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Water Year
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COLUMBIA - MCNARY DAM
(
MCDW1
)
Forecasts for Water Year
2025
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-16
Issued:
2025-07-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
69298
69897
75
71595
92790
APR-JUL
59988
60108
74
60183
80726
JAN-SEP
86037
86636
77
88335
112028
JAN-JUL
76727
76847
77
76923
99964
OCT-SEP
98693
99292
78
100990
126785
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2025-07-16
Issued:
2025-07-16
Hide Forecast
APR-SEP
69069
69818
75
71562
92790
APR-JUL
59755
59962
74
60397
80726
JAN-SEP
85809
86558
77
88301
112028
JAN-JUL
76495
76702
77
77136
99964
OCT-SEP
98464
99213
78
100957
126785
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-16
Issued:
2025-07-16
Hide Forecast
APR-SEP
69037
69616
75
70999
92790
APR-JUL
59691
59928
74
60294
80726
JAN-SEP
85776
86355
77
87738
112028
JAN-JUL
76431
76667
77
77033
99964
OCT-SEP
98432
99011
78
100394
126785
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 245, 313, 347, 407, 445, 70, , 74
ESP10, 247, 314, 353, 410, 448, 73, , 77
ESP10, 248, 319, 354, 410, 449, 75, , 79
ESP10, 247, 319, 353, 409, 449, 77, , 81
ESP10, 246, 319, 352, 408, 448, 80, , 84
ESP10, 246, 318, 352, 408, 448, 82, , 86
ESP10, 247, 317, 352, 411, 449, 84, , 88
ESP10, 246, 317, 358, 410, 449, 86, , 90
ESP10, 239, 314, 354, 405, 443, 89, , 93
ESP10, 237, 316, 353, 405, 442, 91, , 95
ESP10, 235, 315, 353, 402, 440, 93, , 97
ESP10, 234, 314, 352, 402, 440, 96, , 100
ESP10, 237, 316, 355, 403, 445, 98, , 102
ESP10, 239, 320, 360, 415, 450, 100, , 104
ESP10, 237, 319, 356, 413, 447, 103, , 107
ESP10, 232, 321, 350, 409, 443, 105, , 109
ESP10, 231, 321, 348, 407, 440, 107, , 111
ESP10, 226, 316, 343, 403, 434, 110, , 114
ESP10, 225, 315, 342, 403, 433, 112, , 116
ESP10, 221, 306, 342, 400, 428, 114, , 118
ESP10, 220, 309, 342, 401, 429, 117, , 121
ESP10, 224, 316, 347, 413, 435, 119, , 123
ESP10, 219, 321, 343, 408, 433, 121, , 125
ESP10, 222, 323, 350, 411, 438, 123, , 127
ESP10, 222, 328, 352, 429, 439, 126, , 130
ESP10, 223, 334, 355, 429, 441, 128, , 132
ESP10, 225, 334, 358, 433, 443, 130, , 134
ESP10, 238, 343, 364, 437, 447, 133, , 137
ESP10, 240, 341, 365, 434, 446, 135, , 139
ESP10, 238, 342, 365, 434, 446, 137, , 141
ESP10, 224, 329, 353, 422, 434, 140, , 144
ESP10, 222, 326, 350, 417, 435, 142, , 146
ESP10, 229, 325, 354, 417, 440, 144, , 148
ESP10, 223, 317, 348, 406, 434, 147, , 151
ESP10, 222, 308, 339, 398, 425, 149, , 153
ESP10, 216, 307, 339, 397, 423, 151, , 155
ESP10, 224, 315, 344, 400, 429, 153, , 157
ESP10, 217, 304, 337, 391, 420, 156, , 160
ESP10, 219, 305, 337, 393, 421, 158, , 162
ESP10, 228, 314, 344, 399, 435, 160, , 164
ESP10, 245, 327, 353, 407, 447, 163, , 167
ESP10, 253, 338, 370, 412, 452, 165, , 169
ESP10, 250, 328, 363, 403, 445, 167, , 171
ESP10, 258, 330, 364, 412, 450, 170, , 174
ESP10, 227, 297, 334, 388, 422, 172, , 176
ESP10, 216, 286, 322, 376, 416, 174, , 178
ESP10, 223, 285, 326, 379, 423, 177, , 181
ESP10, 236, 291, 333, 386, 432, 179, , 183
ESP10, 251, 307, 340, 391, 442, 181, , 185
ESP10, 256, 314, 345, 393, 447, 184, , 188
ESP10, 252, 314, 344, 392, 443, 186, , 190
ESP10, 258, 319, 352, 397, 451, 188, , 192
ESP10, 264, 334, 359, 405, 456, 190, , 194
ESP10, 263, 332, 358, 404, 455, 193, , 197
ESP10, 261, 330, 354, 410, 451, 195, , 199
ESP10, 262, 330, 358, 412, 452, 197, , 201
ESP10, 255, 324, 357, 409, 447, 200, , 204
ESP10, 259, 324, 359, 412, 447, 202, , 206
ESP10, 259, 325, 365, 417, 448, 204, , 208
ESP10, 263, 326, 370, 420, 451, 207, , 211
ESP10, 264, 326, 377, 422, 453, 209, , 213
ESP10, 261, 324, 376, 419, 451, 211, , 215
ESP10, 259, 330, 375, 417, 449, 214, , 218
ESP10, 251, 321, 364, 408, 443, 216, , 220
ESP10, 253, 325, 365, 409, 450, 218, , 222
ESP10, 259, 328, 368, 417, 454, 220, , 224
ESP10, 254, 321, 365, 412, 449, 223, , 227
ESP10, 264, 333, 375, 427, 460, 225, , 229
ESP10, 265, 330, 375, 425, 462, 227, , 231
ESP10, 267, 325, 371, 419, 455, 230, , 234
ESP10, 283, 338, 384, 433, 468, 232, , 236
ESP10, 289, 340, 387, 435, 472, 234, , 238
ESP10, 284, 335, 382, 430, 470, 237, , 241
ESP10, 278, 326, 376, 421, 464, 239, , 243
ESP10, 258, 309, 358, 404, 450, 241, , 245
ESP10, 252, 301, 353, 398, 445, 244, , 248
ESP10, 250, 299, 354, 395, 447, 246, , 250
ESP10, 261, 307, 363, 397, 450, 248, , 252
ESP10, 262, 309, 361, 396, 449, 251, , 255
ESP10, 261, 315, 353, 391, 441, 253, , 257
ESP10, 263, 300, 349, 386, 434, 255, , 259
ESP10, 278, 308, 353, 392, 437, 257, , 261
ESP10, 273, 305, 348, 391, 431, 260, , 264
ESP10, 283, 314, 358, 400, 440, 262, , 266
ESP10, 274, 302, 355, 392, 431, 264, , 268
ESP10, 278, 306, 357, 403, 442, 267, , 271
ESP10, 274, 305, 357, 403, 440, 269, , 273
ESP10, 278, 309, 357, 404, 445, 271, , 275
ESP10, 274, 311, 356, 401, 444, 274, , 278
ESP10, 290, 318, 361, 403, 447, 276, , 280
ESP10, 293, 321, 365, 403, 446, 278, , 282
ESP10, 289, 321, 361, 399, 441, 281, , 285
ESP10, 289, 325, 364, 402, 444, 283, , 287
ESP10, 298, 335, 369, 409, 448, 285, , 289
ESP10, 289, 337, 373, 411, 446, 290, , 294
ESP10, 288, 342, 373, 415, 448, 292, , 296
ESP10, 289, 344, 375, 417, 451, 294, , 298
ESP10, 297, 345, 377, 418, 453, 297, , 301
ESP10, 305, 348, 382, 419, 453, 299, , 303
ESP10, 307, 350, 384, 421, 453, 301, , 305
ESP10, 307, 350, 384, 422, 457, 304, , 308
ESP10, 310, 350, 384, 423, 457, 306, , 310
ESP10, 311, 358, 385, 424, 459, 308, , 312
ESP10, 319, 357, 389, 425, 464, 311, , 315
ESP10, 319, 359, 393, 424, 465, 313, , 317
ESP10, 322, 363, 398, 427, 465, 315, , 319
ESP10, 321, 364, 399, 427, 465, 318, , 322
ESP10, 324, 372, 402, 428, 465, 320, , 324
ESP10, 328, 378, 406, 431, 467, 322, , 326
ESP10, 333, 379, 405, 432, 466, 324, , 328
ESP10, 341, 380, 406, 434, 468, 327, , 331
ESP10, 339, 381, 404, 436, 466, 329, , 333
ESP10, 332, 376, 402, 433, 463, 331, , 335
ESP10, 334, 378, 403, 433, 464, 334, , 338
ESP10, 335, 381, 408, 435, 466, 336, , 340
ESP10, 332, 376, 403, 429, 461, 338, , 342
ESP10, 322, 368, 394, 418, 456, 341, , 345
ESP10, 322, 371, 394, 420, 455, 343, , 347
ESP10, 323, 370, 391, 416, 452, 345, , 349
ESP10, 325, 372, 394, 419, 453, 348, , 352
ESP10, 337, 381, 403, 428, 462, 350, , 354
ESP10, 335, 379, 395, 424, 461, 352, , 356
ESP10, 332, 372, 392, 419, 460, 354, , 358
ESP10, 339, 373, 393, 420, 461, 357, , 361
ESP10, 339, 370, 392, 420, 458, 359, , 363
ESP10, 336, 369, 395, 417, 460, 361, , 365
ESP10, 336, 371, 392, 417, 458, 364, , 368
ESP10, 325, 361, 382, 407, 447, 366, , 370
ESP10, 340, 373, 392, 421, 455, 368, , 372
ESP10, 342, 372, 390, 419, 452, 371, , 375
ESP10, 351, 376, 396, 424, 456, 373, , 377
ESP10, 358, 386, 400, 430, 459, 375, , 379
ESP10, 357, 383, 396, 427, 456, 378, , 382
ESP10, 359, 387, 400, 428, 458, 380, , 384
ESP10, 349, 378, 393, 418, 447, 382, , 386
ESP10, 344, 373, 389, 415, 445, 385, , 389
ESP10, 342, 369, 385, 412, 443, 387, , 391
ESP10, 339, 368, 387, 413, 444, 389, , 393
ESP10, 340, 368, 388, 414, 447, 391, , 395
ESP10, 339, 367, 388, 416, 448, 394, , 398
ESP10, 340, 368, 390, 414, 447, 396, , 400
ESP10, 338, 358, 386, 408, 442, 398, , 402
ESP10, 333, 353, 379, 403, 435, 401, , 405
ESP10, 340, 362, 384, 409, 440, 403, , 407
ESP10, 348, 369, 390, 417, 445, 405, , 409
ESP10, 354, 371, 394, 420, 447, 408, , 412
ESP10, 354, 372, 395, 421, 447, 410, , 414
ESP10, 349, 369, 395, 418, 443, 412, , 416
ESP10, 346, 367, 393, 415, 439, 415, , 419
ESP10, 340, 366, 395, 412, 436, 417, , 421
ESP10, 340, 367, 394, 412, 436, 419, , 423
ESP10, 329, 363, 394, 409, 429, 421, , 425
ESP10, 330, 367, 399, 415, 430, 424, , 428
ESP10, 325, 363, 394, 412, 427, 426, , 430
ESP10, 321, 355, 388, 406, 423, 428, , 432
ESP10, 317, 348, 383, 398, 415, 431, , 435
ESP10, 317, 350, 382, 398, 416, 433, , 437
ESP10, 322, 355, 387, 400, 418, 435, , 439
ESP10, 326, 355, 384, 399, 418, 438, , 442
ESP10, 325, 355, 383, 399, 415, 440, , 444
ESP10, 316, 353, 374, 391, 407, 442, , 446
ESP10, 312, 343, 368, 387, 401, 445, , 449
ESP10, 306, 340, 362, 381, 397, 447, , 451
ESP10, 299, 339, 356, 376, 395, 449, , 453
ESP10, 302, 338, 357, 375, 391, 452, , 456
ESP10, 306, 343, 361, 381, 398, 454, , 458
ESP10, 304, 343, 360, 381, 396, 456, , 460
ESP10, 307, 343, 362, 383, 399, 458, , 462
ESP10, 314, 346, 367, 385, 400, 461, , 465
ESP10, 315, 337, 360, 378, 393, 463, , 467
ESP10, 318, 335, 358, 375, 391, 465, , 469
ESP10, 315, 330, 353, 369, 385, 468, , 472
ESP10, 300, 314, 339, 355, 373, 470, , 474
ESP10, 296, 307, 334, 350, 369, 472, , 476
ESP10, 300, 311, 337, 355, 371, 475, , 479
ESP10, 307, 320, 348, 362, 378, 477, , 481
ESP10, 311, 322, 351, 370, 382, 479, , 483
ESP10, 316, 334, 361, 377, 389, 482, , 486
ESP10, 320, 342, 367, 384, 396, 484, , 488
ESP10, 320, 339, 371, 386, 397, 486, , 490
ESP10, 317, 337, 368, 382, 394, 488, , 492
ESP10, 317, 336, 368, 381, 393, 491, , 495
ESP10, 310, 330, 362, 373, 387, 493, , 497
ESP10, 306, 330, 359, 373, 386, 495, , 499
ESP10, 305, 331, 361, 376, 384, 498, , 502
ESP10, 309, 336, 366, 381, 388, 500, , 504
ESP10, 313, 340, 367, 383, 391, 502, , 506
ESP10, 317, 338, 366, 383, 391, 505, , 509
ESP10, 317, 341, 368, 382, 391, 507, , 511
ESP10, 321, 345, 369, 383, 393, 509, , 513
ESP10, 324, 350, 372, 387, 395, 512, , 516
ESP10, 322, 349, 371, 387, 394, 514, , 518
ESP10, 322, 347, 370, 384, 391, 516, , 520
ESP10, 324, 351, 370, 383, 389, 519, , 523
ESP10, 330, 354, 374, 388, 394, 521, , 525
ESP10, 331, 353, 373, 385, 394, 523, , 527
ESP10, 335, 354, 374, 386, 394, 525, , 529
ESP10, 338, 351, 371, 385, 392, 528, , 532
ESP10, 339, 352, 373, 386, 393, 530, , 534
ESP10, 342, 355, 375, 389, 395, 532, , 536
ESP10, 343, 356, 377, 390, 396, 535, , 539
ESP10, 349, 366, 385, 396, 403, 537, , 541
ESP10, 353, 369, 388, 400, 409, 539, , 543
ESP10, 354, 374, 390, 402, 413, 542, , 546
ESP10, 355, 375, 393, 403, 414, 544, , 548
ESP10, 351, 373, 389, 399, 409, 546, , 550
ESP10, 349, 371, 386, 397, 406, 549, , 553
ESP10, 349, 370, 386, 396, 405, 551, , 555
ESP10, 355, 377, 390, 399, 410, 553, , 557
ESP10, 355, 376, 390, 399, 410, 555, , 559
ESP10, 361, 380, 397, 406, 416, 558, , 562
ESP10, 353, 375, 390, 400, 409, 560, , 564
ESP10, 354, 375, 391, 402, 412, 562, , 566
ESP10, 353, 373, 389, 399, 409, 565, , 569
ESP10, 352, 370, 388, 398, 407, 567, , 571
ESP10, 346, 366, 382, 393, 401, 569, , 573
ESP10, 346, 369, 382, 395, 401, 572, , 576
ESP10, 352, 376, 389, 402, 411, 574, , 578
ESP10, 349, 375, 384, 398, 407, 576, , 580
ESP10, 357, 380, 389, 403, 412, 579, , 583
ESP10, 359, 379, 388, 403, 411, 581, , 585
ESP10, 361, 378, 390, 403, 411, 583, , 587
ESP10, 367, 386, 399, 408, 417, 586, , 590
ESP10, 366, 383, 397, 407, 414, 588, , 592
ESP10, 371, 385, 398, 408, 416, 590, , 594
ESP10, 373, 383, 399, 408, 416, 592, , 596
ESP10, 371, 381, 398, 405, 413, 595, , 599
ESP10, 374, 382, 400, 407, 414, 597, , 601
ESP10, 375, 384, 402, 408, 415, 599, , 603
ESP10, 380, 393, 406, 413, 419, 602, , 606
ESP10, 385, 395, 407, 415, 420, 604, , 608
ESP10, 383, 395, 406, 413, 419, 606, , 610
ESP10, 387, 403, 411, 416, 423, 609, , 613
ESP10, 386, 400, 410, 415, 421, 611, , 615
ESP10, 386, 399, 409, 413, 420, 613, , 617
ESP10, 383, 395, 406, 410, 417, 616, , 620
ESP10, 382, 396, 405, 410, 415, 618, , 622
ESP10, 386, 397, 405, 412, 416, 620, , 624
ESP10, 393, 402, 410, 416, 420, 622, , 626
ESP10, 398, 406, 415, 420, 425, 625, , 629
ESP10, 399, 407, 416, 421, 426, 627, , 631
ESP10, 401, 407, 416, 422, 427, 629, , 633
ESP10, 402, 409, 416, 423, 427, 632, , 636
ESP10, 401, 409, 414, 421, 425, 634, , 638
ESP10, 408, 413, 420, 424, 429, 636, , 640
ESP10, 405, 411, 417, 424, 427, 639, , 643
ESP10, 405, 410, 416, 423, 426, 641, , 645
ESP10, 405, 410, 415, 423, 425, 643, , 647
ESP10, 409, 415, 420, 426, 428, 646, , 650
ESP10, 407, 413, 419, 421, 423, 669, , 673
ESP10, 408, 415, 420, 423, 424, 671, , 675
ESP10, 408, 416, 420, 423, 425, 673, , 677
ESP10, 410, 418, 423, 425, 427, 676, , 680
ESP10, 413, 422, 426, 428, 431, 678, , 682
ESP10, 415, 422, 426, 428, 431, 680, , 684
ESP10, 418, 424, 427, 430, 432, 683, , 687
ESP10, 419, 425, 428, 431, 432, 685, , 689
ESP10, 418, 424, 428, 430, 432, 687, , 691
ESP10, 420, 426, 430, 432, 433, 689, , 693
ESP10, 420, 426, 429, 431, 433, 692, , 696
ESP10, 419, 426, 430, 431, 433, 694, , 698
ESP10, 422, 427, 431, 433, 434, 696, , 700
ESP10, 423, 426, 430, 433, 433, 699, , 703
ESP10, 424, 427, 432, 433, 434, 701, , 705
ESP10, 423, 426, 430, 432, 433, 703, , 707
ESP10, 424, 428, 432, 433, 434, 706, , 710
ESP10, 425, 429, 432, 433, 435, 708, , 712
ESP10, 424, 427, 431, 433, 433, 710, , 714
ESP10, 425, 428, 431, 433, 434, 713, , 717
ESP10, 424, 428, 431, 433, 433, 715, , 719
ESP10, 425, 429, 431, 433, 434, 717, , 721
ESP10, 424, 429, 431, 433, 434, 720, , 724
ESP10, 423, 427, 429, 431, 432, 722, , 726
ESP10, 423, 428, 430, 432, 433, 724, , 728
ESP10, 423, 427, 429, 431, 433, 726, , 730
ESP10, 420, 425, 427, 429, 430, 729, , 733
ESP10, 418, 424, 426, 428, 429, 731, , 735
ESP10, 419, 425, 427, 429, 430, 733, , 737
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/watersupply/MCDW1W_SQIN.ESPF10.csv
MCDW1W_SQIN.ESPF0.csv|2025-07-16
MCDW1W_SQIN.ESPF10.csv|2025-07-16
MCDW1W_SQIN.ESPFM.csv|2025-07-16
APR-SEP
COLUMBIA - MCNARY DAM
(
MCDW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-16
Issued:
2025-07-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
64728
85538
92
108680
92790
APR-JUL
55453
73282
91
92620
80726
JAN-SEP
77626
100856
90
128310
112028
JAN-JUL
68130
88478
89
113833
99964
OCT-SEP
89983
114528
90
146225
126785
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/MCDW1W_SQIN.ESPF10.csv
MCDW1W_SQIN.ESPF0.csv|2025-07-16
MCDW1W_SQIN.ESPF10.csv|2025-07-16
MCDW1W_SQIN.ESPFM.csv|2025-07-16
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
