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Water Year
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OWYHEE - OWYHEE DAM
(
OWYO3
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
75
76
23
80
336
APR-JUL
56
56
18
56
307
APR-AUG
66
66
21
67
321
JAN-SEP
142
144
25
147
575
JAN-JUL
124
124
23
124
547
OCT-SEP
198
199
31
203
641
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
75
77
23
80
336
APR-JUL
56
56
18
56
307
APR-AUG
66
67
21
68
321
JAN-SEP
142
144
25
147
575
JAN-JUL
124
124
23
124
547
OCT-SEP
198
200
31
203
641
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
75
77
23
80
336
APR-JUL
56
56
18
56
307
APR-AUG
66
67
21
69
321
JAN-SEP
142
144
25
147
575
JAN-JUL
124
124
23
124
547
OCT-SEP
198
200
31
203
641
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 300, 354, 435, 468, 486, 70, , 74
ESP10, 298, 352, 433, 467, 485, 72, , 76
ESP10, 296, 349, 431, 465, 484, 74, , 78
ESP10, 297, 351, 432, 466, 484, 76, , 80
ESP10, 315, 370, 447, 479, 495, 78, , 82
ESP10, 312, 368, 445, 478, 495, 81, , 85
ESP10, 313, 368, 446, 478, 495, 83, , 87
ESP10, 313, 368, 446, 478, 495, 85, , 89
ESP10, 312, 367, 446, 478, 495, 87, , 91
ESP10, 305, 361, 440, 475, 491, 89, , 93
ESP10, 300, 355, 435, 472, 488, 91, , 95
ESP10, 308, 364, 443, 476, 493, 93, , 97
ESP10, 315, 362, 442, 474, 493, 95, , 99
ESP10, 319, 365, 445, 475, 494, 97, , 101
ESP10, 315, 364, 440, 474, 492, 99, , 103
ESP10, 309, 357, 435, 471, 489, 102, , 106
ESP10, 307, 355, 433, 470, 488, 104, , 108
ESP10, 308, 356, 433, 469, 488, 106, , 110
ESP10, 315, 361, 437, 473, 490, 108, , 112
ESP10, 317, 362, 437, 472, 490, 110, , 114
ESP10, 317, 361, 436, 471, 489, 112, , 116
ESP10, 326, 366, 442, 474, 492, 114, , 118
ESP10, 328, 368, 444, 475, 492, 116, , 120
ESP10, 327, 366, 443, 476, 492, 118, , 122
ESP10, 322, 365, 440, 475, 490, 120, , 124
ESP10, 321, 366, 441, 475, 489, 122, , 126
ESP10, 325, 367, 442, 475, 490, 125, , 129
ESP10, 326, 367, 443, 476, 490, 127, , 131
ESP10, 325, 367, 442, 476, 489, 129, , 133
ESP10, 325, 366, 441, 474, 488, 131, , 135
ESP10, 327, 369, 443, 477, 489, 133, , 137
ESP10, 329, 370, 444, 477, 490, 135, , 139
ESP10, 328, 369, 443, 478, 490, 137, , 141
ESP10, 326, 368, 441, 477, 489, 139, , 143
ESP10, 323, 366, 439, 475, 488, 141, , 145
ESP10, 322, 366, 438, 477, 488, 143, , 147
ESP10, 318, 364, 435, 475, 487, 145, , 149
ESP10, 309, 361, 431, 471, 486, 148, , 152
ESP10, 311, 364, 432, 472, 487, 150, , 154
ESP10, 321, 367, 437, 474, 488, 152, , 156
ESP10, 325, 370, 438, 475, 488, 154, , 158
ESP10, 328, 368, 441, 474, 488, 156, , 160
ESP10, 325, 364, 437, 471, 487, 158, , 162
ESP10, 329, 366, 438, 472, 486, 160, , 164
ESP10, 335, 373, 445, 476, 489, 162, , 166
ESP10, 339, 376, 451, 479, 491, 164, , 168
ESP10, 345, 383, 456, 483, 493, 166, , 170
ESP10, 350, 386, 458, 483, 493, 169, , 173
ESP10, 348, 385, 457, 483, 493, 171, , 175
ESP10, 346, 384, 458, 484, 492, 173, , 177
ESP10, 345, 385, 456, 483, 492, 175, , 179
ESP10, 345, 384, 454, 482, 492, 177, , 181
ESP10, 352, 389, 458, 484, 494, 179, , 183
ESP10, 353, 392, 459, 484, 494, 181, , 185
ESP10, 354, 392, 458, 484, 494, 183, , 187
ESP10, 354, 395, 458, 484, 494, 185, , 189
ESP10, 352, 394, 456, 484, 494, 187, , 191
ESP10, 353, 397, 457, 483, 494, 189, , 193
ESP10, 359, 396, 456, 482, 494, 192, , 196
ESP10, 357, 391, 452, 480, 493, 194, , 198
ESP10, 361, 391, 454, 480, 493, 196, , 200
ESP10, 365, 396, 458, 482, 494, 198, , 202
ESP10, 359, 390, 456, 481, 493, 200, , 204
ESP10, 361, 391, 459, 481, 495, 202, , 206
ESP10, 367, 390, 454, 480, 495, 204, , 208
ESP10, 374, 393, 459, 484, 495, 206, , 210
ESP10, 371, 392, 456, 482, 495, 208, , 212
ESP10, 377, 395, 462, 484, 495, 210, , 214
ESP10, 379, 395, 463, 483, 495, 212, , 216
ESP10, 376, 396, 461, 481, 495, 215, , 219
ESP10, 371, 396, 460, 479, 494, 217, , 221
ESP10, 362, 389, 453, 474, 491, 219, , 223
ESP10, 357, 384, 450, 472, 490, 221, , 225
ESP10, 357, 386, 450, 472, 489, 223, , 227
ESP10, 362, 390, 454, 474, 491, 225, , 229
ESP10, 355, 387, 449, 471, 489, 227, , 231
ESP10, 348, 382, 443, 470, 487, 229, , 233
ESP10, 349, 383, 445, 470, 488, 231, , 235
ESP10, 346, 380, 442, 469, 486, 233, , 237
ESP10, 347, 383, 443, 468, 486, 236, , 240
ESP10, 358, 392, 452, 473, 489, 238, , 242
ESP10, 353, 387, 448, 473, 487, 240, , 244
ESP10, 359, 389, 454, 473, 489, 242, , 246
ESP10, 365, 391, 456, 475, 491, 244, , 248
ESP10, 363, 389, 455, 473, 491, 246, , 250
ESP10, 370, 394, 458, 477, 493, 248, , 252
ESP10, 370, 395, 457, 479, 494, 250, , 254
ESP10, 377, 398, 460, 482, 495, 252, , 256
ESP10, 376, 399, 458, 483, 495, 254, , 258
ESP10, 376, 403, 459, 483, 494, 256, , 260
ESP10, 369, 397, 452, 480, 493, 259, , 263
ESP10, 377, 401, 455, 482, 494, 261, , 265
ESP10, 377, 402, 456, 482, 493, 263, , 267
ESP10, 375, 398, 454, 480, 492, 265, , 269
ESP10, 375, 406, 455, 477, 491, 267, , 271
ESP10, 377, 409, 461, 478, 492, 269, , 273
ESP10, 379, 410, 461, 479, 493, 271, , 275
ESP10, 381, 412, 461, 479, 494, 273, , 277
ESP10, 379, 411, 460, 477, 493, 275, , 279
ESP10, 380, 415, 461, 478, 493, 277, , 281
ESP10, 383, 417, 463, 479, 493, 279, , 283
ESP10, 384, 420, 465, 479, 493, 282, , 286
ESP10, 384, 420, 465, 479, 493, 284, , 288
ESP10, 387, 421, 467, 479, 494, 286, , 290
ESP10, 388, 421, 468, 480, 494, 288, , 292
ESP10, 389, 423, 468, 481, 494, 290, , 294
ESP10, 392, 426, 470, 484, 497, 292, , 296
ESP10, 392, 427, 470, 481, 495, 294, , 298
ESP10, 393, 427, 470, 482, 496, 296, , 300
ESP10, 393, 427, 471, 482, 496, 298, , 302
ESP10, 395, 427, 473, 485, 496, 300, , 304
ESP10, 395, 427, 473, 485, 497, 303, , 307
ESP10, 395, 427, 474, 486, 497, 305, , 309
ESP10, 395, 428, 474, 486, 497, 307, , 311
ESP10, 395, 428, 475, 486, 498, 309, , 313
ESP10, 395, 431, 475, 486, 498, 311, , 315
ESP10, 396, 432, 475, 486, 498, 313, , 317
ESP10, 395, 433, 475, 485, 498, 315, , 319
ESP10, 403, 437, 477, 490, 500, 317, , 321
ESP10, 404, 441, 478, 490, 500, 319, , 323
ESP10, 405, 442, 478, 490, 501, 321, , 325
ESP10, 406, 441, 478, 490, 501, 323, , 327
ESP10, 407, 441, 478, 490, 501, 326, , 330
ESP10, 401, 438, 477, 489, 500, 328, , 332
ESP10, 401, 438, 474, 488, 500, 330, , 334
ESP10, 411, 445, 479, 494, 504, 332, , 336
ESP10, 415, 447, 483, 496, 505, 334, , 338
ESP10, 416, 445, 482, 495, 504, 336, , 340
ESP10, 414, 444, 483, 495, 503, 338, , 342
ESP10, 412, 444, 482, 494, 502, 340, , 344
ESP10, 407, 441, 480, 490, 500, 342, , 346
ESP10, 408, 442, 481, 491, 502, 344, , 348
ESP10, 411, 447, 486, 495, 506, 346, , 350
ESP10, 412, 448, 486, 497, 506, 349, , 353
ESP10, 417, 451, 488, 498, 508, 351, , 355
ESP10, 417, 451, 487, 498, 507, 353, , 357
ESP10, 413, 446, 485, 496, 505, 355, , 359
ESP10, 408, 440, 483, 494, 503, 357, , 361
ESP10, 408, 440, 482, 493, 502, 359, , 363
ESP10, 413, 444, 485, 495, 503, 361, , 365
ESP10, 414, 446, 486, 496, 505, 363, , 367
ESP10, 413, 448, 487, 497, 505, 365, , 369
ESP10, 421, 452, 489, 498, 506, 367, , 371
ESP10, 422, 452, 488, 497, 505, 370, , 374
ESP10, 418, 452, 486, 496, 504, 372, , 376
ESP10, 420, 457, 487, 495, 503, 374, , 378
ESP10, 415, 447, 483, 491, 500, 376, , 380
ESP10, 407, 439, 478, 487, 496, 378, , 382
ESP10, 402, 435, 477, 485, 497, 380, , 384
ESP10, 403, 436, 477, 486, 496, 382, , 386
ESP10, 408, 440, 478, 488, 497, 384, , 388
ESP10, 405, 438, 476, 486, 495, 386, , 390
ESP10, 418, 453, 485, 493, 503, 388, , 392
ESP10, 445, 472, 495, 504, 511, 390, , 394
ESP10, 446, 470, 494, 503, 511, 393, , 397
ESP10, 453, 473, 496, 505, 512, 395, , 399
ESP10, 456, 477, 498, 506, 513, 397, , 401
ESP10, 456, 477, 498, 506, 513, 399, , 403
ESP10, 456, 477, 499, 506, 514, 401, , 405
ESP10, 457, 478, 500, 506, 514, 403, , 407
ESP10, 458, 478, 500, 506, 515, 405, , 409
ESP10, 459, 478, 500, 507, 515, 407, , 411
ESP10, 458, 479, 500, 507, 515, 409, , 413
ESP10, 459, 482, 502, 508, 515, 411, , 415
ESP10, 460, 483, 502, 509, 515, 413, , 417
ESP10, 465, 484, 502, 509, 515, 416, , 420
ESP10, 467, 483, 503, 510, 515, 418, , 422
ESP10, 469, 486, 503, 510, 515, 420, , 424
ESP10, 474, 491, 506, 512, 515, 422, , 426
ESP10, 476, 493, 506, 514, 515, 424, , 428
ESP10, 477, 494, 505, 514, 516, 426, , 430
ESP10, 479, 494, 506, 514, 516, 428, , 432
ESP10, 480, 493, 508, 514, 516, 430, , 434
ESP10, 473, 488, 503, 512, 514, 432, , 436
ESP10, 472, 488, 501, 509, 511, 434, , 438
ESP10, 470, 488, 499, 505, 507, 437, , 441
ESP10, 476, 493, 504, 510, 512, 439, , 443
ESP10, 472, 488, 499, 505, 506, 441, , 445
ESP10, 472, 488, 499, 504, 506, 443, , 447
ESP10, 476, 494, 504, 508, 509, 445, , 449
ESP10, 480, 496, 506, 509, 511, 447, , 451
ESP10, 476, 493, 504, 507, 508, 449, , 453
ESP10, 467, 481, 494, 499, 501, 451, , 455
ESP10, 477, 489, 501, 505, 508, 453, , 457
ESP10, 471, 483, 496, 502, 503, 455, , 459
ESP10, 470, 483, 496, 501, 503, 457, , 461
ESP10, 472, 486, 498, 504, 505, 460, , 464
ESP10, 477, 491, 503, 507, 508, 462, , 466
ESP10, 456, 470, 483, 488, 490, 464, , 468
ESP10, 443, 457, 470, 476, 479, 466, , 470
ESP10, 443, 462, 472, 478, 480, 468, , 472
ESP10, 451, 471, 479, 486, 488, 470, , 474
ESP10, 449, 470, 479, 485, 487, 472, , 476
ESP10, 452, 477, 487, 493, 494, 474, , 478
ESP10, 456, 477, 490, 494, 495, 476, , 480
ESP10, 484, 500, 508, 510, 511, 478, , 482
ESP10, 481, 497, 504, 507, 508, 480, , 484
ESP10, 481, 498, 508, 510, 511, 483, , 487
ESP10, 480, 501, 509, 511, 512, 485, , 489
ESP10, 485, 504, 509, 511, 511, 487, , 491
ESP10, 483, 500, 507, 508, 509, 489, , 493
ESP10, 489, 506, 510, 511, 512, 491, , 495
ESP10, 493, 508, 511, 513, 513, 493, , 497
ESP10, 498, 512, 514, 514, 515, 495, , 499
ESP10, 500, 513, 515, 516, 517, 497, , 501
ESP10, 503, 514, 516, 517, 517, 499, , 503
ESP10, 500, 514, 516, 517, 517, 501, , 505
ESP10, 493, 510, 514, 515, 516, 504, , 508
ESP10, 506, 514, 516, 517, 517, 506, , 510
ESP10, 508, 514, 516, 517, 517, 508, , 512
ESP10, 507, 514, 516, 517, 517, 510, , 514
ESP10, 511, 515, 516, 517, 517, 512, , 516
ESP10, 512, 515, 516, 517, 517, 514, , 518
ESP10, 513, 515, 516, 517, 517, 516, , 520
ESP10, 514, 515, 516, 517, 517, 518, , 522
ESP10, 514, 515, 516, 517, 518, 520, , 524
ESP10, 514, 515, 516, 517, 518, 522, , 526
ESP10, 515, 515, 516, 517, 517, 524, , 528
ESP10, 514, 515, 516, 517, 517, 527, , 531
ESP10, 514, 515, 516, 517, 517, 529, , 533
ESP10, 514, 515, 516, 517, 517, 531, , 535
ESP10, 514, 515, 516, 517, 517, 533, , 537
ESP10, 514, 515, 516, 517, 517, 535, , 539
ESP10, 514, 515, 516, 517, 517, 537, , 541
ESP10, 514, 515, 516, 517, 517, 539, , 543
ESP10, 514, 515, 516, 517, 517, 541, , 545
ESP10, 514, 515, 516, 517, 517, 543, , 547
ESP10, 514, 515, 516, 517, 517, 545, , 549
ESP10, 515, 516, 516, 517, 517, 547, , 551
ESP10, 515, 516, 516, 517, 517, 550, , 554
ESP10, 514, 516, 516, 517, 517, 552, , 556
ESP10, 514, 516, 516, 517, 517, 554, , 558
ESP10, 514, 515, 516, 517, 517, 556, , 560
ESP10, 514, 515, 516, 517, 517, 558, , 562
ESP10, 514, 515, 516, 516, 517, 560, , 564
ESP10, 513, 514, 515, 516, 516, 562, , 566
ESP10, 514, 515, 516, 516, 517, 564, , 568
ESP10, 514, 515, 516, 516, 517, 566, , 570
ESP10, 515, 515, 516, 516, 517, 568, , 572
ESP10, 515, 515, 516, 517, 517, 571, , 575
ESP10, 515, 515, 516, 517, 517, 573, , 577
ESP10, 515, 516, 516, 517, 517, 575, , 579
ESP10, 515, 515, 516, 516, 517, 577, , 581
ESP10, 515, 515, 516, 516, 517, 579, , 583
ESP10, 515, 515, 516, 516, 517, 581, , 585
ESP10, 515, 515, 516, 516, 517, 583, , 587
ESP10, 514, 515, 516, 516, 516, 585, , 589
ESP10, 514, 515, 516, 516, 516, 587, , 591
ESP10, 515, 515, 516, 516, 517, 589, , 593
ESP10, 515, 515, 516, 516, 516, 591, , 595
ESP10, 514, 515, 515, 516, 516, 594, , 598
ESP10, 514, 515, 516, 516, 516, 596, , 600
ESP10, 514, 515, 516, 516, 516, 598, , 602
ESP10, 514, 515, 515, 516, 516, 600, , 604
ESP10, 514, 514, 515, 515, 516, 602, , 606
ESP10, 514, 514, 515, 515, 516, 604, , 608
ESP10, 513, 514, 515, 515, 515, 606, , 610
ESP10, 513, 514, 515, 515, 515, 608, , 612
ESP10, 513, 514, 514, 515, 515, 610, , 614
ESP10, 514, 514, 515, 515, 516, 612, , 616
ESP10, 512, 512, 513, 513, 513, 614, , 618
ESP10, 512, 512, 513, 513, 514, 617, , 621
ESP10, 512, 512, 513, 513, 514, 619, , 623
ESP10, 512, 512, 513, 513, 514, 621, , 625
ESP10, 512, 512, 513, 513, 513, 623, , 627
ESP10, 511, 512, 512, 513, 513, 625, , 629
ESP10, 511, 512, 512, 513, 513, 627, , 631
ESP10, 505, 505, 506, 506, 507, 629, , 633
ESP10, 505, 505, 506, 506, 507, 631, , 635
ESP10, 505, 506, 506, 506, 507, 633, , 637
ESP10, 506, 506, 507, 507, 508, 635, , 639
ESP10, 506, 506, 507, 507, 507, 638, , 642
ESP10, 505, 506, 506, 507, 507, 640, , 644
ESP10, 506, 506, 506, 507, 507, 642, , 646
ESP10, 505, 506, 506, 507, 507, 644, , 648
ESP10, 505, 506, 506, 507, 507, 646, , 650
ESP10, 505, 506, 506, 507, 507, 648, , 652
ESP10, 505, 505, 506, 506, 506, 650, , 654
ESP10, 505, 506, 506, 507, 507, 652, , 656
ESP10, 505, 505, 506, 506, 507, 654, , 658
ESP10, 505, 506, 506, 507, 507, 656, , 660
ESP10, 505, 505, 506, 506, 507, 658, , 662
ESP10, 505, 505, 506, 506, 506, 661, , 665
ESP10, 505, 505, 506, 506, 506, 663, , 667
ESP10, 505, 505, 506, 506, 506, 665, , 669
ESP10, 505, 505, 506, 506, 506, 667, , 671
ESP10, 505, 505, 505, 506, 506, 669, , 673
ESP10, 504, 505, 505, 506, 506, 671, , 675
ESP10, 504, 505, 505, 506, 506, 673, , 677
ESP10, 505, 505, 506, 506, 506, 675, , 679
ESP10, 505, 505, 506, 506, 506, 677, , 681
ESP10, 505, 505, 506, 506, 506, 679, , 683
ESP10, 505, 505, 506, 506, 506, 681, , 685
ESP10, 505, 505, 506, 506, 506, 684, , 688
ESP10, 505, 505, 506, 506, 506, 686, , 690
ESP10, 505, 505, 506, 506, 506, 688, , 692
ESP10, 505, 505, 506, 506, 506, 690, , 694
ESP10, 505, 505, 506, 506, 506, 692, , 696
ESP10, 505, 505, 506, 506, 506, 694, , 698
ESP10, 505, 506, 506, 506, 507, 696, , 700
ESP10, 505, 506, 506, 506, 507, 698, , 702
ESP10, 505, 506, 506, 506, 507, 700, , 704
ESP10, 505, 506, 506, 506, 506, 702, , 706
ESP10, 505, 506, 506, 506, 506, 705, , 709
ESP10, 505, 506, 506, 506, 506, 707, , 711
ESP10, 505, 506, 506, 506, 506, 709, , 713
ESP10, 505, 506, 506, 506, 506, 711, , 715
ESP10, 505, 506, 506, 506, 506, 713, , 717
ESP10, 505, 505, 506, 506, 506, 715, , 719
ESP10, 505, 505, 506, 506, 506, 717, , 721
ESP10, 505, 505, 506, 506, 506, 719, , 723
ESP10, 505, 505, 506, 506, 506, 721, , 725
ESP10, 505, 505, 506, 506, 506, 723, , 727
ESP10, 505, 505, 506, 506, 506, 725, , 729
ESP10, 505, 505, 506, 506, 506, 728, , 732
ESP10, 505, 505, 506, 506, 506, 730, , 734
ESP10, 505, 506, 506, 506, 506, 732, , 736
ESP10, 505, 506, 506, 506, 506, 734, , 738
Max Scale
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Show Min/Max Ensemble Volume
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/OWYO3W_SQIN.ESPF10.csv
OWYO3W_SQIN.ESPF0.csv|2026-08-15
OWYO3W_SQIN.ESPF10.csv|2026-08-15
OWYO3W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
OWYHEE - OWYHEE DAM
(
OWYO3
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
87
251
75
704
336
APR-JUL
72
232
75
664
307
APR-AUG
78
243
76
686
321
JAN-SEP
158
409
71
1255
575
JAN-JUL
146
388
71
1199
547
OCT-SEP
198
449
70
1339
641
Move the mouse over the desired "Forecast Period" to display a graph.
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
Overlay
ESP10
Data Files
/chpsesp/ensemble/watersupply/OWYO3W_SQIN.ESPF10.csv
OWYO3W_SQIN.ESPF0.csv|2026-08-15
OWYO3W_SQIN.ESPF10.csv|2026-08-15
OWYO3W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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