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Archive:
Water Year
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CLE ELUM - NEAR ROSLYN
(
CLEW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
182
182
44
188
419
APR-JUL
170
170
44
170
386
APR-AUG
177
177
44
178
407
JAN-SEP
389
389
71
395
545
JAN-JUL
377
377
74
377
512
OCT-SEP
682
682
101
687
672
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
APR-SEP
182
182
44
187
419
APR-JUL
170
170
44
170
386
APR-AUG
177
177
44
178
407
JAN-SEP
389
389
71
394
545
JAN-JUL
377
377
74
377
512
OCT-SEP
682
682
101
687
672
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
APR-SEP
182
182
44
188
419
APR-JUL
170
170
44
170
386
APR-AUG
177
177
44
178
407
JAN-SEP
389
389
71
396
545
JAN-JUL
377
377
74
377
512
OCT-SEP
682
682
101
688
672
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 234, 303, 334, 357, 400, 70, , 74
ESP10, 236, 303, 334, 356, 399, 72, , 76
ESP10, 237, 303, 334, 356, 399, 74, , 78
ESP10, 237, 303, 334, 356, 399, 76, , 80
ESP10, 237, 303, 334, 356, 399, 78, , 82
ESP10, 237, 303, 334, 356, 399, 81, , 85
ESP10, 237, 303, 334, 356, 399, 83, , 87
ESP10, 238, 303, 334, 356, 399, 85, , 89
ESP10, 238, 303, 334, 356, 400, 87, , 91
ESP10, 237, 303, 334, 355, 399, 89, , 93
ESP10, 238, 304, 334, 356, 400, 91, , 95
ESP10, 239, 304, 334, 359, 399, 93, , 97
ESP10, 239, 305, 334, 361, 399, 95, , 99
ESP10, 239, 306, 334, 368, 399, 97, , 101
ESP10, 241, 308, 333, 368, 398, 99, , 103
ESP10, 240, 306, 331, 368, 396, 101, , 105
ESP10, 234, 301, 325, 363, 392, 103, , 107
ESP10, 230, 298, 322, 360, 389, 106, , 110
ESP10, 230, 298, 322, 361, 389, 108, , 112
ESP10, 229, 297, 322, 358, 388, 110, , 114
ESP10, 221, 291, 315, 351, 382, 112, , 116
ESP10, 231, 300, 327, 361, 389, 114, , 118
ESP10, 226, 295, 323, 356, 385, 116, , 120
ESP10, 231, 299, 328, 361, 390, 118, , 122
ESP10, 236, 302, 332, 365, 395, 120, , 124
ESP10, 235, 298, 329, 362, 393, 122, , 126
ESP10, 240, 298, 333, 364, 396, 124, , 128
ESP10, 240, 299, 335, 365, 397, 126, , 130
ESP10, 238, 298, 334, 364, 397, 129, , 133
ESP10, 231, 291, 329, 358, 390, 131, , 135
ESP10, 222, 282, 323, 351, 383, 133, , 137
ESP10, 223, 284, 326, 354, 386, 135, , 139
ESP10, 222, 282, 324, 355, 385, 137, , 141
ESP10, 234, 291, 332, 361, 392, 139, , 143
ESP10, 237, 292, 331, 361, 393, 141, , 145
ESP10, 237, 293, 331, 363, 393, 143, , 147
ESP10, 242, 293, 334, 367, 392, 145, , 149
ESP10, 237, 289, 331, 363, 387, 147, , 151
ESP10, 235, 287, 332, 363, 386, 149, , 153
ESP10, 235, 286, 333, 363, 390, 151, , 155
ESP10, 239, 291, 337, 367, 395, 154, , 158
ESP10, 256, 306, 351, 381, 409, 156, , 160
ESP10, 262, 305, 348, 381, 406, 158, , 162
ESP10, 271, 312, 357, 388, 414, 160, , 164
ESP10, 271, 309, 355, 386, 415, 162, , 166
ESP10, 271, 310, 355, 386, 416, 164, , 168
ESP10, 269, 310, 353, 384, 417, 166, , 170
ESP10, 275, 316, 361, 390, 422, 168, , 172
ESP10, 279, 316, 363, 395, 423, 170, , 174
ESP10, 277, 316, 361, 395, 425, 172, , 176
ESP10, 272, 319, 357, 391, 422, 174, , 178
ESP10, 270, 326, 357, 391, 421, 177, , 181
ESP10, 266, 321, 356, 387, 417, 179, , 183
ESP10, 278, 329, 364, 395, 424, 181, , 185
ESP10, 275, 330, 361, 395, 423, 183, , 187
ESP10, 279, 333, 365, 400, 427, 185, , 189
ESP10, 279, 331, 365, 399, 427, 187, , 191
ESP10, 284, 332, 369, 400, 430, 189, , 193
ESP10, 287, 334, 372, 401, 434, 191, , 195
ESP10, 279, 327, 366, 394, 428, 193, , 197
ESP10, 286, 335, 371, 400, 435, 195, , 199
ESP10, 291, 343, 377, 409, 439, 197, , 201
ESP10, 289, 344, 375, 410, 437, 199, , 203
ESP10, 281, 337, 366, 403, 428, 202, , 206
ESP10, 288, 349, 374, 411, 435, 204, , 208
ESP10, 279, 342, 367, 403, 426, 206, , 210
ESP10, 286, 350, 375, 410, 433, 208, , 212
ESP10, 287, 352, 376, 416, 435, 210, , 214
ESP10, 286, 351, 376, 416, 435, 212, , 216
ESP10, 274, 339, 365, 405, 425, 214, , 218
ESP10, 258, 327, 355, 392, 415, 216, , 220
ESP10, 257, 326, 355, 392, 416, 218, , 222
ESP10, 254, 323, 354, 391, 414, 220, , 224
ESP10, 261, 330, 361, 396, 421, 222, , 226
ESP10, 265, 333, 361, 396, 424, 225, , 229
ESP10, 271, 337, 365, 399, 425, 227, , 231
ESP10, 262, 329, 357, 391, 419, 229, , 233
ESP10, 259, 320, 348, 381, 409, 231, , 235
ESP10, 263, 322, 352, 382, 410, 233, , 237
ESP10, 259, 313, 346, 377, 403, 235, , 239
ESP10, 266, 320, 351, 382, 408, 237, , 241
ESP10, 266, 323, 351, 384, 408, 239, , 243
ESP10, 271, 331, 360, 392, 413, 241, , 245
ESP10, 275, 333, 363, 392, 413, 243, , 247
ESP10, 269, 331, 362, 390, 409, 245, , 249
ESP10, 265, 325, 357, 385, 403, 248, , 252
ESP10, 268, 331, 363, 388, 406, 250, , 254
ESP10, 270, 336, 366, 392, 411, 252, , 256
ESP10, 273, 337, 370, 396, 416, 254, , 258
ESP10, 285, 346, 378, 403, 425, 256, , 260
ESP10, 296, 352, 383, 410, 428, 258, , 262
ESP10, 291, 347, 379, 404, 423, 260, , 264
ESP10, 289, 344, 374, 402, 419, 262, , 266
ESP10, 290, 345, 375, 403, 420, 264, , 268
ESP10, 288, 342, 373, 398, 414, 266, , 270
ESP10, 287, 342, 374, 398, 414, 268, , 272
ESP10, 286, 344, 374, 397, 414, 270, , 274
ESP10, 286, 345, 374, 397, 414, 273, , 277
ESP10, 291, 352, 378, 403, 421, 275, , 279
ESP10, 291, 355, 378, 404, 422, 277, , 281
ESP10, 291, 356, 380, 404, 422, 279, , 283
ESP10, 293, 357, 381, 405, 423, 281, , 285
ESP10, 296, 362, 381, 406, 425, 283, , 287
ESP10, 300, 362, 380, 406, 432, 285, , 289
ESP10, 304, 362, 380, 406, 431, 287, , 291
ESP10, 304, 359, 378, 401, 428, 289, , 293
ESP10, 310, 360, 378, 404, 429, 291, , 295
ESP10, 315, 363, 381, 409, 431, 293, , 297
ESP10, 319, 363, 384, 410, 431, 296, , 300
ESP10, 325, 369, 392, 416, 436, 298, , 302
ESP10, 325, 367, 390, 413, 433, 300, , 304
ESP10, 330, 371, 397, 416, 436, 302, , 306
ESP10, 331, 374, 401, 419, 438, 304, , 308
ESP10, 338, 378, 409, 427, 442, 306, , 310
ESP10, 335, 382, 407, 426, 440, 308, , 312
ESP10, 331, 381, 403, 423, 436, 310, , 314
ESP10, 335, 382, 404, 425, 436, 312, , 316
ESP10, 339, 384, 404, 427, 436, 314, , 318
ESP10, 346, 386, 406, 430, 437, 316, , 320
ESP10, 348, 388, 407, 431, 440, 318, , 322
ESP10, 349, 392, 408, 432, 443, 321, , 325
ESP10, 347, 391, 410, 428, 443, 323, , 327
ESP10, 344, 387, 409, 424, 440, 325, , 329
ESP10, 342, 383, 406, 422, 440, 327, , 331
ESP10, 348, 384, 406, 420, 440, 329, , 333
ESP10, 348, 384, 408, 421, 440, 331, , 335
ESP10, 348, 382, 408, 419, 439, 333, , 337
ESP10, 355, 386, 411, 423, 442, 335, , 339
ESP10, 356, 384, 408, 421, 439, 337, , 341
ESP10, 359, 384, 409, 423, 439, 339, , 343
ESP10, 362, 386, 410, 424, 440, 341, , 345
ESP10, 366, 387, 413, 428, 442, 344, , 348
ESP10, 359, 382, 407, 424, 437, 346, , 350
ESP10, 361, 387, 409, 426, 438, 348, , 352
ESP10, 361, 388, 412, 426, 438, 350, , 354
ESP10, 357, 383, 408, 423, 433, 352, , 356
ESP10, 358, 382, 407, 422, 433, 354, , 358
ESP10, 365, 387, 414, 427, 439, 356, , 360
ESP10, 355, 376, 403, 419, 429, 358, , 362
ESP10, 362, 383, 411, 427, 437, 360, , 364
ESP10, 357, 378, 404, 420, 432, 362, , 366
ESP10, 362, 382, 408, 425, 436, 364, , 368
ESP10, 362, 382, 407, 425, 435, 366, , 370
ESP10, 369, 391, 417, 432, 443, 369, , 373
ESP10, 373, 397, 424, 437, 448, 371, , 375
ESP10, 375, 399, 426, 440, 450, 373, , 377
ESP10, 375, 399, 425, 440, 449, 375, , 379
ESP10, 373, 397, 422, 436, 446, 377, , 381
ESP10, 371, 392, 418, 436, 443, 379, , 383
ESP10, 371, 391, 419, 435, 442, 381, , 385
ESP10, 373, 392, 419, 436, 444, 383, , 387
ESP10, 375, 389, 416, 434, 442, 385, , 389
ESP10, 374, 384, 413, 430, 439, 387, , 391
ESP10, 369, 375, 403, 421, 430, 389, , 393
ESP10, 366, 374, 398, 418, 425, 392, , 396
ESP10, 365, 373, 394, 416, 423, 394, , 398
ESP10, 360, 372, 392, 411, 419, 396, , 400
ESP10, 347, 360, 381, 399, 407, 398, , 402
ESP10, 349, 360, 383, 399, 407, 400, , 404
ESP10, 356, 367, 388, 403, 411, 402, , 406
ESP10, 362, 371, 393, 406, 415, 404, , 408
ESP10, 362, 371, 392, 405, 416, 406, , 410
ESP10, 363, 375, 392, 406, 417, 408, , 412
ESP10, 361, 371, 387, 402, 415, 410, , 414
ESP10, 358, 368, 384, 400, 413, 412, , 416
ESP10, 353, 367, 380, 397, 409, 414, , 418
ESP10, 369, 385, 398, 414, 425, 417, , 421
ESP10, 371, 387, 399, 415, 426, 419, , 423
ESP10, 373, 386, 401, 417, 425, 421, , 425
ESP10, 376, 390, 403, 418, 425, 423, , 427
ESP10, 378, 392, 405, 418, 426, 425, , 429
ESP10, 380, 393, 405, 419, 428, 427, , 431
ESP10, 382, 394, 406, 420, 430, 429, , 433
ESP10, 377, 390, 403, 414, 425, 431, , 435
ESP10, 376, 388, 400, 412, 422, 433, , 437
ESP10, 379, 392, 403, 417, 425, 435, , 439
ESP10, 379, 392, 402, 416, 424, 437, , 441
ESP10, 381, 393, 405, 418, 424, 440, , 444
ESP10, 384, 396, 408, 420, 426, 442, , 446
ESP10, 384, 396, 409, 421, 427, 444, , 448
ESP10, 385, 396, 409, 423, 428, 446, , 450
ESP10, 388, 401, 412, 426, 430, 448, , 452
ESP10, 388, 401, 411, 426, 431, 450, , 454
ESP10, 391, 403, 415, 428, 433, 452, , 456
ESP10, 392, 405, 415, 428, 434, 454, , 458
ESP10, 392, 405, 415, 428, 434, 456, , 460
ESP10, 414, 426, 438, 450, 456, 458, , 462
ESP10, 415, 428, 439, 451, 457, 460, , 464
ESP10, 413, 426, 437, 449, 456, 462, , 466
ESP10, 409, 422, 433, 445, 452, 465, , 469
ESP10, 409, 422, 431, 443, 449, 467, , 471
ESP10, 410, 423, 434, 445, 450, 469, , 473
ESP10, 410, 423, 434, 445, 450, 471, , 475
ESP10, 410, 423, 434, 444, 449, 473, , 477
ESP10, 412, 426, 436, 446, 451, 475, , 479
ESP10, 418, 431, 442, 452, 456, 477, , 481
ESP10, 423, 433, 443, 452, 456, 479, , 483
ESP10, 431, 441, 450, 458, 462, 481, , 485
ESP10, 429, 440, 449, 457, 461, 483, , 487
ESP10, 431, 441, 451, 458, 461, 485, , 489
ESP10, 442, 450, 459, 467, 470, 488, , 492
ESP10, 442, 453, 459, 467, 469, 490, , 494
ESP10, 445, 454, 460, 467, 470, 492, , 496
ESP10, 448, 456, 462, 470, 472, 494, , 498
ESP10, 448, 456, 462, 470, 472, 496, , 500
ESP10, 448, 456, 461, 469, 472, 498, , 502
ESP10, 435, 446, 451, 455, 459, 500, , 504
ESP10, 435, 447, 452, 455, 459, 502, , 506
ESP10, 436, 446, 452, 455, 459, 504, , 508
ESP10, 439, 450, 454, 458, 463, 506, , 510
ESP10, 439, 449, 454, 458, 463, 508, , 512
ESP10, 440, 450, 455, 459, 464, 510, , 514
ESP10, 450, 458, 464, 469, 473, 513, , 517
ESP10, 450, 458, 464, 469, 473, 515, , 519
ESP10, 450, 458, 464, 470, 473, 517, , 521
ESP10, 451, 458, 465, 470, 473, 519, , 523
ESP10, 452, 458, 466, 470, 473, 521, , 525
ESP10, 453, 458, 467, 470, 473, 523, , 527
ESP10, 453, 458, 467, 471, 474, 525, , 529
ESP10, 453, 458, 466, 470, 474, 527, , 531
ESP10, 453, 458, 466, 471, 474, 529, , 533
ESP10, 454, 459, 467, 472, 475, 531, , 535
ESP10, 452, 459, 467, 471, 474, 533, , 537
ESP10, 450, 457, 465, 468, 472, 536, , 540
ESP10, 450, 458, 465, 469, 472, 538, , 542
ESP10, 451, 459, 465, 469, 472, 540, , 544
ESP10, 450, 458, 464, 468, 471, 542, , 546
ESP10, 450, 457, 464, 468, 470, 544, , 548
ESP10, 451, 458, 464, 468, 471, 546, , 550
ESP10, 452, 459, 464, 469, 471, 548, , 552
ESP10, 451, 457, 463, 467, 470, 550, , 554
ESP10, 453, 458, 464, 468, 470, 552, , 556
ESP10, 452, 458, 463, 467, 470, 554, , 558
ESP10, 455, 459, 465, 469, 471, 556, , 560
ESP10, 456, 461, 465, 469, 472, 558, , 562
ESP10, 457, 461, 465, 469, 471, 561, , 565
ESP10, 457, 460, 465, 468, 470, 563, , 567
ESP10, 457, 461, 465, 468, 470, 565, , 569
ESP10, 457, 462, 465, 468, 470, 567, , 571
ESP10, 457, 462, 466, 468, 471, 569, , 573
ESP10, 453, 459, 462, 465, 467, 571, , 575
ESP10, 457, 462, 464, 467, 469, 573, , 577
ESP10, 458, 463, 465, 468, 469, 575, , 579
ESP10, 459, 464, 467, 469, 470, 577, , 581
ESP10, 459, 464, 467, 469, 470, 579, , 583
ESP10, 459, 464, 467, 469, 469, 581, , 585
ESP10, 461, 465, 468, 470, 471, 584, , 588
ESP10, 460, 464, 467, 469, 470, 586, , 590
ESP10, 457, 462, 465, 466, 467, 588, , 592
ESP10, 457, 461, 464, 465, 466, 590, , 594
ESP10, 456, 460, 462, 463, 464, 592, , 596
ESP10, 458, 462, 465, 466, 466, 594, , 598
ESP10, 458, 462, 464, 465, 466, 596, , 600
ESP10, 458, 462, 464, 465, 466, 598, , 602
ESP10, 459, 463, 465, 466, 466, 600, , 604
ESP10, 459, 464, 465, 466, 466, 602, , 606
ESP10, 459, 464, 465, 466, 467, 604, , 608
ESP10, 460, 465, 466, 467, 467, 607, , 611
ESP10, 460, 465, 466, 467, 467, 609, , 613
ESP10, 460, 465, 466, 467, 467, 611, , 615
ESP10, 460, 464, 466, 467, 467, 613, , 617
ESP10, 460, 465, 466, 467, 467, 615, , 619
ESP10, 460, 464, 466, 466, 466, 617, , 621
ESP10, 459, 465, 465, 466, 466, 619, , 623
ESP10, 460, 465, 465, 466, 466, 621, , 625
ESP10, 459, 465, 465, 465, 465, 623, , 627
ESP10, 460, 465, 465, 465, 465, 625, , 629
ESP10, 461, 465, 466, 466, 466, 627, , 631
ESP10, 461, 465, 466, 466, 466, 629, , 633
ESP10, 461, 465, 465, 466, 466, 632, , 636
ESP10, 462, 465, 466, 466, 466, 634, , 638
ESP10, 462, 465, 465, 465, 465, 636, , 640
ESP10, 461, 465, 465, 465, 465, 638, , 642
ESP10, 461, 465, 465, 465, 465, 640, , 644
ESP10, 461, 465, 465, 465, 465, 642, , 646
ESP10, 460, 464, 464, 464, 464, 644, , 648
ESP10, 461, 464, 465, 465, 465, 646, , 650
ESP10, 460, 464, 464, 464, 464, 648, , 652
ESP10, 461, 464, 464, 464, 464, 650, , 654
ESP10, 461, 464, 464, 464, 464, 652, , 656
ESP10, 461, 464, 464, 464, 464, 655, , 659
ESP10, 461, 464, 464, 464, 464, 657, , 661
ESP10, 460, 463, 463, 463, 463, 659, , 663
ESP10, 460, 463, 463, 463, 463, 661, , 665
ESP10, 459, 463, 463, 463, 463, 663, , 667
ESP10, 459, 463, 463, 463, 463, 665, , 669
ESP10, 459, 462, 463, 463, 463, 667, , 671
ESP10, 459, 463, 463, 463, 463, 669, , 673
ESP10, 459, 463, 463, 463, 463, 671, , 675
ESP10, 459, 462, 462, 463, 463, 673, , 677
ESP10, 459, 462, 462, 462, 463, 675, , 679
ESP10, 459, 462, 462, 462, 463, 677, , 681
ESP10, 459, 462, 462, 462, 463, 680, , 684
ESP10, 459, 462, 462, 462, 462, 682, , 686
ESP10, 458, 462, 462, 462, 462, 684, , 688
ESP10, 458, 462, 462, 462, 462, 686, , 690
ESP10, 458, 462, 462, 462, 462, 688, , 692
ESP10, 458, 461, 462, 462, 462, 690, , 694
ESP10, 457, 461, 461, 461, 461, 692, , 696
ESP10, 457, 461, 461, 461, 461, 694, , 698
ESP10, 457, 461, 461, 461, 461, 696, , 700
ESP10, 457, 461, 461, 461, 461, 698, , 702
ESP10, 457, 461, 461, 461, 461, 700, , 704
ESP10, 457, 461, 461, 461, 461, 703, , 707
ESP10, 457, 461, 461, 461, 461, 705, , 709
ESP10, 457, 461, 461, 461, 461, 707, , 711
ESP10, 457, 460, 461, 461, 461, 709, , 713
ESP10, 457, 461, 461, 461, 461, 711, , 715
ESP10, 457, 461, 461, 461, 461, 713, , 717
ESP10, 457, 461, 461, 461, 461, 715, , 719
ESP10, 457, 460, 461, 461, 461, 717, , 721
ESP10, 457, 460, 461, 461, 461, 719, , 723
ESP10, 456, 460, 460, 460, 460, 721, , 725
ESP10, 456, 460, 460, 460, 460, 723, , 727
ESP10, 456, 460, 460, 460, 460, 725, , 729
ESP10, 457, 460, 460, 460, 460, 728, , 732
ESP10, 456, 460, 460, 460, 460, 730, , 734
ESP10, 456, 460, 460, 460, 460, 732, , 736
ESP10, 457, 460, 460, 460, 460, 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/CLEW1W_SQIN.ESPF10.csv
CLEW1W_SQIN.ESPF0.csv|2026-08-16
CLEW1W_SQIN.ESPF10.csv|2026-08-16
CLEW1W_SQIN.ESPFM.csv|2026-08-16
APR-SEP
CLE ELUM - NEAR ROSLYN
(
CLEW1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
280
394
94
564
419
APR-JUL
269
379
98
514
386
APR-AUG
274
388
95
549
407
JAN-SEP
351
511
94
701
545
JAN-JUL
340
485
95
631
512
OCT-SEP
437
645
96
843
672
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/CLEW1W_SQIN.ESPF10.csv
CLEW1W_SQIN.ESPF0.csv|2026-08-16
CLEW1W_SQIN.ESPF10.csv|2026-08-16
CLEW1W_SQIN.ESPFM.csv|2026-08-16
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
