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Archive:
Water Year
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COLUMBIA - MCNARY DAM
(
MCDW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-06-28
Issued:
2026-06-28
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
77090
78322
84
80690
92790
APR-JUL
66346
66938
83
67633
80726
JAN-SEP
100331
101563
91
103931
112028
JAN-JUL
89587
90179
90
90874
99964
OCT-SEP
118472
119704
94
122072
126785
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-06-28
Issued:
2026-06-28
Hide Forecast
APR-SEP
76560
78422
85
80652
92790
APR-JUL
65748
66834
83
68245
80726
JAN-SEP
99801
101662
91
103893
112028
JAN-JUL
88988
90075
90
91485
99964
OCT-SEP
117942
119803
94
122034
126785
Reference
ESP with 0 Days QPF
Ensemble:
2026-06-28
Issued:
2026-06-28
Hide Forecast
APR-SEP
76150
77452
83
80093
92790
APR-JUL
65207
66046
82
67576
80726
JAN-SEP
99391
100693
90
103333
112028
JAN-JUL
88447
89287
89
90816
99964
OCT-SEP
117532
118834
94
121475
126785
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 257, 322, 360, 416, 450, 70, , 74
ESP10, 252, 317, 355, 412, 448, 73, , 77
ESP10, 249, 319, 352, 413, 447, 75, , 79
ESP10, 248, 315, 353, 413, 446, 78, , 82
ESP10, 247, 316, 353, 412, 445, 80, , 84
ESP10, 243, 310, 350, 412, 442, 83, , 87
ESP10, 245, 313, 353, 416, 444, 85, , 89
ESP10, 247, 316, 356, 419, 446, 88, , 92
ESP10, 244, 318, 358, 422, 446, 90, , 94
ESP10, 240, 315, 352, 417, 443, 93, , 97
ESP10, 238, 318, 355, 411, 442, 95, , 99
ESP10, 239, 321, 359, 413, 444, 98, , 102
ESP10, 234, 319, 353, 413, 443, 100, , 104
ESP10, 235, 319, 355, 414, 446, 102, , 106
ESP10, 232, 317, 349, 411, 443, 105, , 109
ESP10, 217, 304, 336, 403, 431, 107, , 111
ESP10, 208, 296, 327, 395, 423, 110, , 114
ESP10, 218, 306, 338, 404, 431, 112, , 116
ESP10, 222, 308, 341, 406, 433, 115, , 119
ESP10, 223, 310, 346, 408, 434, 117, , 121
ESP10, 212, 302, 337, 396, 425, 120, , 124
ESP10, 212, 307, 341, 402, 426, 122, , 126
ESP10, 205, 308, 336, 399, 424, 125, , 129
ESP10, 214, 323, 344, 407, 434, 127, , 131
ESP10, 217, 327, 351, 419, 437, 130, , 134
ESP10, 217, 328, 354, 425, 439, 132, , 136
ESP10, 218, 329, 354, 426, 437, 135, , 139
ESP10, 230, 333, 359, 428, 438, 137, , 141
ESP10, 225, 326, 353, 421, 434, 139, , 143
ESP10, 207, 312, 341, 408, 424, 142, , 146
ESP10, 206, 311, 340, 407, 423, 144, , 148
ESP10, 213, 314, 345, 411, 428, 147, , 151
ESP10, 223, 317, 345, 408, 431, 149, , 153
ESP10, 231, 325, 355, 414, 440, 152, , 156
ESP10, 237, 326, 358, 416, 441, 154, , 158
ESP10, 237, 327, 359, 416, 441, 157, , 161
ESP10, 238, 327, 360, 414, 442, 159, , 163
ESP10, 233, 319, 351, 407, 434, 162, , 166
ESP10, 240, 325, 357, 412, 440, 164, , 168
ESP10, 243, 324, 359, 410, 444, 167, , 171
ESP10, 248, 330, 362, 410, 449, 169, , 173
ESP10, 252, 338, 365, 412, 451, 171, , 175
ESP10, 263, 344, 373, 416, 457, 174, , 178
ESP10, 272, 345, 378, 425, 464, 176, , 180
ESP10, 269, 337, 373, 422, 460, 179, , 183
ESP10, 276, 342, 378, 425, 465, 181, , 185
ESP10, 271, 334, 373, 422, 464, 184, , 188
ESP10, 283, 341, 379, 427, 470, 186, , 190
ESP10, 287, 339, 375, 423, 471, 189, , 193
ESP10, 289, 342, 376, 425, 473, 191, , 195
ESP10, 287, 343, 375, 423, 471, 194, , 198
ESP10, 282, 344, 372, 418, 470, 196, , 200
ESP10, 281, 346, 372, 416, 467, 199, , 203
ESP10, 291, 355, 383, 427, 474, 201, , 205
ESP10, 288, 352, 381, 428, 470, 203, , 207
ESP10, 288, 351, 382, 429, 469, 206, , 210
ESP10, 281, 344, 378, 426, 465, 208, , 212
ESP10, 279, 342, 379, 429, 464, 211, , 215
ESP10, 282, 343, 382, 431, 465, 213, , 217
ESP10, 270, 328, 373, 418, 453, 216, , 220
ESP10, 257, 313, 363, 407, 441, 218, , 222
ESP10, 263, 321, 370, 412, 447, 221, , 225
ESP10, 251, 317, 361, 401, 438, 223, , 227
ESP10, 232, 296, 339, 382, 423, 226, , 230
ESP10, 234, 300, 341, 388, 428, 228, , 232
ESP10, 225, 296, 336, 384, 421, 231, , 235
ESP10, 232, 301, 345, 396, 430, 233, , 237
ESP10, 227, 295, 339, 390, 424, 236, , 240
ESP10, 212, 274, 320, 372, 413, 238, , 242
ESP10, 205, 267, 315, 365, 406, 240, , 244
ESP10, 203, 264, 313, 365, 404, 243, , 247
ESP10, 208, 262, 315, 370, 410, 245, , 249
ESP10, 207, 263, 316, 369, 409, 248, , 252
ESP10, 204, 258, 311, 364, 408, 250, , 254
ESP10, 207, 257, 314, 363, 409, 253, , 257
ESP10, 209, 255, 313, 362, 408, 255, , 259
ESP10, 206, 257, 315, 357, 408, 258, , 262
ESP10, 214, 260, 318, 357, 409, 260, , 264
ESP10, 216, 269, 320, 356, 411, 263, , 267
ESP10, 220, 272, 314, 353, 406, 265, , 269
ESP10, 231, 275, 319, 359, 409, 268, , 272
ESP10, 240, 278, 323, 362, 408, 270, , 274
ESP10, 253, 280, 332, 372, 415, 272, , 276
ESP10, 256, 280, 335, 377, 417, 275, , 279
ESP10, 249, 270, 326, 374, 411, 277, , 281
ESP10, 244, 266, 322, 373, 412, 280, , 284
ESP10, 245, 274, 324, 377, 415, 282, , 286
ESP10, 246, 281, 333, 383, 422, 285, , 289
ESP10, 245, 282, 332, 378, 418, 287, , 291
ESP10, 251, 285, 329, 378, 417, 290, , 294
ESP10, 259, 287, 337, 374, 418, 292, , 296
ESP10, 257, 290, 334, 373, 417, 295, , 299
ESP10, 253, 286, 328, 369, 412, 297, , 301
ESP10, 251, 296, 330, 375, 413, 300, , 304
ESP10, 243, 290, 326, 371, 406, 302, , 306
ESP10, 241, 291, 326, 373, 405, 304, , 308
ESP10, 238, 290, 325, 374, 406, 307, , 311
ESP10, 237, 292, 326, 374, 405, 309, , 313
ESP10, 242, 289, 327, 373, 404, 312, , 316
ESP10, 247, 289, 330, 371, 403, 314, , 318
ESP10, 246, 290, 331, 371, 405, 317, , 321
ESP10, 246, 291, 330, 371, 406, 319, , 323
ESP10, 244, 292, 328, 368, 405, 322, , 326
ESP10, 248, 295, 325, 366, 406, 324, , 328
ESP10, 254, 294, 331, 367, 414, 327, , 331
ESP10, 251, 297, 333, 366, 412, 329, , 333
ESP10, 248, 293, 334, 364, 409, 332, , 336
ESP10, 253, 298, 337, 366, 410, 334, , 338
ESP10, 255, 303, 337, 367, 409, 336, , 340
ESP10, 260, 316, 343, 374, 414, 339, , 343
ESP10, 264, 318, 345, 375, 414, 341, , 345
ESP10, 273, 319, 349, 379, 420, 344, , 348
ESP10, 279, 322, 350, 382, 420, 346, , 350
ESP10, 285, 327, 356, 387, 425, 349, , 353
ESP10, 286, 328, 358, 386, 426, 351, , 355
ESP10, 281, 330, 354, 384, 421, 354, , 358
ESP10, 286, 331, 356, 385, 423, 356, , 360
ESP10, 290, 332, 359, 385, 428, 359, , 363
ESP10, 292, 341, 360, 387, 429, 361, , 365
ESP10, 292, 345, 362, 387, 429, 364, , 368
ESP10, 294, 341, 359, 386, 425, 366, , 370
ESP10, 292, 339, 355, 382, 421, 369, , 373
ESP10, 284, 334, 350, 377, 416, 371, , 375
ESP10, 289, 334, 350, 378, 419, 373, , 377
ESP10, 297, 336, 351, 378, 421, 376, , 380
ESP10, 298, 338, 353, 380, 420, 378, , 382
ESP10, 294, 334, 349, 376, 416, 381, , 385
ESP10, 301, 340, 355, 382, 420, 383, , 387
ESP10, 301, 337, 352, 382, 418, 386, , 390
ESP10, 301, 337, 353, 382, 417, 388, , 392
ESP10, 303, 338, 355, 381, 414, 391, , 395
ESP10, 306, 340, 354, 382, 414, 393, , 397
ESP10, 304, 336, 349, 377, 409, 396, , 400
ESP10, 311, 341, 353, 381, 410, 398, , 402
ESP10, 308, 343, 353, 382, 407, 401, , 405
ESP10, 300, 332, 343, 374, 398, 403, , 407
ESP10, 298, 331, 342, 373, 398, 405, , 409
ESP10, 303, 337, 348, 378, 403, 408, , 412
ESP10, 291, 323, 337, 365, 393, 410, , 414
ESP10, 303, 335, 349, 377, 406, 413, , 417
ESP10, 296, 328, 343, 368, 401, 415, , 419
ESP10, 303, 333, 352, 374, 407, 418, , 422
ESP10, 304, 333, 351, 377, 406, 420, , 424
ESP10, 310, 337, 355, 382, 410, 423, , 427
ESP10, 314, 336, 356, 384, 410, 425, , 429
ESP10, 318, 342, 357, 388, 412, 428, , 432
ESP10, 321, 342, 360, 388, 411, 430, , 434
ESP10, 315, 337, 356, 381, 403, 433, , 437
ESP10, 310, 330, 352, 375, 399, 435, , 439
ESP10, 301, 324, 345, 366, 390, 437, , 441
ESP10, 304, 331, 352, 368, 392, 440, , 444
ESP10, 300, 328, 350, 366, 389, 442, , 446
ESP10, 292, 319, 346, 360, 380, 445, , 449
ESP10, 283, 314, 341, 355, 373, 447, , 451
ESP10, 281, 312, 340, 354, 367, 450, , 454
ESP10, 278, 310, 337, 353, 368, 452, , 456
ESP10, 271, 302, 329, 344, 359, 455, , 459
ESP10, 273, 304, 329, 344, 360, 457, , 461
ESP10, 266, 295, 317, 333, 349, 460, , 464
ESP10, 280, 308, 330, 344, 363, 462, , 466
ESP10, 279, 307, 326, 342, 360, 465, , 469
ESP10, 271, 302, 319, 337, 354, 467, , 471
ESP10, 276, 305, 320, 340, 355, 470, , 474
ESP10, 281, 310, 325, 346, 362, 472, , 476
ESP10, 279, 308, 326, 345, 359, 474, , 478
ESP10, 276, 306, 322, 342, 356, 477, , 481
ESP10, 271, 301, 318, 337, 351, 479, , 483
ESP10, 273, 303, 321, 344, 354, 482, , 486
ESP10, 276, 304, 321, 343, 357, 484, , 488
ESP10, 280, 306, 327, 345, 359, 487, , 491
ESP10, 283, 305, 326, 343, 358, 489, , 493
ESP10, 291, 308, 328, 345, 363, 492, , 496
ESP10, 296, 308, 328, 343, 363, 494, , 498
ESP10, 283, 298, 319, 333, 353, 497, , 501
ESP10, 278, 294, 315, 327, 347, 499, , 503
ESP10, 282, 300, 318, 334, 351, 502, , 506
ESP10, 278, 296, 315, 334, 349, 504, , 508
ESP10, 279, 298, 321, 339, 349, 506, , 510
ESP10, 281, 304, 327, 343, 356, 509, , 513
ESP10, 283, 306, 327, 346, 360, 511, , 515
ESP10, 290, 313, 337, 353, 365, 514, , 518
ESP10, 294, 313, 339, 354, 367, 516, , 520
ESP10, 291, 312, 337, 349, 365, 519, , 523
ESP10, 296, 321, 342, 355, 370, 521, , 525
ESP10, 295, 321, 342, 357, 369, 524, , 528
ESP10, 292, 318, 342, 358, 368, 526, , 530
ESP10, 295, 318, 342, 359, 367, 529, , 533
ESP10, 297, 325, 347, 363, 370, 531, , 535
ESP10, 296, 320, 344, 359, 365, 534, , 538
ESP10, 291, 314, 338, 352, 359, 536, , 540
ESP10, 288, 314, 334, 348, 355, 538, , 542
ESP10, 289, 314, 335, 348, 355, 541, , 545
ESP10, 288, 314, 335, 349, 356, 543, , 547
ESP10, 292, 317, 338, 352, 359, 546, , 550
ESP10, 290, 317, 335, 348, 354, 548, , 552
ESP10, 303, 326, 343, 356, 362, 551, , 555
ESP10, 299, 321, 341, 354, 360, 553, , 557
ESP10, 307, 328, 344, 357, 364, 556, , 560
ESP10, 310, 325, 344, 354, 362, 558, , 562
ESP10, 310, 325, 344, 354, 362, 561, , 565
ESP10, 313, 328, 344, 358, 364, 563, , 567
ESP10, 315, 329, 348, 360, 366, 566, , 570
ESP10, 316, 334, 351, 361, 368, 568, , 572
ESP10, 324, 344, 360, 370, 380, 571, , 575
ESP10, 323, 343, 358, 369, 379, 573, , 577
ESP10, 324, 345, 359, 370, 380, 575, , 579
ESP10, 323, 345, 358, 367, 379, 578, , 582
ESP10, 321, 346, 357, 366, 379, 580, , 584
ESP10, 323, 348, 359, 368, 380, 583, , 587
ESP10, 324, 347, 359, 367, 380, 585, , 589
ESP10, 325, 348, 360, 370, 380, 588, , 592
ESP10, 332, 352, 365, 374, 384, 590, , 594
ESP10, 334, 357, 367, 376, 389, 593, , 597
ESP10, 335, 357, 369, 378, 389, 595, , 599
ESP10, 335, 357, 369, 379, 387, 598, , 602
ESP10, 335, 356, 369, 378, 386, 600, , 604
ESP10, 336, 357, 369, 379, 385, 603, , 607
ESP10, 336, 355, 369, 380, 384, 605, , 609
ESP10, 336, 354, 368, 380, 386, 607, , 611
ESP10, 337, 357, 366, 380, 386, 610, , 614
ESP10, 340, 360, 367, 381, 386, 612, , 616
ESP10, 340, 358, 366, 380, 384, 615, , 619
ESP10, 342, 358, 366, 379, 383, 617, , 621
ESP10, 344, 358, 369, 380, 386, 620, , 624
ESP10, 342, 355, 368, 378, 384, 622, , 626
ESP10, 345, 355, 369, 379, 386, 625, , 629
ESP10, 346, 353, 368, 378, 385, 627, , 631
ESP10, 348, 355, 372, 379, 385, 630, , 634
ESP10, 351, 358, 374, 381, 386, 632, , 636
ESP10, 354, 364, 377, 385, 390, 635, , 639
ESP10, 350, 360, 373, 381, 386, 637, , 641
ESP10, 349, 359, 371, 379, 384, 639, , 643
ESP10, 351, 364, 371, 378, 384, 642, , 646
ESP10, 349, 362, 371, 375, 381, 644, , 648
ESP10, 349, 362, 371, 376, 381, 647, , 651
ESP10, 347, 359, 369, 373, 380, 649, , 653
ESP10, 348, 357, 367, 372, 379, 652, , 656
ESP10, 348, 360, 368, 373, 379, 654, , 658
ESP10, 352, 362, 369, 375, 381, 657, , 661
ESP10, 348, 357, 365, 371, 377, 659, , 663
ESP10, 352, 359, 368, 373, 379, 662, , 666
ESP10, 352, 358, 367, 374, 379, 664, , 668
ESP10, 353, 360, 369, 374, 380, 667, , 671
ESP10, 356, 362, 370, 377, 382, 669, , 673
ESP10, 357, 362, 369, 377, 382, 671, , 675
ESP10, 356, 362, 370, 377, 381, 674, , 678
ESP10, 360, 367, 372, 381, 385, 676, , 680
ESP10, 363, 370, 374, 382, 386, 679, , 683
ESP10, 365, 371, 376, 384, 388, 681, , 685
ESP10, 363, 370, 375, 382, 386, 684, , 688
ESP10, 369, 377, 382, 388, 392, 686, , 690
ESP10, 368, 377, 383, 389, 391, 689, , 693
ESP10, 373, 381, 387, 392, 395, 691, , 695
ESP10, 374, 379, 386, 391, 393, 694, , 698
ESP10, 374, 379, 386, 391, 393, 696, , 700
ESP10, 376, 381, 387, 392, 395, 699, , 703
ESP10, 377, 382, 387, 393, 395, 701, , 705
ESP10, 376, 382, 387, 391, 395, 704, , 708
ESP10, 375, 382, 387, 391, 394, 706, , 710
ESP10, 377, 383, 389, 393, 396, 708, , 712
ESP10, 378, 385, 390, 395, 396, 711, , 715
ESP10, 376, 384, 389, 394, 396, 713, , 717
ESP10, 377, 386, 390, 394, 397, 716, , 720
ESP10, 374, 383, 387, 392, 396, 718, , 722
ESP10, 382, 388, 393, 397, 401, 721, , 725
ESP10, 382, 388, 392, 397, 400, 723, , 727
ESP10, 383, 388, 393, 397, 401, 726, , 730
ESP10, 379, 385, 390, 393, 397, 728, , 732
ESP10, 379, 385, 390, 392, 396, 731, , 735
ESP10, 376, 383, 388, 389, 394, 733, , 737
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Data Files
/chpsesp/ensemble/watersupply/MCDW1W_SQIN.ESPF10.csv
MCDW1W_SQIN.ESPF0.csv|2026-06-28
MCDW1W_SQIN.ESPF10.csv|2026-06-28
MCDW1W_SQIN.ESPFM.csv|2026-06-28
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ESP10,ESPM,ESP0
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