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Archive:
Water Year
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WILLAMETTE - AT WILSONVILLE
(
WLSO3
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-08-04
Issued:
2026-08-04
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
3025
3054
55
3170
5597
APR-JUL
2652
2652
53
2652
4987
APR-AUG
2866
2868
54
2890
5306
JAN-SEP
8281
8310
60
8426
13794
JAN-JUL
7907
7907
60
7907
13184
OCT-SEP
12091
12120
65
12236
18732
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-08-04
Issued:
2026-08-04
Hide Forecast
APR-SEP
3023
3052
55
3169
5597
APR-JUL
2652
2652
53
2652
4987
APR-AUG
2864
2866
54
2888
5306
JAN-SEP
8278
8308
60
8425
13794
JAN-JUL
7907
7907
60
7907
13184
OCT-SEP
12088
12118
65
12235
18732
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-04
Issued:
2026-08-04
Hide Forecast
APR-SEP
3027
3056
55
3174
5597
APR-JUL
2652
2652
53
2652
4987
APR-AUG
2865
2870
54
2893
5306
JAN-SEP
8282
8311
60
8429
13794
JAN-JUL
7907
7907
60
7907
13184
OCT-SEP
12092
12121
65
12240
18732
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 177, 260, 310, 349, 423, 70, , 74
ESP10, 176, 259, 309, 349, 422, 72, , 76
ESP10, 177, 260, 309, 349, 422, 75, , 79
ESP10, 178, 260, 310, 349, 423, 77, , 81
ESP10, 178, 260, 310, 349, 423, 79, , 83
ESP10, 177, 259, 310, 349, 422, 81, , 85
ESP10, 177, 259, 309, 349, 421, 83, , 87
ESP10, 177, 259, 309, 350, 422, 85, , 89
ESP10, 178, 260, 310, 351, 423, 88, , 92
ESP10, 177, 259, 309, 350, 422, 90, , 94
ESP10, 177, 259, 309, 350, 422, 92, , 96
ESP10, 177, 259, 309, 350, 421, 94, , 98
ESP10, 177, 259, 308, 350, 421, 96, , 100
ESP10, 177, 259, 308, 350, 420, 98, , 102
ESP10, 176, 259, 308, 350, 419, 101, , 105
ESP10, 176, 259, 306, 349, 416, 103, , 107
ESP10, 175, 258, 305, 349, 414, 105, , 109
ESP10, 175, 259, 305, 349, 416, 107, , 111
ESP10, 176, 259, 306, 350, 416, 109, , 113
ESP10, 176, 260, 306, 350, 416, 111, , 115
ESP10, 175, 259, 305, 349, 414, 114, , 118
ESP10, 175, 259, 305, 353, 415, 116, , 120
ESP10, 175, 259, 304, 353, 413, 118, , 122
ESP10, 176, 260, 306, 357, 417, 120, , 124
ESP10, 177, 260, 307, 357, 418, 122, , 126
ESP10, 177, 260, 307, 356, 417, 124, , 128
ESP10, 177, 260, 307, 357, 417, 127, , 131
ESP10, 178, 260, 307, 356, 417, 129, , 133
ESP10, 177, 260, 306, 356, 417, 131, , 135
ESP10, 177, 259, 305, 356, 416, 133, , 137
ESP10, 177, 259, 304, 356, 415, 135, , 139
ESP10, 177, 259, 303, 355, 414, 137, , 141
ESP10, 177, 259, 303, 355, 414, 140, , 144
ESP10, 178, 259, 304, 356, 415, 142, , 146
ESP10, 179, 259, 305, 357, 416, 144, , 148
ESP10, 179, 260, 305, 357, 416, 146, , 150
ESP10, 179, 260, 304, 358, 416, 148, , 152
ESP10, 179, 261, 304, 358, 415, 150, , 154
ESP10, 179, 261, 304, 358, 415, 153, , 157
ESP10, 179, 261, 303, 358, 414, 155, , 159
ESP10, 183, 265, 305, 361, 416, 157, , 161
ESP10, 185, 265, 305, 362, 417, 159, , 163
ESP10, 185, 264, 305, 361, 416, 161, , 165
ESP10, 188, 266, 306, 363, 420, 163, , 167
ESP10, 189, 266, 306, 363, 419, 166, , 170
ESP10, 186, 264, 305, 363, 418, 168, , 172
ESP10, 189, 265, 306, 364, 419, 170, , 174
ESP10, 190, 266, 308, 365, 421, 172, , 176
ESP10, 191, 268, 308, 367, 422, 174, , 178
ESP10, 191, 268, 308, 367, 422, 176, , 180
ESP10, 191, 269, 308, 367, 422, 179, , 183
ESP10, 190, 269, 308, 368, 421, 181, , 185
ESP10, 191, 271, 310, 371, 423, 183, , 187
ESP10, 192, 273, 313, 373, 425, 185, , 189
ESP10, 193, 273, 313, 375, 425, 187, , 191
ESP10, 196, 274, 314, 377, 425, 189, , 193
ESP10, 196, 274, 314, 379, 425, 192, , 196
ESP10, 195, 273, 314, 378, 426, 194, , 198
ESP10, 196, 275, 315, 379, 428, 196, , 200
ESP10, 192, 272, 312, 375, 423, 198, , 202
ESP10, 192, 272, 311, 373, 421, 200, , 204
ESP10, 195, 272, 313, 374, 424, 202, , 206
ESP10, 195, 272, 310, 372, 422, 205, , 209
ESP10, 193, 270, 308, 372, 421, 207, , 211
ESP10, 194, 272, 309, 373, 424, 209, , 213
ESP10, 193, 272, 308, 371, 422, 211, , 215
ESP10, 193, 273, 308, 370, 423, 213, , 217
ESP10, 197, 276, 311, 375, 430, 215, , 219
ESP10, 197, 276, 312, 376, 430, 218, , 222
ESP10, 193, 273, 309, 374, 426, 220, , 224
ESP10, 191, 272, 307, 375, 424, 222, , 226
ESP10, 190, 270, 305, 374, 425, 224, , 228
ESP10, 186, 267, 302, 371, 423, 226, , 230
ESP10, 189, 269, 304, 376, 426, 228, , 232
ESP10, 191, 271, 306, 377, 427, 231, , 235
ESP10, 190, 271, 306, 376, 426, 233, , 237
ESP10, 189, 270, 306, 376, 426, 235, , 239
ESP10, 190, 271, 307, 378, 426, 237, , 241
ESP10, 191, 271, 307, 378, 426, 239, , 243
ESP10, 192, 271, 307, 379, 425, 241, , 245
ESP10, 194, 273, 309, 380, 426, 244, , 248
ESP10, 197, 274, 310, 382, 427, 246, , 250
ESP10, 200, 276, 312, 387, 428, 248, , 252
ESP10, 201, 276, 313, 387, 428, 250, , 254
ESP10, 198, 275, 314, 383, 426, 252, , 256
ESP10, 196, 273, 313, 381, 424, 254, , 258
ESP10, 199, 275, 315, 384, 427, 257, , 261
ESP10, 200, 277, 317, 387, 429, 259, , 263
ESP10, 199, 278, 317, 388, 429, 261, , 265
ESP10, 200, 282, 317, 388, 429, 263, , 267
ESP10, 200, 285, 319, 389, 430, 265, , 269
ESP10, 200, 284, 319, 388, 429, 267, , 271
ESP10, 197, 281, 319, 384, 426, 270, , 274
ESP10, 198, 282, 322, 385, 428, 272, , 276
ESP10, 198, 281, 324, 385, 428, 274, , 278
ESP10, 197, 280, 324, 384, 428, 276, , 280
ESP10, 196, 279, 324, 382, 426, 278, , 282
ESP10, 199, 283, 329, 386, 430, 280, , 284
ESP10, 201, 284, 330, 387, 432, 283, , 287
ESP10, 201, 285, 331, 389, 432, 285, , 289
ESP10, 202, 286, 332, 391, 434, 287, , 291
ESP10, 206, 286, 332, 394, 434, 289, , 293
ESP10, 207, 286, 334, 394, 434, 291, , 295
ESP10, 208, 287, 334, 393, 434, 294, , 298
ESP10, 212, 288, 336, 396, 435, 296, , 300
ESP10, 214, 288, 337, 397, 434, 298, , 302
ESP10, 214, 287, 336, 396, 433, 300, , 304
ESP10, 217, 289, 340, 399, 434, 302, , 306
ESP10, 218, 289, 343, 400, 434, 304, , 308
ESP10, 220, 291, 347, 405, 436, 307, , 311
ESP10, 219, 290, 346, 404, 437, 309, , 313
ESP10, 219, 291, 346, 405, 438, 311, , 315
ESP10, 219, 290, 345, 406, 437, 313, , 317
ESP10, 220, 291, 347, 408, 439, 315, , 319
ESP10, 220, 291, 347, 408, 440, 317, , 321
ESP10, 218, 290, 346, 407, 440, 320, , 324
ESP10, 218, 290, 346, 407, 440, 322, , 326
ESP10, 218, 290, 346, 407, 440, 324, , 328
ESP10, 219, 293, 348, 407, 441, 326, , 330
ESP10, 220, 296, 350, 412, 443, 328, , 332
ESP10, 221, 300, 353, 413, 443, 330, , 334
ESP10, 221, 298, 354, 411, 442, 333, , 337
ESP10, 219, 294, 352, 408, 439, 335, , 339
ESP10, 219, 294, 349, 407, 437, 337, , 341
ESP10, 227, 299, 357, 410, 437, 339, , 343
ESP10, 226, 303, 357, 412, 437, 341, , 345
ESP10, 227, 300, 353, 409, 434, 343, , 347
ESP10, 229, 301, 354, 414, 438, 346, , 350
ESP10, 225, 298, 350, 410, 434, 348, , 352
ESP10, 222, 296, 351, 407, 431, 350, , 354
ESP10, 220, 295, 353, 405, 431, 352, , 356
ESP10, 221, 294, 354, 407, 434, 354, , 358
ESP10, 215, 284, 344, 401, 427, 356, , 360
ESP10, 217, 288, 344, 404, 429, 359, , 363
ESP10, 213, 285, 340, 399, 426, 361, , 365
ESP10, 208, 277, 334, 392, 421, 363, , 367
ESP10, 211, 278, 334, 392, 424, 365, , 369
ESP10, 215, 283, 341, 398, 431, 367, , 371
ESP10, 205, 275, 332, 388, 422, 369, , 373
ESP10, 216, 291, 345, 399, 435, 372, , 376
ESP10, 219, 294, 347, 398, 436, 374, , 378
ESP10, 227, 301, 357, 406, 443, 376, , 380
ESP10, 232, 308, 362, 409, 447, 378, , 382
ESP10, 232, 313, 367, 410, 447, 380, , 384
ESP10, 232, 317, 368, 411, 448, 382, , 386
ESP10, 230, 318, 367, 411, 448, 385, , 389
ESP10, 225, 314, 362, 405, 444, 387, , 391
ESP10, 220, 312, 359, 401, 440, 389, , 393
ESP10, 215, 307, 356, 397, 436, 391, , 395
ESP10, 214, 309, 356, 396, 435, 393, , 397
ESP10, 216, 312, 357, 398, 437, 395, , 399
ESP10, 217, 316, 357, 399, 438, 398, , 402
ESP10, 218, 315, 357, 399, 435, 400, , 404
ESP10, 212, 304, 347, 392, 426, 402, , 406
ESP10, 214, 305, 352, 393, 430, 404, , 408
ESP10, 214, 299, 361, 390, 426, 406, , 410
ESP10, 219, 299, 361, 391, 427, 408, , 412
ESP10, 219, 298, 359, 392, 426, 411, , 415
ESP10, 220, 298, 356, 392, 427, 413, , 417
ESP10, 231, 306, 368, 400, 435, 415, , 419
ESP10, 235, 304, 363, 399, 433, 417, , 421
ESP10, 234, 301, 357, 395, 432, 419, , 423
ESP10, 242, 311, 364, 404, 442, 421, , 425
ESP10, 246, 321, 368, 414, 450, 424, , 428
ESP10, 247, 325, 367, 421, 451, 426, , 430
ESP10, 248, 320, 367, 417, 443, 428, , 432
ESP10, 243, 317, 362, 410, 439, 430, , 434
ESP10, 250, 320, 374, 412, 447, 432, , 436
ESP10, 259, 328, 378, 419, 454, 434, , 438
ESP10, 265, 334, 389, 425, 456, 437, , 441
ESP10, 270, 339, 389, 427, 458, 439, , 443
ESP10, 276, 345, 391, 427, 464, 441, , 445
ESP10, 277, 342, 390, 424, 461, 443, , 447
ESP10, 267, 326, 380, 409, 445, 445, , 449
ESP10, 257, 320, 372, 396, 437, 447, , 451
ESP10, 272, 334, 384, 407, 449, 450, , 454
ESP10, 260, 321, 373, 392, 431, 452, , 456
ESP10, 272, 344, 381, 408, 438, 454, , 458
ESP10, 286, 345, 384, 417, 443, 456, , 460
ESP10, 298, 356, 391, 426, 454, 458, , 462
ESP10, 316, 361, 398, 433, 459, 460, , 464
ESP10, 325, 367, 414, 442, 465, 463, , 467
ESP10, 338, 376, 419, 449, 473, 465, , 469
ESP10, 344, 383, 427, 459, 478, 467, , 471
ESP10, 344, 385, 423, 461, 481, 469, , 473
ESP10, 350, 391, 427, 467, 484, 471, , 475
ESP10, 342, 383, 420, 461, 482, 473, , 477
ESP10, 343, 390, 425, 470, 485, 476, , 480
ESP10, 323, 368, 404, 455, 469, 478, , 482
ESP10, 308, 354, 398, 439, 455, 480, , 484
ESP10, 304, 350, 395, 437, 452, 482, , 486
ESP10, 283, 331, 375, 418, 433, 484, , 488
ESP10, 276, 322, 366, 409, 423, 486, , 490
ESP10, 295, 331, 373, 416, 427, 489, , 493
ESP10, 303, 341, 377, 421, 428, 491, , 495
ESP10, 303, 341, 377, 420, 428, 493, , 497
ESP10, 326, 360, 394, 431, 439, 495, , 499
ESP10, 330, 358, 393, 427, 435, 497, , 501
ESP10, 330, 362, 394, 427, 435, 499, , 503
ESP10, 334, 364, 400, 430, 437, 502, , 506
ESP10, 344, 374, 407, 436, 443, 504, , 508
ESP10, 342, 374, 401, 431, 439, 506, , 510
ESP10, 351, 383, 406, 434, 441, 508, , 512
ESP10, 352, 387, 409, 433, 441, 510, , 514
ESP10, 355, 387, 414, 432, 442, 512, , 516
ESP10, 357, 387, 419, 432, 442, 515, , 519
ESP10, 364, 389, 421, 433, 442, 517, , 521
ESP10, 366, 388, 420, 434, 442, 519, , 523
ESP10, 369, 394, 420, 433, 442, 521, , 525
ESP10, 369, 392, 419, 432, 441, 523, , 527
ESP10, 370, 397, 422, 433, 440, 526, , 530
ESP10, 371, 399, 424, 434, 441, 528, , 532
ESP10, 374, 400, 426, 436, 441, 530, , 534
ESP10, 376, 400, 427, 438, 441, 532, , 536
ESP10, 382, 400, 427, 438, 442, 534, , 538
ESP10, 390, 402, 427, 438, 442, 536, , 540
ESP10, 391, 405, 427, 439, 442, 539, , 543
ESP10, 391, 411, 430, 439, 442, 541, , 545
ESP10, 392, 411, 430, 439, 442, 543, , 547
ESP10, 394, 415, 430, 440, 442, 545, , 549
ESP10, 397, 416, 432, 440, 443, 547, , 551
ESP10, 396, 415, 432, 440, 443, 549, , 553
ESP10, 397, 413, 432, 439, 442, 552, , 556
ESP10, 400, 415, 431, 438, 442, 554, , 558
ESP10, 402, 416, 433, 438, 442, 556, , 560
ESP10, 405, 417, 435, 439, 442, 558, , 562
ESP10, 408, 417, 435, 438, 442, 560, , 564
ESP10, 406, 416, 433, 438, 441, 562, , 566
ESP10, 406, 420, 434, 438, 441, 565, , 569
ESP10, 408, 424, 437, 441, 443, 567, , 571
ESP10, 410, 423, 436, 440, 442, 569, , 573
ESP10, 414, 423, 435, 440, 442, 571, , 575
ESP10, 413, 425, 435, 439, 442, 573, , 577
ESP10, 414, 425, 436, 440, 442, 575, , 579
ESP10, 419, 427, 438, 441, 442, 578, , 582
ESP10, 420, 430, 438, 442, 443, 580, , 584
ESP10, 420, 430, 437, 440, 442, 582, , 586
ESP10, 421, 428, 435, 439, 441, 584, , 588
ESP10, 423, 431, 436, 440, 441, 586, , 590
ESP10, 425, 431, 436, 439, 440, 588, , 592
ESP10, 426, 433, 436, 440, 441, 591, , 595
ESP10, 425, 433, 437, 440, 441, 593, , 597
ESP10, 426, 433, 437, 440, 441, 595, , 599
ESP10, 428, 434, 437, 440, 442, 597, , 601
ESP10, 428, 434, 438, 440, 442, 599, , 603
ESP10, 427, 434, 438, 440, 441, 601, , 605
ESP10, 427, 434, 438, 440, 441, 604, , 608
ESP10, 425, 432, 435, 437, 439, 606, , 610
ESP10, 426, 432, 436, 438, 439, 608, , 612
ESP10, 428, 434, 437, 440, 441, 610, , 614
ESP10, 428, 435, 438, 440, 442, 612, , 616
ESP10, 428, 435, 438, 440, 441, 614, , 618
ESP10, 428, 435, 438, 440, 441, 617, , 621
ESP10, 427, 434, 437, 439, 440, 619, , 623
ESP10, 427, 434, 437, 439, 440, 621, , 625
ESP10, 428, 435, 437, 440, 441, 623, , 627
ESP10, 428, 435, 438, 440, 441, 625, , 629
ESP10, 428, 435, 438, 440, 441, 627, , 631
ESP10, 428, 435, 439, 440, 441, 630, , 634
ESP10, 428, 435, 438, 440, 441, 632, , 636
ESP10, 428, 435, 438, 440, 441, 634, , 638
ESP10, 428, 436, 439, 440, 441, 636, , 640
ESP10, 429, 435, 439, 440, 441, 638, , 642
ESP10, 429, 436, 439, 441, 441, 640, , 644
ESP10, 430, 436, 439, 441, 441, 643, , 647
ESP10, 430, 435, 438, 440, 441, 645, , 649
ESP10, 430, 436, 439, 441, 441, 647, , 651
ESP10, 431, 436, 440, 441, 442, 649, , 653
ESP10, 430, 436, 439, 441, 442, 651, , 655
ESP10, 430, 435, 439, 440, 441, 653, , 657
ESP10, 429, 435, 438, 440, 440, 656, , 660
ESP10, 429, 435, 438, 439, 440, 658, , 662
ESP10, 429, 435, 438, 439, 440, 660, , 664
ESP10, 429, 434, 438, 439, 440, 662, , 666
ESP10, 429, 435, 438, 439, 440, 664, , 668
ESP10, 429, 434, 437, 439, 440, 666, , 670
ESP10, 429, 434, 437, 439, 440, 669, , 673
ESP10, 429, 434, 437, 439, 440, 671, , 675
ESP10, 429, 435, 438, 440, 440, 673, , 677
ESP10, 431, 435, 438, 439, 440, 675, , 679
ESP10, 431, 435, 438, 439, 440, 677, , 681
ESP10, 430, 435, 437, 439, 440, 679, , 683
ESP10, 430, 435, 437, 439, 440, 682, , 686
ESP10, 430, 435, 438, 439, 440, 684, , 688
ESP10, 430, 435, 437, 439, 440, 686, , 690
ESP10, 431, 435, 438, 439, 440, 688, , 692
ESP10, 431, 436, 439, 440, 440, 690, , 694
ESP10, 430, 435, 438, 439, 440, 692, , 696
ESP10, 430, 435, 438, 439, 440, 695, , 699
ESP10, 430, 435, 438, 439, 440, 697, , 701
ESP10, 430, 435, 438, 439, 440, 699, , 703
ESP10, 430, 435, 438, 439, 440, 701, , 705
ESP10, 430, 435, 438, 439, 440, 703, , 707
ESP10, 431, 436, 439, 440, 440, 705, , 709
ESP10, 431, 436, 439, 440, 441, 708, , 712
ESP10, 431, 436, 438, 440, 440, 710, , 714
ESP10, 431, 436, 439, 440, 441, 712, , 716
ESP10, 431, 436, 439, 440, 440, 714, , 718
ESP10, 431, 436, 439, 440, 441, 716, , 720
ESP10, 431, 436, 439, 440, 441, 718, , 722
ESP10, 431, 436, 439, 440, 441, 721, , 725
ESP10, 431, 436, 439, 440, 441, 723, , 727
ESP10, 431, 436, 439, 440, 441, 725, , 729
ESP10, 431, 436, 439, 440, 441, 727, , 731
ESP10, 431, 436, 439, 440, 441, 729, , 733
ESP10, 431, 436, 439, 440, 441, 731, , 735
ESP10, 429, 434, 436, 438, 438, 734, , 738
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
Overlay
ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/WLSO3N_SQIN.ESPF10.csv
WLSO3N_SQIN.ESPF0.csv|2026-08-04
WLSO3N_SQIN.ESPF10.csv|2026-08-04
WLSO3N_SQIN.ESPFM.csv|2026-08-04
APR-SEP
WILLAMETTE - AT WILSONVILLE
(
WLSO3
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-08-04
Issued:
2026-08-04
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
3243
4887
87
6952
5597
APR-JUL
2881
4349
87
6271
4987
APR-AUG
3075
4642
87
6628
5306
JAN-SEP
8549
12416
90
16897
13794
JAN-JUL
8068
11821
90
16205
13184
OCT-SEP
11901
16790
90
23560
18732
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/WLSO3N_SQIN.ESPF10.csv
WLSO3N_SQIN.ESPF0.csv|2026-08-04
WLSO3N_SQIN.ESPF10.csv|2026-08-04
WLSO3N_SQIN.ESPFM.csv|2026-08-04
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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