 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 2170.0 121 2520.0 140 1820.0 101 1800. 2033 1773 120 FEB-SEP 2780.0 121 3130.0 136 2430.0 105 2305. 2361 1773 120 APR-SEP 2660.0 119 3010.0 135 2310.0 104 2227. 2291 1773 120 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 560.0 80 785.0 112 340.0 48 704. 504 739 87 MISSOULA ABV, MT APR-SEP 1240.0 78 1490.0 93 990.0 62 1595. 1344 1589 89 MISSOULA BLO, MT APR-SEP 2200.0 74 2570.0 87 1830.0 62 2962. 2770 2957 91 ST. REGIS, MT (1) APR-SEP 2980.0 76 3620.0 93 2340.0 60 3907. 3648 3920 90 PLAINS NR, MT (1) APR-SEP 8610.0 78 10000.0 90 7210.0 65 11060. 10840 10730 92 WHITEHORSE RAPIDS, ID (1) APR-SEP 9530.0 76 11200.0 90 7840.0 63 12460. 12060 12020 90 BLACKFOOT RIVER BONNER NR, MT APR-SEP 675.0 76 760.0 85 585.0 66 892. 840 851 91 BITTERROOT RIVER AT MOUTH, MT APR-SEP 965.0 71 1140.0 84 790.0 58 1364. 1319 1272 87 Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1700.0 94 1880.0 104 1510.0 84 1801. 1780 1951 113 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1420.0 82 1610.0 93 1220.0 70 1740. 1737 1720 102 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 1960.0 88 2380.0 107 1540.0 69 2224. 2357 2107 95 APR-SEP 1710.0 81 2130.0 100 1290.0 61 2124. 2175 2107 95 UPPER/MIDDLE COLUMBIA BASINS Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 4960.0 85 5690.0 98 4220.0 72 5825. 6002 5848 101 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 5580.0 83 6750.0 101 4400.0 66 6713. 7002 6912 101 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 670.0 82 850.0 104 490.0 60 814. 997 1097 100 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 11000.0 79 12900.0 93 9130.0 66 13910. 14260 14930 96 APR-JUL 10100.0 79 12000.0 94 8170.0 64 12740. 13520 14930 96 BOX CANYON BLO, WA (1) APR-SEP 11200.0 79 13200.0 94 9200.0 65 14090. 14500 15250 96 KETTLE RIVER LAURIER NR, WA APR-SEP 1570.0 80 1830.0 93 1310.0 66 1972. 2366 1569 81 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 495.0 64 590.0 76 400.0 51 778. 871 1266 99 APR-JUL 470.0 64 565.0 76 375.0 51 739. 841 1266 99 COEUR D'ALENE LAKE IN, ID APR-JUL 1610.0 63 1890.0 74 1340.0 53 2552. 2456 3821 88 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 1840.0 67 1910.0 70 1780.0 65 2744. 2705 4148 94 ST JOE RIVER CALDER, ID APR-SEP 865.0 72 975.0 81 750.0 62 1205. 1263 1484 95 APR-JUL 815.0 72 930.0 82 705.0 62 1136. 1203 1484 95 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1770.0 100 2210.0 125 1330.0 75 1766. 1470 2061 114 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1440.0 107 1740.0 129 1140.0 84 1350. 1079 1834 130 APR-SEP 1550.0 107 1860.0 128 1250.0 86 1450. 1122 1834 130 METHOW RIVER PATEROS NR, WA (1) APR-SEP 1090.0 111 1280.0 130 890.0 90 985. 1144 1185 125 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1340.0 113 1550.0 131 1130.0 95 1185. 1345 1538 133 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1640.0 100 2140.0 131 1130.0 69 1635. 1669 2151 118 YAKIMA AND MAINSTEM SNAKE BASINS Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 124.0 93 147.0 111 101.0 76 133. 137 248 109 CLE ELUM, WA APR-SEP 800.0 89 930.0 103 675.0 75 903. 906 1503 112 PARKER NR, WA APR-SEP 1820.0 95 2130.0 111 1520.0 79 1918. 2346 3670 122 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 110.0 92 128.0 107 92.0 77 120. 122 230 115 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 410.0 92 470.0 105 345.0 77 448. 475 667 115 NACHES RIVER NACHES NR, WA APR-SEP 765.0 91 890.0 106 645.0 77 837. 1086 1461 130 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 126.0 94 155.0 116 98.0 73 134. 154 224 125 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 210.0 87 245.0 101 182.0 75 242. 244 361 117 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 43.0 93 58.0 126 28.0 61 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 460.0 56 615.0 75 305.0 37 815. 812 607 69 APR-SEP 510.0 56 665.0 74 355.0 39 904. 861 607 69 PALISADES RES INFLOW, ID (1) APR-JUL 1640.0 49 2080.0 62 1200.0 36 3331. 3267 2483 66 APR-SEP 1910.0 49 2350.0 61 1470.0 38 3875. 3672 2483 66 HEISE NR, ID APR-JUL 1850.0 52 2340.0 66 1360.0 38 3561. 3618 2890 70 APR-SEP 2160.0 52 2650.0 64 1670.0 40 4159. 4188 2890 70 SHELLEY NR, ID (1) APR-JUL 2240.0 51 2770.0 63 1710.0 39 4428. 4634 4049 75 APR-SEP 2690.0 51 3220.0 60 2170.0 41 5324. 5339 4049 75 BLACKFOOT NR, ID (1) APR-JUL 2250.0 49 2820.0 61 1690.0 37 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 670.0 21 1390.0 43 0.0 0 3242. 2929 2901 52 MILNER, ID APR-JUL 130.0 11 198.0 16 130.0 11 1228. 996 561 20 KING HILL, ID (1) APR-JUL 1530.0 50 2290.0 75 775.0 25 3045. 3030 4038 59 MURPHY NR, ID (1) APR-JUL 1370.0 44 2200.0 71 540.0 17 3092. 3104 4067 57 WEISER, ID (1) JAN-JUL 4630.0 47 5960.0 61 3310.0 34 9793. 12140 6411 53 APR-JUL 2340.0 41 3670.0 64 1010.0 18 5765. 8160 6411 53 APR-SEP 3710.0 52 5040.0 70 2380.0 33 7192. 9471 6411 53 BROWNLEE RES INFLOW APR-JUL 2550.0 40 4270.0 68 830.0 13 6313. 8975 6972 54 APR-SEP 3690.0 47 5410.0 69 1970.0 25 7801. 10350 6972 54 HELLS CANYON, ID (1) APR-JUL 2570.0 40 4030.0 62 1110.0 17 6493. 9324 7255 55 APR-SEP 3950.0 50 5410.0 68 2490.0 31 7977. 10740 7255 55 LOWER GRANITE RES IN, WA (1) JAN-JUL 19100.0 64 22400.0 75 15900.0 53 30020. 32200 22510 69 FEB-SEP 19300.0 64 22600.0 74 16100.0 53 30370. 31790 22510 69 APR-JUL 12800.0 59 16100.0 75 9490.0 44 21550. 24440 22510 69 APR-SEP 14400.0 60 17700.0 73 11100.0 46 24140. 26590 22510 69 UPPER SNAKE BASINS Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 220.0 56 270.0 69 173.0 44 394. 401 282 77 SALT RIVER ETNA NR, WY APR-JUL 135.0 39 195.0 57 75.0 22 342. 363 304 64 HENRYS FORK ASHTON NR, ID APR-JUL 355.0 62 425.0 74 280.0 49 571. 659 823 84 ST. ANTHONY, ID APR-JUL 380.0 52 495.0 67 270.0 37 734. 819 1027 84 REXBURG NR, ID APR-JUL 685.0 44 865.0 55 510.0 33 1559. 1016 1215 55 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 161.0 42 220.0 57 105.0 27 386. 370 289 59 TETON RIVER ST. ANTHONY NR, ID APR-JUL 205.0 51 280.0 69 133.0 33 403. 464 384 79 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 59.0 42 100.0 70 18.7 13 142. 229 117 65 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 14.7 17 39.0 45 0.0 0 86. 94 39 37 PORTNEUF RIVER TOPAZ, ID APR-SEP 51.0 54 63.0 66 39.0 41 95. 120 86 69 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 13.4 46 19.0 66 7.8 27 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 104.0 41 177.0 69 31.0 12 256. 431 165 59 MAGIC RESERVOIR INFLOW, ID APR-JUL 62.0 21 113.0 39 11.5 4 291. 591 128 38 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 10.9 13 28.0 32 0.0 0 87. 163 31 29 MIDDLE SNAKE BASINS Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 91.0 44 135.0 65 47.0 23 208. 276 137 52 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 138.0 23 205.0 33 73.0 12 613. 1050 283 35 OWYHEE RES OUTFLOW APR-JUL 36.0 17 43.0 20 28.0 13 217. 594 74 20 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 355.0 56 455.0 72 255.0 40 636. 828 544 71 BOISE NR, ID (1) APR-JUL 670.0 47 890.0 63 445.0 31 1414. 2060 1119 62 PARMA NR, ID APR-JUL 118.0 20 161.0 27 88.0 15 593. 1102 414 37 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 235.0 43 335.0 62 132.0 24 542. 816 360 57 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 37.0 34 42.0 38 32.0 29 110. 239 68 45 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 2.8 3 6.7 8 0.0 0 81. 155 25 24 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 895.0 55 1220.0 75 575.0 36 1617. 2214 1483 71 EMMETT NR, ID APR-JUL 595.0 48 950.0 76 320.0 26 1246. 1977 994 54 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 80.0 60 104.0 78 56.0 42 134. 180 116 76 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 285.0 58 375.0 76 196.0 40 495. 684 482 72 WEISER RIVER WEISER NR, ID (1) APR-JUL 141.0 36 250.0 64 33.0 8 391. 717 337 45 BURNT RIVER HEREFORD NR, OR MAR-JUL 15.3 30 18.7 37 11.9 23 51. 81 29 43 LOWER SNAKE AND CENTRAL OREGON BASINS Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 27.0 39 36.0 51 17.5 25 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 175.0 58 220.0 73 133.0 44 301. 394 215 66 SALMON RIVER SALMON, ID (1) APR-JUL 550.0 64 830.0 97 270.0 32 857. 1078 967 86 WHITEBIRD, ID (1) JAN-JUL 4570.0 67 5500.0 81 3630.0 53 6805. 7274 5228 77 APR-JUL 3660.0 63 4590.0 78 2720.0 46 5851. 6441 5228 77 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 121.0 49 140.0 56 102.0 41 249. 238 182 58 APR-JUL 67.0 36 86.0 47 48.0 26 184. 202 182 58 TROY, OR (1) MAR-JUL 930.0 59 1320.0 84 540.0 34 1578. 1573 1407 69 APR-JUL 645.0 51 1040.0 82 255.0 20 1274. 1369 1407 69 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 3140.0 68 4150.0 89 2130.0 46 4645. 4316 4799 82 SPALDING, ID (1) JAN-JUL 7460.0 77 8880.0 92 6050.0 62 9683. 9175 8605 86 APR-JUL 5100.0 69 6520.0 88 3690.0 50 7435. 7274 8605 86 APR-SEP 5420.0 69 6840.0 87 4010.0 51 7849. 7550 8605 86 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 2790.0 79 3210.0 90 2380.0 67 3547. 3507 3314 88 APR-JUL 1850.0 70 2270.0 86 1440.0 54 2644. 2676 3314 88 APR-SEP 1960.0 70 2370.0 85 1540.0 55 2803. 2786 3314 88 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 38.0 72 46.0 87 30.0 57 53. 63 104 97 UMATILLA RIVER GIBBON NR, OR APR-JUL 37.0 51 47.0 64 27.0 37 73. 86 143 89 PENDLETON, OR APR-JUL 66.0 44 82.0 55 50.0 34 149. 178 313 85 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 71.0 44 89.0 56 53.0 33 160. 0 APR-JUL 55.0 45 73.0 59 37.0 30 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 285.0 48 370.0 62 200.0 34 597. 745 720 71 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 685.0 59 950.0 82 420.0 36 1153. 1235 971 65 APR-SEP 420.0 49 690.0 80 154.0 18 865. 1038 971 65 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 490.0 93 520.0 98 465.0 88 528. 497 708 94 Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 100.0 54 112.0 61 87.0 47 184. 316 162 60 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 25.0 69 29.0 81 21.0 58 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Jul-07 EarlyBird ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6500.0 102 7630.0 120 5360.0 84 6365. 5621 10640 123 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3040.0 94 3820.0 119 2260.0 70 3217. 3453 4622 111 APR-JUL 1330.0 79 2110.0 125 545.0 32 1689. 1642 4622 111 APR-SEP 1510.0 79 2290.0 119 725.0 38 1922. 1817 4622 111 CASTLE ROCK, WA APR-SEP 1900.0 72 2980.0 113 820.0 31 2639. 2380 6970 112 JAN-JUL 4420.0 94 5500.0 117 3340.0 71 4709. 5136 6970 112 LEWIS RIVER ARIEL, WA JAN-JUL 2020.0 86 2140.0 91 1910.0 81 2351. 2514 3252 99 MCKENZIE RIVER VIDA NR, OR APR-SEP 900.0 75 980.0 82 815.0 68 1201. 1142 2657 100 S. SANTIAM RIVER WATERLOO, OR APR-SEP 340.0 58 450.0 77 230.0 39 587. 540 2164 100 N. SANTIAM RIVER MEHAMA, OR APR-SEP 565.0 68 690.0 83 435.0 52 834. 754 2404 102 WILLAMETTE RIVER SALEM, OR APR-SEP 3120.0 65 3710.0 77 2530.0 53 4804. 4373 15820 96 CLACKAMAS RIVER ESTACADA, OR APR-SEP 510.0 68 595.0 80 425.0 57 748. 678 1960 104 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 99.0 66 121.0 80 78.0 52 151. 156 168 75 JAN-JUL 130.0 72 151.0 83 109.0 60 181. 195 168 75 ROGUE RIVER RAYGOLD, OR APR-SEP 680.0 76 740.0 83 615.0 69 889. 895 1767 88 JAN-JUL 1260.0 80 1320.0 83 1200.0 76 1584. 1970 1767 88 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 34.0 38 56.0 63 11.4 13 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 29.0 22 75.0 58 0.0 0 129. 196 46 30 APR-SEP 17.0 17 63.0 64 0.0 0 99. 167 46 30 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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