Choose Date:
Archive:
Water Year
Loading...
COWLITZ - MAYFIELD RESERVOIR
(
MYDW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-04-29
Issued:
2026-04-29
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1066
1219
64
1508
1913
APR-JUL
926
1057
63
1210
1682
JAN-SEP
2680
2833
83
3122
3419
JAN-JUL
2539
2671
84
2824
3188
OCT-SEP
4624
4777
104
5067
4585
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-04-29
Issued:
2026-04-29
Hide Forecast
APR-SEP
1071
1246
65
1531
1913
APR-JUL
929
1087
65
1270
1682
JAN-SEP
2685
2860
84
3144
3419
JAN-JUL
2542
2700
85
2884
3188
OCT-SEP
4629
4804
105
5089
4585
Reference
ESP with 0 Days QPF
Ensemble:
2026-04-29
Issued:
2026-04-29
Hide Forecast
APR-SEP
1088
1309
68
1602
1913
APR-JUL
950
1140
68
1376
1682
JAN-SEP
2701
2922
85
3215
3419
JAN-JUL
2564
2753
86
2989
3188
OCT-SEP
4646
4867
106
5160
4585
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 244, 293, 340, 400, 432, 71, , 75
ESP10, 244, 293, 340, 399, 432, 74, , 78
ESP10, 244, 293, 340, 399, 432, 77, , 81
ESP10, 244, 293, 340, 399, 432, 81, , 85
ESP10, 244, 293, 340, 400, 432, 84, , 88
ESP10, 244, 293, 340, 400, 432, 87, , 91
ESP10, 244, 292, 340, 400, 431, 90, , 94
ESP10, 244, 293, 340, 400, 432, 93, , 97
ESP10, 244, 293, 340, 400, 431, 96, , 100
ESP10, 244, 293, 340, 400, 431, 100, , 104
ESP10, 244, 293, 340, 400, 431, 103, , 107
ESP10, 244, 293, 340, 400, 432, 106, , 110
ESP10, 244, 292, 340, 400, 432, 109, , 113
ESP10, 244, 292, 340, 400, 433, 112, , 116
ESP10, 244, 292, 340, 400, 433, 115, , 119
ESP10, 243, 292, 340, 399, 432, 119, , 123
ESP10, 241, 291, 338, 396, 430, 122, , 126
ESP10, 240, 291, 338, 395, 430, 125, , 129
ESP10, 240, 291, 338, 396, 431, 128, , 132
ESP10, 241, 291, 342, 398, 432, 131, , 135
ESP10, 238, 290, 337, 394, 429, 134, , 138
ESP10, 242, 292, 347, 399, 433, 138, , 142
ESP10, 241, 291, 347, 398, 432, 141, , 145
ESP10, 242, 293, 349, 399, 433, 144, , 148
ESP10, 243, 293, 349, 400, 433, 147, , 151
ESP10, 243, 293, 349, 399, 433, 150, , 154
ESP10, 243, 294, 349, 399, 433, 153, , 157
ESP10, 243, 296, 351, 399, 433, 156, , 160
ESP10, 244, 296, 351, 399, 433, 160, , 164
ESP10, 242, 294, 351, 398, 432, 163, , 167
ESP10, 239, 291, 348, 396, 430, 166, , 170
ESP10, 242, 294, 350, 398, 432, 169, , 173
ESP10, 243, 293, 350, 397, 431, 172, , 176
ESP10, 246, 296, 351, 399, 432, 175, , 179
ESP10, 246, 295, 351, 399, 431, 179, , 183
ESP10, 247, 297, 352, 399, 433, 182, , 186
ESP10, 247, 299, 352, 399, 434, 185, , 189
ESP10, 245, 295, 349, 397, 429, 188, , 192
ESP10, 243, 295, 347, 397, 429, 191, , 195
ESP10, 245, 294, 346, 396, 430, 194, , 198
ESP10, 249, 298, 349, 398, 433, 198, , 202
ESP10, 253, 299, 350, 398, 433, 201, , 205
ESP10, 251, 296, 347, 396, 430, 204, , 208
ESP10, 259, 304, 353, 404, 437, 207, , 211
ESP10, 261, 303, 354, 404, 436, 210, , 214
ESP10, 262, 303, 353, 402, 435, 213, , 217
ESP10, 264, 304, 353, 404, 436, 217, , 221
ESP10, 266, 306, 355, 406, 437, 220, , 224
ESP10, 265, 308, 354, 405, 435, 223, , 227
ESP10, 267, 309, 355, 405, 435, 226, , 230
ESP10, 269, 311, 355, 405, 435, 229, , 233
ESP10, 271, 315, 356, 408, 435, 232, , 236
ESP10, 270, 317, 358, 407, 433, 236, , 240
ESP10, 274, 321, 361, 411, 436, 239, , 243
ESP10, 273, 320, 361, 409, 434, 242, , 246
ESP10, 276, 324, 364, 410, 437, 245, , 249
ESP10, 276, 323, 364, 410, 436, 248, , 252
ESP10, 278, 323, 363, 410, 434, 251, , 255
ESP10, 279, 324, 364, 411, 433, 254, , 258
ESP10, 273, 320, 360, 405, 426, 258, , 262
ESP10, 282, 327, 365, 410, 434, 261, , 265
ESP10, 286, 332, 368, 414, 439, 264, , 268
ESP10, 285, 330, 368, 412, 440, 267, , 271
ESP10, 277, 325, 366, 405, 434, 270, , 274
ESP10, 285, 335, 372, 412, 442, 273, , 277
ESP10, 282, 333, 370, 410, 440, 277, , 281
ESP10, 289, 337, 373, 416, 446, 280, , 284
ESP10, 293, 338, 375, 417, 452, 283, , 287
ESP10, 294, 338, 377, 417, 454, 286, , 290
ESP10, 291, 333, 371, 412, 448, 289, , 293
ESP10, 279, 322, 360, 399, 436, 292, , 296
ESP10, 276, 320, 358, 396, 436, 296, , 300
ESP10, 274, 319, 357, 395, 437, 299, , 303
ESP10, 280, 324, 361, 400, 444, 302, , 306
ESP10, 280, 324, 361, 401, 445, 305, , 309
ESP10, 281, 325, 361, 402, 445, 308, , 312
ESP10, 276, 319, 355, 398, 441, 311, , 315
ESP10, 275, 321, 355, 398, 441, 315, , 319
ESP10, 274, 321, 355, 398, 441, 318, , 322
ESP10, 272, 321, 355, 396, 440, 321, , 325
ESP10, 281, 332, 364, 406, 449, 324, , 328
ESP10, 280, 332, 364, 404, 447, 327, , 331
ESP10, 287, 339, 373, 412, 453, 330, , 334
ESP10, 287, 338, 375, 412, 454, 333, , 337
ESP10, 285, 334, 376, 409, 451, 337, , 341
ESP10, 279, 328, 373, 406, 448, 340, , 344
ESP10, 281, 330, 378, 408, 451, 343, , 347
ESP10, 284, 333, 382, 410, 453, 346, , 350
ESP10, 286, 333, 383, 413, 453, 349, , 353
ESP10, 290, 336, 385, 414, 453, 352, , 356
ESP10, 294, 338, 389, 418, 455, 356, , 360
ESP10, 290, 335, 384, 414, 451, 359, , 363
ESP10, 287, 331, 381, 410, 448, 362, , 366
ESP10, 286, 328, 378, 408, 445, 365, , 369
ESP10, 285, 331, 376, 409, 444, 368, , 372
ESP10, 282, 329, 373, 407, 444, 371, , 375
ESP10, 281, 328, 371, 407, 445, 375, , 379
ESP10, 282, 328, 372, 410, 447, 378, , 382
ESP10, 283, 331, 374, 413, 449, 381, , 385
ESP10, 284, 331, 377, 416, 450, 384, , 388
ESP10, 285, 332, 378, 417, 452, 387, , 391
ESP10, 284, 331, 377, 416, 452, 390, , 394
ESP10, 284, 334, 380, 417, 453, 394, , 398
ESP10, 283, 335, 385, 415, 456, 397, , 401
ESP10, 286, 342, 387, 417, 460, 400, , 404
ESP10, 284, 340, 387, 416, 459, 403, , 407
ESP10, 281, 337, 384, 414, 456, 406, , 410
ESP10, 285, 340, 387, 420, 459, 409, , 413
ESP10, 287, 341, 388, 421, 462, 412, , 416
ESP10, 298, 348, 392, 428, 466, 416, , 420
ESP10, 299, 347, 391, 424, 463, 419, , 423
ESP10, 303, 349, 395, 425, 465, 422, , 426
ESP10, 304, 351, 399, 431, 465, 425, , 429
ESP10, 305, 353, 403, 435, 467, 428, , 432
ESP10, 304, 351, 402, 433, 465, 431, , 435
ESP10, 305, 354, 403, 434, 465, 435, , 439
ESP10, 307, 358, 408, 436, 466, 438, , 442
ESP10, 306, 358, 408, 435, 465, 441, , 445
ESP10, 308, 359, 411, 436, 466, 444, , 448
ESP10, 309, 359, 414, 437, 466, 447, , 451
ESP10, 313, 365, 418, 442, 470, 450, , 454
ESP10, 316, 369, 422, 444, 472, 454, , 458
ESP10, 316, 367, 420, 441, 470, 457, , 461
ESP10, 315, 365, 418, 439, 469, 460, , 464
ESP10, 317, 367, 421, 441, 472, 463, , 467
ESP10, 314, 364, 420, 439, 469, 466, , 470
ESP10, 311, 363, 421, 438, 469, 469, , 473
ESP10, 315, 367, 425, 443, 474, 473, , 477
ESP10, 311, 363, 421, 442, 471, 476, , 480
ESP10, 310, 362, 420, 443, 470, 479, , 483
ESP10, 308, 361, 419, 442, 470, 482, , 486
ESP10, 311, 364, 421, 443, 474, 485, , 489
ESP10, 302, 356, 414, 434, 468, 488, , 492
ESP10, 303, 357, 417, 436, 470, 491, , 495
ESP10, 302, 354, 414, 435, 468, 495, , 499
ESP10, 297, 348, 406, 431, 463, 498, , 502
ESP10, 302, 351, 410, 435, 466, 501, , 505
ESP10, 308, 355, 419, 439, 471, 504, , 508
ESP10, 295, 342, 407, 426, 458, 507, , 511
ESP10, 301, 347, 411, 431, 462, 510, , 514
ESP10, 302, 345, 408, 430, 462, 514, , 518
ESP10, 308, 349, 412, 437, 469, 517, , 521
ESP10, 309, 352, 412, 441, 469, 520, , 524
ESP10, 315, 361, 419, 449, 474, 523, , 527
ESP10, 320, 367, 423, 454, 478, 526, , 530
ESP10, 324, 370, 424, 454, 478, 529, , 533
ESP10, 326, 368, 424, 452, 476, 533, , 537
ESP10, 324, 365, 422, 450, 475, 536, , 540
ESP10, 325, 363, 420, 448, 473, 539, , 543
ESP10, 329, 361, 421, 447, 475, 542, , 546
ESP10, 332, 362, 423, 449, 477, 545, , 549
ESP10, 328, 360, 420, 446, 474, 548, , 552
ESP10, 327, 357, 420, 444, 471, 552, , 556
ESP10, 317, 345, 412, 432, 459, 555, , 559
ESP10, 312, 341, 407, 428, 454, 558, , 562
ESP10, 311, 337, 402, 424, 452, 561, , 565
ESP10, 310, 338, 399, 424, 450, 564, , 568
ESP10, 306, 335, 394, 421, 447, 567, , 571
ESP10, 303, 333, 390, 422, 444, 571, , 575
ESP10, 308, 336, 396, 425, 447, 574, , 578
ESP10, 306, 333, 393, 421, 445, 577, , 581
ESP10, 300, 330, 386, 415, 438, 580, , 584
ESP10, 309, 340, 396, 427, 450, 583, , 587
ESP10, 307, 340, 397, 426, 452, 586, , 590
ESP10, 306, 341, 400, 427, 454, 589, , 593
ESP10, 300, 336, 395, 422, 450, 593, , 597
ESP10, 297, 334, 393, 420, 446, 596, , 600
ESP10, 302, 341, 397, 423, 449, 599, , 603
ESP10, 306, 348, 399, 426, 452, 602, , 606
ESP10, 315, 354, 400, 429, 452, 605, , 609
ESP10, 319, 355, 403, 429, 452, 608, , 612
ESP10, 325, 358, 404, 431, 455, 612, , 616
ESP10, 328, 358, 407, 430, 457, 615, , 619
ESP10, 326, 349, 401, 422, 449, 618, , 622
ESP10, 325, 351, 398, 420, 449, 621, , 625
ESP10, 332, 359, 404, 426, 455, 624, , 628
ESP10, 327, 357, 399, 421, 447, 627, , 631
ESP10, 335, 364, 406, 431, 453, 631, , 635
ESP10, 336, 362, 405, 434, 452, 634, , 638
ESP10, 340, 362, 406, 434, 454, 637, , 641
ESP10, 346, 369, 413, 439, 459, 640, , 644
ESP10, 349, 377, 416, 447, 462, 643, , 647
ESP10, 350, 379, 414, 447, 462, 646, , 650
ESP10, 359, 385, 422, 454, 468, 650, , 654
ESP10, 361, 384, 425, 456, 470, 653, , 657
ESP10, 362, 389, 426, 459, 473, 656, , 660
ESP10, 367, 395, 431, 463, 479, 659, , 663
ESP10, 371, 397, 434, 465, 483, 662, , 666
ESP10, 364, 390, 426, 458, 477, 665, , 669
ESP10, 358, 385, 419, 453, 472, 668, , 672
ESP10, 361, 384, 417, 451, 469, 672, , 676
ESP10, 357, 381, 412, 448, 465, 675, , 679
ESP10, 359, 380, 410, 446, 462, 678, , 682
ESP10, 364, 387, 413, 450, 465, 681, , 685
ESP10, 369, 390, 417, 449, 463, 684, , 688
ESP10, 376, 398, 425, 454, 468, 687, , 691
ESP10, 380, 407, 428, 457, 470, 691, , 695
ESP10, 380, 408, 433, 458, 472, 694, , 698
ESP10, 382, 411, 432, 457, 470, 697, , 701
ESP10, 382, 413, 432, 459, 469, 700, , 704
ESP10, 386, 415, 433, 460, 470, 703, , 707
ESP10, 386, 413, 431, 458, 468, 706, , 710
ESP10, 387, 415, 433, 459, 469, 710, , 714
ESP10, 388, 418, 436, 462, 471, 713, , 717
ESP10, 390, 423, 440, 462, 472, 716, , 720
ESP10, 390, 423, 440, 462, 471, 719, , 723
ESP10, 387, 423, 438, 459, 469, 722, , 726
ESP10, 390, 426, 440, 460, 470, 725, , 729
ESP10, 394, 429, 443, 461, 470, 729, , 733
ESP10, 396, 430, 445, 460, 470, 732, , 736
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
Overlay
ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/MYDW1N_SQIN.ESPF10.csv
MYDW1N_SQIN.ESPF0.csv|2026-04-29
MYDW1N_SQIN.ESPF10.csv|2026-04-29
MYDW1N_SQIN.ESPFM.csv|2026-04-29
APR-SEP
Commerce Home
|
NOAA
|
NWS Organization
|
NWRFC Site Map
|
Search
Freedom of Information Act
|
Privacy Policy
|
Information Quality
|
USA.gov
|
Career Opportunities
#FFF68F
#33CCFF
#404040
#660066
#F00007
#66CCFF
ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
