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Archive:
Water Year
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OWYHEE - WILDHORSE DAM
(
WDHN2
)
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
-4
-4
-4
16
APR-JUL
-4
-4
-4
17
APR-AUG
-4
-4
-4
16
JAN-SEP
-1
-1
-1
24
JAN-JUL
-1
-1
-1
25
OCT-SEP
-1
-1
-0
25
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
-4
-4
-4
16
APR-JUL
-4
-4
-4
17
APR-AUG
-4
-4
-4
16
JAN-SEP
-1
-1
-1
24
JAN-JUL
-1
-1
-1
25
OCT-SEP
-1
-1
-0
25
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
-4
-4
-4
16
APR-JUL
-4
-4
-4
17
APR-AUG
-4
-4
-4
16
JAN-SEP
-1
-1
-1
24
JAN-JUL
-1
-1
-1
25
OCT-SEP
-1
-1
-0
25
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 266, 339, 401, 453, 480, 70, , 74
ESP10, 268, 339, 402, 455, 480, 72, , 76
ESP10, 266, 337, 398, 455, 477, 74, , 78
ESP10, 265, 336, 396, 455, 477, 76, , 80
ESP10, 264, 336, 396, 455, 477, 78, , 82
ESP10, 261, 334, 393, 449, 471, 81, , 85
ESP10, 264, 336, 396, 453, 475, 83, , 87
ESP10, 263, 336, 396, 453, 476, 85, , 89
ESP10, 263, 335, 395, 451, 475, 87, , 91
ESP10, 255, 330, 388, 438, 461, 89, , 93
ESP10, 250, 326, 384, 432, 456, 91, , 95
ESP10, 256, 330, 387, 438, 460, 93, , 97
ESP10, 259, 330, 387, 438, 461, 95, , 99
ESP10, 264, 332, 389, 444, 464, 97, , 101
ESP10, 259, 327, 385, 435, 458, 99, , 103
ESP10, 252, 321, 382, 428, 454, 102, , 106
ESP10, 251, 320, 382, 427, 455, 104, , 108
ESP10, 246, 316, 378, 423, 452, 106, , 110
ESP10, 257, 324, 385, 432, 456, 108, , 112
ESP10, 258, 324, 386, 433, 457, 110, , 114
ESP10, 258, 324, 383, 429, 455, 112, , 116
ESP10, 264, 335, 389, 437, 459, 114, , 118
ESP10, 265, 338, 390, 440, 459, 116, , 120
ESP10, 262, 333, 387, 435, 458, 118, , 122
ESP10, 257, 329, 385, 431, 456, 120, , 124
ESP10, 257, 328, 385, 432, 456, 122, , 126
ESP10, 258, 329, 385, 437, 457, 125, , 129
ESP10, 258, 330, 386, 436, 460, 127, , 131
ESP10, 257, 334, 386, 435, 458, 129, , 133
ESP10, 252, 323, 384, 429, 456, 131, , 135
ESP10, 254, 328, 386, 435, 459, 133, , 137
ESP10, 256, 331, 387, 436, 460, 135, , 139
ESP10, 256, 331, 387, 436, 461, 137, , 141
ESP10, 252, 323, 383, 436, 457, 139, , 143
ESP10, 253, 324, 383, 436, 458, 141, , 145
ESP10, 253, 322, 383, 436, 458, 143, , 147
ESP10, 247, 315, 377, 431, 456, 145, , 149
ESP10, 233, 302, 366, 425, 452, 148, , 152
ESP10, 232, 302, 365, 426, 452, 150, , 154
ESP10, 245, 315, 376, 434, 456, 152, , 156
ESP10, 253, 318, 382, 435, 457, 154, , 158
ESP10, 249, 323, 382, 432, 455, 156, , 160
ESP10, 251, 323, 381, 429, 455, 158, , 162
ESP10, 269, 326, 382, 431, 457, 160, , 164
ESP10, 281, 338, 391, 441, 467, 162, , 166
ESP10, 291, 350, 399, 450, 474, 164, , 168
ESP10, 298, 359, 406, 457, 478, 166, , 170
ESP10, 303, 358, 406, 457, 478, 169, , 173
ESP10, 302, 357, 404, 454, 478, 171, , 175
ESP10, 301, 355, 409, 450, 477, 173, , 177
ESP10, 299, 352, 408, 450, 477, 175, , 179
ESP10, 298, 350, 405, 449, 478, 177, , 181
ESP10, 305, 363, 413, 455, 482, 179, , 183
ESP10, 311, 366, 417, 459, 483, 181, , 185
ESP10, 310, 363, 416, 465, 483, 183, , 187
ESP10, 314, 365, 416, 465, 482, 185, , 189
ESP10, 310, 360, 416, 461, 480, 187, , 191
ESP10, 310, 362, 417, 460, 480, 189, , 193
ESP10, 307, 359, 415, 458, 478, 192, , 196
ESP10, 303, 354, 408, 458, 474, 194, , 198
ESP10, 303, 354, 407, 458, 473, 196, , 200
ESP10, 310, 363, 415, 463, 478, 198, , 202
ESP10, 307, 359, 412, 458, 477, 200, , 204
ESP10, 317, 365, 414, 460, 480, 202, , 206
ESP10, 318, 366, 410, 454, 479, 204, , 208
ESP10, 328, 373, 414, 460, 483, 206, , 210
ESP10, 325, 374, 412, 458, 482, 208, , 212
ESP10, 329, 379, 415, 461, 484, 210, , 214
ESP10, 331, 381, 413, 461, 483, 212, , 216
ESP10, 331, 380, 412, 459, 481, 215, , 219
ESP10, 326, 378, 412, 455, 483, 217, , 221
ESP10, 311, 374, 408, 449, 484, 219, , 223
ESP10, 307, 373, 406, 447, 484, 221, , 225
ESP10, 305, 371, 405, 445, 480, 223, , 227
ESP10, 321, 379, 411, 447, 484, 225, , 229
ESP10, 320, 376, 407, 444, 478, 227, , 231
ESP10, 314, 371, 407, 439, 470, 229, , 233
ESP10, 315, 373, 407, 440, 471, 231, , 235
ESP10, 318, 376, 407, 438, 469, 233, , 237
ESP10, 318, 376, 408, 437, 468, 236, , 240
ESP10, 326, 383, 414, 446, 482, 238, , 242
ESP10, 324, 383, 411, 444, 477, 240, , 244
ESP10, 330, 383, 411, 447, 477, 242, , 246
ESP10, 336, 384, 414, 451, 480, 244, , 248
ESP10, 337, 385, 416, 452, 481, 246, , 250
ESP10, 337, 385, 419, 454, 482, 248, , 252
ESP10, 338, 385, 421, 454, 482, 250, , 254
ESP10, 344, 390, 426, 461, 486, 252, , 256
ESP10, 340, 387, 423, 461, 484, 254, , 258
ESP10, 343, 388, 426, 461, 485, 256, , 260
ESP10, 336, 382, 421, 453, 480, 259, , 263
ESP10, 348, 384, 425, 455, 482, 261, , 265
ESP10, 349, 384, 425, 454, 481, 263, , 267
ESP10, 346, 383, 424, 453, 479, 265, , 269
ESP10, 350, 384, 425, 456, 481, 267, , 271
ESP10, 353, 384, 425, 463, 482, 269, , 273
ESP10, 353, 385, 425, 463, 482, 271, , 275
ESP10, 356, 389, 426, 464, 483, 273, , 277
ESP10, 354, 388, 422, 461, 478, 275, , 279
ESP10, 355, 392, 425, 461, 479, 277, , 281
ESP10, 356, 397, 427, 462, 479, 279, , 283
ESP10, 357, 399, 428, 462, 479, 282, , 286
ESP10, 357, 401, 429, 463, 479, 284, , 288
ESP10, 357, 403, 432, 463, 483, 286, , 290
ESP10, 353, 402, 428, 460, 478, 288, , 292
ESP10, 353, 405, 430, 463, 479, 290, , 294
ESP10, 354, 404, 430, 463, 479, 292, , 296
ESP10, 357, 405, 431, 466, 481, 294, , 298
ESP10, 359, 405, 432, 468, 482, 296, , 300
ESP10, 361, 405, 433, 472, 483, 298, , 302
ESP10, 361, 405, 435, 473, 487, 300, , 304
ESP10, 364, 408, 436, 474, 487, 303, , 307
ESP10, 366, 409, 438, 476, 487, 305, , 309
ESP10, 367, 410, 438, 477, 487, 307, , 311
ESP10, 369, 412, 438, 479, 488, 309, , 313
ESP10, 369, 414, 440, 480, 488, 311, , 315
ESP10, 371, 416, 442, 482, 488, 313, , 317
ESP10, 371, 416, 443, 481, 488, 315, , 319
ESP10, 361, 408, 435, 475, 482, 317, , 321
ESP10, 361, 410, 436, 476, 484, 319, , 323
ESP10, 362, 412, 439, 478, 486, 321, , 325
ESP10, 362, 413, 441, 478, 487, 323, , 327
ESP10, 361, 413, 443, 478, 487, 326, , 330
ESP10, 358, 412, 440, 474, 485, 328, , 332
ESP10, 356, 411, 441, 471, 483, 330, , 334
ESP10, 359, 413, 441, 472, 486, 332, , 336
ESP10, 363, 415, 444, 476, 488, 334, , 338
ESP10, 361, 414, 443, 474, 488, 336, , 340
ESP10, 357, 413, 440, 475, 487, 338, , 342
ESP10, 353, 411, 438, 472, 484, 340, , 344
ESP10, 353, 411, 439, 471, 483, 342, , 346
ESP10, 352, 411, 439, 471, 484, 344, , 348
ESP10, 348, 408, 436, 467, 481, 346, , 350
ESP10, 351, 412, 440, 469, 485, 349, , 353
ESP10, 356, 417, 445, 475, 488, 351, , 355
ESP10, 357, 418, 447, 475, 488, 353, , 357
ESP10, 355, 415, 444, 470, 486, 355, , 359
ESP10, 349, 410, 440, 468, 480, 357, , 361
ESP10, 353, 412, 442, 473, 485, 359, , 363
ESP10, 353, 413, 442, 475, 485, 361, , 365
ESP10, 356, 414, 446, 477, 487, 363, , 367
ESP10, 355, 413, 444, 476, 486, 365, , 369
ESP10, 362, 416, 448, 482, 488, 367, , 371
ESP10, 360, 416, 446, 479, 488, 370, , 374
ESP10, 356, 413, 446, 475, 487, 372, , 376
ESP10, 364, 417, 452, 478, 490, 374, , 378
ESP10, 349, 405, 439, 467, 482, 376, , 380
ESP10, 347, 403, 437, 464, 480, 378, , 382
ESP10, 344, 400, 433, 463, 477, 380, , 384
ESP10, 345, 403, 435, 466, 478, 382, , 386
ESP10, 347, 406, 439, 467, 480, 384, , 388
ESP10, 348, 407, 440, 468, 481, 386, , 390
ESP10, 348, 408, 440, 467, 479, 388, , 392
ESP10, 348, 411, 437, 465, 478, 390, , 394
ESP10, 355, 416, 442, 468, 480, 393, , 397
ESP10, 358, 417, 445, 468, 481, 395, , 399
ESP10, 361, 423, 449, 471, 482, 397, , 401
ESP10, 361, 426, 448, 472, 483, 399, , 403
ESP10, 365, 429, 447, 472, 483, 401, , 405
ESP10, 370, 429, 454, 473, 483, 403, , 407
ESP10, 377, 429, 454, 474, 483, 405, , 409
ESP10, 387, 430, 456, 475, 484, 407, , 411
ESP10, 392, 431, 455, 476, 485, 409, , 413
ESP10, 394, 434, 458, 475, 486, 411, , 415
ESP10, 399, 440, 459, 479, 487, 413, , 417
ESP10, 402, 440, 463, 480, 489, 416, , 420
ESP10, 402, 444, 463, 481, 489, 418, , 422
ESP10, 410, 446, 469, 481, 489, 420, , 424
ESP10, 413, 447, 472, 483, 489, 422, , 426
ESP10, 415, 449, 473, 485, 489, 424, , 428
ESP10, 418, 448, 473, 486, 489, 426, , 430
ESP10, 420, 450, 474, 487, 489, 428, , 432
ESP10, 419, 449, 475, 487, 489, 430, , 434
ESP10, 402, 437, 459, 474, 482, 432, , 436
ESP10, 407, 441, 461, 476, 484, 434, , 438
ESP10, 409, 445, 461, 476, 484, 437, , 441
ESP10, 416, 452, 471, 482, 489, 439, , 443
ESP10, 415, 445, 467, 477, 483, 441, , 445
ESP10, 416, 445, 467, 478, 483, 443, , 447
ESP10, 423, 454, 474, 485, 488, 445, , 449
ESP10, 420, 452, 470, 482, 485, 447, , 451
ESP10, 421, 456, 473, 483, 485, 449, , 453
ESP10, 407, 444, 460, 474, 478, 451, , 455
ESP10, 406, 443, 459, 474, 478, 453, , 457
ESP10, 399, 437, 452, 467, 472, 455, , 459
ESP10, 401, 434, 448, 466, 469, 457, , 461
ESP10, 401, 436, 448, 466, 469, 460, , 464
ESP10, 409, 443, 457, 470, 473, 462, , 466
ESP10, 405, 437, 449, 462, 465, 464, , 468
ESP10, 429, 460, 473, 484, 487, 466, , 470
ESP10, 434, 458, 475, 484, 487, 468, , 472
ESP10, 434, 459, 475, 485, 488, 470, , 474
ESP10, 434, 456, 474, 483, 485, 472, , 476
ESP10, 436, 460, 474, 485, 487, 474, , 478
ESP10, 433, 457, 471, 483, 484, 476, , 480
ESP10, 441, 463, 479, 488, 489, 478, , 482
ESP10, 442, 465, 486, 489, 490, 480, , 484
ESP10, 436, 466, 482, 488, 489, 483, , 487
ESP10, 440, 471, 487, 489, 490, 485, , 489
ESP10, 445, 475, 488, 490, 490, 487, , 491
ESP10, 439, 472, 486, 490, 490, 489, , 493
ESP10, 449, 476, 488, 490, 491, 491, , 495
ESP10, 450, 476, 487, 490, 491, 493, , 497
ESP10, 458, 483, 488, 490, 491, 495, , 499
ESP10, 456, 484, 489, 490, 491, 497, , 501
ESP10, 461, 486, 489, 490, 491, 499, , 503
ESP10, 464, 487, 490, 491, 492, 501, , 505
ESP10, 448, 474, 488, 490, 491, 504, , 508
ESP10, 468, 488, 490, 491, 492, 506, , 510
ESP10, 469, 488, 490, 492, 492, 508, , 512
ESP10, 467, 488, 490, 492, 492, 510, , 514
ESP10, 475, 489, 491, 492, 493, 512, , 516
ESP10, 477, 489, 491, 492, 493, 514, , 518
ESP10, 481, 490, 491, 492, 493, 516, , 520
ESP10, 484, 491, 492, 493, 493, 518, , 522
ESP10, 486, 491, 493, 493, 494, 520, , 524
ESP10, 486, 491, 493, 493, 494, 522, , 526
ESP10, 490, 492, 493, 494, 494, 524, , 528
ESP10, 491, 491, 493, 494, 494, 527, , 531
ESP10, 491, 492, 494, 494, 495, 529, , 533
ESP10, 491, 492, 494, 495, 495, 531, , 535
ESP10, 491, 492, 493, 494, 495, 533, , 537
ESP10, 491, 493, 494, 495, 495, 535, , 539
ESP10, 492, 494, 495, 496, 496, 537, , 541
ESP10, 493, 494, 495, 496, 497, 539, , 543
ESP10, 493, 494, 495, 496, 496, 541, , 545
ESP10, 493, 494, 495, 496, 496, 543, , 547
ESP10, 494, 495, 496, 497, 497, 545, , 549
ESP10, 495, 496, 497, 498, 498, 547, , 551
ESP10, 494, 495, 497, 497, 498, 550, , 554
ESP10, 494, 495, 497, 497, 497, 552, , 556
ESP10, 495, 496, 497, 498, 498, 554, , 558
ESP10, 495, 496, 497, 498, 498, 556, , 560
ESP10, 496, 497, 498, 499, 499, 558, , 562
ESP10, 496, 496, 498, 499, 499, 560, , 564
ESP10, 495, 496, 497, 498, 499, 562, , 566
ESP10, 496, 497, 498, 499, 500, 564, , 568
ESP10, 496, 497, 498, 499, 500, 566, , 570
ESP10, 497, 498, 499, 500, 500, 568, , 572
ESP10, 497, 498, 499, 500, 500, 571, , 575
ESP10, 497, 498, 500, 500, 501, 573, , 577
ESP10, 498, 499, 500, 500, 501, 575, , 579
ESP10, 498, 499, 500, 501, 501, 577, , 581
ESP10, 498, 499, 500, 500, 501, 579, , 583
ESP10, 498, 499, 500, 501, 501, 581, , 585
ESP10, 498, 499, 500, 501, 501, 583, , 587
ESP10, 498, 499, 500, 501, 501, 585, , 589
ESP10, 498, 500, 501, 501, 502, 587, , 591
ESP10, 499, 500, 501, 502, 502, 589, , 593
ESP10, 499, 500, 501, 502, 502, 591, , 595
ESP10, 499, 500, 502, 502, 502, 594, , 598
ESP10, 500, 501, 502, 502, 503, 596, , 600
ESP10, 500, 501, 502, 503, 503, 598, , 602
ESP10, 500, 501, 502, 503, 503, 600, , 604
ESP10, 500, 502, 503, 503, 503, 602, , 606
ESP10, 501, 502, 503, 503, 504, 604, , 608
ESP10, 501, 503, 503, 504, 504, 606, , 610
ESP10, 501, 503, 504, 504, 505, 608, , 612
ESP10, 502, 503, 504, 504, 505, 610, , 614
ESP10, 503, 504, 505, 505, 506, 612, , 616
ESP10, 503, 504, 505, 506, 506, 614, , 618
ESP10, 503, 505, 506, 506, 507, 617, , 621
ESP10, 504, 505, 506, 507, 507, 619, , 623
ESP10, 504, 506, 507, 507, 508, 621, , 625
ESP10, 505, 506, 507, 507, 508, 623, , 627
ESP10, 515, 516, 517, 517, 517, 625, , 629
ESP10, 515, 516, 517, 517, 517, 627, , 631
ESP10, 515, 516, 517, 517, 517, 629, , 633
ESP10, 505, 506, 507, 507, 508, 631, , 635
ESP10, 505, 506, 507, 507, 507, 633, , 637
ESP10, 505, 507, 507, 508, 508, 635, , 639
ESP10, 506, 507, 508, 508, 509, 638, , 642
ESP10, 506, 507, 508, 508, 509, 640, , 644
ESP10, 506, 507, 508, 508, 509, 642, , 646
ESP10, 506, 507, 508, 508, 509, 644, , 648
ESP10, 506, 508, 508, 508, 509, 646, , 650
ESP10, 507, 508, 508, 509, 509, 648, , 652
ESP10, 507, 508, 508, 509, 509, 650, , 654
ESP10, 507, 508, 508, 509, 509, 652, , 656
ESP10, 506, 507, 508, 508, 509, 654, , 658
ESP10, 507, 508, 509, 509, 509, 656, , 660
ESP10, 506, 508, 509, 509, 509, 658, , 662
ESP10, 507, 508, 509, 509, 509, 661, , 665
ESP10, 507, 508, 509, 509, 510, 663, , 667
ESP10, 508, 509, 509, 510, 510, 665, , 669
ESP10, 508, 509, 509, 510, 510, 667, , 671
ESP10, 508, 509, 509, 510, 510, 669, , 673
ESP10, 508, 509, 510, 510, 510, 671, , 675
ESP10, 509, 510, 510, 510, 511, 673, , 677
ESP10, 509, 510, 510, 511, 511, 675, , 679
ESP10, 509, 510, 510, 511, 511, 677, , 681
ESP10, 510, 510, 511, 511, 511, 679, , 683
ESP10, 509, 510, 510, 511, 511, 681, , 685
ESP10, 509, 510, 510, 511, 511, 684, , 688
ESP10, 509, 510, 511, 511, 512, 686, , 690
ESP10, 509, 510, 511, 511, 512, 688, , 692
ESP10, 510, 511, 511, 512, 512, 690, , 694
ESP10, 510, 511, 511, 512, 512, 692, , 696
ESP10, 510, 511, 511, 512, 512, 694, , 698
ESP10, 511, 512, 512, 513, 513, 696, , 700
ESP10, 511, 512, 512, 513, 513, 698, , 702
ESP10, 510, 511, 512, 512, 513, 700, , 704
ESP10, 511, 512, 513, 513, 513, 702, , 706
ESP10, 511, 512, 513, 513, 514, 705, , 709
ESP10, 512, 513, 514, 514, 514, 707, , 711
ESP10, 512, 513, 514, 514, 514, 709, , 713
ESP10, 512, 513, 514, 514, 514, 711, , 715
ESP10, 512, 513, 514, 514, 515, 713, , 717
ESP10, 513, 514, 514, 514, 515, 715, , 719
ESP10, 513, 514, 514, 515, 515, 717, , 721
ESP10, 513, 514, 515, 515, 515, 719, , 723
ESP10, 513, 514, 515, 515, 515, 721, , 725
ESP10, 513, 514, 515, 515, 515, 723, , 727
ESP10, 513, 515, 515, 515, 515, 725, , 729
ESP10, 514, 515, 515, 515, 515, 728, , 732
ESP10, 514, 515, 515, 515, 515, 730, , 734
ESP10, 514, 515, 515, 515, 515, 732, , 736
ESP10, 514, 515, 515, 515, 515, 734, , 738
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/WDHN2W_SQIN.ESPF10.csv
WDHN2W_SQIN.ESPF0.csv|2026-08-15
WDHN2W_SQIN.ESPF10.csv|2026-08-15
WDHN2W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
OWYHEE - WILDHORSE DAM
(
WDHN2
)
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
3
17
107
47
16
APR-JUL
2
15
88
45
17
APR-AUG
3
16
99
46
16
JAN-SEP
4
19
79
65
24
JAN-JUL
4
18
72
63
25
OCT-SEP
5
20
78
67
25
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/WDHN2W_SQIN.ESPF10.csv
WDHN2W_SQIN.ESPF0.csv|2026-08-15
WDHN2W_SQIN.ESPF10.csv|2026-08-15
WDHN2W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
