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Archive:
Water Year
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NF STILLAGUAMISH - NEAR ARLINGTON
(
ARGW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-26
Issued:
2026-07-26
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
209
227
53
267
428
APR-JUL
191
191
52
191
371
APR-AUG
201
203
51
214
395
JAN-SEP
716
734
81
775
902
JAN-JUL
699
699
83
699
846
OCT-SEP
1330
1349
98
1389
1377
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-07-26
Issued:
2026-07-26
Hide Forecast
APR-SEP
209
226
53
268
428
APR-JUL
191
191
52
191
371
APR-AUG
200
202
51
214
395
JAN-SEP
716
734
81
775
902
JAN-JUL
698
699
83
699
846
OCT-SEP
1330
1348
98
1389
1377
Reference
ESP with 0 Days QPF
Ensemble:
2026-07-26
Issued:
2026-07-26
Hide Forecast
APR-SEP
209
229
54
266
428
APR-JUL
191
191
52
191
371
APR-AUG
200
203
51
216
395
JAN-SEP
716
736
82
773
902
JAN-JUL
698
699
83
699
846
OCT-SEP
1331
1350
98
1387
1377
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 208, 260, 308, 379, 421, 70, , 74
ESP10, 208, 260, 307, 379, 421, 72, , 76
ESP10, 208, 260, 308, 379, 421, 75, , 79
ESP10, 208, 260, 308, 379, 421, 77, , 81
ESP10, 208, 260, 308, 379, 421, 79, , 83
ESP10, 208, 260, 308, 379, 421, 81, , 85
ESP10, 208, 260, 308, 379, 421, 84, , 88
ESP10, 208, 260, 308, 379, 421, 86, , 90
ESP10, 208, 260, 308, 379, 421, 88, , 92
ESP10, 208, 260, 308, 379, 420, 90, , 94
ESP10, 208, 260, 308, 379, 420, 93, , 97
ESP10, 207, 260, 308, 379, 420, 95, , 99
ESP10, 207, 260, 308, 379, 420, 97, , 101
ESP10, 207, 260, 308, 379, 420, 99, , 103
ESP10, 207, 260, 308, 379, 420, 102, , 106
ESP10, 206, 259, 307, 378, 419, 104, , 108
ESP10, 206, 259, 307, 378, 419, 106, , 110
ESP10, 206, 259, 307, 379, 419, 108, , 112
ESP10, 206, 259, 307, 378, 419, 110, , 114
ESP10, 207, 259, 307, 378, 420, 113, , 117
ESP10, 209, 259, 307, 378, 419, 115, , 119
ESP10, 214, 259, 307, 378, 419, 117, , 121
ESP10, 214, 259, 307, 378, 419, 119, , 123
ESP10, 215, 259, 307, 378, 419, 122, , 126
ESP10, 215, 259, 307, 378, 419, 124, , 128
ESP10, 215, 259, 307, 378, 419, 126, , 130
ESP10, 215, 259, 307, 378, 419, 128, , 132
ESP10, 215, 259, 307, 378, 419, 131, , 135
ESP10, 215, 259, 307, 378, 419, 133, , 137
ESP10, 215, 258, 306, 377, 418, 135, , 139
ESP10, 215, 258, 307, 377, 418, 137, , 141
ESP10, 215, 258, 307, 377, 418, 139, , 143
ESP10, 215, 258, 307, 377, 418, 142, , 146
ESP10, 218, 259, 308, 378, 419, 144, , 148
ESP10, 218, 260, 309, 378, 419, 146, , 150
ESP10, 218, 260, 311, 378, 419, 148, , 152
ESP10, 220, 260, 312, 378, 419, 151, , 155
ESP10, 220, 259, 311, 378, 418, 153, , 157
ESP10, 219, 257, 312, 376, 418, 155, , 159
ESP10, 220, 259, 315, 377, 418, 157, , 161
ESP10, 219, 258, 317, 376, 418, 160, , 164
ESP10, 223, 258, 317, 376, 419, 162, , 166
ESP10, 225, 256, 315, 374, 417, 164, , 168
ESP10, 232, 263, 320, 378, 421, 166, , 170
ESP10, 231, 262, 320, 376, 420, 169, , 173
ESP10, 230, 260, 320, 375, 419, 171, , 175
ESP10, 231, 261, 318, 376, 418, 173, , 177
ESP10, 233, 264, 322, 378, 419, 175, , 179
ESP10, 232, 265, 322, 378, 420, 177, , 181
ESP10, 233, 268, 322, 380, 424, 180, , 184
ESP10, 229, 265, 320, 377, 422, 182, , 186
ESP10, 229, 267, 319, 377, 422, 184, , 188
ESP10, 227, 271, 317, 375, 421, 186, , 190
ESP10, 235, 280, 326, 383, 427, 189, , 193
ESP10, 232, 277, 324, 380, 425, 191, , 195
ESP10, 233, 279, 325, 381, 426, 193, , 197
ESP10, 231, 277, 323, 379, 425, 195, , 199
ESP10, 231, 284, 324, 379, 426, 198, , 202
ESP10, 235, 288, 327, 381, 429, 200, , 204
ESP10, 228, 285, 321, 376, 425, 202, , 206
ESP10, 232, 289, 324, 379, 427, 204, , 208
ESP10, 232, 291, 327, 380, 428, 206, , 210
ESP10, 229, 290, 325, 378, 426, 209, , 213
ESP10, 222, 286, 318, 372, 422, 211, , 215
ESP10, 226, 289, 321, 378, 425, 213, , 217
ESP10, 228, 290, 324, 380, 428, 215, , 219
ESP10, 237, 292, 334, 389, 434, 218, , 222
ESP10, 237, 292, 334, 387, 432, 220, , 224
ESP10, 239, 296, 336, 388, 433, 222, , 226
ESP10, 233, 292, 334, 384, 430, 224, , 228
ESP10, 231, 288, 330, 377, 427, 227, , 231
ESP10, 236, 290, 331, 379, 427, 229, , 233
ESP10, 229, 287, 327, 376, 424, 231, , 235
ESP10, 229, 286, 328, 378, 424, 233, , 237
ESP10, 232, 288, 330, 386, 425, 236, , 240
ESP10, 233, 289, 330, 386, 426, 238, , 242
ESP10, 238, 288, 330, 382, 425, 240, , 244
ESP10, 242, 288, 329, 382, 425, 242, , 246
ESP10, 243, 290, 329, 382, 427, 244, , 248
ESP10, 244, 287, 327, 380, 425, 247, , 251
ESP10, 249, 292, 332, 386, 429, 249, , 253
ESP10, 248, 291, 330, 385, 428, 251, , 255
ESP10, 254, 298, 335, 389, 433, 253, , 257
ESP10, 253, 297, 338, 388, 432, 256, , 260
ESP10, 250, 293, 339, 385, 430, 258, , 262
ESP10, 246, 292, 337, 382, 429, 260, , 264
ESP10, 249, 298, 340, 384, 432, 262, , 266
ESP10, 251, 302, 342, 386, 435, 265, , 269
ESP10, 252, 303, 342, 387, 437, 267, , 271
ESP10, 253, 303, 344, 388, 439, 269, , 273
ESP10, 253, 302, 346, 389, 438, 271, , 275
ESP10, 248, 296, 340, 381, 433, 273, , 277
ESP10, 245, 293, 337, 378, 430, 276, , 280
ESP10, 244, 291, 334, 376, 429, 278, , 282
ESP10, 244, 291, 333, 375, 428, 280, , 284
ESP10, 242, 287, 330, 373, 425, 282, , 286
ESP10, 243, 292, 331, 375, 426, 285, , 289
ESP10, 245, 296, 333, 378, 427, 287, , 291
ESP10, 251, 303, 340, 383, 431, 289, , 293
ESP10, 251, 303, 341, 385, 432, 291, , 295
ESP10, 252, 302, 342, 385, 431, 294, , 298
ESP10, 258, 306, 342, 385, 431, 296, , 300
ESP10, 262, 308, 343, 386, 432, 298, , 302
ESP10, 262, 310, 344, 387, 434, 300, , 304
ESP10, 262, 311, 345, 387, 434, 303, , 307
ESP10, 261, 314, 343, 386, 432, 305, , 309
ESP10, 259, 312, 340, 383, 430, 307, , 311
ESP10, 262, 318, 343, 387, 432, 309, , 313
ESP10, 263, 322, 344, 389, 432, 311, , 315
ESP10, 267, 325, 349, 393, 435, 314, , 318
ESP10, 268, 325, 349, 393, 435, 316, , 320
ESP10, 269, 328, 349, 393, 435, 318, , 322
ESP10, 270, 329, 351, 396, 436, 320, , 324
ESP10, 271, 330, 353, 396, 437, 323, , 327
ESP10, 269, 329, 352, 395, 435, 325, , 329
ESP10, 270, 330, 353, 396, 436, 327, , 331
ESP10, 274, 337, 358, 400, 441, 329, , 333
ESP10, 273, 337, 357, 400, 440, 332, , 336
ESP10, 273, 337, 359, 400, 439, 334, , 338
ESP10, 272, 337, 359, 402, 439, 336, , 340
ESP10, 272, 337, 360, 401, 439, 338, , 342
ESP10, 272, 337, 362, 401, 439, 340, , 344
ESP10, 269, 334, 361, 398, 436, 343, , 347
ESP10, 270, 334, 363, 398, 439, 345, , 349
ESP10, 276, 340, 371, 404, 442, 347, , 351
ESP10, 276, 340, 371, 405, 442, 349, , 353
ESP10, 275, 339, 373, 404, 441, 352, , 356
ESP10, 278, 340, 375, 405, 443, 354, , 358
ESP10, 278, 341, 375, 407, 444, 356, , 360
ESP10, 278, 340, 375, 407, 443, 358, , 362
ESP10, 281, 340, 375, 408, 444, 361, , 365
ESP10, 278, 340, 373, 407, 443, 363, , 367
ESP10, 275, 337, 371, 401, 439, 365, , 369
ESP10, 274, 335, 368, 399, 438, 367, , 371
ESP10, 272, 333, 366, 396, 436, 370, , 374
ESP10, 268, 329, 362, 394, 433, 372, , 376
ESP10, 274, 334, 367, 400, 436, 374, , 378
ESP10, 280, 340, 371, 408, 439, 376, , 380
ESP10, 274, 334, 365, 402, 434, 378, , 382
ESP10, 278, 338, 371, 407, 438, 381, , 385
ESP10, 278, 332, 367, 404, 435, 383, , 387
ESP10, 279, 332, 370, 406, 436, 385, , 389
ESP10, 286, 337, 375, 414, 441, 387, , 391
ESP10, 291, 341, 378, 418, 443, 390, , 394
ESP10, 293, 345, 381, 420, 446, 392, , 396
ESP10, 295, 349, 384, 424, 448, 394, , 398
ESP10, 294, 348, 383, 423, 447, 396, , 400
ESP10, 292, 347, 380, 420, 444, 399, , 403
ESP10, 289, 344, 376, 417, 442, 401, , 405
ESP10, 287, 342, 373, 414, 440, 403, , 407
ESP10, 287, 343, 376, 415, 441, 405, , 409
ESP10, 285, 339, 374, 410, 439, 407, , 411
ESP10, 282, 334, 374, 407, 437, 410, , 414
ESP10, 278, 328, 369, 402, 432, 412, , 416
ESP10, 272, 322, 360, 394, 425, 414, , 418
ESP10, 271, 320, 355, 390, 422, 416, , 420
ESP10, 274, 320, 355, 390, 422, 419, , 423
ESP10, 277, 320, 355, 391, 424, 421, , 425
ESP10, 277, 320, 355, 390, 423, 423, , 427
ESP10, 281, 325, 361, 394, 427, 425, , 429
ESP10, 283, 332, 365, 397, 431, 428, , 432
ESP10, 286, 334, 366, 397, 434, 430, , 434
ESP10, 290, 338, 371, 401, 438, 432, , 436
ESP10, 290, 339, 373, 402, 438, 434, , 438
ESP10, 287, 335, 370, 401, 435, 437, , 441
ESP10, 288, 332, 370, 398, 434, 439, , 443
ESP10, 289, 333, 370, 399, 433, 441, , 445
ESP10, 280, 321, 360, 391, 423, 443, , 447
ESP10, 282, 318, 358, 390, 419, 445, , 449
ESP10, 288, 322, 361, 396, 420, 448, , 452
ESP10, 289, 323, 360, 395, 421, 450, , 454
ESP10, 294, 327, 363, 398, 424, 452, , 456
ESP10, 298, 328, 362, 399, 425, 454, , 458
ESP10, 301, 321, 360, 394, 419, 457, , 461
ESP10, 303, 323, 360, 398, 420, 459, , 463
ESP10, 318, 331, 365, 413, 431, 461, , 465
ESP10, 319, 334, 365, 412, 428, 463, , 467
ESP10, 324, 339, 368, 416, 432, 466, , 470
ESP10, 336, 354, 382, 428, 442, 468, , 472
ESP10, 336, 356, 381, 434, 443, 470, , 474
ESP10, 339, 360, 389, 437, 453, 472, , 476
ESP10, 339, 362, 388, 440, 455, 474, , 478
ESP10, 343, 364, 389, 442, 460, 477, , 481
ESP10, 345, 365, 395, 446, 461, 479, , 483
ESP10, 345, 365, 398, 451, 465, 481, , 485
ESP10, 345, 366, 398, 451, 467, 483, , 487
ESP10, 341, 361, 395, 446, 462, 486, , 490
ESP10, 344, 365, 396, 448, 464, 488, , 492
ESP10, 341, 363, 399, 446, 463, 490, , 494
ESP10, 333, 357, 390, 438, 458, 492, , 496
ESP10, 335, 356, 389, 439, 457, 495, , 499
ESP10, 345, 363, 394, 446, 464, 497, , 501
ESP10, 354, 371, 399, 453, 470, 499, , 503
ESP10, 360, 378, 407, 458, 477, 501, , 505
ESP10, 365, 378, 415, 457, 480, 504, , 508
ESP10, 369, 380, 418, 459, 482, 506, , 510
ESP10, 374, 391, 422, 465, 486, 508, , 512
ESP10, 374, 392, 425, 463, 485, 510, , 514
ESP10, 379, 395, 431, 462, 484, 512, , 516
ESP10, 381, 398, 433, 463, 485, 515, , 519
ESP10, 383, 400, 434, 466, 486, 517, , 521
ESP10, 390, 409, 439, 471, 491, 519, , 523
ESP10, 391, 415, 443, 475, 492, 521, , 525
ESP10, 395, 419, 445, 479, 496, 524, , 528
ESP10, 397, 420, 449, 479, 496, 526, , 530
ESP10, 398, 421, 451, 479, 498, 528, , 532
ESP10, 404, 426, 453, 479, 500, 530, , 534
ESP10, 408, 431, 455, 483, 501, 533, , 537
ESP10, 409, 434, 459, 483, 501, 535, , 539
ESP10, 410, 434, 459, 483, 501, 537, , 541
ESP10, 410, 435, 460, 485, 501, 539, , 543
ESP10, 412, 436, 464, 486, 502, 541, , 545
ESP10, 414, 435, 469, 490, 502, 544, , 548
ESP10, 415, 436, 469, 489, 502, 546, , 550
ESP10, 417, 439, 469, 492, 503, 548, , 552
ESP10, 418, 440, 472, 492, 504, 550, , 554
ESP10, 419, 441, 472, 492, 505, 553, , 557
ESP10, 418, 440, 476, 492, 506, 555, , 559
ESP10, 415, 438, 474, 492, 505, 557, , 561
ESP10, 420, 436, 473, 489, 503, 559, , 563
ESP10, 426, 439, 475, 493, 506, 562, , 566
ESP10, 429, 441, 477, 495, 505, 564, , 568
ESP10, 423, 440, 472, 488, 501, 566, , 570
ESP10, 418, 439, 467, 483, 497, 568, , 572
ESP10, 411, 433, 459, 477, 490, 571, , 575
ESP10, 413, 432, 457, 475, 487, 573, , 577
ESP10, 408, 425, 453, 470, 482, 575, , 579
ESP10, 409, 427, 458, 472, 484, 577, , 581
ESP10, 416, 434, 458, 473, 484, 579, , 583
ESP10, 415, 437, 457, 474, 483, 582, , 586
ESP10, 413, 437, 457, 474, 482, 584, , 588
ESP10, 415, 436, 455, 473, 482, 586, , 590
ESP10, 416, 435, 455, 472, 482, 588, , 592
ESP10, 420, 441, 461, 478, 486, 591, , 595
ESP10, 425, 447, 466, 480, 488, 593, , 597
ESP10, 427, 449, 466, 481, 490, 595, , 599
ESP10, 433, 452, 471, 485, 495, 597, , 601
ESP10, 433, 452, 471, 482, 493, 600, , 604
ESP10, 436, 459, 475, 484, 495, 602, , 606
ESP10, 435, 456, 473, 482, 492, 604, , 608
ESP10, 432, 451, 468, 477, 489, 606, , 610
ESP10, 435, 455, 471, 483, 492, 608, , 612
ESP10, 434, 456, 471, 484, 492, 611, , 615
ESP10, 435, 461, 474, 485, 493, 613, , 617
ESP10, 433, 460, 473, 483, 492, 615, , 619
ESP10, 426, 456, 468, 478, 486, 617, , 621
ESP10, 435, 465, 477, 486, 495, 620, , 624
ESP10, 425, 457, 468, 477, 488, 622, , 626
ESP10, 424, 456, 467, 475, 486, 624, , 628
ESP10, 424, 457, 469, 476, 487, 626, , 630
ESP10, 418, 452, 464, 472, 481, 629, , 633
ESP10, 411, 445, 457, 465, 474, 631, , 635
ESP10, 415, 446, 458, 465, 475, 633, , 637
ESP10, 414, 446, 457, 465, 474, 635, , 639
ESP10, 415, 448, 458, 465, 475, 638, , 642
ESP10, 416, 448, 458, 465, 475, 640, , 644
ESP10, 417, 448, 459, 466, 475, 642, , 646
ESP10, 419, 448, 459, 466, 475, 644, , 648
ESP10, 420, 448, 459, 466, 475, 646, , 650
ESP10, 420, 448, 461, 467, 475, 649, , 653
ESP10, 420, 451, 461, 467, 475, 651, , 655
ESP10, 421, 449, 460, 466, 474, 653, , 657
ESP10, 419, 446, 458, 464, 472, 655, , 659
ESP10, 418, 448, 457, 464, 471, 658, , 662
ESP10, 426, 450, 458, 467, 472, 660, , 664
ESP10, 427, 448, 456, 465, 473, 662, , 666
ESP10, 428, 450, 457, 466, 474, 664, , 668
ESP10, 430, 451, 459, 468, 475, 667, , 671
ESP10, 429, 451, 457, 467, 474, 669, , 673
ESP10, 429, 451, 457, 467, 474, 671, , 675
ESP10, 433, 449, 457, 466, 473, 673, , 677
ESP10, 434, 450, 456, 466, 473, 675, , 679
ESP10, 435, 450, 457, 466, 473, 678, , 682
ESP10, 435, 450, 458, 467, 473, 680, , 684
ESP10, 434, 449, 458, 466, 473, 682, , 686
ESP10, 434, 448, 457, 465, 472, 684, , 688
ESP10, 437, 452, 461, 468, 475, 687, , 691
ESP10, 437, 452, 461, 468, 475, 689, , 693
ESP10, 437, 452, 461, 469, 475, 691, , 695
ESP10, 437, 453, 462, 469, 475, 693, , 697
ESP10, 437, 454, 462, 469, 475, 696, , 700
ESP10, 437, 455, 462, 469, 475, 698, , 702
ESP10, 437, 455, 462, 469, 475, 700, , 704
ESP10, 437, 454, 462, 470, 475, 702, , 706
ESP10, 437, 454, 462, 470, 475, 705, , 709
ESP10, 437, 454, 462, 470, 475, 707, , 711
ESP10, 437, 455, 462, 470, 475, 709, , 713
ESP10, 438, 455, 463, 471, 476, 711, , 715
ESP10, 439, 455, 463, 471, 476, 713, , 717
ESP10, 439, 455, 463, 471, 476, 716, , 720
ESP10, 438, 455, 464, 471, 476, 718, , 722
ESP10, 438, 455, 464, 471, 476, 720, , 724
ESP10, 439, 456, 464, 472, 476, 722, , 726
ESP10, 438, 456, 464, 472, 476, 725, , 729
ESP10, 438, 456, 464, 472, 476, 727, , 731
ESP10, 438, 456, 464, 472, 476, 729, , 733
ESP10, 438, 456, 464, 472, 476, 731, , 735
ESP10, 438, 456, 465, 472, 476, 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/ARGW1N_SQIN.ESPF10.csv
ARGW1N_SQIN.ESPF0.csv|2026-07-26
ARGW1N_SQIN.ESPF10.csv|2026-07-26
ARGW1N_SQIN.ESPFM.csv|2026-07-26
APR-SEP
NF STILLAGUAMISH - NEAR ARLINGTON
(
ARGW1
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-26
Issued:
2026-07-26
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
296
438
102
619
428
APR-JUL
256
382
103
556
371
APR-AUG
275
404
102
583
395
JAN-SEP
715
938
104
1141
902
JAN-JUL
659
856
101
1074
846
OCT-SEP
1027
1346
98
1604
1377
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/ARGW1N_SQIN.ESPF10.csv
ARGW1N_SQIN.ESPF0.csv|2026-07-26
ARGW1N_SQIN.ESPF10.csv|2026-07-26
ARGW1N_SQIN.ESPFM.csv|2026-07-26
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
