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Water Supply Forecasts Northwest River Forecast Center Friday June 06, 2008 at 21:39 GMT Full month of observed precipitation Future precip 90% of normal for the first half of Jun and 100% of normal for the rest of the period No snow included Full complement runoff applied through MAY UPPER COLUMBIA BASINS Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % COLUMBIA RIVER MICA RESERVOIR INFLOW, BC JAN-JUL 9900.0 103 11200.0 116 8620.0 90 9619. 9985 4300 99 FEB-SEP 13300.0 103 14600.0 113 12000.0 93 12960. 12300 4300 99 APR-SEP 12900.0 103 14100.0 113 11600.0 93 12500. 11850 4300 99 REVELSTOKE, BC JAN-JUL 14100.0 102 15100.0 109 13000.0 94 13880. 14190 6533 100 ARROW LAKES INFLOW JAN-JUL 20500.0 98 22400.0 107 18600.0 89 20960. 20790 10010 88 FEB-SEP 26000.0 98 27900.0 105 24100.0 91 26460. 24050 10010 88 APR-SEP 25100.0 100 27000.0 108 23200.0 92 25110. 22920 10010 88 BIRCHBANK, BC (1) JAN-JUL 37400.0 96 41600.0 107 33100.0 85 38930. 41180 20290 91 APR-SEP 42500.0 98 46800.0 108 38300.0 88 43500. 42860 20290 91 GRAND COULEE, WA (1) JAN-JUL 59800.0 95 66000.0 105 53600.0 85 62900. 66890 35710 87 APR-SEP 63500.0 99 69700.0 109 57300.0 90 63990. 63870 35710 87 ROCK ISLAND DAM BLO, WA (1) JAN-JUL 66400.0 96 73700.0 107 59100.0 86 68910. 71930 38450 86 APR-SEP 70300.0 101 77600.0 112 63000.0 91 69540. 68910 38450 86 THE DALLES NR, OR (1) JAN-JUL 98200.0 92 108000.0 101 88700.0 83 107300. 114700 66460 83 APR-AUG 91900.0 99 101000.0 108 82400.0 89 93090. 97540 66460 83 APR-SEP 97400.0 99 107000.0 108 87900.0 89 98650. 101700 66460 83 KOOTENAI RIVER LIBBY RES INFLOW, MT (1) JAN-JUL 5840.0 93 6960.0 110 4710.0 75 6306. 6909 3141 83 APR-AUG 5940.0 95 7070.0 113 4820.0 77 6248. 6628 3141 83 APR-SEP 6300.0 95 7430.0 112 5180.0 78 6638. 6922 3141 83 LEONIA, ID (1) APR-JUL 6860.0 97 8250.0 117 5470.0 78 7041. 7768 4502 85 APR-SEP 7920.0 97 9310.0 115 6530.0 80 8125. 8545 4502 85 BONNERS FERRY, ID APR-JUL 7510.0 99 8870.0 116 6140.0 81 7619. 8380 4968 85 KOOTENAY RIVER KOOTENAY LAKE INFLOW, BC JAN-JUL 14900.0 93 16800.0 105 13000.0 81 16010. 17210 8611 86 APR-SEP 15800.0 96 18000.0 109 13700.0 83 16450. 16790 8611 86 DUNCAN RIVER DUNCAN RESERVOIR INFLOW, BC JAN-JUL 1750.0 97 2110.0 117 1400.0 78 1800. 2033 864 98 FEB-SEP 2250.0 98 2600.0 113 1890.0 82 2305. 2361 864 98 APR-SEP 2190.0 98 2550.0 115 1840.0 83 2227. 2291 864 98 CLARK FORK BLACKFOOT RIVER ABV, MT APR-SEP 710.0 101 930.0 132 490.0 70 704. 504 558 88 MISSOULA ABV, MT APR-SEP 1620.0 102 1870.0 117 1370.0 86 1595. 1344 1135 87 MISSOULA BLO, MT APR-SEP 3070.0 104 3440.0 116 2700.0 91 2962. 2770 2009 89 ST. REGIS, MT (1) APR-SEP 4060.0 104 4800.0 123 3320.0 85 3907. 3648 2727 89 PLAINS NR, MT (1) APR-SEP 11500.0 104 13200.0 119 9870.0 89 11060. 10840 6753 83 WHITEHORSE RAPIDS, ID (1) APR-SEP 12900.0 104 14800.0 119 11000.0 88 12460. 12060 7666 81 BLACKFOOT RIVER BONNER NR, MT APR-SEP 895.0 100 985.0 110 810.0 91 892. 840 577 87 BITTERROOT RIVER AT MOUTH, MT APR-SEP 1500.0 110 1670.0 122 1320.0 97 1364. 1319 907 95 Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % N.F. FLATHEAD RIVE COLUMBIA FALLS NR, MT APR-SEP 1830.0 102 2010.0 112 1640.0 91 1801. 1780 1004 87 M.F. FLATHEAD RIVE WEST GLACIER NR, MT APR-SEP 1920.0 110 2120.0 122 1730.0 99 1740. 1737 1110 100 S.F. FLATHEAD RIVE HUNGRY HORSE RES IN, MT (1) JAN-JUL 2200.0 99 2620.0 118 1790.0 80 2224. 2357 1370 92 APR-SEP 2190.0 103 2610.0 123 1770.0 83 2124. 2175 1370 92 UPPER/MIDDLE COLUMBIA BASINS Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % FLATHEAD RIVER COLUMBIA FALLS, MT APR-SEP 6090.0 105 6820.0 117 5360.0 92 5825. 6002 3513 90 FLATHEAD LAKE INFLOW, MT (1) APR-SEP 7130.0 106 8300.0 124 5950.0 89 6713. 7002 4188 90 PRIEST RIVER PRIEST RIVER, ID (1) APR-JUL 860.0 106 1050.0 129 670.0 82 814. 997 773 88 PEND OREILLE RIVER PEND OREILLE LAKE IN, ID (1) APR-SEP 14500.0 104 16600.0 119 12500.0 90 13910. 14260 9873 88 APR-JUL 13300.0 104 15400.0 121 11200.0 88 12740. 13520 9873 88 BOX CANYON BLO, WA (1) APR-SEP 14900.0 106 17000.0 121 12700.0 90 14090. 14500 10150 88 KETTLE RIVER LAURIER NR, WA APR-SEP 1630.0 83 1890.0 96 1370.0 69 1972. 2366 976 71 COEUR D'ALENE RIVE ENAVILLE, ID (1) APR-SEP 1110.0 143 1200.0 154 1010.0 130 778. 871 1182 102 APR-JUL 1050.0 142 1150.0 156 955.0 129 739. 841 1182 102 COEUR D'ALENE LAKE IN, ID APR-JUL 3110.0 122 3390.0 133 2830.0 111 2552. 2456 3410 89 SPOKANE RIVER SPOKANE, WA (1) APR-SEP 3360.0 122 3430.0 125 3290.0 120 2744. 2705 3457 89 ST JOE RIVER CALDER, ID APR-SEP 1410.0 117 1530.0 127 1300.0 108 1205. 1263 1049 83 APR-JUL 1330.0 117 1450.0 128 1220.0 107 1136. 1203 1049 83 OKANAGAN RIVER TONASKET NR, WA (1) APR-SEP 1640.0 93 2110.0 119 1170.0 66 1766. 1470 1035 86 SIMILKAMEEN RIVER NIGHTHAWK NR, WA (1) APR-JUL 1280.0 95 1600.0 119 970.0 72 1350. 1079 822 93 APR-SEP 1380.0 95 1690.0 117 1060.0 73 1450. 1122 822 93 METHOW RIVER PATEROS NR, WA (1) APR-SEP 1050.0 107 1250.0 127 835.0 85 985. 1144 636 106 CHELAN RIVER LAKE CHELAN INFLOW, WA (1) APR-SEP 1220.0 103 1430.0 121 1010.0 85 1185. 1345 762 97 WENATCHEE RIVER PESHASTIN, WA APR-SEP 1640.0 100 2140.0 131 1130.0 69 1635. 1669 1072 80 YAKIMA AND MAINSTEM SNAKE BASINS Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % YAKIMA RIVER KEECHELUS LAKE IN, WA (1) APR-SEP 161.0 121 184.0 138 137.0 103 133. 137 160 82 CLE ELUM, WA APR-SEP 1050.0 116 1180.0 131 920.0 102 903. 906 897 80 PARKER NR, WA APR-SEP 2360.0 123 2660.0 139 2050.0 107 1918. 2346 2207 87 KACHESS RIVER KACHESS LAKE INFLOW, WA (1) APR-SEP 144.0 120 162.0 135 126.0 105 120. 122 145 85 CLE ELUM RIVER CLE ELUM LAKE INFLOW, WA (1) APR-SEP 530.0 118 595.0 133 465.0 104 448. 475 392 86 NACHES RIVER NACHES NR, WA APR-SEP 1020.0 122 1150.0 137 900.0 108 837. 1086 854 95 BUMPING RIVER BUMPING LAKE INFLOW, WA (1) APR-SEP 151.0 113 179.0 134 123.0 92 134. 154 123 90 TIETON RIVER RIMROCK LAKE INFLOW, WA (1) APR-SEP 270.0 112 305.0 126 240.0 99 242. 244 208 85 AHTANUM CREEKS TAMPICO NR, WA APR-SEP 51.0 111 66.0 143 36.0 78 46. 0 SNAKE RIVER JACKSON LAKE INFLOW, WY (1) APR-JUL 850.0 104 1000.0 123 690.0 85 815. 812 499 94 APR-SEP 945.0 105 1100.0 122 785.0 87 904. 861 499 94 PALISADES RES INFLOW, ID (1) APR-JUL 3240.0 97 3680.0 110 2800.0 84 3331. 3267 2076 84 APR-SEP 3770.0 97 4210.0 109 3330.0 86 3875. 3672 2076 84 HEISE NR, ID APR-JUL 3450.0 97 3930.0 110 2960.0 83 3561. 3618 2306 83 APR-SEP 4030.0 97 4510.0 108 3540.0 85 4159. 4188 2306 83 SHELLEY NR, ID (1) APR-JUL 4430.0 100 4980.0 112 3880.0 88 4428. 4634 3312 88 APR-SEP 5330.0 100 5880.0 110 4780.0 90 5324. 5339 3312 88 BLACKFOOT NR, ID (1) APR-JUL 4610.0 100 5200.0 113 4020.0 87 4604. 0 AMER. FALLS RES IN, ID (1) APR-JUL 3200.0 99 4010.0 124 2400.0 74 3242. 2929 3158 72 MILNER, ID APR-JUL 290.0 24 940.0 77 187.0 15 1228. 996 203 8 KING HILL, ID (1) APR-JUL 1900.0 62 2700.0 89 1100.0 36 3045. 3030 3407 56 MURPHY NR, ID (1) APR-JUL 1870.0 60 2740.0 89 995.0 32 3092. 3104 3415 54 WEISER, ID (1) JAN-JUL 6240.0 64 7660.0 78 4820.0 49 9793. 12140 6180 59 APR-JUL 4200.0 73 5620.0 97 2790.0 48 5765. 8160 6180 59 APR-SEP 5620.0 78 7040.0 98 4200.0 58 7192. 9471 6180 59 BROWNLEE RES INFLOW APR-JUL 4780.0 76 6490.0 103 3060.0 48 6313. 8975 6751 59 APR-SEP 5850.0 75 7570.0 97 4130.0 53 7801. 10350 6751 59 HELLS CANYON, ID (1) APR-JUL 5010.0 77 6580.0 101 3430.0 53 6493. 9324 7134 62 APR-SEP 6460.0 81 8030.0 101 4890.0 61 7977. 10740 7134 62 LOWER GRANITE RES IN, WA (1) JAN-JUL 26600.0 89 30100.0 100 23100.0 77 30020. 32200 20050 77 FEB-SEP 27700.0 91 31200.0 103 24200.0 80 30370. 31790 20050 77 APR-JUL 21900.0 102 25400.0 118 18400.0 85 21550. 24440 20050 77 APR-SEP 24200.0 100 27700.0 115 20700.0 86 24140. 26590 20050 77 UPPER SNAKE BASINS Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % GREY'S RIVER PALISADES ABV, WY APR-SEP 390.0 99 435.0 110 340.0 86 394. 401 257 106 SALT RIVER ETNA NR, WY APR-JUL 310.0 91 370.0 108 250.0 73 342. 363 283 77 HENRYS FORK ASHTON NR, ID APR-JUL 580.0 102 655.0 115 510.0 89 571. 659 692 83 ST. ANTHONY, ID APR-JUL 720.0 98 825.0 112 605.0 82 734. 819 837 82 REXBURG NR, ID APR-JUL 1540.0 99 1710.0 110 1360.0 87 1559. 1016 1143 67 FALLS RIVER SQUIRREL NR, ID (1) APR-JUL 355.0 92 415.0 108 300.0 78 386. 370 226 64 TETON RIVER ST. ANTHONY NR, ID APR-JUL 430.0 107 505.0 125 355.0 88 403. 464 295 89 BIG LOST RIVER MACKAY RESERVOIR INFLOW, ID APR-JUL 119.0 84 159.0 112 79.0 56 142. 229 78 66 WILLOW CREEK RIRIE RESERVOIR INFLOW APR-JUL 74.0 86 101.0 117 48.0 56 86. 94 43 48 PORTNEUF RIVER TOPAZ, ID APR-SEP 58.0 61 70.0 74 46.0 48 95. 120 63 59 GOOSE CREEK OAKLEY RES INFLOW, ID APR-JUL 27.0 93 32.0 110 21.0 72 29. 0 BIG WOOD RIVER HAILEY, ID (1) APR-JUL 220.0 86 295.0 115 143.0 56 256. 431 139 76 MAGIC RESERVOIR INFLOW, ID APR-JUL 230.0 79 285.0 98 181.0 62 291. 591 138 54 LITTLE WOOD RIVER CAREY NR, ID APR-JUL 60.0 69 77.0 89 43.0 49 87. 163 50 59 MIDDLE SNAKE BASINS Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % BRUNEAU RIVER HOT SPRING NR, ID APR-JUL 169.0 81 215.0 103 125.0 60 208. 276 132 65 OWYHEE RIVER OWYHEE RES INFLOW, OR MAR-JUL 465.0 76 530.0 86 400.0 65 613. 1050 486 65 OWYHEE RES OUTFLOW APR-JUL 28.0 13 34.0 16 25.0 12 217. 594 40 11 BOISE RIVER TWIN SPRINGS NR, ID (1) APR-JUL 665.0 105 765.0 120 565.0 89 636. 828 570 100 BOISE NR, ID (1) APR-JUL 1360.0 96 1600.0 113 1130.0 80 1414. 2060 1184 85 PARMA NR, ID APR-JUL 315.0 53 530.0 89 122.0 21 593. 1102 484 49 S.F. BOISE RIVER ANDERSON RNCH RES IN, ID (1) APR-JUL 475.0 88 580.0 107 375.0 69 542. 816 368 78 MALHEUR RIVER DREWSEY NR, OR MAR-JUL 83.0 75 88.0 80 79.0 72 110. 239 91 65 N.F. MALHEUR RIVER BEULAH RES INFLOW, OR (1) MAR-JUL 77.0 95 81.0 100 73.0 90 81. 155 80 85 PAYETTE RIVER HORSESHOE BEND NR, ID (1) APR-JUL 1730.0 107 2050.0 127 1400.0 87 1617. 2214 1516 97 EMMETT NR, ID APR-JUL 1420.0 114 1770.0 142 1070.0 86 1246. 1977 1250 86 DEADWOOD RIVER DEADWOOD RES INFLOW, ID (1) APR-JUL 145.0 108 169.0 126 121.0 90 134. 180 111 109 N.F. PAYETTE RIVER CASCADE RES INFLOW, ID (1) APR-JUL 530.0 107 630.0 127 435.0 88 495. 684 495 100 WEISER RIVER WEISER NR, ID (1) APR-JUL 460.0 118 585.0 150 335.0 86 391. 717 633 95 BURNT RIVER HEREFORD NR, OR MAR-JUL 54.0 106 58.0 114 51.0 100 51. 81 LOWER SNAKE AND CENTRAL OREGON BASINS Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % POWDER RIVER SUMPTER NR, OR MAR-JUL 74.0 106 83.0 119 65.0 93 70. 90 IMNAHA RIVER IMNAHA, OR MAR-JUL 325.0 108 370.0 123 285.0 95 301. 394 238 96 SALMON RIVER SALMON, ID (1) APR-JUL 860.0 100 1150.0 134 575.0 67 857. 1078 727 94 WHITEBIRD, ID (1) JAN-JUL 7200.0 106 8200.0 120 6200.0 91 6805. 7274 4731 105 APR-JUL 6430.0 110 7420.0 127 5430.0 93 5851. 6441 4731 105 GRANDE RONDE RIVER LA GRANDE, OR MAR-JUL 305.0 122 325.0 131 285.0 114 249. 238 301 106 APR-JUL 240.0 130 260.0 141 220.0 120 184. 202 301 106 TROY, OR (1) MAR-JUL 1770.0 112 2170.0 138 1380.0 87 1578. 1573 1551 91 APR-JUL 1560.0 122 1960.0 154 1170.0 92 1274. 1369 1551 91 CLEARWATER RIVER OROFINO, ID (1) APR-JUL 5110.0 110 6160.0 133 4050.0 87 4645. 4316 3606 83 SPALDING, ID (1) JAN-JUL 9400.0 97 10900.0 113 7940.0 82 9683. 9175 6376 82 APR-JUL 8280.0 111 9740.0 131 6820.0 92 7435. 7274 6376 82 APR-SEP 8680.0 111 10100.0 129 7220.0 92 7849. 7550 6376 82 N.F. CLEARWATER RI DWORSHAK RES INFLOW, ID (1) JAN-JUL 3270.0 92 3700.0 104 2840.0 80 3547. 3507 2345 77 APR-JUL 2880.0 109 3320.0 126 2450.0 93 2644. 2676 2345 77 APR-SEP 3050.0 109 3480.0 124 2620.0 93 2803. 2786 2345 77 S.F. WALLA WALLA R MILTON NR, OR APR-JUL 90.0 170 98.0 185 82.0 155 53. 63 118 124 UMATILLA RIVER GIBBON NR, OR APR-JUL 107.0 147 116.0 159 97.0 133 73. 86 162 107 PENDLETON, OR APR-JUL 225.0 151 240.0 161 210.0 141 149. 178 392 111 M.F. JOHN DAY RIVE RITTER, OR (1) MAR-JUL 176.0 110 194.0 121 159.0 99 160. 0 APR-JUL 165.0 134 183.0 149 147.0 120 123. 0 N.F. JOHN DAY RIVE MONUMENT NR, OR APR-JUL 800.0 134 885.0 148 715.0 120 597. 745 966 106 JOHN DAY RIVER SERVICE CREEK, OR (1) MAR-SEP 1280.0 111 1570.0 136 995.0 86 1153. 1235 1267 94 APR-SEP 1070.0 124 1360.0 157 790.0 91 865. 1038 1267 94 DESCHUTES RIVER BENHAM FALLS, OR APR-SEP 560.0 106 585.0 111 530.0 100 528. 497 617 93 Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % CROOKED RIVER PRINEVILLE RES INFLOW, OR MAR-JUL 148.0 80 161.0 88 136.0 74 184. 316 170 65 OCHOCO CREEK OCHOCO RES INFLOW, OR MAR-JUL 33.0 92 37.0 103 29.0 81 36. 59 WESTSIDE AND SOUTHERN OREGON BASINS Jun-08 Final ________________Forecast______________ __________Runoff___________ Stream and Station Probable % Maximum % Minimum % Average PrevYr CurYR % SKAGIT RIVER CONCRETE NR, WA APR-SEP 6630.0 104 7770.0 122 5500.0 86 6365. 5621 6535 93 COWLITZ RIVER MAYFIELD RES INFLOW, WA JAN-JUL 3120.0 97 3910.0 122 2330.0 72 3217. 3453 3230 87 APR-JUL 1940.0 115 2730.0 162 1150.0 68 1689. 1642 3230 87 APR-SEP 2210.0 115 3000.0 156 1420.0 74 1922. 1817 3230 87 CASTLE ROCK, WA APR-SEP 2900.0 110 3980.0 151 1810.0 69 2639. 2380 5111 91 JAN-JUL 4550.0 97 5630.0 120 3460.0 73 4709. 5136 5111 91 LEWIS RIVER ARIEL, WA JAN-JUL 2280.0 97 2390.0 102 2170.0 92 2351. 2514 2699 88 MCKENZIE RIVER VIDA NR, OR APR-SEP 1520.0 127 1610.0 134 1440.0 120 1201. 1142 2578 105 S. SANTIAM RIVER WATERLOO, OR APR-SEP 815.0 139 925.0 158 705.0 120 587. 540 2162 105 N. SANTIAM RIVER MEHAMA, OR APR-SEP 1260.0 151 1390.0 167 1130.0 135 834. 754 2403 110 WILLAMETTE RIVER SALEM, OR APR-SEP 5510.0 115 6100.0 127 4920.0 102 4804. 4373 15640 100 CLACKAMAS RIVER ESTACADA, OR APR-SEP 1010.0 135 1090.0 146 920.0 123 748. 678 1785 102 N. UMPQUA RIVER LEMOLO LAKE INFLOW, OR (1) APR-SEP 153.0 101 174.0 115 132.0 87 151. 156 182 94 JAN-JUL 176.0 97 197.0 109 155.0 86 181. 195 182 94 ROGUE RIVER RAYGOLD, OR APR-SEP 1030.0 116 1090.0 123 975.0 110 889. 895 1780 97 JAN-JUL 1650.0 104 1720.0 109 1590.0 100 1584. 1970 1780 97 CHEWAUCAN RIVER PAISLEY NR, OR MAR-JUL 57.0 64 80.0 90 35.0 39 89. 16 SILVIES RIVER BURNS NR, OR MAR-JUL 78.0 60 123.0 95 32.0 25 129. 196 APR-SEP 79.0 80 125.0 126 34.0 34 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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