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Archive:
Water Year
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COWLITZ - MAYFIELD RESERVOIR
(
MYDW1
)
Forecasts for Water Year
2025
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1243
1258
66
1281
1913
APR-JUL
1108
1110
66
1113
1682
JAN-SEP
2496
2511
73
2534
3419
JAN-JUL
2361
2363
74
2366
3188
OCT-SEP
3447
3463
76
3485
4585
Experimental
HEFS with 15 days EQPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
APR-SEP
1244
1257
66
1280
1913
APR-JUL
1106
1109
66
1113
1682
JAN-SEP
2497
2511
73
2533
3419
JAN-JUL
2360
2362
74
2366
3188
OCT-SEP
3448
3462
75
3484
4585
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
APR-SEP
1244
1259
66
1291
1913
APR-JUL
1105
1108
66
1117
1682
JAN-SEP
2497
2512
73
2544
3419
JAN-JUL
2358
2361
74
2370
3188
OCT-SEP
3448
3464
76
3495
4585
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 262, 308, 353, 414, 446, 70, , 74
ESP10, 262, 308, 353, 414, 446, 73, , 77
ESP10, 262, 308, 353, 414, 446, 75, , 79
ESP10, 262, 308, 353, 414, 446, 77, , 81
ESP10, 262, 308, 353, 414, 446, 80, , 84
ESP10, 262, 308, 353, 414, 446, 82, , 86
ESP10, 262, 308, 353, 414, 446, 84, , 88
ESP10, 262, 308, 353, 414, 446, 87, , 91
ESP10, 262, 308, 353, 414, 446, 89, , 93
ESP10, 262, 307, 353, 414, 446, 91, , 95
ESP10, 262, 307, 353, 413, 446, 94, , 98
ESP10, 262, 307, 353, 413, 446, 96, , 100
ESP10, 262, 308, 353, 414, 447, 98, , 102
ESP10, 262, 308, 353, 414, 448, 101, , 105
ESP10, 262, 308, 353, 414, 448, 103, , 107
ESP10, 262, 308, 355, 413, 448, 105, , 109
ESP10, 261, 307, 356, 413, 448, 108, , 112
ESP10, 261, 307, 356, 413, 448, 110, , 114
ESP10, 261, 307, 357, 413, 448, 113, , 117
ESP10, 258, 307, 352, 409, 446, 115, , 119
ESP10, 259, 307, 355, 411, 448, 117, , 121
ESP10, 259, 307, 361, 412, 448, 120, , 124
ESP10, 257, 307, 361, 410, 446, 122, , 126
ESP10, 258, 307, 361, 410, 447, 124, , 128
ESP10, 257, 307, 361, 409, 447, 127, , 131
ESP10, 255, 306, 359, 407, 445, 129, , 133
ESP10, 255, 306, 359, 408, 446, 131, , 135
ESP10, 256, 308, 361, 408, 445, 134, , 138
ESP10, 255, 308, 361, 409, 445, 136, , 140
ESP10, 255, 307, 361, 409, 444, 138, , 142
ESP10, 249, 301, 356, 404, 438, 141, , 145
ESP10, 246, 297, 351, 401, 434, 143, , 147
ESP10, 246, 295, 349, 399, 432, 145, , 149
ESP10, 244, 288, 343, 394, 426, 148, , 152
ESP10, 238, 284, 337, 389, 419, 150, , 154
ESP10, 243, 291, 346, 393, 425, 152, , 156
ESP10, 245, 296, 350, 395, 429, 155, , 159
ESP10, 244, 291, 345, 394, 425, 157, , 161
ESP10, 244, 291, 342, 394, 425, 159, , 163
ESP10, 247, 294, 344, 396, 429, 162, , 166
ESP10, 251, 297, 346, 398, 431, 164, , 168
ESP10, 255, 298, 347, 399, 432, 166, , 170
ESP10, 251, 291, 340, 394, 425, 169, , 173
ESP10, 251, 293, 339, 393, 426, 171, , 175
ESP10, 239, 281, 329, 378, 410, 173, , 177
ESP10, 233, 273, 321, 369, 402, 176, , 180
ESP10, 233, 273, 321, 369, 401, 178, , 182
ESP10, 244, 286, 332, 379, 411, 180, , 184
ESP10, 249, 290, 336, 385, 416, 183, , 187
ESP10, 251, 291, 336, 385, 416, 185, , 189
ESP10, 252, 293, 334, 383, 414, 187, , 191
ESP10, 258, 301, 341, 386, 418, 190, , 194
ESP10, 261, 305, 346, 390, 421, 192, , 196
ESP10, 259, 303, 345, 389, 418, 195, , 199
ESP10, 260, 306, 346, 389, 419, 197, , 201
ESP10, 261, 307, 349, 393, 420, 199, , 203
ESP10, 265, 308, 353, 396, 422, 202, , 206
ESP10, 269, 313, 357, 400, 423, 204, , 208
ESP10, 270, 317, 358, 402, 421, 206, , 210
ESP10, 270, 318, 359, 402, 421, 209, , 213
ESP10, 274, 321, 364, 403, 425, 211, , 215
ESP10, 272, 318, 362, 400, 423, 213, , 217
ESP10, 265, 312, 356, 395, 420, 216, , 220
ESP10, 262, 311, 353, 392, 419, 218, , 222
ESP10, 259, 312, 350, 390, 417, 220, , 224
ESP10, 254, 306, 345, 385, 411, 223, , 227
ESP10, 251, 306, 341, 382, 409, 225, , 229
ESP10, 257, 309, 342, 384, 418, 227, , 231
ESP10, 259, 309, 342, 385, 421, 230, , 234
ESP10, 256, 301, 342, 380, 412, 232, , 236
ESP10, 272, 317, 354, 390, 425, 234, , 238
ESP10, 277, 321, 358, 393, 432, 237, , 241
ESP10, 278, 322, 360, 394, 435, 239, , 243
ESP10, 273, 317, 355, 389, 435, 241, , 245
ESP10, 265, 310, 346, 383, 427, 244, , 248
ESP10, 265, 310, 345, 384, 427, 246, , 250
ESP10, 260, 306, 341, 381, 424, 248, , 252
ESP10, 255, 302, 338, 378, 421, 251, , 255
ESP10, 249, 298, 334, 375, 417, 253, , 257
ESP10, 247, 298, 334, 374, 417, 255, , 259
ESP10, 246, 297, 334, 374, 416, 258, , 262
ESP10, 249, 302, 337, 376, 419, 260, , 264
ESP10, 249, 301, 340, 375, 418, 262, , 266
ESP10, 247, 298, 339, 374, 416, 265, , 269
ESP10, 243, 295, 337, 370, 412, 267, , 271
ESP10, 242, 293, 338, 371, 412, 269, , 273
ESP10, 245, 296, 344, 375, 416, 272, , 276
ESP10, 245, 296, 345, 374, 416, 274, , 278
ESP10, 241, 291, 339, 370, 411, 276, , 280
ESP10, 249, 298, 346, 374, 415, 279, , 283
ESP10, 251, 300, 349, 376, 416, 281, , 285
ESP10, 256, 305, 352, 381, 418, 284, , 288
ESP10, 256, 303, 352, 381, 418, 286, , 290
ESP10, 262, 306, 356, 386, 423, 288, , 292
ESP10, 260, 307, 353, 386, 423, 293, , 297
ESP10, 262, 309, 355, 389, 426, 295, , 299
ESP10, 259, 307, 353, 388, 425, 298, , 302
ESP10, 259, 308, 353, 391, 426, 300, , 304
ESP10, 258, 307, 353, 393, 426, 302, , 306
ESP10, 258, 307, 353, 392, 427, 305, , 309
ESP10, 259, 309, 355, 394, 429, 307, , 311
ESP10, 260, 312, 358, 395, 431, 309, , 313
ESP10, 255, 310, 359, 390, 430, 312, , 316
ESP10, 255, 312, 361, 390, 432, 314, , 318
ESP10, 254, 311, 362, 389, 431, 316, , 320
ESP10, 254, 311, 361, 389, 431, 319, , 323
ESP10, 253, 310, 360, 389, 431, 321, , 325
ESP10, 255, 314, 361, 392, 431, 323, , 327
ESP10, 262, 318, 363, 394, 431, 326, , 330
ESP10, 266, 319, 363, 394, 433, 328, , 332
ESP10, 268, 319, 365, 393, 433, 330, , 334
ESP10, 264, 316, 363, 393, 429, 333, , 337
ESP10, 257, 311, 358, 387, 422, 335, , 339
ESP10, 257, 312, 360, 388, 423, 337, , 341
ESP10, 260, 315, 363, 392, 426, 340, , 344
ESP10, 257, 313, 362, 390, 422, 342, , 346
ESP10, 253, 313, 356, 384, 417, 344, , 348
ESP10, 253, 313, 358, 384, 415, 347, , 351
ESP10, 255, 313, 360, 386, 416, 349, , 353
ESP10, 256, 313, 361, 388, 416, 351, , 355
ESP10, 258, 315, 365, 389, 417, 354, , 358
ESP10, 259, 313, 364, 388, 417, 356, , 360
ESP10, 258, 310, 362, 385, 415, 358, , 362
ESP10, 260, 314, 366, 386, 418, 361, , 365
ESP10, 259, 313, 366, 387, 417, 363, , 367
ESP10, 255, 310, 362, 383, 414, 366, , 370
ESP10, 252, 306, 360, 379, 412, 368, , 372
ESP10, 247, 300, 357, 376, 408, 370, , 374
ESP10, 249, 302, 360, 380, 409, 373, , 377
ESP10, 250, 303, 362, 383, 412, 375, , 379
ESP10, 254, 310, 365, 386, 418, 377, , 381
ESP10, 254, 311, 367, 385, 418, 380, , 384
ESP10, 254, 311, 369, 386, 419, 382, , 386
ESP10, 257, 310, 369, 387, 420, 384, , 388
ESP10, 255, 308, 367, 385, 419, 387, , 391
ESP10, 257, 309, 368, 386, 421, 389, , 393
ESP10, 257, 307, 368, 385, 420, 391, , 395
ESP10, 259, 308, 369, 386, 421, 394, , 398
ESP10, 262, 310, 372, 390, 424, 396, , 400
ESP10, 264, 308, 371, 392, 424, 398, , 402
ESP10, 269, 311, 373, 394, 427, 401, , 405
ESP10, 270, 314, 372, 395, 427, 403, , 407
ESP10, 267, 313, 368, 392, 421, 405, , 409
ESP10, 266, 312, 367, 393, 420, 408, , 412
ESP10, 268, 312, 370, 394, 419, 410, , 414
ESP10, 272, 314, 372, 397, 421, 412, , 416
ESP10, 275, 314, 371, 398, 423, 415, , 419
ESP10, 281, 317, 373, 400, 425, 417, , 421
ESP10, 284, 314, 372, 399, 425, 419, , 423
ESP10, 282, 312, 368, 396, 424, 422, , 426
ESP10, 283, 312, 368, 396, 423, 424, , 428
ESP10, 280, 309, 366, 394, 421, 426, , 430
ESP10, 285, 312, 374, 397, 426, 429, , 433
ESP10, 281, 307, 369, 393, 419, 431, , 435
ESP10, 279, 303, 365, 390, 414, 433, , 437
ESP10, 272, 296, 357, 382, 406, 436, , 440
ESP10, 275, 300, 360, 387, 406, 438, , 442
ESP10, 278, 305, 363, 392, 408, 440, , 444
ESP10, 277, 304, 362, 391, 408, 443, , 447
ESP10, 275, 302, 357, 385, 403, 445, , 449
ESP10, 270, 297, 349, 381, 397, 448, , 452
ESP10, 263, 291, 343, 377, 394, 450, , 454
ESP10, 263, 292, 345, 377, 397, 452, , 456
ESP10, 258, 286, 342, 371, 393, 455, , 459
ESP10, 258, 288, 345, 371, 395, 457, , 461
ESP10, 262, 296, 351, 376, 401, 459, , 463
ESP10, 264, 301, 353, 379, 403, 462, , 466
ESP10, 271, 309, 358, 387, 408, 464, , 468
ESP10, 276, 312, 361, 388, 408, 466, , 470
ESP10, 269, 302, 351, 379, 399, 469, , 473
ESP10, 270, 301, 348, 376, 397, 471, , 475
ESP10, 268, 297, 349, 370, 395, 473, , 477
ESP10, 258, 281, 335, 355, 382, 476, , 480
ESP10, 259, 287, 334, 355, 382, 478, , 482
ESP10, 260, 290, 335, 356, 383, 480, , 484
ESP10, 267, 299, 339, 362, 386, 483, , 487
ESP10, 273, 304, 344, 370, 390, 485, , 489
ESP10, 277, 305, 344, 375, 391, 487, , 491
ESP10, 297, 321, 365, 392, 409, 490, , 494
ESP10, 302, 328, 369, 397, 413, 492, , 496
ESP10, 299, 328, 366, 397, 412, 494, , 498
ESP10, 295, 324, 361, 393, 405, 497, , 501
ESP10, 286, 312, 351, 382, 395, 499, , 503
ESP10, 279, 305, 342, 375, 391, 501, , 505
ESP10, 288, 314, 349, 384, 400, 504, , 508
ESP10, 286, 314, 346, 379, 397, 506, , 510
ESP10, 298, 323, 358, 389, 409, 508, , 512
ESP10, 288, 314, 351, 381, 400, 511, , 515
ESP10, 294, 319, 355, 385, 405, 513, , 517
ESP10, 301, 322, 357, 389, 408, 515, , 519
ESP10, 302, 324, 357, 392, 408, 518, , 522
ESP10, 307, 326, 358, 393, 408, 520, , 524
ESP10, 310, 333, 360, 394, 408, 522, , 526
ESP10, 315, 335, 362, 392, 409, 525, , 529
ESP10, 319, 340, 368, 393, 410, 527, , 531
ESP10, 324, 346, 372, 394, 413, 530, , 534
ESP10, 329, 352, 380, 398, 418, 532, , 536
ESP10, 334, 356, 384, 399, 419, 534, , 538
ESP10, 339, 362, 388, 406, 423, 537, , 541
ESP10, 339, 364, 389, 407, 423, 539, , 543
ESP10, 334, 359, 386, 404, 419, 541, , 545
ESP10, 338, 366, 390, 410, 424, 544, , 548
ESP10, 341, 372, 395, 413, 426, 546, , 550
ESP10, 344, 376, 399, 415, 427, 548, , 552
ESP10, 344, 375, 400, 417, 427, 551, , 555
ESP10, 349, 383, 405, 420, 432, 553, , 557
ESP10, 352, 381, 403, 419, 432, 555, , 559
ESP10, 353, 382, 402, 417, 430, 558, , 562
ESP10, 352, 383, 401, 415, 427, 560, , 564
ESP10, 359, 390, 407, 422, 433, 562, , 566
ESP10, 359, 391, 408, 423, 432, 565, , 569
ESP10, 360, 393, 410, 425, 433, 567, , 571
ESP10, 364, 394, 413, 426, 434, 569, , 573
ESP10, 367, 394, 415, 427, 436, 572, , 576
ESP10, 371, 396, 418, 429, 435, 574, , 578
ESP10, 371, 394, 417, 429, 434, 576, , 580
ESP10, 370, 396, 418, 430, 435, 579, , 583
ESP10, 376, 402, 426, 435, 439, 581, , 585
ESP10, 379, 403, 428, 436, 440, 583, , 587
ESP10, 378, 402, 428, 436, 441, 586, , 590
ESP10, 378, 403, 428, 436, 440, 588, , 592
ESP10, 375, 403, 426, 434, 439, 590, , 594
ESP10, 379, 408, 429, 438, 441, 593, , 597
ESP10, 379, 408, 428, 437, 440, 595, , 599
ESP10, 383, 410, 429, 438, 441, 597, , 601
ESP10, 379, 408, 427, 436, 439, 600, , 604
ESP10, 379, 407, 426, 435, 439, 602, , 606
ESP10, 384, 405, 425, 435, 439, 604, , 608
ESP10, 382, 398, 420, 430, 436, 607, , 611
ESP10, 389, 404, 425, 435, 438, 609, , 613
ESP10, 394, 414, 426, 435, 439, 611, , 615
ESP10, 395, 415, 427, 435, 439, 614, , 618
ESP10, 398, 415, 427, 436, 441, 616, , 620
ESP10, 399, 417, 427, 436, 441, 619, , 623
ESP10, 401, 420, 429, 437, 442, 621, , 625
ESP10, 406, 422, 430, 439, 443, 623, , 627
ESP10, 408, 422, 429, 437, 441, 626, , 630
ESP10, 418, 431, 438, 444, 447, 628, , 632
ESP10, 420, 431, 438, 444, 447, 630, , 634
ESP10, 414, 423, 431, 436, 439, 633, , 637
ESP10, 418, 429, 435, 440, 442, 635, , 639
ESP10, 420, 432, 436, 441, 444, 637, , 641
ESP10, 420, 432, 436, 441, 443, 640, , 644
ESP10, 421, 433, 437, 442, 444, 642, , 646
ESP10, 422, 434, 438, 442, 444, 644, , 648
ESP10, 422, 436, 440, 444, 445, 647, , 651
ESP10, 423, 437, 440, 444, 445, 649, , 653
ESP10, 427, 439, 442, 446, 447, 651, , 655
ESP10, 428, 440, 442, 446, 448, 654, , 658
ESP10, 433, 444, 446, 449, 449, 677, , 681
ESP10, 437, 444, 446, 449, 450, 679, , 683
ESP10, 438, 446, 447, 450, 451, 682, , 686
ESP10, 438, 445, 447, 449, 451, 684, , 688
ESP10, 440, 446, 448, 451, 452, 686, , 690
ESP10, 441, 447, 449, 451, 453, 689, , 693
ESP10, 441, 447, 449, 451, 453, 691, , 695
ESP10, 442, 448, 449, 452, 453, 693, , 697
ESP10, 442, 447, 449, 451, 453, 696, , 700
ESP10, 442, 448, 450, 452, 453, 698, , 702
ESP10, 441, 447, 449, 451, 452, 701, , 705
ESP10, 444, 448, 451, 452, 453, 703, , 707
ESP10, 444, 448, 451, 452, 453, 705, , 709
ESP10, 445, 449, 451, 453, 454, 708, , 712
ESP10, 445, 448, 451, 453, 454, 710, , 714
ESP10, 445, 447, 449, 451, 452, 712, , 716
ESP10, 445, 447, 449, 451, 452, 715, , 719
ESP10, 448, 449, 451, 452, 453, 717, , 721
ESP10, 448, 449, 451, 453, 453, 719, , 723
ESP10, 448, 449, 451, 453, 453, 722, , 726
ESP10, 448, 450, 452, 453, 454, 724, , 728
ESP10, 448, 450, 452, 453, 454, 726, , 730
ESP10, 448, 450, 452, 454, 454, 729, , 733
ESP10, 448, 450, 452, 453, 455, 731, , 735
ESP10, 449, 450, 452, 454, 455, 733, , 737
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/MYDW1N_SQIN.ESPF10.csv
MYDW1N_SQIN.ESPF0.csv|2025-07-12
MYDW1N_SQIN.ESPF10.csv|2025-07-12
MYDW1N_SQIN.ESPFM.csv|2025-07-12
APR-SEP
COWLITZ - MAYFIELD RESERVOIR
(
MYDW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1295
1837
96
2411
1913
APR-JUL
1131
1641
98
2029
1682
JAN-SEP
2544
3343
98
4135
3419
JAN-JUL
2402
3136
98
3842
3188
OCT-SEP
3441
4457
97
5558
4585
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/MYDW1N_SQIN.ESPF10.csv
MYDW1N_SQIN.ESPF0.csv|2025-07-12
MYDW1N_SQIN.ESPF10.csv|2025-07-12
MYDW1N_SQIN.ESPFM.csv|2025-07-12
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
