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Archive:
Water Year
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TIETON - AT TIETON DAM
(
RIMW1
)
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
141
143
64
146
225
APR-JUL
115
115
60
115
191
APR-AUG
128
129
62
130
209
JAN-SEP
283
285
93
288
305
JAN-JUL
256
256
95
256
271
OCT-SEP
423
425
114
427
372
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
138
140
62
142
225
APR-JUL
115
115
60
115
191
APR-AUG
126
126
60
126
209
JAN-SEP
280
282
92
284
305
JAN-JUL
256
256
95
256
271
OCT-SEP
419
421
113
424
372
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
140
142
63
146
225
APR-JUL
115
115
60
115
191
APR-AUG
128
129
62
130
209
JAN-SEP
282
284
93
288
305
JAN-JUL
256
256
95
256
271
OCT-SEP
422
424
114
428
372
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 315, 358, 396, 436, 470, 70, , 74
ESP10, 314, 357, 395, 434, 469, 72, , 76
ESP10, 314, 357, 396, 435, 469, 74, , 78
ESP10, 314, 357, 396, 434, 469, 76, , 80
ESP10, 314, 357, 398, 434, 469, 78, , 82
ESP10, 314, 356, 398, 434, 469, 81, , 85
ESP10, 313, 355, 397, 431, 468, 83, , 87
ESP10, 315, 357, 398, 435, 469, 85, , 89
ESP10, 316, 357, 398, 437, 470, 87, , 91
ESP10, 314, 355, 397, 433, 469, 89, , 93
ESP10, 316, 356, 399, 435, 470, 91, , 95
ESP10, 316, 354, 398, 432, 471, 93, , 97
ESP10, 317, 354, 398, 431, 472, 95, , 99
ESP10, 318, 352, 397, 429, 473, 97, , 101
ESP10, 319, 350, 394, 426, 472, 99, , 103
ESP10, 308, 347, 386, 422, 469, 102, , 106
ESP10, 298, 339, 378, 416, 465, 104, , 108
ESP10, 304, 343, 385, 418, 467, 106, , 110
ESP10, 307, 345, 389, 420, 469, 108, , 112
ESP10, 311, 347, 390, 421, 471, 110, , 114
ESP10, 302, 334, 379, 409, 465, 112, , 116
ESP10, 311, 344, 389, 420, 471, 114, , 118
ESP10, 305, 338, 383, 414, 467, 116, , 120
ESP10, 311, 346, 390, 419, 469, 118, , 122
ESP10, 309, 345, 391, 418, 469, 120, , 124
ESP10, 302, 341, 382, 412, 466, 122, , 126
ESP10, 306, 342, 385, 418, 469, 125, , 129
ESP10, 307, 342, 388, 420, 471, 127, , 131
ESP10, 304, 340, 385, 416, 469, 129, , 133
ESP10, 289, 332, 374, 403, 459, 131, , 135
ESP10, 277, 324, 365, 394, 449, 133, , 137
ESP10, 279, 326, 368, 401, 451, 135, , 139
ESP10, 277, 324, 367, 399, 449, 137, , 141
ESP10, 293, 337, 378, 410, 461, 139, , 143
ESP10, 294, 336, 380, 410, 462, 141, , 145
ESP10, 298, 337, 384, 413, 465, 143, , 147
ESP10, 303, 338, 387, 414, 466, 145, , 149
ESP10, 298, 332, 386, 409, 462, 148, , 152
ESP10, 297, 328, 386, 409, 459, 150, , 154
ESP10, 299, 328, 389, 410, 459, 152, , 156
ESP10, 308, 334, 397, 416, 466, 154, , 158
ESP10, 317, 341, 400, 423, 472, 156, , 160
ESP10, 314, 336, 398, 419, 468, 158, , 162
ESP10, 322, 346, 408, 428, 474, 160, , 164
ESP10, 321, 346, 407, 426, 472, 162, , 166
ESP10, 322, 346, 406, 424, 471, 164, , 168
ESP10, 322, 343, 406, 422, 469, 166, , 170
ESP10, 328, 349, 415, 430, 473, 169, , 173
ESP10, 332, 346, 413, 426, 472, 171, , 175
ESP10, 333, 346, 414, 428, 472, 173, , 177
ESP10, 330, 346, 410, 429, 469, 175, , 179
ESP10, 328, 347, 408, 429, 468, 177, , 181
ESP10, 324, 346, 406, 426, 468, 179, , 183
ESP10, 331, 355, 413, 433, 473, 181, , 185
ESP10, 328, 356, 411, 432, 472, 183, , 187
ESP10, 332, 362, 414, 436, 476, 185, , 189
ESP10, 327, 357, 410, 430, 474, 187, , 191
ESP10, 330, 360, 409, 431, 477, 189, , 193
ESP10, 332, 364, 409, 436, 477, 192, , 196
ESP10, 312, 349, 393, 420, 463, 194, , 198
ESP10, 318, 356, 401, 429, 467, 196, , 200
ESP10, 328, 365, 410, 438, 476, 198, , 202
ESP10, 323, 358, 404, 433, 474, 200, , 204
ESP10, 307, 345, 388, 416, 462, 202, , 206
ESP10, 318, 359, 400, 428, 472, 204, , 208
ESP10, 307, 351, 391, 420, 463, 206, , 210
ESP10, 321, 364, 407, 435, 477, 208, , 212
ESP10, 316, 361, 407, 438, 476, 210, , 214
ESP10, 313, 363, 406, 437, 474, 212, , 216
ESP10, 297, 344, 388, 422, 456, 215, , 219
ESP10, 291, 337, 382, 418, 448, 217, , 221
ESP10, 287, 336, 379, 415, 446, 219, , 223
ESP10, 288, 337, 382, 418, 448, 221, , 225
ESP10, 292, 343, 388, 422, 452, 223, , 227
ESP10, 292, 343, 388, 422, 451, 225, , 229
ESP10, 299, 345, 391, 427, 452, 227, , 231
ESP10, 294, 337, 383, 421, 444, 229, , 233
ESP10, 294, 336, 381, 418, 440, 231, , 235
ESP10, 296, 344, 384, 421, 442, 233, , 237
ESP10, 289, 339, 376, 414, 438, 236, , 240
ESP10, 301, 351, 388, 424, 446, 238, , 242
ESP10, 303, 353, 389, 425, 446, 240, , 244
ESP10, 304, 351, 387, 423, 445, 242, , 246
ESP10, 306, 356, 390, 424, 449, 244, , 248
ESP10, 301, 354, 388, 421, 445, 246, , 250
ESP10, 294, 346, 382, 413, 436, 248, , 252
ESP10, 302, 351, 390, 420, 441, 250, , 254
ESP10, 301, 350, 386, 416, 437, 252, , 256
ESP10, 307, 353, 386, 418, 437, 254, , 258
ESP10, 307, 347, 381, 411, 431, 256, , 260
ESP10, 311, 350, 388, 415, 434, 259, , 263
ESP10, 312, 348, 386, 413, 432, 261, , 265
ESP10, 309, 345, 383, 408, 427, 263, , 267
ESP10, 306, 343, 382, 405, 423, 265, , 269
ESP10, 306, 342, 385, 406, 424, 267, , 271
ESP10, 307, 341, 383, 404, 421, 269, , 273
ESP10, 305, 343, 380, 400, 418, 271, , 275
ESP10, 311, 351, 382, 401, 421, 273, , 277
ESP10, 322, 358, 390, 408, 428, 275, , 279
ESP10, 324, 362, 392, 410, 429, 277, , 281
ESP10, 324, 365, 393, 410, 429, 279, , 283
ESP10, 324, 365, 392, 409, 429, 282, , 286
ESP10, 326, 366, 394, 412, 431, 284, , 288
ESP10, 329, 369, 393, 414, 433, 286, , 290
ESP10, 330, 373, 394, 414, 432, 288, , 292
ESP10, 327, 375, 390, 413, 428, 290, , 294
ESP10, 327, 368, 385, 408, 421, 292, , 296
ESP10, 333, 372, 390, 413, 425, 294, , 298
ESP10, 338, 374, 392, 413, 425, 296, , 300
ESP10, 342, 383, 398, 420, 430, 298, , 302
ESP10, 342, 380, 397, 417, 429, 300, , 304
ESP10, 345, 383, 404, 420, 435, 303, , 307
ESP10, 345, 381, 405, 422, 434, 305, , 309
ESP10, 349, 387, 411, 429, 441, 307, , 311
ESP10, 348, 386, 411, 427, 442, 309, , 313
ESP10, 346, 387, 409, 424, 442, 311, , 315
ESP10, 349, 393, 412, 428, 447, 313, , 317
ESP10, 347, 394, 412, 428, 447, 315, , 319
ESP10, 348, 396, 414, 429, 450, 317, , 321
ESP10, 350, 403, 417, 431, 458, 319, , 323
ESP10, 352, 403, 421, 432, 460, 321, , 325
ESP10, 349, 399, 417, 428, 456, 323, , 327
ESP10, 350, 396, 415, 426, 453, 326, , 330
ESP10, 349, 394, 415, 424, 449, 328, , 332
ESP10, 352, 394, 415, 425, 448, 330, , 334
ESP10, 352, 393, 413, 424, 446, 332, , 336
ESP10, 352, 391, 411, 423, 444, 334, , 338
ESP10, 359, 394, 413, 428, 447, 336, , 340
ESP10, 361, 392, 410, 428, 443, 338, , 342
ESP10, 358, 392, 408, 427, 441, 340, , 344
ESP10, 359, 393, 409, 429, 442, 342, , 346
ESP10, 359, 396, 411, 430, 442, 344, , 348
ESP10, 354, 387, 403, 423, 434, 346, , 350
ESP10, 360, 390, 404, 427, 436, 349, , 353
ESP10, 361, 388, 402, 426, 433, 351, , 355
ESP10, 358, 384, 400, 420, 428, 353, , 357
ESP10, 359, 382, 398, 419, 427, 355, , 359
ESP10, 366, 386, 404, 423, 434, 357, , 361
ESP10, 353, 373, 391, 410, 424, 359, , 363
ESP10, 357, 378, 397, 415, 432, 361, , 365
ESP10, 355, 375, 396, 411, 429, 363, , 367
ESP10, 361, 381, 401, 417, 433, 365, , 369
ESP10, 361, 387, 401, 417, 432, 367, , 371
ESP10, 367, 393, 407, 426, 438, 370, , 374
ESP10, 372, 398, 411, 431, 444, 372, , 376
ESP10, 374, 402, 416, 434, 447, 374, , 378
ESP10, 371, 402, 414, 431, 445, 376, , 380
ESP10, 369, 397, 412, 427, 441, 378, , 382
ESP10, 371, 395, 411, 425, 441, 380, , 384
ESP10, 369, 395, 410, 425, 440, 382, , 386
ESP10, 371, 397, 413, 428, 442, 384, , 388
ESP10, 371, 395, 412, 426, 440, 386, , 390
ESP10, 368, 390, 408, 421, 436, 388, , 392
ESP10, 356, 379, 399, 412, 425, 390, , 394
ESP10, 351, 378, 396, 408, 423, 393, , 397
ESP10, 347, 375, 393, 404, 421, 395, , 399
ESP10, 347, 372, 394, 401, 418, 397, , 401
ESP10, 348, 368, 391, 398, 414, 399, , 403
ESP10, 342, 363, 385, 392, 407, 401, , 405
ESP10, 344, 365, 387, 394, 409, 403, , 407
ESP10, 342, 363, 385, 394, 408, 405, , 409
ESP10, 338, 358, 379, 389, 402, 407, , 411
ESP10, 353, 374, 397, 408, 419, 409, , 413
ESP10, 364, 384, 405, 420, 429, 411, , 415
ESP10, 369, 386, 404, 419, 430, 413, , 417
ESP10, 367, 380, 401, 414, 426, 416, , 420
ESP10, 365, 374, 393, 408, 419, 418, , 422
ESP10, 367, 377, 396, 411, 421, 420, , 424
ESP10, 370, 381, 397, 413, 425, 422, , 426
ESP10, 375, 386, 398, 416, 426, 424, , 428
ESP10, 376, 386, 398, 417, 425, 426, , 430
ESP10, 379, 390, 402, 419, 427, 428, , 432
ESP10, 378, 390, 402, 417, 426, 430, , 434
ESP10, 373, 386, 396, 411, 420, 432, , 436
ESP10, 375, 387, 395, 410, 421, 434, , 438
ESP10, 379, 390, 402, 414, 427, 437, , 441
ESP10, 377, 387, 399, 412, 423, 439, , 443
ESP10, 379, 391, 403, 414, 425, 441, , 445
ESP10, 380, 394, 406, 415, 430, 443, , 447
ESP10, 379, 392, 405, 414, 431, 445, , 449
ESP10, 382, 395, 407, 417, 433, 447, , 451
ESP10, 382, 398, 410, 421, 435, 449, , 453
ESP10, 384, 400, 412, 423, 436, 451, , 455
ESP10, 389, 402, 415, 426, 437, 453, , 457
ESP10, 390, 402, 415, 427, 437, 455, , 459
ESP10, 389, 403, 414, 427, 438, 457, , 461
ESP10, 405, 416, 426, 441, 450, 460, , 464
ESP10, 405, 416, 429, 441, 450, 462, , 466
ESP10, 402, 412, 426, 437, 446, 464, , 468
ESP10, 398, 410, 423, 435, 443, 466, , 470
ESP10, 402, 410, 424, 436, 443, 468, , 472
ESP10, 400, 410, 422, 433, 441, 470, , 474
ESP10, 400, 410, 422, 433, 441, 472, , 476
ESP10, 401, 410, 423, 433, 440, 474, , 478
ESP10, 398, 409, 422, 431, 438, 476, , 480
ESP10, 407, 418, 430, 441, 448, 478, , 482
ESP10, 409, 417, 431, 440, 447, 480, , 484
ESP10, 413, 421, 432, 442, 450, 483, , 487
ESP10, 414, 419, 430, 440, 448, 485, , 489
ESP10, 414, 419, 430, 440, 448, 487, , 491
ESP10, 416, 421, 433, 440, 449, 489, , 493
ESP10, 415, 421, 433, 440, 449, 491, , 495
ESP10, 416, 422, 435, 442, 450, 493, , 497
ESP10, 419, 425, 438, 444, 453, 495, , 499
ESP10, 419, 426, 438, 445, 453, 497, , 501
ESP10, 420, 428, 439, 446, 454, 499, , 503
ESP10, 419, 429, 438, 446, 453, 501, , 505
ESP10, 419, 429, 438, 446, 453, 504, , 508
ESP10, 419, 428, 438, 446, 452, 506, , 510
ESP10, 418, 429, 438, 445, 452, 508, , 512
ESP10, 417, 428, 438, 444, 451, 510, , 514
ESP10, 418, 429, 438, 445, 452, 512, , 516
ESP10, 425, 434, 444, 450, 457, 514, , 518
ESP10, 427, 435, 445, 451, 456, 516, , 520
ESP10, 427, 436, 446, 452, 457, 518, , 522
ESP10, 427, 437, 446, 454, 457, 520, , 524
ESP10, 428, 437, 446, 455, 458, 522, , 526
ESP10, 428, 438, 449, 455, 458, 524, , 528
ESP10, 428, 438, 450, 456, 458, 527, , 531
ESP10, 429, 437, 449, 455, 458, 529, , 533
ESP10, 430, 438, 450, 457, 459, 531, , 535
ESP10, 433, 441, 453, 459, 462, 533, , 537
ESP10, 433, 440, 451, 457, 461, 535, , 539
ESP10, 434, 439, 450, 456, 460, 537, , 541
ESP10, 433, 439, 450, 457, 460, 539, , 543
ESP10, 434, 440, 452, 458, 460, 541, , 545
ESP10, 432, 439, 451, 456, 459, 543, , 547
ESP10, 431, 437, 449, 454, 457, 545, , 549
ESP10, 432, 437, 449, 454, 458, 547, , 551
ESP10, 432, 439, 450, 455, 458, 550, , 554
ESP10, 430, 437, 448, 453, 457, 552, , 556
ESP10, 434, 439, 450, 454, 457, 554, , 558
ESP10, 433, 440, 448, 454, 456, 556, , 560
ESP10, 436, 442, 450, 456, 458, 558, , 562
ESP10, 438, 443, 453, 457, 460, 560, , 564
ESP10, 439, 444, 453, 457, 460, 562, , 566
ESP10, 435, 440, 448, 453, 456, 564, , 568
ESP10, 438, 442, 450, 455, 459, 566, , 570
ESP10, 440, 444, 453, 457, 461, 568, , 572
ESP10, 448, 453, 461, 465, 469, 571, , 575
ESP10, 448, 451, 460, 462, 468, 573, , 577
ESP10, 451, 453, 462, 465, 470, 575, , 579
ESP10, 452, 454, 462, 465, 470, 577, , 581
ESP10, 454, 456, 463, 467, 471, 579, , 583
ESP10, 452, 455, 462, 466, 470, 581, , 585
ESP10, 453, 455, 462, 466, 471, 583, , 587
ESP10, 454, 456, 462, 467, 471, 585, , 589
ESP10, 453, 456, 461, 466, 470, 587, , 591
ESP10, 450, 452, 457, 462, 466, 589, , 593
ESP10, 450, 451, 457, 461, 466, 591, , 595
ESP10, 458, 460, 466, 469, 473, 594, , 598
ESP10, 459, 461, 467, 470, 475, 596, , 600
ESP10, 459, 461, 467, 470, 475, 598, , 602
ESP10, 459, 461, 467, 470, 474, 600, , 604
ESP10, 459, 461, 467, 470, 474, 602, , 606
ESP10, 458, 461, 467, 470, 474, 604, , 608
ESP10, 458, 461, 467, 470, 474, 606, , 610
ESP10, 459, 461, 467, 470, 474, 608, , 612
ESP10, 459, 461, 467, 470, 473, 610, , 614
ESP10, 459, 461, 467, 470, 474, 612, , 616
ESP10, 460, 462, 468, 471, 474, 614, , 618
ESP10, 461, 463, 468, 471, 475, 617, , 621
ESP10, 461, 463, 468, 472, 475, 619, , 623
ESP10, 461, 463, 468, 471, 475, 621, , 625
ESP10, 462, 464, 469, 472, 475, 623, , 627
ESP10, 462, 464, 469, 472, 475, 625, , 629
ESP10, 462, 464, 470, 473, 475, 627, , 631
ESP10, 463, 465, 471, 473, 476, 629, , 633
ESP10, 463, 466, 471, 473, 476, 631, , 635
ESP10, 463, 465, 470, 473, 476, 633, , 637
ESP10, 463, 466, 470, 473, 475, 635, , 639
ESP10, 463, 466, 469, 473, 475, 638, , 642
ESP10, 463, 465, 469, 473, 475, 640, , 644
ESP10, 463, 465, 469, 473, 475, 642, , 646
ESP10, 462, 465, 469, 472, 474, 644, , 648
ESP10, 463, 465, 469, 472, 475, 646, , 650
ESP10, 463, 466, 470, 472, 475, 648, , 652
ESP10, 462, 466, 469, 472, 475, 650, , 654
ESP10, 462, 466, 469, 472, 475, 652, , 656
ESP10, 463, 466, 470, 473, 475, 654, , 658
ESP10, 463, 467, 470, 473, 475, 656, , 660
ESP10, 462, 466, 470, 473, 475, 658, , 662
ESP10, 463, 466, 470, 473, 475, 661, , 665
ESP10, 462, 466, 470, 473, 474, 663, , 667
ESP10, 462, 466, 469, 472, 474, 665, , 669
ESP10, 462, 466, 469, 473, 474, 667, , 671
ESP10, 463, 467, 470, 473, 474, 669, , 673
ESP10, 464, 467, 470, 473, 475, 671, , 675
ESP10, 464, 468, 471, 474, 475, 673, , 677
ESP10, 465, 468, 471, 474, 475, 675, , 679
ESP10, 466, 469, 472, 475, 476, 677, , 681
ESP10, 467, 469, 473, 475, 476, 679, , 683
ESP10, 467, 470, 473, 475, 477, 681, , 685
ESP10, 468, 470, 474, 475, 477, 684, , 688
ESP10, 468, 471, 474, 476, 478, 686, , 690
ESP10, 468, 471, 475, 476, 478, 688, , 692
ESP10, 469, 472, 475, 477, 479, 690, , 694
ESP10, 470, 472, 476, 478, 479, 692, , 696
ESP10, 470, 473, 476, 477, 479, 694, , 698
ESP10, 470, 473, 476, 478, 479, 696, , 700
ESP10, 470, 474, 476, 478, 480, 698, , 702
ESP10, 470, 474, 476, 478, 480, 700, , 704
ESP10, 471, 475, 476, 478, 480, 702, , 706
ESP10, 472, 475, 477, 479, 480, 705, , 709
ESP10, 472, 475, 477, 479, 480, 707, , 711
ESP10, 472, 475, 477, 479, 480, 709, , 713
ESP10, 472, 475, 477, 479, 480, 711, , 715
ESP10, 473, 476, 478, 479, 481, 713, , 717
ESP10, 474, 476, 478, 480, 481, 715, , 719
ESP10, 474, 477, 478, 480, 481, 717, , 721
ESP10, 474, 477, 479, 481, 482, 719, , 723
ESP10, 475, 478, 479, 481, 482, 721, , 725
ESP10, 475, 478, 480, 481, 483, 723, , 727
ESP10, 476, 479, 480, 481, 483, 725, , 729
ESP10, 476, 479, 481, 482, 483, 728, , 732
ESP10, 477, 479, 481, 482, 483, 730, , 734
ESP10, 477, 479, 481, 482, 483, 732, , 736
ESP10, 477, 480, 481, 482, 483, 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/RIMW1W_SQIN.ESPF10.csv
RIMW1W_SQIN.ESPF0.csv|2026-08-15
RIMW1W_SQIN.ESPF10.csv|2026-08-15
RIMW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
TIETON - AT TIETON DAM
(
RIMW1
)
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
155
213
95
275
225
APR-JUL
123
172
90
233
191
APR-AUG
142
193
92
257
209
JAN-SEP
204
279
91
358
305
JAN-JUL
174
241
89
314
271
OCT-SEP
240
337
91
441
372
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/RIMW1W_SQIN.ESPF10.csv
RIMW1W_SQIN.ESPF0.csv|2026-08-15
RIMW1W_SQIN.ESPF10.csv|2026-08-15
RIMW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
