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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:
2026-07-20
Issued:
2026-07-20
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
210
228
53
267
428
APR-JUL
191
191
52
191
371
JAN-SEP
717
736
82
775
902
JAN-JUL
699
699
83
699
846
OCT-SEP
1331
1350
98
1389
1377
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-07-20
Issued:
2026-07-20
Hide Forecast
APR-SEP
210
228
53
266
428
APR-JUL
191
191
52
191
371
JAN-SEP
717
735
82
774
902
JAN-JUL
698
699
83
699
846
OCT-SEP
1331
1350
98
1388
1377
Reference
ESP with 0 Days QPF
Ensemble:
2026-07-20
Issued:
2026-07-20
Hide Forecast
APR-SEP
210
230
54
268
428
APR-JUL
191
191
52
194
371
JAN-SEP
717
737
82
775
902
JAN-JUL
698
699
83
701
846
OCT-SEP
1331
1351
98
1390
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, 73, , 77
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, 82, , 86
ESP10, 208, 260, 308, 379, 421, 84, , 88
ESP10, 208, 260, 308, 379, 421, 86, , 90
ESP10, 208, 260, 308, 379, 421, 89, , 93
ESP10, 208, 260, 308, 379, 420, 91, , 95
ESP10, 208, 260, 308, 379, 420, 93, , 97
ESP10, 207, 260, 308, 379, 420, 95, , 99
ESP10, 207, 260, 308, 379, 420, 98, , 102
ESP10, 207, 260, 308, 379, 420, 100, , 104
ESP10, 207, 260, 308, 379, 420, 102, , 106
ESP10, 206, 259, 307, 378, 419, 104, , 108
ESP10, 206, 259, 307, 378, 419, 107, , 111
ESP10, 206, 259, 307, 379, 419, 109, , 113
ESP10, 206, 259, 307, 378, 419, 111, , 115
ESP10, 207, 259, 307, 378, 420, 114, , 118
ESP10, 209, 259, 307, 378, 419, 116, , 120
ESP10, 214, 259, 307, 378, 419, 118, , 122
ESP10, 214, 259, 307, 378, 419, 120, , 124
ESP10, 215, 259, 307, 378, 419, 123, , 127
ESP10, 215, 259, 307, 378, 419, 125, , 129
ESP10, 215, 259, 307, 378, 419, 127, , 131
ESP10, 215, 259, 307, 378, 419, 130, , 134
ESP10, 215, 259, 307, 378, 419, 132, , 136
ESP10, 215, 259, 307, 378, 419, 134, , 138
ESP10, 215, 258, 306, 377, 418, 136, , 140
ESP10, 215, 258, 307, 377, 418, 139, , 143
ESP10, 215, 258, 307, 377, 418, 141, , 145
ESP10, 215, 258, 307, 377, 418, 143, , 147
ESP10, 218, 259, 308, 378, 419, 145, , 149
ESP10, 218, 260, 309, 378, 419, 148, , 152
ESP10, 218, 260, 311, 378, 419, 150, , 154
ESP10, 220, 260, 312, 378, 419, 152, , 156
ESP10, 220, 259, 311, 378, 418, 155, , 159
ESP10, 219, 257, 312, 376, 418, 157, , 161
ESP10, 220, 259, 315, 377, 418, 159, , 163
ESP10, 219, 258, 317, 376, 418, 161, , 165
ESP10, 223, 258, 317, 376, 419, 164, , 168
ESP10, 225, 256, 315, 374, 417, 166, , 170
ESP10, 232, 263, 320, 378, 421, 168, , 172
ESP10, 231, 262, 320, 376, 420, 171, , 175
ESP10, 230, 260, 320, 375, 419, 173, , 177
ESP10, 231, 261, 318, 376, 418, 175, , 179
ESP10, 233, 264, 322, 378, 419, 177, , 181
ESP10, 232, 265, 322, 378, 420, 180, , 184
ESP10, 233, 268, 322, 380, 424, 182, , 186
ESP10, 229, 265, 320, 377, 422, 184, , 188
ESP10, 229, 267, 319, 377, 422, 187, , 191
ESP10, 227, 271, 317, 375, 421, 189, , 193
ESP10, 235, 280, 326, 383, 427, 191, , 195
ESP10, 232, 277, 324, 380, 425, 193, , 197
ESP10, 233, 279, 325, 381, 426, 196, , 200
ESP10, 231, 277, 323, 379, 425, 198, , 202
ESP10, 231, 284, 324, 379, 426, 200, , 204
ESP10, 235, 288, 327, 381, 429, 202, , 206
ESP10, 228, 285, 321, 376, 425, 205, , 209
ESP10, 232, 289, 324, 379, 427, 207, , 211
ESP10, 232, 291, 327, 380, 428, 209, , 213
ESP10, 229, 290, 325, 378, 426, 212, , 216
ESP10, 222, 286, 318, 372, 422, 214, , 218
ESP10, 226, 289, 321, 378, 425, 216, , 220
ESP10, 228, 290, 324, 380, 428, 218, , 222
ESP10, 237, 292, 334, 389, 434, 221, , 225
ESP10, 237, 292, 334, 387, 432, 223, , 227
ESP10, 239, 296, 336, 388, 433, 225, , 229
ESP10, 233, 292, 334, 384, 430, 228, , 232
ESP10, 231, 288, 330, 377, 427, 230, , 234
ESP10, 236, 290, 331, 379, 427, 232, , 236
ESP10, 229, 287, 327, 376, 424, 234, , 238
ESP10, 229, 286, 328, 378, 424, 237, , 241
ESP10, 232, 288, 330, 386, 425, 239, , 243
ESP10, 233, 289, 330, 386, 426, 241, , 245
ESP10, 238, 288, 330, 382, 425, 243, , 247
ESP10, 242, 288, 329, 382, 425, 246, , 250
ESP10, 243, 290, 329, 382, 427, 248, , 252
ESP10, 244, 287, 327, 380, 425, 250, , 254
ESP10, 249, 292, 332, 386, 429, 253, , 257
ESP10, 248, 291, 330, 385, 428, 255, , 259
ESP10, 254, 298, 335, 389, 433, 257, , 261
ESP10, 253, 297, 338, 388, 432, 259, , 263
ESP10, 250, 293, 339, 385, 430, 262, , 266
ESP10, 246, 292, 337, 382, 429, 264, , 268
ESP10, 249, 298, 340, 384, 432, 266, , 270
ESP10, 251, 302, 342, 386, 435, 269, , 273
ESP10, 252, 303, 342, 387, 437, 271, , 275
ESP10, 253, 303, 344, 388, 439, 273, , 277
ESP10, 253, 302, 346, 389, 438, 275, , 279
ESP10, 248, 296, 340, 381, 433, 278, , 282
ESP10, 245, 293, 337, 378, 430, 280, , 284
ESP10, 244, 291, 334, 376, 429, 282, , 286
ESP10, 244, 291, 333, 375, 428, 284, , 288
ESP10, 242, 287, 330, 373, 425, 287, , 291
ESP10, 243, 292, 331, 375, 426, 289, , 293
ESP10, 245, 296, 333, 378, 427, 291, , 295
ESP10, 251, 303, 340, 383, 431, 294, , 298
ESP10, 251, 303, 341, 385, 432, 296, , 300
ESP10, 252, 302, 342, 385, 431, 298, , 302
ESP10, 258, 306, 342, 385, 431, 300, , 304
ESP10, 262, 308, 343, 386, 432, 303, , 307
ESP10, 262, 310, 344, 387, 434, 305, , 309
ESP10, 262, 311, 345, 387, 434, 307, , 311
ESP10, 261, 314, 343, 386, 432, 310, , 314
ESP10, 259, 312, 340, 383, 430, 312, , 316
ESP10, 262, 318, 343, 387, 432, 314, , 318
ESP10, 263, 322, 344, 389, 432, 316, , 320
ESP10, 267, 325, 349, 393, 435, 319, , 323
ESP10, 268, 325, 349, 393, 435, 321, , 325
ESP10, 269, 328, 349, 393, 435, 323, , 327
ESP10, 270, 329, 351, 396, 436, 326, , 330
ESP10, 271, 330, 353, 396, 437, 328, , 332
ESP10, 269, 329, 352, 395, 435, 330, , 334
ESP10, 270, 330, 353, 396, 436, 332, , 336
ESP10, 274, 337, 358, 400, 441, 335, , 339
ESP10, 273, 337, 357, 400, 440, 337, , 341
ESP10, 273, 337, 359, 400, 439, 339, , 343
ESP10, 272, 337, 359, 402, 439, 341, , 345
ESP10, 272, 337, 360, 401, 439, 344, , 348
ESP10, 272, 337, 362, 401, 439, 346, , 350
ESP10, 269, 334, 361, 398, 436, 348, , 352
ESP10, 270, 334, 363, 398, 439, 351, , 355
ESP10, 276, 340, 371, 404, 442, 353, , 357
ESP10, 276, 340, 371, 405, 442, 355, , 359
ESP10, 275, 339, 373, 404, 441, 357, , 361
ESP10, 278, 340, 375, 405, 443, 360, , 364
ESP10, 278, 341, 375, 407, 444, 362, , 366
ESP10, 278, 340, 375, 407, 443, 364, , 368
ESP10, 281, 340, 375, 408, 444, 367, , 371
ESP10, 278, 340, 373, 407, 443, 369, , 373
ESP10, 275, 337, 371, 401, 439, 371, , 375
ESP10, 274, 335, 368, 399, 438, 373, , 377
ESP10, 272, 333, 366, 396, 436, 376, , 380
ESP10, 268, 329, 362, 394, 433, 378, , 382
ESP10, 274, 334, 367, 400, 436, 380, , 384
ESP10, 280, 340, 371, 408, 439, 382, , 386
ESP10, 274, 334, 365, 402, 434, 385, , 389
ESP10, 278, 338, 371, 407, 438, 387, , 391
ESP10, 278, 332, 367, 404, 435, 389, , 393
ESP10, 279, 332, 370, 406, 436, 392, , 396
ESP10, 286, 337, 375, 414, 441, 394, , 398
ESP10, 291, 341, 378, 418, 443, 396, , 400
ESP10, 293, 345, 381, 420, 446, 398, , 402
ESP10, 295, 349, 384, 424, 448, 401, , 405
ESP10, 294, 348, 383, 423, 447, 403, , 407
ESP10, 292, 347, 380, 420, 444, 405, , 409
ESP10, 289, 344, 376, 417, 442, 408, , 412
ESP10, 287, 342, 373, 414, 440, 410, , 414
ESP10, 287, 343, 376, 415, 441, 412, , 416
ESP10, 285, 339, 374, 410, 439, 414, , 418
ESP10, 282, 334, 374, 407, 437, 417, , 421
ESP10, 278, 328, 369, 402, 432, 419, , 423
ESP10, 272, 322, 360, 394, 425, 421, , 425
ESP10, 271, 320, 355, 390, 422, 424, , 428
ESP10, 274, 320, 355, 390, 422, 426, , 430
ESP10, 277, 320, 355, 391, 424, 428, , 432
ESP10, 277, 320, 355, 390, 423, 430, , 434
ESP10, 281, 325, 361, 394, 427, 433, , 437
ESP10, 283, 332, 365, 397, 431, 435, , 439
ESP10, 286, 334, 366, 397, 434, 437, , 441
ESP10, 290, 338, 371, 401, 438, 439, , 443
ESP10, 290, 339, 373, 402, 438, 442, , 446
ESP10, 287, 335, 370, 401, 435, 444, , 448
ESP10, 288, 332, 370, 398, 434, 446, , 450
ESP10, 289, 333, 370, 399, 433, 449, , 453
ESP10, 280, 321, 360, 391, 423, 451, , 455
ESP10, 282, 318, 358, 390, 419, 453, , 457
ESP10, 288, 322, 361, 396, 420, 455, , 459
ESP10, 289, 323, 360, 395, 421, 458, , 462
ESP10, 294, 327, 363, 398, 424, 460, , 464
ESP10, 298, 328, 362, 399, 425, 462, , 466
ESP10, 301, 321, 360, 394, 419, 465, , 469
ESP10, 303, 323, 360, 398, 420, 467, , 471
ESP10, 318, 331, 365, 413, 431, 469, , 473
ESP10, 319, 334, 365, 412, 428, 471, , 475
ESP10, 324, 339, 368, 416, 432, 474, , 478
ESP10, 336, 354, 382, 428, 442, 476, , 480
ESP10, 336, 356, 381, 434, 443, 478, , 482
ESP10, 339, 360, 389, 437, 453, 480, , 484
ESP10, 339, 362, 388, 440, 455, 483, , 487
ESP10, 343, 364, 389, 442, 460, 485, , 489
ESP10, 345, 365, 395, 446, 461, 487, , 491
ESP10, 345, 365, 398, 451, 465, 490, , 494
ESP10, 345, 366, 398, 451, 467, 492, , 496
ESP10, 341, 361, 395, 446, 462, 494, , 498
ESP10, 344, 365, 396, 448, 464, 496, , 500
ESP10, 341, 363, 399, 446, 463, 499, , 503
ESP10, 333, 357, 390, 438, 458, 501, , 505
ESP10, 335, 356, 389, 439, 457, 503, , 507
ESP10, 345, 363, 394, 446, 464, 506, , 510
ESP10, 354, 371, 399, 453, 470, 508, , 512
ESP10, 360, 378, 407, 458, 477, 510, , 514
ESP10, 365, 378, 415, 457, 480, 512, , 516
ESP10, 369, 380, 418, 459, 482, 515, , 519
ESP10, 374, 391, 422, 465, 486, 517, , 521
ESP10, 374, 392, 425, 463, 485, 519, , 523
ESP10, 379, 395, 431, 462, 484, 522, , 526
ESP10, 381, 398, 433, 463, 485, 524, , 528
ESP10, 383, 400, 434, 466, 486, 526, , 530
ESP10, 390, 409, 439, 471, 491, 528, , 532
ESP10, 391, 415, 443, 475, 492, 531, , 535
ESP10, 395, 419, 445, 479, 496, 533, , 537
ESP10, 397, 420, 449, 479, 496, 535, , 539
ESP10, 398, 421, 451, 479, 498, 537, , 541
ESP10, 404, 426, 453, 479, 500, 540, , 544
ESP10, 408, 431, 455, 483, 501, 542, , 546
ESP10, 409, 434, 459, 483, 501, 544, , 548
ESP10, 410, 434, 459, 483, 501, 547, , 551
ESP10, 410, 435, 460, 485, 501, 549, , 553
ESP10, 412, 436, 464, 486, 502, 551, , 555
ESP10, 414, 435, 469, 490, 502, 553, , 557
ESP10, 415, 436, 469, 489, 502, 556, , 560
ESP10, 417, 439, 469, 492, 503, 558, , 562
ESP10, 418, 440, 472, 492, 504, 560, , 564
ESP10, 419, 441, 472, 492, 505, 563, , 567
ESP10, 418, 440, 476, 492, 506, 565, , 569
ESP10, 415, 438, 474, 492, 505, 567, , 571
ESP10, 420, 436, 473, 489, 503, 569, , 573
ESP10, 426, 439, 475, 493, 506, 572, , 576
ESP10, 429, 441, 477, 495, 505, 574, , 578
ESP10, 423, 440, 472, 488, 501, 576, , 580
ESP10, 418, 439, 467, 483, 497, 578, , 582
ESP10, 411, 433, 459, 477, 490, 581, , 585
ESP10, 413, 432, 457, 475, 487, 583, , 587
ESP10, 408, 425, 453, 470, 482, 585, , 589
ESP10, 409, 427, 458, 472, 484, 588, , 592
ESP10, 416, 434, 458, 473, 484, 590, , 594
ESP10, 415, 437, 457, 474, 483, 592, , 596
ESP10, 413, 437, 457, 474, 482, 594, , 598
ESP10, 415, 436, 455, 473, 482, 597, , 601
ESP10, 416, 435, 455, 472, 482, 599, , 603
ESP10, 420, 441, 461, 478, 486, 601, , 605
ESP10, 425, 447, 466, 480, 488, 604, , 608
ESP10, 427, 449, 466, 481, 490, 606, , 610
ESP10, 433, 452, 471, 485, 495, 608, , 612
ESP10, 433, 452, 471, 482, 493, 610, , 614
ESP10, 436, 459, 475, 484, 495, 613, , 617
ESP10, 435, 456, 473, 482, 492, 615, , 619
ESP10, 432, 451, 468, 477, 489, 617, , 621
ESP10, 435, 455, 471, 483, 492, 619, , 623
ESP10, 434, 456, 471, 484, 492, 622, , 626
ESP10, 435, 461, 474, 485, 493, 624, , 628
ESP10, 433, 460, 473, 483, 492, 626, , 630
ESP10, 426, 456, 468, 478, 486, 629, , 633
ESP10, 435, 465, 477, 486, 495, 631, , 635
ESP10, 425, 457, 468, 477, 488, 633, , 637
ESP10, 424, 456, 467, 475, 486, 635, , 639
ESP10, 424, 457, 469, 476, 487, 638, , 642
ESP10, 418, 452, 464, 472, 481, 640, , 644
ESP10, 411, 445, 457, 465, 474, 642, , 646
ESP10, 415, 446, 458, 465, 475, 645, , 649
ESP10, 414, 446, 457, 465, 474, 647, , 651
ESP10, 415, 448, 458, 465, 475, 649, , 653
ESP10, 416, 448, 458, 465, 475, 651, , 655
ESP10, 417, 448, 459, 466, 475, 654, , 658
ESP10, 419, 448, 459, 466, 475, 656, , 660
ESP10, 420, 448, 459, 466, 475, 658, , 662
ESP10, 420, 448, 461, 467, 475, 661, , 665
ESP10, 420, 451, 461, 467, 475, 663, , 667
ESP10, 421, 449, 460, 466, 474, 665, , 669
ESP10, 419, 446, 458, 464, 472, 667, , 671
ESP10, 418, 448, 457, 464, 471, 670, , 674
ESP10, 426, 450, 458, 467, 472, 672, , 676
ESP10, 427, 448, 456, 465, 473, 674, , 678
ESP10, 428, 450, 457, 466, 474, 676, , 680
ESP10, 430, 451, 459, 468, 475, 679, , 683
ESP10, 429, 451, 457, 467, 474, 681, , 685
ESP10, 429, 451, 457, 467, 474, 683, , 687
ESP10, 433, 449, 457, 466, 473, 686, , 690
ESP10, 434, 450, 456, 466, 473, 688, , 692
ESP10, 435, 450, 457, 466, 473, 690, , 694
ESP10, 435, 450, 458, 467, 473, 692, , 696
ESP10, 434, 449, 458, 466, 473, 695, , 699
ESP10, 434, 448, 457, 465, 472, 697, , 701
ESP10, 437, 452, 461, 468, 475, 699, , 703
ESP10, 437, 452, 461, 468, 475, 702, , 706
ESP10, 437, 452, 461, 469, 475, 704, , 708
ESP10, 437, 453, 462, 469, 475, 706, , 710
ESP10, 437, 454, 462, 469, 475, 708, , 712
ESP10, 437, 455, 462, 469, 475, 711, , 715
ESP10, 437, 455, 462, 469, 475, 713, , 717
ESP10, 437, 454, 462, 470, 475, 715, , 719
ESP10, 437, 454, 462, 470, 475, 717, , 721
ESP10, 437, 454, 462, 470, 475, 720, , 724
ESP10, 437, 455, 462, 470, 475, 722, , 726
ESP10, 438, 455, 463, 471, 476, 724, , 728
ESP10, 439, 455, 463, 471, 476, 727, , 731
ESP10, 439, 455, 463, 471, 476, 729, , 733
ESP10, 438, 455, 464, 471, 476, 731, , 735
ESP10, 438, 455, 464, 471, 476, 733, , 737
Max Scale
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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|2026-07-20
ARGW1N_SQIN.ESPF10.csv|2026-07-20
ARGW1N_SQIN.ESPFM.csv|2026-07-20
APR-SEP
NF STILLAGUAMISH - NEAR ARLINGTON
(
ARGW1
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-20
Issued:
2026-07-20
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
JAN-SEP
714
937
104
1141
902
JAN-JUL
659
856
101
1074
846
OCT-SEP
1027
1348
98
1605
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|2026-07-20
ARGW1N_SQIN.ESPF10.csv|2026-07-20
ARGW1N_SQIN.ESPFM.csv|2026-07-20
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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