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Archive:
Water Year
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YAKIMA - AT UMTANUM
(
UMTW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
638
639
53
647
1200
APR-JUL
555
555
52
555
1067
APR-AUG
586
586
52
586
1136
JAN-SEP
1432
1433
83
1442
1718
JAN-JUL
1350
1350
85
1350
1584
OCT-SEP
2237
2239
106
2247
2121
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
APR-SEP
638
639
53
647
1200
APR-JUL
555
555
52
555
1067
APR-AUG
586
586
52
586
1136
JAN-SEP
1432
1433
83
1442
1718
JAN-JUL
1350
1350
85
1350
1584
OCT-SEP
2237
2239
106
2247
2121
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
APR-SEP
640
641
53
651
1200
APR-JUL
555
555
52
555
1067
APR-AUG
586
586
52
587
1136
JAN-SEP
1435
1436
84
1445
1718
JAN-JUL
1350
1350
85
1350
1584
OCT-SEP
2240
2241
106
2251
2121
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 246, 297, 335, 366, 413, 70, , 74
ESP10, 246, 296, 335, 366, 413, 72, , 76
ESP10, 246, 297, 337, 366, 413, 74, , 78
ESP10, 246, 297, 337, 366, 413, 76, , 80
ESP10, 247, 300, 340, 366, 414, 78, , 82
ESP10, 247, 300, 340, 366, 414, 81, , 85
ESP10, 246, 301, 339, 366, 413, 83, , 87
ESP10, 247, 303, 340, 366, 413, 85, , 89
ESP10, 246, 302, 341, 366, 413, 87, , 91
ESP10, 245, 304, 339, 365, 413, 89, , 93
ESP10, 246, 306, 342, 366, 412, 91, , 95
ESP10, 248, 306, 341, 368, 411, 93, , 97
ESP10, 251, 305, 342, 370, 411, 95, , 99
ESP10, 251, 305, 341, 373, 411, 97, , 101
ESP10, 251, 304, 339, 372, 411, 99, , 103
ESP10, 247, 300, 335, 370, 409, 101, , 105
ESP10, 240, 294, 328, 365, 404, 103, , 107
ESP10, 238, 292, 329, 363, 403, 106, , 110
ESP10, 239, 294, 330, 364, 403, 108, , 112
ESP10, 241, 294, 330, 364, 403, 110, , 114
ESP10, 234, 287, 325, 357, 397, 112, , 116
ESP10, 242, 297, 332, 365, 404, 114, , 118
ESP10, 236, 292, 326, 359, 400, 116, , 120
ESP10, 241, 300, 333, 364, 405, 118, , 122
ESP10, 243, 303, 334, 365, 405, 120, , 124
ESP10, 242, 300, 333, 362, 402, 122, , 126
ESP10, 248, 302, 335, 363, 405, 124, , 128
ESP10, 249, 305, 336, 364, 406, 126, , 130
ESP10, 247, 307, 335, 364, 406, 129, , 133
ESP10, 240, 301, 329, 358, 400, 131, , 135
ESP10, 233, 295, 324, 353, 395, 133, , 137
ESP10, 234, 295, 326, 355, 399, 135, , 139
ESP10, 230, 291, 326, 355, 396, 137, , 141
ESP10, 242, 299, 337, 364, 403, 139, , 143
ESP10, 243, 302, 339, 368, 404, 141, , 145
ESP10, 242, 304, 338, 369, 404, 143, , 147
ESP10, 241, 304, 339, 369, 404, 145, , 149
ESP10, 236, 300, 338, 367, 401, 147, , 151
ESP10, 234, 299, 340, 366, 400, 149, , 153
ESP10, 233, 299, 341, 365, 400, 151, , 155
ESP10, 237, 305, 345, 368, 403, 154, , 158
ESP10, 258, 323, 361, 383, 415, 156, , 160
ESP10, 264, 320, 359, 384, 412, 158, , 162
ESP10, 274, 326, 367, 394, 418, 160, , 164
ESP10, 274, 323, 366, 395, 416, 162, , 166
ESP10, 276, 323, 368, 397, 416, 164, , 168
ESP10, 273, 319, 366, 397, 416, 166, , 170
ESP10, 280, 325, 371, 405, 421, 168, , 172
ESP10, 285, 323, 370, 405, 421, 170, , 174
ESP10, 287, 321, 368, 407, 422, 172, , 176
ESP10, 282, 318, 364, 404, 421, 174, , 178
ESP10, 281, 322, 363, 405, 423, 177, , 181
ESP10, 278, 317, 361, 400, 425, 179, , 183
ESP10, 287, 325, 371, 409, 433, 181, , 185
ESP10, 282, 321, 370, 407, 431, 183, , 187
ESP10, 289, 330, 374, 412, 435, 185, , 189
ESP10, 288, 328, 374, 411, 434, 187, , 191
ESP10, 292, 329, 375, 411, 436, 189, , 193
ESP10, 295, 330, 377, 413, 440, 191, , 195
ESP10, 288, 323, 373, 407, 436, 193, , 197
ESP10, 296, 329, 374, 412, 441, 195, , 199
ESP10, 304, 335, 380, 420, 444, 197, , 201
ESP10, 302, 335, 376, 416, 441, 199, , 203
ESP10, 292, 331, 367, 410, 433, 202, , 206
ESP10, 296, 338, 371, 415, 438, 204, , 208
ESP10, 286, 336, 366, 409, 429, 206, , 210
ESP10, 295, 346, 378, 418, 439, 208, , 212
ESP10, 295, 345, 379, 421, 439, 210, , 214
ESP10, 291, 343, 376, 419, 435, 212, , 216
ESP10, 284, 340, 369, 411, 428, 214, , 218
ESP10, 270, 330, 359, 404, 415, 216, , 220
ESP10, 264, 325, 353, 400, 412, 218, , 222
ESP10, 261, 322, 353, 399, 410, 220, , 224
ESP10, 267, 328, 360, 406, 418, 222, , 226
ESP10, 271, 332, 363, 411, 425, 225, , 229
ESP10, 272, 333, 366, 414, 426, 227, , 231
ESP10, 263, 325, 355, 406, 421, 229, , 233
ESP10, 261, 324, 354, 402, 420, 231, , 235
ESP10, 268, 326, 359, 405, 423, 233, , 237
ESP10, 265, 317, 351, 394, 414, 235, , 239
ESP10, 275, 327, 364, 405, 423, 237, , 241
ESP10, 276, 327, 367, 405, 423, 239, , 243
ESP10, 278, 328, 371, 406, 422, 241, , 245
ESP10, 280, 332, 376, 408, 423, 243, , 247
ESP10, 274, 332, 371, 403, 417, 245, , 249
ESP10, 269, 327, 366, 399, 413, 248, , 252
ESP10, 274, 330, 370, 402, 423, 250, , 254
ESP10, 275, 330, 371, 406, 427, 252, , 256
ESP10, 277, 336, 376, 410, 430, 254, , 258
ESP10, 289, 340, 381, 413, 435, 256, , 260
ESP10, 294, 342, 385, 418, 437, 258, , 262
ESP10, 289, 337, 379, 413, 432, 260, , 264
ESP10, 287, 332, 374, 408, 427, 262, , 266
ESP10, 292, 332, 380, 409, 427, 264, , 268
ESP10, 288, 328, 377, 404, 422, 266, , 270
ESP10, 287, 327, 378, 403, 422, 268, , 272
ESP10, 288, 333, 379, 402, 423, 270, , 274
ESP10, 286, 337, 377, 403, 428, 273, , 277
ESP10, 292, 347, 383, 411, 436, 275, , 279
ESP10, 293, 349, 384, 415, 438, 277, , 281
ESP10, 292, 349, 383, 414, 438, 279, , 283
ESP10, 293, 349, 383, 414, 439, 281, , 285
ESP10, 295, 353, 384, 416, 442, 283, , 287
ESP10, 299, 356, 384, 416, 443, 285, , 289
ESP10, 303, 363, 387, 419, 446, 287, , 291
ESP10, 307, 362, 384, 420, 443, 289, , 293
ESP10, 310, 360, 383, 420, 441, 291, , 295
ESP10, 316, 365, 386, 423, 444, 293, , 297
ESP10, 328, 369, 390, 424, 446, 296, , 300
ESP10, 336, 379, 398, 431, 450, 298, , 302
ESP10, 331, 374, 395, 425, 447, 300, , 304
ESP10, 335, 377, 402, 428, 449, 302, , 306
ESP10, 336, 379, 406, 429, 451, 304, , 308
ESP10, 341, 386, 414, 435, 455, 306, , 310
ESP10, 339, 387, 413, 433, 453, 308, , 312
ESP10, 336, 382, 409, 429, 450, 310, , 314
ESP10, 342, 385, 409, 433, 452, 312, , 316
ESP10, 346, 387, 409, 437, 453, 314, , 318
ESP10, 346, 390, 412, 438, 454, 316, , 320
ESP10, 346, 391, 413, 438, 455, 318, , 322
ESP10, 348, 393, 416, 440, 457, 321, , 325
ESP10, 346, 393, 417, 437, 454, 323, , 327
ESP10, 345, 390, 416, 436, 451, 325, , 329
ESP10, 349, 390, 419, 439, 450, 327, , 331
ESP10, 354, 391, 420, 437, 454, 329, , 333
ESP10, 354, 391, 419, 436, 453, 331, , 335
ESP10, 355, 390, 417, 436, 454, 333, , 337
ESP10, 360, 396, 421, 441, 457, 335, , 339
ESP10, 361, 393, 420, 439, 453, 337, , 341
ESP10, 364, 394, 421, 440, 453, 339, , 343
ESP10, 369, 395, 421, 440, 452, 341, , 345
ESP10, 371, 397, 424, 441, 455, 344, , 348
ESP10, 362, 390, 417, 436, 448, 346, , 350
ESP10, 362, 390, 420, 440, 450, 348, , 352
ESP10, 365, 391, 423, 440, 453, 350, , 354
ESP10, 359, 386, 418, 436, 450, 352, , 356
ESP10, 362, 387, 418, 438, 449, 354, , 358
ESP10, 370, 392, 424, 443, 454, 356, , 360
ESP10, 359, 382, 413, 433, 444, 358, , 362
ESP10, 369, 394, 423, 446, 457, 360, , 364
ESP10, 364, 386, 416, 439, 450, 362, , 366
ESP10, 368, 392, 420, 444, 453, 364, , 368
ESP10, 368, 394, 418, 442, 452, 366, , 370
ESP10, 377, 405, 426, 451, 461, 369, , 373
ESP10, 382, 409, 431, 456, 466, 371, , 375
ESP10, 385, 411, 435, 459, 469, 373, , 377
ESP10, 387, 414, 437, 460, 471, 375, , 379
ESP10, 384, 415, 434, 456, 467, 377, , 381
ESP10, 383, 412, 436, 456, 464, 379, , 383
ESP10, 386, 411, 438, 457, 466, 381, , 385
ESP10, 389, 411, 438, 459, 467, 383, , 387
ESP10, 390, 406, 435, 456, 464, 385, , 389
ESP10, 383, 396, 427, 448, 457, 387, , 391
ESP10, 373, 386, 414, 438, 447, 389, , 393
ESP10, 368, 381, 410, 430, 440, 392, , 396
ESP10, 366, 381, 408, 429, 437, 394, , 398
ESP10, 367, 382, 410, 428, 437, 396, , 400
ESP10, 357, 371, 399, 418, 427, 398, , 402
ESP10, 354, 370, 397, 414, 424, 400, , 404
ESP10, 359, 371, 401, 416, 426, 402, , 406
ESP10, 364, 378, 405, 421, 431, 404, , 408
ESP10, 353, 371, 394, 410, 421, 406, , 410
ESP10, 352, 370, 393, 409, 422, 408, , 412
ESP10, 352, 366, 389, 407, 421, 410, , 414
ESP10, 350, 364, 387, 405, 419, 412, , 416
ESP10, 348, 363, 384, 401, 414, 414, , 418
ESP10, 364, 378, 397, 416, 429, 417, , 421
ESP10, 353, 369, 387, 408, 419, 419, , 423
ESP10, 355, 372, 391, 408, 422, 421, , 425
ESP10, 356, 375, 390, 408, 421, 423, , 427
ESP10, 360, 375, 389, 405, 417, 425, , 429
ESP10, 361, 376, 390, 405, 418, 427, , 431
ESP10, 362, 376, 390, 405, 417, 429, , 433
ESP10, 355, 369, 384, 397, 409, 431, , 435
ESP10, 353, 368, 382, 395, 407, 433, , 437
ESP10, 361, 374, 390, 403, 412, 435, , 439
ESP10, 364, 373, 389, 401, 412, 437, , 441
ESP10, 370, 381, 397, 406, 417, 440, , 444
ESP10, 378, 387, 403, 413, 422, 442, , 446
ESP10, 378, 386, 403, 414, 422, 444, , 448
ESP10, 379, 388, 404, 417, 425, 446, , 450
ESP10, 382, 393, 407, 421, 429, 448, , 452
ESP10, 384, 396, 410, 422, 430, 450, , 454
ESP10, 384, 399, 410, 424, 431, 452, , 456
ESP10, 387, 398, 413, 423, 431, 454, , 458
ESP10, 389, 399, 415, 425, 431, 456, , 460
ESP10, 407, 418, 433, 444, 449, 458, , 462
ESP10, 408, 419, 433, 445, 450, 460, , 464
ESP10, 405, 416, 432, 442, 448, 462, , 466
ESP10, 401, 412, 428, 439, 444, 465, , 469
ESP10, 402, 412, 427, 438, 442, 467, , 471
ESP10, 403, 414, 428, 440, 443, 469, , 473
ESP10, 403, 416, 428, 440, 443, 471, , 475
ESP10, 402, 417, 429, 439, 443, 473, , 477
ESP10, 404, 421, 431, 439, 444, 475, , 479
ESP10, 405, 423, 433, 441, 446, 477, , 481
ESP10, 409, 421, 432, 440, 444, 479, , 483
ESP10, 415, 427, 437, 446, 450, 481, , 485
ESP10, 413, 428, 436, 443, 448, 483, , 487
ESP10, 414, 430, 439, 444, 448, 485, , 489
ESP10, 420, 437, 445, 450, 454, 488, , 492
ESP10, 419, 435, 443, 449, 453, 490, , 494
ESP10, 422, 435, 444, 450, 453, 492, , 496
ESP10, 427, 440, 448, 454, 457, 494, , 498
ESP10, 427, 440, 448, 453, 457, 496, , 500
ESP10, 426, 440, 448, 453, 456, 498, , 502
ESP10, 421, 434, 442, 447, 450, 500, , 504
ESP10, 422, 436, 443, 448, 451, 502, , 506
ESP10, 423, 437, 443, 448, 450, 504, , 508
ESP10, 428, 441, 447, 452, 456, 506, , 510
ESP10, 426, 440, 445, 451, 454, 508, , 512
ESP10, 429, 442, 447, 453, 457, 510, , 514
ESP10, 433, 445, 451, 456, 460, 513, , 517
ESP10, 433, 445, 451, 457, 460, 515, , 519
ESP10, 437, 446, 452, 458, 460, 517, , 521
ESP10, 439, 448, 453, 458, 460, 519, , 523
ESP10, 441, 448, 452, 458, 459, 521, , 525
ESP10, 441, 448, 454, 459, 460, 523, , 527
ESP10, 440, 447, 453, 458, 460, 525, , 529
ESP10, 440, 446, 453, 458, 459, 527, , 531
ESP10, 443, 447, 453, 457, 459, 529, , 533
ESP10, 444, 447, 454, 458, 459, 531, , 535
ESP10, 444, 448, 454, 457, 459, 533, , 537
ESP10, 441, 447, 452, 455, 457, 536, , 540
ESP10, 439, 446, 451, 454, 456, 538, , 542
ESP10, 440, 447, 451, 454, 456, 540, , 544
ESP10, 440, 447, 450, 453, 455, 542, , 546
ESP10, 441, 447, 452, 454, 456, 544, , 548
ESP10, 441, 448, 452, 454, 456, 546, , 550
ESP10, 442, 448, 452, 455, 456, 548, , 552
ESP10, 441, 447, 451, 453, 455, 550, , 554
ESP10, 442, 447, 451, 454, 455, 552, , 556
ESP10, 442, 447, 451, 453, 455, 554, , 558
ESP10, 444, 449, 452, 455, 456, 556, , 560
ESP10, 446, 449, 453, 455, 456, 558, , 562
ESP10, 446, 449, 453, 454, 456, 561, , 565
ESP10, 447, 449, 452, 454, 455, 563, , 567
ESP10, 447, 449, 452, 454, 455, 565, , 569
ESP10, 447, 449, 452, 454, 455, 567, , 571
ESP10, 447, 450, 452, 454, 455, 569, , 573
ESP10, 445, 449, 451, 452, 454, 571, , 575
ESP10, 447, 450, 451, 453, 454, 573, , 577
ESP10, 448, 451, 452, 454, 455, 575, , 579
ESP10, 450, 452, 454, 455, 456, 577, , 581
ESP10, 448, 450, 452, 453, 454, 579, , 583
ESP10, 448, 450, 451, 453, 453, 581, , 585
ESP10, 448, 450, 452, 453, 454, 584, , 588
ESP10, 448, 450, 452, 453, 453, 586, , 590
ESP10, 447, 449, 451, 451, 452, 588, , 592
ESP10, 446, 448, 450, 451, 451, 590, , 594
ESP10, 444, 447, 448, 449, 450, 592, , 596
ESP10, 446, 449, 450, 451, 451, 594, , 598
ESP10, 446, 449, 450, 450, 451, 596, , 600
ESP10, 446, 448, 450, 450, 451, 598, , 602
ESP10, 446, 449, 450, 450, 451, 600, , 604
ESP10, 446, 449, 450, 450, 451, 602, , 606
ESP10, 446, 449, 450, 451, 451, 604, , 608
ESP10, 446, 449, 450, 450, 451, 607, , 611
ESP10, 446, 449, 450, 450, 451, 609, , 613
ESP10, 446, 449, 450, 450, 451, 611, , 615
ESP10, 446, 449, 449, 450, 450, 613, , 617
ESP10, 446, 449, 450, 450, 450, 615, , 619
ESP10, 446, 449, 449, 450, 450, 617, , 621
ESP10, 446, 448, 449, 449, 450, 619, , 623
ESP10, 446, 449, 449, 449, 450, 621, , 625
ESP10, 446, 449, 449, 450, 450, 623, , 627
ESP10, 446, 449, 449, 450, 450, 625, , 629
ESP10, 447, 449, 450, 450, 451, 627, , 631
ESP10, 447, 450, 450, 451, 451, 629, , 633
ESP10, 448, 450, 451, 451, 451, 632, , 636
ESP10, 448, 450, 451, 451, 451, 634, , 638
ESP10, 448, 450, 451, 451, 451, 636, , 640
ESP10, 449, 451, 451, 451, 452, 638, , 642
ESP10, 449, 451, 451, 451, 452, 640, , 644
ESP10, 449, 451, 451, 451, 451, 642, , 646
ESP10, 448, 450, 450, 451, 451, 644, , 648
ESP10, 448, 450, 450, 450, 451, 646, , 650
ESP10, 448, 450, 450, 450, 451, 648, , 652
ESP10, 448, 450, 450, 451, 451, 650, , 654
ESP10, 448, 450, 451, 451, 451, 652, , 656
ESP10, 449, 450, 451, 451, 451, 655, , 659
ESP10, 449, 451, 451, 452, 452, 657, , 661
ESP10, 448, 450, 451, 451, 451, 659, , 663
ESP10, 449, 450, 451, 451, 451, 661, , 665
ESP10, 449, 451, 451, 451, 452, 663, , 667
ESP10, 449, 450, 451, 451, 451, 665, , 669
ESP10, 449, 450, 451, 451, 451, 667, , 671
ESP10, 449, 450, 451, 451, 451, 669, , 673
ESP10, 449, 451, 452, 452, 452, 671, , 675
ESP10, 450, 451, 452, 452, 452, 673, , 677
ESP10, 450, 451, 452, 452, 452, 675, , 679
ESP10, 450, 451, 452, 452, 452, 677, , 681
ESP10, 450, 451, 452, 452, 452, 680, , 684
ESP10, 450, 451, 452, 452, 452, 682, , 686
ESP10, 450, 451, 452, 452, 452, 684, , 688
ESP10, 450, 452, 452, 452, 453, 686, , 690
ESP10, 450, 452, 453, 453, 453, 688, , 692
ESP10, 451, 452, 453, 453, 453, 690, , 694
ESP10, 450, 452, 452, 453, 453, 692, , 696
ESP10, 450, 452, 453, 453, 453, 694, , 698
ESP10, 451, 452, 453, 453, 453, 696, , 700
ESP10, 451, 453, 453, 454, 454, 698, , 702
ESP10, 451, 453, 454, 454, 454, 700, , 704
ESP10, 452, 453, 454, 454, 454, 703, , 707
ESP10, 452, 454, 454, 454, 455, 705, , 709
ESP10, 452, 454, 454, 455, 455, 707, , 711
ESP10, 452, 454, 454, 455, 455, 709, , 713
ESP10, 452, 454, 455, 455, 455, 711, , 715
ESP10, 452, 454, 454, 454, 455, 713, , 717
ESP10, 452, 454, 455, 455, 455, 715, , 719
ESP10, 453, 455, 456, 456, 456, 717, , 721
ESP10, 453, 455, 456, 456, 456, 719, , 723
ESP10, 453, 455, 456, 456, 456, 721, , 725
ESP10, 454, 456, 456, 457, 457, 723, , 727
ESP10, 454, 456, 457, 457, 457, 725, , 729
ESP10, 454, 456, 457, 457, 457, 728, , 732
ESP10, 455, 457, 457, 457, 458, 730, , 734
ESP10, 455, 456, 457, 457, 457, 732, , 736
ESP10, 455, 456, 457, 457, 457, 734, , 738
Max Scale
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/UMTW1N_SQIN.ESPF10.csv
UMTW1N_SQIN.ESPF0.csv|2026-08-16
UMTW1N_SQIN.ESPF10.csv|2026-08-16
UMTW1N_SQIN.ESPFM.csv|2026-08-16
APR-SEP
YAKIMA - AT UMTANUM
(
UMTW1
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
808
1149
96
1518
1200
APR-JUL
715
1020
96
1362
1067
APR-AUG
759
1078
95
1452
1136
JAN-SEP
1139
1621
94
2177
1718
JAN-JUL
1048
1491
94
1982
1584
OCT-SEP
1412
2068
98
2704
2121
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/natural/UMTW1N_SQIN.ESPF10.csv
UMTW1N_SQIN.ESPF0.csv|2026-08-16
UMTW1N_SQIN.ESPF10.csv|2026-08-16
UMTW1N_SQIN.ESPFM.csv|2026-08-16
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
