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Water Year
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YAKIMA - NEAR PARKER
(
PARW1
)
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
968
973
51
985
1899
APR-JUL
809
809
47
809
1721
APR-AUG
862
863
48
864
1804
JAN-SEP
2154
2158
78
2170
2774
JAN-JUL
1994
1994
77
1994
2596
OCT-SEP
3461
3465
102
3477
3404
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
965
969
51
983
1899
APR-JUL
809
809
47
809
1721
APR-AUG
859
860
48
861
1804
JAN-SEP
2150
2154
78
2169
2774
JAN-JUL
1994
1994
77
1994
2596
OCT-SEP
3457
3461
102
3476
3404
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
967
972
51
987
1899
APR-JUL
809
809
47
809
1721
APR-AUG
860
862
48
865
1804
JAN-SEP
2152
2157
78
2173
2774
JAN-JUL
1994
1994
77
1994
2596
OCT-SEP
3460
3464
102
3480
3404
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 288, 334, 363, 400, 436, 70, , 74
ESP10, 288, 333, 363, 400, 437, 72, , 76
ESP10, 288, 334, 363, 400, 437, 74, , 78
ESP10, 288, 335, 363, 401, 438, 76, , 80
ESP10, 289, 336, 364, 402, 439, 78, , 82
ESP10, 288, 336, 364, 401, 438, 81, , 85
ESP10, 286, 335, 365, 402, 440, 83, , 87
ESP10, 287, 335, 365, 401, 439, 85, , 89
ESP10, 287, 336, 365, 401, 439, 87, , 91
ESP10, 284, 336, 365, 401, 441, 89, , 93
ESP10, 286, 338, 364, 401, 439, 91, , 95
ESP10, 287, 336, 365, 400, 440, 93, , 97
ESP10, 292, 336, 365, 401, 441, 95, , 99
ESP10, 293, 335, 366, 401, 442, 97, , 101
ESP10, 291, 334, 366, 402, 444, 99, , 103
ESP10, 283, 331, 365, 403, 445, 102, , 106
ESP10, 274, 326, 358, 400, 442, 104, , 108
ESP10, 276, 327, 358, 399, 441, 106, , 110
ESP10, 279, 330, 362, 400, 441, 108, , 112
ESP10, 283, 331, 363, 400, 442, 110, , 114
ESP10, 273, 322, 356, 394, 438, 112, , 116
ESP10, 284, 330, 364, 399, 446, 114, , 118
ESP10, 276, 325, 361, 396, 443, 116, , 120
ESP10, 283, 334, 367, 400, 445, 118, , 122
ESP10, 282, 334, 365, 399, 442, 120, , 124
ESP10, 278, 333, 363, 400, 442, 122, , 126
ESP10, 279, 337, 365, 402, 444, 125, , 129
ESP10, 279, 337, 366, 403, 443, 127, , 131
ESP10, 277, 335, 364, 402, 444, 129, , 133
ESP10, 267, 325, 358, 396, 440, 131, , 135
ESP10, 258, 317, 354, 393, 435, 133, , 137
ESP10, 260, 322, 358, 396, 438, 135, , 139
ESP10, 257, 320, 356, 394, 436, 137, , 141
ESP10, 272, 333, 365, 408, 442, 139, , 143
ESP10, 273, 335, 366, 409, 442, 141, , 145
ESP10, 274, 337, 370, 409, 443, 143, , 147
ESP10, 274, 336, 371, 409, 444, 145, , 149
ESP10, 271, 332, 370, 408, 442, 148, , 152
ESP10, 271, 330, 370, 406, 440, 150, , 154
ESP10, 271, 328, 375, 406, 442, 152, , 156
ESP10, 278, 332, 379, 408, 445, 154, , 158
ESP10, 293, 340, 388, 414, 449, 156, , 160
ESP10, 299, 335, 385, 412, 446, 158, , 162
ESP10, 310, 346, 393, 419, 451, 160, , 164
ESP10, 309, 348, 392, 418, 452, 162, , 166
ESP10, 310, 349, 393, 418, 453, 164, , 168
ESP10, 307, 349, 394, 416, 454, 166, , 170
ESP10, 315, 355, 397, 416, 456, 169, , 173
ESP10, 317, 354, 397, 417, 456, 171, , 175
ESP10, 317, 354, 398, 421, 457, 173, , 177
ESP10, 311, 352, 398, 423, 456, 175, , 179
ESP10, 310, 354, 397, 424, 456, 177, , 181
ESP10, 304, 349, 393, 420, 455, 179, , 183
ESP10, 313, 361, 398, 423, 461, 181, , 185
ESP10, 307, 358, 397, 422, 459, 183, , 187
ESP10, 312, 363, 401, 424, 458, 185, , 189
ESP10, 309, 361, 401, 425, 458, 187, , 191
ESP10, 309, 360, 400, 424, 458, 189, , 193
ESP10, 312, 362, 402, 425, 458, 192, , 196
ESP10, 299, 350, 396, 421, 454, 194, , 198
ESP10, 309, 355, 404, 428, 463, 196, , 200
ESP10, 320, 359, 411, 432, 466, 198, , 202
ESP10, 318, 356, 407, 437, 467, 200, , 204
ESP10, 306, 347, 399, 426, 462, 202, , 206
ESP10, 311, 361, 405, 433, 467, 204, , 208
ESP10, 302, 359, 402, 432, 460, 206, , 210
ESP10, 319, 377, 416, 449, 470, 208, , 212
ESP10, 318, 377, 417, 454, 470, 210, , 214
ESP10, 317, 379, 414, 453, 470, 212, , 216
ESP10, 312, 367, 403, 445, 462, 215, , 219
ESP10, 299, 350, 392, 432, 452, 217, , 221
ESP10, 294, 344, 387, 427, 452, 219, , 223
ESP10, 292, 343, 388, 425, 454, 221, , 225
ESP10, 299, 351, 395, 433, 460, 223, , 227
ESP10, 302, 355, 396, 435, 463, 225, , 229
ESP10, 306, 358, 398, 437, 464, 227, , 231
ESP10, 298, 354, 390, 429, 457, 229, , 233
ESP10, 298, 353, 389, 429, 453, 231, , 235
ESP10, 303, 358, 398, 434, 457, 233, , 237
ESP10, 298, 347, 391, 425, 448, 236, , 240
ESP10, 310, 359, 402, 434, 455, 238, , 242
ESP10, 311, 360, 403, 435, 456, 240, , 244
ESP10, 315, 364, 409, 438, 461, 242, , 246
ESP10, 318, 367, 413, 439, 461, 244, , 248
ESP10, 313, 365, 410, 436, 458, 246, , 250
ESP10, 305, 359, 410, 431, 452, 248, , 252
ESP10, 312, 365, 416, 439, 456, 250, , 254
ESP10, 319, 370, 416, 439, 459, 252, , 256
ESP10, 321, 372, 417, 441, 462, 254, , 258
ESP10, 322, 371, 416, 441, 461, 256, , 260
ESP10, 327, 374, 421, 444, 462, 259, , 263
ESP10, 323, 372, 418, 441, 460, 261, , 265
ESP10, 319, 369, 415, 436, 457, 263, , 267
ESP10, 325, 370, 415, 435, 456, 265, , 269
ESP10, 323, 367, 413, 432, 453, 267, , 271
ESP10, 321, 366, 413, 431, 453, 269, , 273
ESP10, 321, 370, 413, 430, 454, 271, , 275
ESP10, 324, 378, 413, 432, 457, 273, , 277
ESP10, 333, 387, 418, 439, 464, 275, , 279
ESP10, 334, 389, 419, 442, 467, 277, , 281
ESP10, 334, 389, 420, 442, 467, 279, , 283
ESP10, 334, 392, 419, 442, 468, 282, , 286
ESP10, 336, 393, 419, 444, 469, 284, , 288
ESP10, 340, 396, 419, 446, 470, 286, , 290
ESP10, 307, 347, 377, 393, 412, 288, , 292
ESP10, 342, 396, 419, 446, 469, 290, , 294
ESP10, 342, 393, 417, 443, 466, 292, , 296
ESP10, 346, 398, 421, 445, 469, 294, , 298
ESP10, 348, 407, 423, 446, 469, 296, , 300
ESP10, 354, 416, 429, 451, 471, 298, , 302
ESP10, 351, 413, 429, 451, 468, 300, , 304
ESP10, 355, 415, 433, 455, 469, 303, , 307
ESP10, 356, 418, 436, 457, 471, 305, , 309
ESP10, 361, 421, 440, 460, 474, 307, , 311
ESP10, 364, 423, 441, 463, 474, 309, , 313
ESP10, 363, 422, 438, 460, 473, 311, , 315
ESP10, 370, 426, 440, 463, 475, 313, , 317
ESP10, 375, 427, 441, 464, 475, 315, , 319
ESP10, 378, 432, 445, 465, 479, 317, , 321
ESP10, 379, 434, 448, 466, 483, 319, , 323
ESP10, 387, 438, 452, 467, 484, 321, , 325
ESP10, 386, 436, 450, 466, 483, 323, , 327
ESP10, 388, 433, 451, 465, 482, 326, , 330
ESP10, 391, 433, 451, 466, 481, 328, , 332
ESP10, 397, 434, 452, 466, 479, 330, , 334
ESP10, 396, 433, 452, 466, 479, 332, , 336
ESP10, 395, 429, 450, 466, 479, 334, , 338
ESP10, 402, 432, 456, 471, 479, 336, , 340
ESP10, 402, 432, 451, 470, 479, 338, , 342
ESP10, 405, 435, 450, 468, 480, 340, , 344
ESP10, 406, 434, 451, 468, 480, 342, , 346
ESP10, 406, 437, 453, 470, 480, 344, , 348
ESP10, 396, 430, 445, 465, 474, 346, , 350
ESP10, 396, 432, 447, 466, 476, 349, , 353
ESP10, 396, 432, 450, 466, 478, 351, , 355
ESP10, 391, 426, 445, 462, 474, 353, , 357
ESP10, 393, 425, 446, 463, 473, 355, , 359
ESP10, 399, 429, 451, 467, 477, 357, , 361
ESP10, 388, 420, 441, 460, 469, 359, , 363
ESP10, 397, 429, 447, 467, 474, 361, , 365
ESP10, 392, 425, 442, 461, 473, 363, , 367
ESP10, 398, 428, 446, 465, 475, 365, , 369
ESP10, 399, 429, 449, 464, 475, 367, , 371
ESP10, 408, 440, 456, 470, 479, 370, , 374
ESP10, 414, 445, 459, 473, 482, 372, , 376
ESP10, 418, 447, 462, 475, 485, 374, , 378
ESP10, 420, 446, 464, 476, 485, 376, , 380
ESP10, 418, 442, 461, 473, 483, 378, , 382
ESP10, 416, 440, 461, 472, 482, 380, , 384
ESP10, 420, 441, 463, 473, 484, 382, , 386
ESP10, 423, 441, 463, 474, 486, 384, , 388
ESP10, 421, 439, 459, 473, 485, 386, , 390
ESP10, 413, 432, 452, 468, 479, 388, , 392
ESP10, 402, 421, 443, 459, 471, 390, , 394
ESP10, 399, 419, 439, 454, 467, 393, , 397
ESP10, 399, 417, 438, 452, 465, 395, , 399
ESP10, 400, 417, 439, 454, 465, 397, , 401
ESP10, 393, 411, 435, 447, 457, 399, , 403
ESP10, 389, 410, 431, 445, 454, 401, , 405
ESP10, 392, 411, 433, 445, 455, 403, , 407
ESP10, 396, 416, 436, 447, 459, 405, , 409
ESP10, 388, 409, 429, 440, 454, 407, , 411
ESP10, 394, 417, 434, 447, 459, 409, , 413
ESP10, 396, 417, 434, 449, 459, 411, , 415
ESP10, 398, 415, 432, 447, 457, 413, , 417
ESP10, 396, 410, 427, 443, 454, 416, , 420
ESP10, 404, 414, 430, 448, 460, 418, , 422
ESP10, 410, 419, 435, 453, 466, 420, , 424
ESP10, 413, 423, 437, 455, 467, 422, , 426
ESP10, 417, 427, 440, 457, 468, 424, , 428
ESP10, 418, 426, 437, 453, 464, 426, , 430
ESP10, 411, 420, 434, 447, 457, 428, , 432
ESP10, 409, 420, 431, 443, 455, 430, , 434
ESP10, 403, 413, 425, 436, 449, 432, , 436
ESP10, 403, 414, 425, 436, 449, 434, , 438
ESP10, 411, 417, 427, 438, 444, 437, , 441
ESP10, 415, 419, 432, 443, 451, 439, , 443
ESP10, 420, 429, 442, 454, 464, 441, , 445
ESP10, 427, 435, 449, 460, 470, 443, , 447
ESP10, 425, 435, 449, 460, 469, 445, , 449
ESP10, 426, 437, 450, 462, 472, 447, , 451
ESP10, 428, 442, 452, 467, 474, 449, , 453
ESP10, 428, 444, 453, 467, 474, 451, , 455
ESP10, 430, 447, 456, 469, 476, 453, , 457
ESP10, 432, 447, 459, 468, 477, 455, , 459
ESP10, 435, 447, 461, 470, 478, 457, , 461
ESP10, 450, 463, 476, 485, 490, 460, , 464
ESP10, 450, 462, 473, 482, 487, 462, , 466
ESP10, 448, 460, 472, 480, 486, 464, , 468
ESP10, 445, 456, 468, 477, 481, 466, , 470
ESP10, 447, 459, 467, 476, 481, 468, , 472
ESP10, 447, 460, 469, 477, 482, 470, , 474
ESP10, 448, 461, 471, 478, 483, 472, , 476
ESP10, 448, 461, 470, 477, 482, 474, , 478
ESP10, 448, 461, 470, 476, 481, 476, , 480
ESP10, 452, 464, 472, 477, 481, 478, , 482
ESP10, 456, 464, 473, 477, 481, 480, , 484
ESP10, 459, 466, 472, 478, 480, 483, , 487
ESP10, 459, 465, 472, 478, 480, 485, , 489
ESP10, 459, 467, 473, 478, 480, 487, , 491
ESP10, 470, 477, 482, 485, 487, 489, , 493
ESP10, 469, 476, 482, 485, 487, 491, , 495
ESP10, 470, 477, 482, 486, 487, 493, , 497
ESP10, 471, 480, 485, 489, 491, 495, , 499
ESP10, 471, 479, 486, 491, 495, 497, , 501
ESP10, 468, 477, 485, 489, 494, 499, , 503
ESP10, 467, 479, 483, 488, 492, 501, , 505
ESP10, 469, 481, 486, 490, 494, 504, , 508
ESP10, 469, 480, 486, 490, 494, 506, , 510
ESP10, 472, 481, 486, 492, 495, 508, , 512
ESP10, 471, 481, 486, 491, 495, 510, , 514
ESP10, 473, 483, 487, 493, 497, 512, , 516
ESP10, 477, 487, 492, 496, 500, 514, , 518
ESP10, 477, 487, 492, 497, 501, 516, , 520
ESP10, 480, 488, 493, 498, 502, 518, , 522
ESP10, 481, 490, 496, 498, 501, 520, , 524
ESP10, 483, 491, 497, 499, 501, 522, , 526
ESP10, 484, 493, 498, 501, 502, 524, , 528
ESP10, 483, 492, 498, 501, 503, 527, , 531
ESP10, 486, 492, 499, 502, 504, 529, , 533
ESP10, 488, 495, 501, 504, 506, 531, , 535
ESP10, 488, 495, 501, 504, 506, 533, , 537
ESP10, 488, 494, 500, 503, 505, 535, , 539
ESP10, 485, 493, 497, 500, 502, 537, , 541
ESP10, 482, 491, 495, 498, 500, 539, , 543
ESP10, 484, 493, 497, 499, 502, 541, , 545
ESP10, 484, 491, 496, 498, 501, 543, , 547
ESP10, 484, 492, 496, 498, 501, 545, , 549
ESP10, 487, 493, 498, 500, 502, 547, , 551
ESP10, 487, 492, 497, 499, 501, 550, , 554
ESP10, 485, 490, 495, 498, 499, 552, , 556
ESP10, 489, 492, 497, 499, 501, 554, , 558
ESP10, 489, 492, 497, 499, 501, 556, , 560
ESP10, 490, 493, 498, 500, 501, 558, , 562
ESP10, 490, 494, 497, 500, 501, 560, , 564
ESP10, 490, 493, 497, 499, 500, 562, , 566
ESP10, 489, 493, 496, 498, 499, 564, , 568
ESP10, 492, 496, 498, 500, 501, 566, , 570
ESP10, 494, 497, 499, 501, 502, 568, , 572
ESP10, 496, 499, 500, 503, 504, 571, , 575
ESP10, 495, 498, 500, 502, 503, 573, , 577
ESP10, 497, 500, 501, 503, 504, 575, , 579
ESP10, 496, 499, 500, 502, 503, 577, , 581
ESP10, 499, 502, 504, 505, 506, 579, , 583
ESP10, 497, 500, 502, 503, 504, 581, , 585
ESP10, 497, 500, 502, 503, 504, 583, , 587
ESP10, 498, 501, 503, 504, 505, 585, , 589
ESP10, 499, 502, 504, 505, 505, 587, , 591
ESP10, 497, 500, 502, 503, 503, 589, , 593
ESP10, 498, 500, 502, 503, 503, 591, , 595
ESP10, 498, 500, 501, 502, 503, 594, , 598
ESP10, 501, 503, 505, 505, 506, 596, , 600
ESP10, 500, 502, 503, 504, 505, 598, , 602
ESP10, 497, 499, 500, 501, 502, 600, , 604
ESP10, 498, 500, 501, 502, 502, 602, , 606
ESP10, 498, 501, 502, 502, 503, 604, , 608
ESP10, 498, 501, 502, 502, 503, 606, , 610
ESP10, 498, 501, 502, 502, 503, 608, , 612
ESP10, 499, 501, 502, 503, 503, 610, , 614
ESP10, 499, 502, 503, 503, 504, 612, , 616
ESP10, 502, 503, 505, 505, 505, 614, , 618
ESP10, 503, 504, 505, 505, 506, 617, , 621
ESP10, 502, 503, 504, 505, 505, 619, , 623
ESP10, 502, 504, 505, 505, 505, 621, , 625
ESP10, 503, 505, 506, 506, 507, 623, , 627
ESP10, 502, 503, 504, 504, 504, 625, , 629
ESP10, 502, 503, 504, 504, 505, 627, , 631
ESP10, 500, 500, 501, 502, 502, 629, , 633
ESP10, 500, 501, 502, 503, 503, 631, , 635
ESP10, 501, 502, 503, 503, 503, 633, , 637
ESP10, 502, 503, 504, 504, 504, 635, , 639
ESP10, 503, 504, 504, 505, 505, 638, , 642
ESP10, 502, 503, 503, 504, 504, 640, , 644
ESP10, 501, 502, 503, 503, 504, 642, , 646
ESP10, 502, 502, 503, 503, 504, 644, , 648
ESP10, 500, 501, 501, 502, 502, 646, , 650
ESP10, 500, 501, 501, 502, 502, 648, , 652
ESP10, 500, 501, 501, 502, 502, 650, , 654
ESP10, 501, 502, 503, 503, 503, 652, , 656
ESP10, 500, 501, 502, 502, 502, 654, , 658
ESP10, 500, 501, 501, 502, 502, 656, , 660
ESP10, 500, 501, 501, 502, 502, 658, , 662
ESP10, 501, 502, 502, 502, 502, 661, , 665
ESP10, 501, 502, 502, 502, 503, 663, , 667
ESP10, 502, 502, 503, 503, 503, 665, , 669
ESP10, 506, 506, 507, 507, 507, 667, , 671
ESP10, 506, 506, 507, 507, 507, 669, , 673
ESP10, 506, 507, 507, 507, 508, 671, , 675
ESP10, 506, 507, 507, 508, 508, 673, , 677
ESP10, 506, 507, 507, 508, 508, 675, , 679
ESP10, 511, 512, 513, 513, 513, 677, , 681
ESP10, 511, 512, 513, 513, 513, 679, , 683
ESP10, 511, 512, 512, 513, 513, 681, , 685
ESP10, 511, 512, 512, 513, 513, 684, , 688
ESP10, 511, 512, 512, 513, 513, 686, , 690
ESP10, 511, 512, 512, 513, 513, 688, , 692
ESP10, 512, 513, 513, 514, 514, 690, , 694
ESP10, 512, 513, 513, 514, 514, 692, , 696
ESP10, 511, 512, 513, 513, 513, 694, , 698
ESP10, 512, 513, 513, 514, 514, 696, , 700
ESP10, 512, 513, 514, 514, 514, 698, , 702
ESP10, 512, 513, 514, 514, 514, 700, , 704
ESP10, 512, 513, 514, 514, 514, 702, , 706
ESP10, 513, 514, 514, 514, 515, 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, 513, 514, 514, 514, 515, 713, , 717
ESP10, 513, 514, 515, 515, 515, 715, , 719
ESP10, 513, 514, 515, 515, 515, 717, , 721
ESP10, 514, 515, 516, 516, 516, 719, , 723
ESP10, 514, 515, 516, 516, 516, 721, , 725
ESP10, 514, 515, 516, 516, 516, 723, , 727
ESP10, 514, 515, 516, 516, 516, 725, , 729
ESP10, 514, 516, 517, 517, 517, 728, , 732
ESP10, 515, 516, 517, 517, 517, 730, , 734
ESP10, 513, 514, 515, 515, 515, 732, , 736
ESP10, 513, 514, 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/PARW1W_SQIN.ESPF10.csv
PARW1W_SQIN.ESPF0.csv|2026-08-15
PARW1W_SQIN.ESPF10.csv|2026-08-15
PARW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
YAKIMA - NEAR PARKER
(
PARW1
)
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
1563
2084
110
2654
1899
APR-JUL
1251
1769
103
2310
1721
APR-AUG
1401
1922
107
2504
1804
JAN-SEP
2184
2895
104
3795
2774
JAN-JUL
1875
2567
99
3383
2596
OCT-SEP
2582
3630
107
4631
3404
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/PARW1W_SQIN.ESPF10.csv
PARW1W_SQIN.ESPF0.csv|2026-08-15
PARW1W_SQIN.ESPF10.csv|2026-08-15
PARW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
