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Archive:
Water Year
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COWLITZ - AT PACKWOOD
(
PACW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-08-08
Issued:
2026-08-08
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
363
368
60
377
612
APR-JUL
313
313
59
313
535
APR-AUG
342
345
59
347
581
JAN-SEP
758
764
84
772
915
JAN-JUL
709
709
85
709
837
OCT-SEP
1247
1253
105
1261
1189
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-08-08
Issued:
2026-08-08
Hide Forecast
APR-SEP
362
369
60
377
612
APR-JUL
313
313
59
313
535
APR-AUG
341
345
59
348
581
JAN-SEP
757
764
84
773
915
JAN-JUL
709
709
85
709
837
OCT-SEP
1246
1253
105
1262
1189
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-08
Issued:
2026-08-08
Hide Forecast
APR-SEP
360
369
60
378
612
APR-JUL
313
313
59
313
535
APR-AUG
340
344
59
349
581
JAN-SEP
756
764
84
774
915
JAN-JUL
709
709
85
709
837
OCT-SEP
1245
1253
105
1263
1189
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 244, 304, 331, 385, 422, 70, , 74
ESP10, 244, 303, 332, 385, 422, 72, , 76
ESP10, 244, 304, 332, 385, 422, 74, , 78
ESP10, 244, 303, 333, 385, 422, 77, , 81
ESP10, 244, 303, 333, 385, 422, 79, , 83
ESP10, 244, 303, 333, 385, 422, 81, , 85
ESP10, 244, 303, 334, 385, 422, 83, , 87
ESP10, 244, 303, 334, 385, 422, 85, , 89
ESP10, 244, 303, 334, 385, 422, 87, , 91
ESP10, 244, 303, 334, 385, 422, 89, , 93
ESP10, 244, 303, 334, 386, 422, 92, , 96
ESP10, 244, 303, 334, 386, 422, 94, , 98
ESP10, 244, 303, 334, 386, 422, 96, , 100
ESP10, 244, 303, 334, 385, 422, 98, , 102
ESP10, 244, 303, 334, 385, 422, 100, , 104
ESP10, 244, 304, 334, 385, 421, 102, , 106
ESP10, 240, 302, 330, 382, 417, 104, , 108
ESP10, 239, 302, 328, 378, 416, 107, , 111
ESP10, 239, 302, 329, 377, 416, 109, , 113
ESP10, 240, 302, 330, 378, 418, 111, , 115
ESP10, 233, 298, 323, 371, 413, 113, , 117
ESP10, 242, 303, 338, 382, 423, 115, , 119
ESP10, 242, 302, 338, 381, 422, 117, , 121
ESP10, 243, 303, 339, 383, 423, 119, , 123
ESP10, 243, 302, 339, 384, 424, 122, , 126
ESP10, 245, 305, 340, 386, 424, 124, , 128
ESP10, 246, 306, 340, 387, 424, 126, , 130
ESP10, 247, 306, 341, 388, 425, 128, , 132
ESP10, 247, 306, 344, 390, 426, 130, , 134
ESP10, 245, 304, 343, 389, 423, 132, , 136
ESP10, 239, 300, 338, 383, 418, 134, , 138
ESP10, 247, 304, 342, 388, 424, 136, , 140
ESP10, 245, 303, 342, 387, 425, 139, , 143
ESP10, 249, 306, 346, 390, 428, 141, , 145
ESP10, 248, 305, 346, 391, 428, 143, , 147
ESP10, 254, 307, 349, 394, 430, 145, , 149
ESP10, 253, 306, 348, 395, 430, 147, , 151
ESP10, 247, 301, 343, 391, 425, 149, , 153
ESP10, 245, 297, 342, 389, 422, 151, , 155
ESP10, 247, 296, 345, 391, 424, 154, , 158
ESP10, 252, 301, 354, 395, 428, 156, , 160
ESP10, 255, 303, 357, 398, 434, 158, , 162
ESP10, 250, 301, 355, 392, 432, 160, , 164
ESP10, 262, 312, 366, 401, 445, 162, , 166
ESP10, 258, 311, 364, 399, 444, 164, , 168
ESP10, 258, 309, 363, 396, 442, 166, , 170
ESP10, 259, 309, 366, 396, 442, 169, , 173
ESP10, 261, 312, 369, 399, 444, 171, , 175
ESP10, 258, 309, 365, 397, 441, 173, , 177
ESP10, 258, 309, 369, 397, 441, 175, , 179
ESP10, 257, 310, 369, 397, 439, 177, , 181
ESP10, 262, 312, 372, 398, 438, 179, , 183
ESP10, 262, 314, 369, 397, 435, 181, , 185
ESP10, 270, 321, 374, 403, 440, 184, , 188
ESP10, 269, 315, 372, 401, 437, 186, , 190
ESP10, 274, 320, 375, 406, 441, 188, , 192
ESP10, 276, 318, 372, 404, 439, 190, , 194
ESP10, 278, 316, 370, 401, 440, 192, , 196
ESP10, 280, 317, 369, 399, 440, 194, , 198
ESP10, 274, 309, 359, 386, 428, 196, , 200
ESP10, 284, 319, 368, 399, 439, 199, , 203
ESP10, 293, 325, 376, 406, 447, 201, , 205
ESP10, 291, 326, 376, 410, 447, 203, , 207
ESP10, 277, 318, 364, 399, 435, 205, , 209
ESP10, 293, 332, 379, 414, 448, 207, , 211
ESP10, 287, 328, 372, 407, 441, 209, , 213
ESP10, 305, 341, 387, 419, 452, 211, , 215
ESP10, 308, 347, 391, 420, 454, 214, , 218
ESP10, 308, 348, 392, 419, 455, 216, , 220
ESP10, 295, 337, 381, 410, 444, 218, , 222
ESP10, 279, 325, 367, 394, 431, 220, , 224
ESP10, 278, 324, 366, 392, 430, 222, , 226
ESP10, 277, 324, 366, 392, 431, 224, , 228
ESP10, 283, 331, 371, 397, 442, 226, , 230
ESP10, 286, 333, 372, 398, 443, 229, , 233
ESP10, 288, 333, 372, 399, 441, 231, , 235
ESP10, 280, 327, 365, 391, 433, 233, , 237
ESP10, 286, 326, 363, 388, 431, 235, , 239
ESP10, 286, 325, 364, 388, 431, 237, , 241
ESP10, 281, 321, 360, 386, 429, 239, , 243
ESP10, 291, 335, 373, 397, 440, 241, , 245
ESP10, 291, 333, 373, 397, 438, 244, , 248
ESP10, 299, 341, 382, 404, 445, 246, , 250
ESP10, 300, 341, 383, 405, 445, 248, , 252
ESP10, 299, 339, 382, 403, 444, 250, , 254
ESP10, 293, 333, 377, 399, 437, 252, , 256
ESP10, 300, 339, 383, 407, 443, 254, , 258
ESP10, 303, 344, 386, 408, 445, 256, , 260
ESP10, 302, 345, 387, 409, 445, 259, , 263
ESP10, 303, 345, 389, 411, 446, 261, , 265
ESP10, 309, 348, 396, 414, 449, 263, , 267
ESP10, 306, 345, 394, 413, 446, 265, , 269
ESP10, 304, 341, 393, 409, 442, 267, , 271
ESP10, 309, 340, 392, 408, 442, 269, , 273
ESP10, 309, 341, 389, 407, 440, 271, , 275
ESP10, 308, 341, 387, 404, 438, 273, , 277
ESP10, 306, 339, 383, 401, 440, 276, , 280
ESP10, 307, 342, 385, 403, 444, 278, , 282
ESP10, 311, 350, 389, 407, 449, 280, , 284
ESP10, 314, 353, 392, 410, 449, 282, , 286
ESP10, 315, 357, 394, 411, 451, 284, , 288
ESP10, 316, 358, 393, 412, 453, 286, , 290
ESP10, 318, 359, 394, 413, 453, 288, , 292
ESP10, 322, 365, 393, 415, 453, 291, , 295
ESP10, 322, 368, 396, 417, 455, 293, , 297
ESP10, 319, 368, 396, 416, 452, 295, , 299
ESP10, 318, 366, 393, 412, 448, 297, , 301
ESP10, 322, 372, 399, 416, 451, 299, , 303
ESP10, 324, 377, 403, 418, 451, 301, , 305
ESP10, 335, 385, 409, 427, 457, 303, , 307
ESP10, 330, 380, 404, 422, 453, 306, , 310
ESP10, 332, 381, 407, 424, 455, 308, , 312
ESP10, 333, 383, 409, 429, 455, 310, , 314
ESP10, 336, 385, 411, 433, 458, 312, , 316
ESP10, 331, 379, 407, 428, 453, 314, , 318
ESP10, 333, 383, 409, 431, 456, 316, , 320
ESP10, 335, 387, 412, 433, 461, 318, , 322
ESP10, 334, 389, 410, 430, 459, 321, , 325
ESP10, 335, 398, 412, 432, 461, 323, , 327
ESP10, 335, 399, 412, 432, 460, 325, , 329
ESP10, 337, 403, 415, 434, 462, 327, , 331
ESP10, 338, 405, 419, 435, 463, 329, , 333
ESP10, 335, 403, 418, 434, 461, 331, , 335
ESP10, 334, 400, 415, 431, 461, 333, , 337
ESP10, 342, 402, 421, 432, 462, 336, , 340
ESP10, 340, 398, 416, 429, 458, 338, , 342
ESP10, 340, 395, 414, 430, 455, 340, , 344
ESP10, 342, 400, 418, 436, 459, 342, , 346
ESP10, 343, 396, 416, 436, 455, 344, , 348
ESP10, 344, 393, 416, 434, 452, 346, , 350
ESP10, 346, 392, 415, 435, 452, 348, , 352
ESP10, 348, 395, 415, 439, 452, 351, , 355
ESP10, 340, 388, 407, 431, 444, 353, , 357
ESP10, 344, 390, 412, 433, 448, 355, , 359
ESP10, 347, 387, 412, 428, 446, 357, , 361
ESP10, 346, 384, 407, 426, 444, 359, , 363
ESP10, 349, 384, 408, 425, 444, 361, , 365
ESP10, 354, 388, 412, 432, 454, 363, , 367
ESP10, 340, 376, 397, 420, 443, 366, , 370
ESP10, 345, 379, 401, 423, 447, 368, , 372
ESP10, 340, 374, 402, 422, 444, 370, , 374
ESP10, 345, 378, 406, 425, 448, 372, , 376
ESP10, 350, 380, 407, 425, 447, 374, , 378
ESP10, 358, 391, 414, 433, 455, 376, , 380
ESP10, 364, 397, 419, 440, 460, 378, , 382
ESP10, 367, 400, 422, 443, 462, 381, , 385
ESP10, 367, 397, 422, 441, 460, 383, , 387
ESP10, 363, 395, 421, 436, 455, 385, , 389
ESP10, 362, 394, 418, 433, 453, 387, , 391
ESP10, 363, 392, 418, 433, 452, 389, , 393
ESP10, 363, 392, 421, 435, 452, 391, , 395
ESP10, 360, 385, 415, 428, 446, 393, , 397
ESP10, 361, 387, 420, 430, 450, 396, , 400
ESP10, 352, 377, 414, 423, 441, 398, , 402
ESP10, 349, 375, 408, 418, 436, 400, , 404
ESP10, 348, 370, 403, 416, 432, 402, , 406
ESP10, 345, 367, 398, 414, 429, 404, , 408
ESP10, 339, 361, 392, 409, 424, 406, , 410
ESP10, 340, 367, 392, 412, 424, 408, , 412
ESP10, 342, 367, 395, 414, 425, 410, , 414
ESP10, 342, 365, 395, 413, 423, 413, , 417
ESP10, 333, 354, 381, 403, 416, 415, , 419
ESP10, 343, 366, 390, 412, 426, 417, , 421
ESP10, 337, 359, 386, 407, 423, 419, , 423
ESP10, 336, 359, 387, 406, 423, 421, , 425
ESP10, 331, 353, 382, 401, 418, 423, , 427
ESP10, 328, 357, 380, 398, 414, 425, , 429
ESP10, 331, 362, 385, 403, 420, 428, , 432
ESP10, 335, 366, 388, 406, 426, 430, , 434
ESP10, 346, 371, 391, 410, 430, 432, , 436
ESP10, 351, 373, 395, 414, 432, 434, , 438
ESP10, 353, 376, 397, 415, 434, 436, , 440
ESP10, 355, 377, 402, 418, 435, 438, , 442
ESP10, 354, 372, 395, 413, 429, 440, , 444
ESP10, 353, 374, 394, 414, 429, 443, , 447
ESP10, 359, 377, 398, 416, 433, 445, , 449
ESP10, 358, 374, 397, 412, 428, 447, , 451
ESP10, 366, 383, 403, 420, 437, 449, , 453
ESP10, 368, 387, 406, 423, 438, 451, , 455
ESP10, 366, 386, 404, 422, 437, 453, , 457
ESP10, 370, 389, 408, 427, 440, 455, , 459
ESP10, 373, 391, 410, 430, 442, 458, , 462
ESP10, 372, 391, 409, 428, 443, 460, , 464
ESP10, 375, 392, 413, 429, 444, 462, , 466
ESP10, 377, 390, 412, 432, 445, 464, , 468
ESP10, 378, 390, 411, 433, 445, 466, , 470
ESP10, 376, 389, 410, 433, 444, 468, , 472
ESP10, 377, 390, 414, 433, 445, 470, , 474
ESP10, 374, 384, 408, 428, 439, 473, , 477
ESP10, 369, 380, 406, 424, 436, 475, , 479
ESP10, 375, 385, 406, 423, 437, 477, , 481
ESP10, 371, 383, 402, 420, 434, 479, , 483
ESP10, 374, 384, 402, 422, 435, 481, , 485
ESP10, 380, 388, 405, 424, 436, 483, , 487
ESP10, 379, 391, 408, 423, 433, 485, , 489
ESP10, 383, 399, 413, 427, 436, 488, , 492
ESP10, 385, 399, 413, 427, 436, 490, , 494
ESP10, 386, 399, 414, 426, 436, 492, , 496
ESP10, 387, 400, 416, 424, 434, 494, , 498
ESP10, 391, 402, 416, 425, 434, 496, , 500
ESP10, 392, 403, 417, 427, 435, 498, , 502
ESP10, 392, 401, 417, 426, 434, 500, , 504
ESP10, 392, 403, 418, 427, 434, 503, , 507
ESP10, 395, 406, 420, 429, 436, 505, , 509
ESP10, 396, 408, 421, 430, 436, 507, , 511
ESP10, 398, 413, 421, 430, 438, 509, , 513
ESP10, 398, 413, 422, 430, 438, 511, , 515
ESP10, 398, 413, 424, 431, 438, 513, , 517
ESP10, 398, 412, 424, 431, 437, 515, , 519
ESP10, 398, 414, 423, 432, 437, 518, , 522
ESP10, 399, 416, 423, 431, 436, 520, , 524
ESP10, 401, 418, 425, 433, 437, 522, , 526
ESP10, 401, 418, 428, 434, 438, 524, , 528
ESP10, 400, 417, 428, 433, 437, 526, , 530
ESP10, 402, 419, 430, 435, 438, 528, , 532
ESP10, 404, 422, 433, 439, 442, 530, , 534
ESP10, 406, 422, 435, 439, 443, 533, , 537
ESP10, 406, 423, 435, 439, 444, 535, , 539
ESP10, 406, 423, 435, 439, 445, 537, , 541
ESP10, 409, 424, 437, 441, 446, 539, , 543
ESP10, 419, 432, 445, 449, 454, 541, , 545
ESP10, 421, 432, 446, 450, 455, 543, , 547
ESP10, 420, 430, 444, 448, 454, 545, , 549
ESP10, 416, 427, 441, 445, 450, 547, , 551
ESP10, 412, 425, 436, 441, 446, 550, , 554
ESP10, 417, 430, 440, 445, 450, 552, , 556
ESP10, 415, 428, 439, 443, 448, 554, , 558
ESP10, 414, 427, 438, 442, 447, 556, , 560
ESP10, 417, 427, 438, 443, 447, 558, , 562
ESP10, 425, 435, 446, 451, 454, 560, , 564
ESP10, 420, 430, 443, 448, 450, 562, , 566
ESP10, 425, 433, 445, 450, 452, 565, , 569
ESP10, 424, 433, 444, 449, 453, 567, , 571
ESP10, 427, 436, 445, 451, 454, 569, , 573
ESP10, 430, 438, 446, 452, 455, 571, , 575
ESP10, 431, 439, 447, 452, 455, 573, , 577
ESP10, 428, 438, 444, 449, 453, 575, , 579
ESP10, 427, 437, 443, 446, 450, 577, , 581
ESP10, 430, 440, 446, 449, 453, 580, , 584
ESP10, 432, 441, 446, 450, 453, 582, , 586
ESP10, 435, 441, 446, 450, 453, 584, , 588
ESP10, 436, 441, 447, 450, 454, 586, , 590
ESP10, 436, 443, 448, 450, 454, 588, , 592
ESP10, 438, 445, 450, 451, 455, 590, , 594
ESP10, 437, 443, 449, 451, 454, 592, , 596
ESP10, 437, 444, 448, 450, 453, 595, , 599
ESP10, 438, 445, 450, 452, 455, 597, , 601
ESP10, 438, 444, 448, 450, 453, 599, , 603
ESP10, 437, 440, 445, 446, 449, 601, , 605
ESP10, 435, 439, 443, 445, 448, 603, , 607
ESP10, 434, 438, 442, 444, 446, 605, , 609
ESP10, 436, 441, 445, 447, 449, 607, , 611
ESP10, 437, 441, 445, 447, 449, 610, , 614
ESP10, 433, 437, 441, 443, 445, 612, , 616
ESP10, 433, 437, 441, 442, 446, 614, , 618
ESP10, 433, 437, 441, 443, 446, 616, , 620
ESP10, 433, 437, 441, 443, 446, 618, , 622
ESP10, 435, 439, 442, 444, 447, 620, , 624
ESP10, 435, 439, 442, 444, 447, 622, , 626
ESP10, 435, 438, 442, 444, 447, 625, , 629
ESP10, 435, 438, 442, 444, 447, 627, , 631
ESP10, 436, 439, 442, 444, 447, 629, , 633
ESP10, 435, 439, 442, 444, 447, 631, , 635
ESP10, 435, 438, 441, 443, 446, 633, , 637
ESP10, 436, 439, 442, 444, 447, 635, , 639
ESP10, 435, 439, 442, 444, 447, 637, , 641
ESP10, 436, 440, 442, 445, 447, 640, , 644
ESP10, 436, 439, 442, 445, 447, 642, , 646
ESP10, 435, 439, 442, 444, 446, 644, , 648
ESP10, 435, 438, 441, 443, 446, 646, , 650
ESP10, 433, 437, 439, 442, 444, 648, , 652
ESP10, 433, 436, 438, 441, 443, 650, , 654
ESP10, 432, 435, 438, 440, 443, 652, , 656
ESP10, 431, 435, 437, 440, 442, 655, , 659
ESP10, 431, 435, 437, 440, 442, 657, , 661
ESP10, 431, 434, 437, 439, 442, 659, , 663
ESP10, 431, 434, 437, 439, 442, 661, , 665
ESP10, 431, 434, 436, 439, 442, 663, , 667
ESP10, 431, 434, 437, 439, 442, 665, , 669
ESP10, 431, 434, 437, 439, 442, 667, , 671
ESP10, 430, 434, 437, 438, 442, 670, , 674
ESP10, 430, 433, 436, 438, 441, 672, , 676
ESP10, 429, 432, 435, 437, 440, 674, , 678
ESP10, 428, 432, 434, 436, 439, 676, , 680
ESP10, 427, 431, 434, 436, 439, 678, , 682
ESP10, 429, 431, 434, 436, 439, 680, , 684
ESP10, 429, 432, 434, 436, 439, 682, , 686
ESP10, 429, 432, 434, 437, 439, 684, , 688
ESP10, 437, 440, 442, 445, 447, 687, , 691
ESP10, 436, 439, 441, 444, 446, 689, , 693
ESP10, 436, 439, 442, 444, 446, 691, , 695
ESP10, 438, 441, 443, 445, 448, 693, , 697
ESP10, 437, 439, 441, 444, 446, 695, , 699
ESP10, 438, 441, 442, 445, 447, 697, , 701
ESP10, 438, 441, 442, 444, 447, 699, , 703
ESP10, 438, 441, 443, 445, 447, 702, , 706
ESP10, 439, 442, 443, 445, 448, 704, , 708
ESP10, 438, 441, 443, 445, 447, 706, , 710
ESP10, 438, 442, 443, 445, 447, 708, , 712
ESP10, 439, 442, 444, 446, 447, 710, , 714
ESP10, 439, 442, 444, 446, 448, 712, , 716
ESP10, 439, 442, 444, 446, 448, 714, , 718
ESP10, 439, 442, 444, 446, 447, 717, , 721
ESP10, 439, 442, 444, 446, 447, 719, , 723
ESP10, 439, 442, 444, 446, 447, 721, , 725
ESP10, 439, 442, 444, 446, 447, 723, , 727
ESP10, 439, 442, 444, 445, 447, 725, , 729
ESP10, 439, 442, 444, 446, 447, 727, , 731
ESP10, 440, 443, 444, 446, 447, 729, , 733
ESP10, 440, 443, 444, 446, 447, 732, , 736
ESP10, 440, 443, 445, 446, 447, 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/natural/PACW1N_SQIN.ESPF10.csv
PACW1N_SQIN.ESPF0.csv|2026-08-08
PACW1N_SQIN.ESPF10.csv|2026-08-08
PACW1N_SQIN.ESPFM.csv|2026-08-08
APR-SEP
COWLITZ - AT PACKWOOD
(
PACW1
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-08-08
Issued:
2026-08-08
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
411
590
96
757
612
APR-JUL
351
515
96
664
535
APR-AUG
387
566
98
718
581
JAN-SEP
669
829
91
1101
915
JAN-JUL
608
764
91
1022
837
OCT-SEP
829
1085
91
1413
1189
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/PACW1N_SQIN.ESPF10.csv
PACW1N_SQIN.ESPF0.csv|2026-08-08
PACW1N_SQIN.ESPF10.csv|2026-08-08
PACW1N_SQIN.ESPFM.csv|2026-08-08
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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