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Water Year
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COWLITZ - AT CASTLE ROCK
(
CASW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-09-21
Issued:
2026-09-21
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1508
1508
60
1508
2504
APR-JUL
1351
1351
61
1351
2213
APR-AUG
1441
1441
61
1441
2366
JAN-SEP
4264
4264
87
4264
4929
JAN-JUL
4107
4107
89
4107
4638
OCT-SEP
7075
7075
105
7075
6739
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-09-21
Issued:
2026-09-21
Hide Forecast
APR-SEP
1508
1509
60
1515
2504
APR-JUL
1351
1351
61
1351
2213
APR-AUG
1441
1441
61
1441
2366
JAN-SEP
4263
4264
87
4271
4929
JAN-JUL
4107
4107
89
4107
4638
OCT-SEP
7075
7076
105
7083
6739
Reference
ESP with 0 Days QPF
Ensemble:
2026-09-21
Issued:
2026-09-21
Hide Forecast
APR-SEP
1506
1508
60
1535
2504
APR-JUL
1351
1351
61
1351
2213
APR-AUG
1441
1441
61
1441
2366
JAN-SEP
4261
4263
86
4291
4929
JAN-JUL
4107
4107
89
4107
4638
OCT-SEP
7073
7075
105
7103
6739
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 242, 289, 338, 387, 431, 70, , 74
ESP10, 242, 289, 338, 387, 431, 72, , 76
ESP10, 242, 289, 338, 387, 431, 74, , 78
ESP10, 242, 289, 338, 387, 431, 76, , 80
ESP10, 242, 289, 338, 387, 431, 77, , 81
ESP10, 242, 289, 338, 387, 431, 79, , 83
ESP10, 241, 288, 337, 385, 430, 81, , 85
ESP10, 241, 288, 337, 385, 430, 83, , 87
ESP10, 242, 288, 338, 386, 431, 85, , 89
ESP10, 242, 288, 338, 386, 430, 87, , 91
ESP10, 241, 288, 338, 386, 430, 89, , 93
ESP10, 241, 288, 337, 385, 430, 91, , 95
ESP10, 241, 288, 337, 385, 431, 92, , 96
ESP10, 241, 289, 338, 386, 432, 94, , 98
ESP10, 235, 281, 329, 377, 422, 96, , 100
ESP10, 234, 280, 329, 377, 422, 98, , 102
ESP10, 230, 277, 327, 376, 420, 100, , 104
ESP10, 230, 278, 327, 376, 423, 102, , 106
ESP10, 230, 278, 327, 376, 423, 104, , 108
ESP10, 231, 279, 330, 376, 423, 106, , 110
ESP10, 228, 277, 328, 374, 421, 107, , 111
ESP10, 232, 280, 330, 377, 424, 109, , 113
ESP10, 231, 279, 330, 376, 424, 111, , 115
ESP10, 231, 279, 330, 376, 424, 113, , 117
ESP10, 232, 280, 330, 376, 425, 115, , 119
ESP10, 232, 280, 330, 377, 427, 117, , 121
ESP10, 232, 280, 330, 377, 426, 119, , 123
ESP10, 232, 281, 330, 378, 428, 121, , 125
ESP10, 232, 281, 330, 378, 424, 122, , 126
ESP10, 231, 280, 330, 377, 422, 124, , 128
ESP10, 229, 278, 329, 375, 420, 126, , 130
ESP10, 231, 279, 330, 377, 421, 128, , 132
ESP10, 232, 279, 329, 377, 421, 130, , 134
ESP10, 235, 281, 330, 379, 423, 132, , 136
ESP10, 234, 281, 330, 379, 423, 134, , 138
ESP10, 235, 282, 330, 380, 424, 136, , 140
ESP10, 235, 281, 329, 380, 425, 137, , 141
ESP10, 233, 278, 327, 377, 422, 139, , 143
ESP10, 232, 277, 325, 376, 422, 141, , 145
ESP10, 234, 278, 325, 377, 425, 143, , 147
ESP10, 237, 281, 328, 379, 428, 145, , 149
ESP10, 240, 284, 330, 382, 429, 147, , 151
ESP10, 238, 283, 327, 381, 426, 149, , 153
ESP10, 245, 289, 333, 390, 432, 151, , 155
ESP10, 244, 288, 335, 389, 431, 152, , 156
ESP10, 243, 287, 335, 389, 430, 154, , 158
ESP10, 245, 288, 335, 390, 431, 156, , 160
ESP10, 249, 291, 337, 394, 433, 158, , 162
ESP10, 248, 291, 336, 394, 432, 160, , 164
ESP10, 249, 291, 336, 394, 432, 162, , 166
ESP10, 251, 292, 336, 392, 430, 164, , 168
ESP10, 251, 287, 336, 392, 430, 166, , 170
ESP10, 250, 289, 338, 390, 429, 167, , 171
ESP10, 254, 293, 342, 394, 431, 169, , 173
ESP10, 253, 291, 341, 393, 430, 171, , 175
ESP10, 255, 295, 344, 396, 432, 173, , 177
ESP10, 255, 294, 344, 395, 431, 175, , 179
ESP10, 254, 293, 343, 394, 430, 177, , 181
ESP10, 255, 295, 344, 394, 428, 179, , 183
ESP10, 250, 291, 341, 388, 423, 181, , 185
ESP10, 257, 298, 345, 394, 430, 182, , 186
ESP10, 260, 301, 349, 398, 436, 184, , 188
ESP10, 259, 303, 350, 397, 438, 186, , 190
ESP10, 262, 308, 358, 400, 440, 188, , 192
ESP10, 269, 314, 366, 407, 447, 190, , 194
ESP10, 267, 313, 366, 405, 445, 192, , 196
ESP10, 272, 318, 372, 409, 450, 194, , 198
ESP10, 275, 319, 373, 410, 455, 196, , 200
ESP10, 278, 321, 374, 410, 456, 197, , 201
ESP10, 273, 318, 369, 405, 451, 199, , 203
ESP10, 263, 307, 358, 392, 439, 201, , 205
ESP10, 261, 305, 356, 390, 437, 203, , 207
ESP10, 260, 304, 355, 391, 436, 205, , 209
ESP10, 267, 309, 359, 396, 441, 207, , 211
ESP10, 267, 310, 359, 396, 441, 209, , 213
ESP10, 269, 313, 359, 398, 441, 211, , 215
ESP10, 264, 308, 354, 393, 438, 213, , 217
ESP10, 263, 309, 357, 392, 438, 214, , 218
ESP10, 263, 309, 358, 393, 438, 216, , 220
ESP10, 260, 307, 357, 394, 437, 218, , 222
ESP10, 269, 317, 367, 402, 445, 220, , 224
ESP10, 267, 316, 366, 402, 443, 222, , 226
ESP10, 273, 321, 372, 410, 449, 224, , 228
ESP10, 273, 321, 372, 410, 451, 226, , 230
ESP10, 269, 316, 369, 407, 449, 228, , 232
ESP10, 261, 311, 366, 402, 445, 229, , 233
ESP10, 264, 313, 370, 404, 448, 231, , 235
ESP10, 269, 316, 374, 408, 450, 233, , 237
ESP10, 267, 315, 375, 409, 450, 235, , 239
ESP10, 274, 319, 377, 410, 451, 237, , 241
ESP10, 279, 323, 382, 412, 452, 239, , 243
ESP10, 275, 318, 378, 408, 449, 241, , 245
ESP10, 272, 313, 374, 403, 446, 243, , 247
ESP10, 271, 310, 371, 402, 443, 244, , 248
ESP10, 270, 309, 369, 405, 442, 246, , 250
ESP10, 264, 305, 367, 401, 438, 248, , 252
ESP10, 262, 303, 367, 400, 438, 250, , 254
ESP10, 263, 303, 368, 403, 440, 252, , 256
ESP10, 268, 310, 369, 406, 443, 254, , 258
ESP10, 260, 302, 360, 398, 436, 256, , 260
ESP10, 261, 310, 360, 399, 438, 258, , 262
ESP10, 261, 313, 360, 400, 438, 259, , 263
ESP10, 261, 315, 363, 401, 439, 261, , 265
ESP10, 260, 317, 366, 401, 443, 263, , 267
ESP10, 263, 321, 370, 404, 447, 265, , 269
ESP10, 262, 319, 373, 404, 446, 267, , 271
ESP10, 258, 316, 371, 402, 443, 269, , 273
ESP10, 264, 318, 375, 405, 445, 271, , 275
ESP10, 267, 320, 377, 407, 448, 273, , 277
ESP10, 277, 327, 382, 415, 451, 274, , 278
ESP10, 277, 325, 381, 413, 450, 276, , 280
ESP10, 280, 326, 384, 415, 451, 278, , 282
ESP10, 281, 327, 385, 418, 451, 280, , 284
ESP10, 283, 329, 388, 421, 453, 282, , 286
ESP10, 286, 329, 393, 427, 457, 284, , 288
ESP10, 287, 334, 395, 429, 460, 286, , 290
ESP10, 289, 335, 395, 429, 459, 288, , 292
ESP10, 286, 333, 393, 426, 454, 289, , 293
ESP10, 288, 335, 399, 429, 457, 291, , 295
ESP10, 289, 337, 403, 433, 458, 293, , 297
ESP10, 294, 344, 410, 439, 465, 295, , 299
ESP10, 291, 336, 403, 431, 458, 297, , 301
ESP10, 292, 334, 401, 430, 457, 299, , 303
ESP10, 296, 340, 404, 435, 461, 301, , 305
ESP10, 298, 345, 407, 437, 468, 303, , 307
ESP10, 296, 341, 405, 435, 464, 304, , 308
ESP10, 292, 337, 406, 433, 463, 306, , 310
ESP10, 299, 341, 414, 438, 469, 308, , 312
ESP10, 298, 337, 412, 434, 464, 310, , 314
ESP10, 298, 338, 412, 436, 466, 312, , 316
ESP10, 296, 340, 411, 437, 466, 314, , 318
ESP10, 295, 344, 413, 438, 469, 316, , 320
ESP10, 286, 336, 407, 427, 462, 318, , 322
ESP10, 289, 338, 410, 429, 465, 319, , 323
ESP10, 292, 338, 406, 428, 464, 321, , 325
ESP10, 284, 329, 397, 424, 456, 323, , 327
ESP10, 289, 333, 403, 426, 460, 325, , 329
ESP10, 297, 338, 411, 432, 465, 327, , 331
ESP10, 279, 324, 399, 419, 452, 329, , 333
ESP10, 286, 330, 405, 425, 460, 331, , 335
ESP10, 285, 325, 402, 425, 459, 333, , 337
ESP10, 290, 330, 406, 431, 468, 334, , 338
ESP10, 294, 335, 408, 436, 466, 336, , 340
ESP10, 302, 344, 413, 443, 473, 338, , 342
ESP10, 307, 349, 418, 448, 478, 340, , 344
ESP10, 300, 342, 410, 442, 470, 342, , 346
ESP10, 305, 339, 407, 440, 467, 344, , 348
ESP10, 302, 337, 404, 438, 466, 346, , 350
ESP10, 301, 336, 406, 437, 464, 348, , 352
ESP10, 309, 345, 411, 444, 471, 350, , 354
ESP10, 310, 348, 414, 447, 475, 351, , 355
ESP10, 307, 346, 411, 444, 473, 353, , 357
ESP10, 295, 334, 403, 435, 461, 355, , 359
ESP10, 286, 321, 396, 423, 449, 357, , 361
ESP10, 286, 319, 397, 420, 445, 359, , 363
ESP10, 285, 315, 393, 416, 441, 361, , 365
ESP10, 284, 313, 390, 417, 439, 363, , 367
ESP10, 284, 310, 387, 417, 438, 365, , 369
ESP10, 276, 307, 383, 418, 432, 366, , 370
ESP10, 290, 318, 391, 424, 444, 368, , 372
ESP10, 277, 304, 377, 410, 434, 370, , 374
ESP10, 280, 308, 370, 403, 430, 372, , 376
ESP10, 289, 323, 391, 421, 450, 374, , 378
ESP10, 288, 321, 389, 419, 452, 376, , 380
ESP10, 285, 316, 389, 417, 453, 378, , 382
ESP10, 274, 306, 379, 404, 440, 380, , 384
ESP10, 272, 306, 376, 403, 439, 381, , 385
ESP10, 275, 313, 386, 410, 445, 383, , 387
ESP10, 281, 322, 389, 416, 449, 385, , 389
ESP10, 283, 327, 389, 419, 447, 387, , 391
ESP10, 287, 328, 388, 417, 446, 389, , 393
ESP10, 294, 333, 388, 418, 449, 391, , 395
ESP10, 299, 337, 395, 419, 453, 393, , 397
ESP10, 297, 326, 386, 410, 447, 395, , 399
ESP10, 299, 330, 385, 410, 447, 396, , 400
ESP10, 306, 344, 393, 417, 453, 398, , 402
ESP10, 300, 340, 384, 413, 443, 400, , 404
ESP10, 307, 345, 390, 422, 448, 402, , 406
ESP10, 309, 346, 394, 427, 449, 404, , 408
ESP10, 312, 344, 394, 426, 448, 406, , 410
ESP10, 317, 349, 400, 431, 453, 408, , 412
ESP10, 322, 358, 405, 439, 459, 410, , 414
ESP10, 320, 359, 404, 440, 457, 411, , 415
ESP10, 337, 367, 412, 448, 462, 413, , 417
ESP10, 338, 366, 412, 450, 464, 415, , 419
ESP10, 340, 368, 412, 451, 467, 417, , 421
ESP10, 344, 372, 418, 453, 471, 419, , 423
ESP10, 357, 383, 431, 464, 483, 421, , 425
ESP10, 346, 374, 421, 456, 475, 423, , 427
ESP10, 337, 359, 405, 442, 461, 425, , 429
ESP10, 341, 356, 401, 438, 457, 426, , 430
ESP10, 337, 352, 395, 435, 452, 428, , 432
ESP10, 341, 354, 392, 434, 450, 430, , 434
ESP10, 349, 366, 395, 437, 453, 432, , 436
ESP10, 348, 366, 402, 436, 451, 434, , 438
ESP10, 353, 374, 407, 440, 455, 436, , 440
ESP10, 356, 387, 414, 445, 459, 438, , 442
ESP10, 356, 389, 417, 447, 459, 440, , 444
ESP10, 360, 390, 417, 446, 457, 441, , 445
ESP10, 361, 394, 416, 447, 456, 443, , 447
ESP10, 367, 400, 417, 448, 457, 445, , 449
ESP10, 367, 399, 417, 446, 455, 447, , 451
ESP10, 366, 396, 416, 445, 456, 449, , 453
ESP10, 366, 398, 417, 445, 455, 451, , 455
ESP10, 374, 405, 421, 446, 456, 453, , 457
ESP10, 378, 410, 431, 450, 458, 455, , 459
ESP10, 375, 410, 428, 447, 455, 456, , 460
ESP10, 379, 414, 429, 448, 456, 458, , 462
ESP10, 383, 417, 430, 448, 456, 460, , 464
ESP10, 384, 416, 433, 448, 456, 462, , 466
ESP10, 385, 420, 435, 449, 458, 464, , 468
ESP10, 388, 421, 437, 451, 460, 466, , 470
ESP10, 388, 422, 438, 454, 459, 468, , 472
ESP10, 391, 422, 439, 455, 459, 470, , 474
ESP10, 395, 425, 441, 455, 459, 472, , 476
ESP10, 400, 428, 447, 457, 461, 473, , 477
ESP10, 402, 429, 448, 457, 461, 475, , 479
ESP10, 402, 429, 449, 457, 460, 477, , 481
ESP10, 401, 428, 450, 458, 460, 479, , 483
ESP10, 402, 428, 451, 458, 461, 481, , 485
ESP10, 405, 431, 453, 460, 464, 483, , 487
ESP10, 406, 431, 450, 459, 463, 485, , 489
ESP10, 403, 432, 449, 458, 462, 487, , 491
ESP10, 400, 432, 451, 460, 463, 488, , 492
ESP10, 392, 424, 443, 454, 458, 490, , 494
ESP10, 398, 428, 445, 456, 459, 492, , 496
ESP10, 389, 421, 441, 449, 453, 494, , 498
ESP10, 387, 417, 437, 446, 450, 496, , 500
ESP10, 401, 421, 440, 448, 451, 498, , 502
ESP10, 406, 422, 442, 450, 454, 500, , 504
ESP10, 402, 415, 436, 447, 450, 502, , 506
ESP10, 412, 428, 443, 450, 452, 503, , 507
ESP10, 412, 426, 441, 449, 452, 505, , 509
ESP10, 418, 431, 445, 451, 454, 507, , 511
ESP10, 421, 437, 448, 453, 455, 509, , 513
ESP10, 423, 439, 447, 452, 455, 511, , 515
ESP10, 423, 438, 446, 451, 453, 513, , 517
ESP10, 424, 438, 446, 450, 452, 515, , 519
ESP10, 431, 443, 450, 454, 456, 517, , 521
ESP10, 432, 444, 450, 454, 456, 518, , 522
ESP10, 437, 446, 454, 459, 461, 520, , 524
ESP10, 438, 449, 454, 459, 461, 522, , 526
ESP10, 439, 451, 456, 459, 461, 524, , 528
ESP10, 435, 443, 447, 451, 453, 526, , 530
ESP10, 437, 447, 450, 453, 454, 528, , 532
ESP10, 434, 445, 449, 451, 452, 530, , 534
ESP10, 436, 447, 450, 452, 454, 532, , 536
ESP10, 436, 450, 453, 456, 458, 533, , 537
ESP10, 434, 447, 450, 452, 454, 535, , 539
ESP10, 432, 440, 443, 445, 446, 537, , 541
ESP10, 435, 442, 444, 446, 447, 539, , 543
ESP10, 436, 443, 445, 447, 448, 541, , 545
ESP10, 437, 444, 446, 448, 448, 543, , 547
ESP10, 431, 437, 440, 442, 443, 545, , 549
ESP10, 432, 437, 441, 443, 443, 547, , 551
ESP10, 432, 438, 441, 443, 443, 548, , 552
ESP10, 432, 438, 441, 443, 443, 550, , 554
ESP10, 433, 439, 442, 444, 444, 552, , 556
ESP10, 433, 439, 442, 444, 444, 554, , 558
ESP10, 433, 439, 442, 444, 444, 556, , 560
ESP10, 440, 443, 445, 446, 447, 558, , 562
ESP10, 439, 443, 445, 446, 447, 560, , 564
ESP10, 438, 442, 444, 445, 446, 562, , 566
ESP10, 438, 441, 444, 444, 445, 563, , 567
ESP10, 439, 442, 444, 445, 446, 565, , 569
ESP10, 437, 439, 441, 443, 443, 567, , 571
ESP10, 437, 440, 442, 443, 444, 569, , 573
ESP10, 440, 443, 445, 446, 447, 571, , 575
ESP10, 440, 442, 444, 445, 446, 573, , 577
ESP10, 439, 441, 444, 444, 445, 575, , 579
ESP10, 438, 441, 443, 444, 445, 577, , 581
ESP10, 438, 441, 443, 444, 445, 578, , 582
ESP10, 444, 448, 450, 452, 453, 580, , 584
ESP10, 444, 447, 449, 450, 450, 582, , 586
ESP10, 445, 447, 449, 450, 451, 584, , 588
ESP10, 446, 447, 449, 450, 451, 586, , 590
ESP10, 445, 447, 449, 450, 451, 588, , 592
ESP10, 445, 447, 449, 450, 451, 590, , 594
ESP10, 446, 447, 450, 450, 451, 592, , 596
ESP10, 446, 448, 450, 451, 452, 593, , 597
ESP10, 446, 448, 450, 451, 452, 595, , 599
ESP10, 446, 448, 450, 451, 452, 597, , 601
ESP10, 446, 448, 450, 451, 452, 599, , 603
ESP10, 446, 448, 450, 451, 452, 601, , 605
ESP10, 446, 448, 450, 451, 452, 603, , 607
ESP10, 446, 448, 450, 451, 452, 605, , 609
ESP10, 446, 448, 450, 451, 452, 607, , 611
ESP10, 447, 449, 451, 451, 452, 609, , 613
ESP10, 447, 449, 451, 452, 453, 610, , 614
ESP10, 447, 449, 451, 452, 453, 612, , 616
ESP10, 448, 449, 452, 452, 453, 614, , 618
ESP10, 439, 442, 444, 446, 447, 616, , 620
ESP10, 447, 449, 451, 452, 453, 618, , 622
ESP10, 448, 450, 452, 453, 453, 620, , 624
ESP10, 449, 451, 453, 454, 455, 622, , 626
ESP10, 449, 451, 453, 455, 456, 624, , 628
ESP10, 449, 451, 453, 455, 456, 625, , 629
ESP10, 446, 447, 449, 450, 451, 627, , 631
ESP10, 447, 449, 451, 452, 453, 629, , 633
ESP10, 448, 450, 452, 453, 454, 631, , 635
ESP10, 448, 450, 451, 452, 453, 633, , 637
ESP10, 448, 450, 452, 453, 454, 635, , 639
ESP10, 448, 450, 452, 453, 454, 637, , 641
ESP10, 449, 451, 453, 455, 456, 639, , 643
ESP10, 449, 452, 454, 456, 457, 640, , 644
ESP10, 450, 452, 455, 456, 457, 642, , 646
ESP10, 449, 452, 454, 455, 456, 644, , 648
ESP10, 449, 452, 454, 455, 456, 646, , 650
ESP10, 449, 452, 454, 455, 456, 648, , 652
ESP10, 449, 452, 454, 455, 456, 650, , 654
ESP10, 449, 452, 454, 455, 456, 652, , 656
ESP10, 447, 449, 451, 452, 452, 654, , 658
ESP10, 447, 449, 451, 452, 453, 655, , 659
ESP10, 447, 449, 451, 452, 453, 657, , 661
ESP10, 441, 444, 446, 447, 448, 659, , 663
ESP10, 441, 444, 446, 448, 448, 661, , 665
ESP10, 441, 444, 447, 448, 449, 663, , 667
ESP10, 441, 444, 447, 448, 448, 665, , 669
ESP10, 441, 444, 447, 448, 448, 667, , 671
ESP10, 450, 452, 454, 455, 455, 669, , 673
ESP10, 451, 453, 455, 456, 456, 670, , 674
ESP10, 448, 450, 452, 453, 453, 672, , 676
ESP10, 447, 450, 451, 452, 453, 674, , 678
ESP10, 449, 451, 453, 454, 454, 676, , 680
ESP10, 449, 451, 452, 453, 454, 678, , 682
ESP10, 442, 445, 447, 449, 449, 680, , 684
ESP10, 443, 445, 448, 449, 450, 682, , 686
ESP10, 444, 447, 449, 451, 451, 684, , 688
ESP10, 441, 444, 446, 448, 448, 685, , 689
ESP10, 439, 443, 445, 447, 447, 687, , 691
ESP10, 439, 442, 445, 446, 447, 689, , 693
ESP10, 443, 445, 448, 449, 449, 691, , 695
ESP10, 450, 453, 455, 456, 456, 693, , 697
ESP10, 450, 453, 455, 456, 456, 695, , 699
ESP10, 451, 454, 456, 457, 457, 697, , 701
ESP10, 452, 454, 456, 457, 457, 699, , 703
ESP10, 452, 454, 456, 457, 457, 700, , 704
ESP10, 452, 454, 456, 457, 457, 702, , 706
ESP10, 453, 455, 457, 457, 457, 704, , 708
ESP10, 454, 456, 457, 457, 458, 706, , 710
ESP10, 448, 450, 451, 451, 451, 708, , 712
ESP10, 448, 450, 451, 451, 451, 710, , 714
ESP10, 449, 451, 452, 452, 452, 712, , 716
ESP10, 448, 450, 451, 451, 451, 714, , 718
ESP10, 453, 456, 457, 457, 457, 715, , 719
ESP10, 453, 456, 457, 457, 458, 717, , 721
ESP10, 455, 457, 458, 458, 458, 719, , 723
ESP10, 456, 457, 458, 458, 458, 721, , 725
ESP10, 457, 457, 458, 458, 458, 723, , 727
ESP10, 457, 458, 458, 458, 458, 725, , 729
ESP10, 458, 458, 458, 458, 458, 727, , 731
ESP10, 459, 459, 459, 459, 459, 729, , 733
ESP10, 459, 459, 459, 459, 459, 730, , 734
ESP10, 459, 459, 459, 459, 459, 732, , 736
ESP10, 459, 459, 459, 459, 459, 734, , 738
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
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Overlay
ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/CASW1W_SQIN.ESPF10.csv
CASW1W_SQIN.ESPF0.csv|2026-09-21
CASW1W_SQIN.ESPF10.csv|2026-09-21
CASW1W_SQIN.ESPFM.csv|2026-09-21
APR-SEP
COWLITZ - AT CASTLE ROCK
(
CASW1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-09-21
Issued:
2026-09-21
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1725
2382
95
3139
2504
APR-JUL
1506
2100
95
2718
2213
APR-AUG
1613
2231
94
2916
2366
JAN-SEP
3616
4809
98
6042
4929
JAN-JUL
3422
4457
96
5681
4638
OCT-SEP
4832
6465
96
8163
6739
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/CASW1W_SQIN.ESPF10.csv
CASW1W_SQIN.ESPF0.csv|2026-09-21
CASW1W_SQIN.ESPF10.csv|2026-09-21
CASW1W_SQIN.ESPFM.csv|2026-09-21
APR-SEP
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