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Archive:
Water Year
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COLUMBIA - AT INTL BOUNDARY
(
CIBW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-07-19
Issued:
2026-07-19
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
53525
54128
95
55327
56951
APR-JUL
46900
46953
97
46994
48307
JAN-SEP
64393
64997
102
66195
63866
JAN-JUL
57768
57821
105
57862
55223
OCT-SEP
73925
74529
104
75727
71709
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-07-19
Issued:
2026-07-19
Hide Forecast
APR-SEP
53690
54122
95
55304
56951
APR-JUL
46860
46952
97
47062
48307
JAN-SEP
64558
64990
102
66173
63866
JAN-JUL
57729
57820
105
57930
55223
OCT-SEP
74090
74522
104
75704
71709
Reference
ESP with 0 Days QPF
Ensemble:
2026-07-19
Issued:
2026-07-19
Hide Forecast
APR-SEP
53805
54376
95
55604
56951
APR-JUL
46796
46994
97
47286
48307
JAN-SEP
64673
65245
102
66472
63866
JAN-JUL
57664
57862
105
58155
55223
OCT-SEP
74205
74776
104
76004
71709
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 231, 298, 354, 407, 438, 70, , 74
ESP10, 226, 295, 349, 401, 432, 73, , 77
ESP10, 229, 299, 353, 405, 438, 75, , 79
ESP10, 227, 299, 353, 403, 436, 77, , 81
ESP10, 226, 297, 352, 400, 433, 79, , 83
ESP10, 223, 294, 352, 397, 436, 82, , 86
ESP10, 227, 295, 353, 399, 443, 84, , 88
ESP10, 231, 300, 358, 400, 444, 86, , 90
ESP10, 232, 303, 362, 400, 445, 89, , 93
ESP10, 232, 305, 360, 398, 444, 91, , 95
ESP10, 235, 309, 360, 401, 445, 93, , 97
ESP10, 234, 309, 360, 400, 444, 95, , 99
ESP10, 228, 302, 353, 394, 439, 98, , 102
ESP10, 230, 304, 355, 401, 442, 100, , 104
ESP10, 232, 303, 353, 400, 442, 102, , 106
ESP10, 220, 293, 342, 390, 434, 105, , 109
ESP10, 211, 285, 333, 381, 424, 107, , 111
ESP10, 221, 296, 345, 391, 435, 109, , 113
ESP10, 221, 295, 345, 393, 436, 111, , 115
ESP10, 220, 293, 348, 399, 440, 114, , 118
ESP10, 210, 286, 347, 390, 431, 116, , 120
ESP10, 210, 287, 344, 390, 429, 118, , 122
ESP10, 204, 288, 339, 386, 430, 121, , 125
ESP10, 211, 297, 351, 397, 437, 123, , 127
ESP10, 216, 301, 356, 399, 440, 125, , 129
ESP10, 222, 309, 360, 402, 445, 127, , 131
ESP10, 224, 314, 360, 402, 446, 130, , 134
ESP10, 225, 320, 360, 403, 446, 132, , 136
ESP10, 215, 311, 351, 396, 437, 134, , 138
ESP10, 199, 298, 339, 383, 427, 137, , 141
ESP10, 201, 301, 344, 386, 433, 139, , 143
ESP10, 205, 302, 347, 392, 439, 141, , 145
ESP10, 200, 299, 344, 389, 438, 143, , 147
ESP10, 210, 310, 352, 397, 446, 146, , 150
ESP10, 219, 312, 356, 398, 447, 148, , 152
ESP10, 222, 313, 356, 398, 445, 150, , 154
ESP10, 223, 312, 355, 396, 446, 153, , 157
ESP10, 217, 302, 349, 387, 438, 155, , 159
ESP10, 225, 309, 359, 393, 444, 157, , 161
ESP10, 224, 307, 358, 389, 440, 159, , 163
ESP10, 227, 306, 358, 390, 438, 162, , 166
ESP10, 228, 306, 357, 392, 435, 164, , 168
ESP10, 240, 317, 366, 400, 442, 166, , 170
ESP10, 251, 323, 370, 401, 447, 169, , 173
ESP10, 244, 315, 360, 390, 437, 171, , 175
ESP10, 253, 319, 365, 395, 442, 173, , 177
ESP10, 246, 310, 357, 395, 437, 175, , 179
ESP10, 253, 315, 363, 399, 447, 178, , 182
ESP10, 248, 311, 357, 395, 442, 180, , 184
ESP10, 251, 313, 360, 395, 445, 182, , 186
ESP10, 255, 317, 360, 394, 445, 185, , 189
ESP10, 254, 317, 356, 390, 443, 187, , 191
ESP10, 251, 316, 360, 388, 439, 189, , 193
ESP10, 259, 328, 369, 399, 445, 191, , 195
ESP10, 253, 324, 364, 398, 441, 194, , 198
ESP10, 255, 323, 360, 396, 442, 196, , 200
ESP10, 254, 319, 357, 393, 442, 198, , 202
ESP10, 255, 318, 359, 395, 443, 201, , 205
ESP10, 255, 321, 365, 399, 444, 203, , 207
ESP10, 249, 311, 351, 389, 435, 205, , 209
ESP10, 236, 298, 339, 382, 424, 207, , 211
ESP10, 240, 301, 341, 383, 426, 210, , 214
ESP10, 236, 295, 337, 377, 420, 212, , 216
ESP10, 223, 276, 317, 358, 409, 214, , 218
ESP10, 224, 277, 325, 361, 414, 217, , 221
ESP10, 220, 274, 319, 356, 411, 219, , 223
ESP10, 226, 281, 327, 364, 418, 221, , 225
ESP10, 212, 264, 312, 349, 404, 223, , 227
ESP10, 181, 236, 282, 319, 377, 226, , 230
ESP10, 173, 230, 272, 309, 371, 228, , 232
ESP10, 173, 236, 272, 309, 373, 230, , 234
ESP10, 180, 249, 280, 318, 383, 233, , 237
ESP10, 182, 250, 283, 322, 390, 235, , 239
ESP10, 176, 241, 276, 315, 383, 237, , 241
ESP10, 180, 238, 285, 313, 381, 240, , 244
ESP10, 186, 238, 288, 316, 382, 242, , 246
ESP10, 188, 239, 293, 319, 384, 244, , 248
ESP10, 186, 239, 291, 316, 381, 246, , 250
ESP10, 180, 232, 281, 308, 372, 249, , 253
ESP10, 185, 229, 273, 303, 367, 251, , 255
ESP10, 197, 237, 282, 309, 373, 253, , 257
ESP10, 201, 235, 282, 307, 372, 256, , 260
ESP10, 213, 245, 292, 317, 383, 258, , 262
ESP10, 218, 247, 296, 324, 386, 260, , 264
ESP10, 213, 239, 290, 320, 382, 262, , 266
ESP10, 209, 235, 286, 319, 379, 265, , 269
ESP10, 213, 241, 286, 321, 380, 267, , 271
ESP10, 218, 245, 289, 325, 387, 269, , 273
ESP10, 215, 249, 288, 323, 385, 272, , 276
ESP10, 219, 251, 293, 323, 387, 274, , 278
ESP10, 224, 262, 302, 328, 389, 276, , 280
ESP10, 223, 260, 298, 327, 386, 278, , 282
ESP10, 220, 255, 294, 322, 385, 281, , 285
ESP10, 221, 258, 298, 324, 390, 283, , 287
ESP10, 211, 252, 292, 317, 384, 285, , 289
ESP10, 210, 252, 292, 320, 383, 288, , 292
ESP10, 210, 250, 291, 318, 380, 290, , 294
ESP10, 209, 252, 287, 320, 378, 292, , 296
ESP10, 211, 254, 285, 318, 375, 294, , 298
ESP10, 212, 250, 281, 315, 371, 297, , 301
ESP10, 209, 247, 282, 316, 368, 299, , 303
ESP10, 210, 245, 283, 319, 370, 301, , 305
ESP10, 210, 243, 283, 319, 366, 304, , 308
ESP10, 208, 243, 281, 316, 363, 306, , 310
ESP10, 208, 247, 281, 314, 362, 308, , 312
ESP10, 209, 250, 283, 315, 361, 310, , 314
ESP10, 212, 255, 283, 314, 361, 313, , 317
ESP10, 213, 257, 286, 315, 361, 315, , 319
ESP10, 214, 262, 287, 315, 363, 317, , 321
ESP10, 225, 272, 296, 321, 368, 320, , 324
ESP10, 231, 278, 301, 328, 370, 322, , 326
ESP10, 236, 282, 306, 333, 376, 324, , 328
ESP10, 235, 283, 306, 333, 376, 326, , 330
ESP10, 239, 287, 314, 335, 380, 329, , 333
ESP10, 238, 287, 316, 335, 380, 331, , 335
ESP10, 236, 283, 311, 331, 375, 333, , 337
ESP10, 240, 287, 312, 337, 378, 336, , 340
ESP10, 241, 290, 313, 339, 379, 338, , 342
ESP10, 242, 292, 313, 340, 378, 340, , 344
ESP10, 240, 295, 315, 341, 377, 342, , 346
ESP10, 241, 293, 315, 340, 376, 345, , 349
ESP10, 234, 282, 305, 330, 369, 347, , 351
ESP10, 227, 274, 297, 325, 361, 349, , 353
ESP10, 234, 277, 301, 329, 364, 352, , 356
ESP10, 244, 279, 302, 328, 366, 354, , 358
ESP10, 248, 277, 303, 327, 365, 356, , 360
ESP10, 245, 274, 301, 323, 360, 358, , 362
ESP10, 255, 286, 307, 331, 367, 361, , 365
ESP10, 256, 285, 305, 331, 363, 363, , 367
ESP10, 254, 284, 305, 330, 360, 365, , 369
ESP10, 256, 289, 311, 332, 361, 368, , 372
ESP10, 257, 291, 315, 335, 362, 370, , 374
ESP10, 252, 285, 308, 331, 356, 372, , 376
ESP10, 257, 288, 311, 336, 358, 374, , 378
ESP10, 255, 288, 308, 337, 354, 377, , 381
ESP10, 243, 276, 297, 328, 342, 379, , 383
ESP10, 242, 277, 296, 329, 344, 381, , 385
ESP10, 247, 282, 304, 334, 349, 384, , 388
ESP10, 241, 271, 295, 324, 340, 386, , 390
ESP10, 252, 278, 303, 330, 349, 388, , 392
ESP10, 247, 272, 297, 321, 345, 390, , 394
ESP10, 253, 279, 303, 326, 350, 393, , 397
ESP10, 248, 274, 298, 323, 346, 395, , 399
ESP10, 254, 279, 305, 328, 352, 397, , 401
ESP10, 257, 281, 306, 330, 353, 400, , 404
ESP10, 264, 282, 307, 331, 356, 402, , 406
ESP10, 264, 284, 307, 330, 355, 404, , 408
ESP10, 258, 280, 301, 322, 349, 406, , 410
ESP10, 256, 276, 296, 316, 343, 409, , 413
ESP10, 250, 268, 287, 305, 332, 411, , 415
ESP10, 250, 271, 290, 309, 331, 413, , 417
ESP10, 245, 266, 286, 305, 326, 416, , 420
ESP10, 237, 261, 282, 300, 318, 418, , 422
ESP10, 234, 256, 280, 295, 315, 420, , 424
ESP10, 231, 253, 275, 289, 310, 422, , 426
ESP10, 231, 258, 272, 287, 309, 425, , 429
ESP10, 221, 249, 261, 275, 297, 427, , 431
ESP10, 226, 251, 264, 277, 299, 429, , 433
ESP10, 209, 233, 248, 262, 285, 432, , 436
ESP10, 224, 246, 260, 275, 297, 434, , 438
ESP10, 223, 245, 260, 277, 297, 436, , 440
ESP10, 217, 241, 255, 271, 291, 438, , 442
ESP10, 211, 236, 250, 270, 285, 441, , 445
ESP10, 219, 245, 258, 278, 292, 443, , 447
ESP10, 215, 240, 252, 273, 289, 445, , 449
ESP10, 215, 236, 248, 268, 285, 448, , 452
ESP10, 214, 233, 243, 262, 282, 450, , 454
ESP10, 216, 237, 244, 262, 283, 452, , 456
ESP10, 213, 232, 243, 260, 280, 454, , 458
ESP10, 215, 231, 243, 261, 282, 457, , 461
ESP10, 215, 230, 242, 260, 279, 459, , 463
ESP10, 221, 236, 249, 264, 285, 461, , 465
ESP10, 225, 236, 250, 264, 285, 464, , 468
ESP10, 218, 228, 243, 256, 277, 466, , 470
ESP10, 215, 225, 238, 254, 274, 468, , 472
ESP10, 216, 228, 243, 260, 277, 470, , 474
ESP10, 218, 230, 247, 261, 280, 473, , 477
ESP10, 220, 232, 250, 267, 283, 475, , 479
ESP10, 224, 239, 255, 273, 287, 477, , 481
ESP10, 229, 241, 258, 277, 291, 480, , 484
ESP10, 237, 248, 266, 285, 298, 482, , 486
ESP10, 237, 254, 267, 286, 299, 484, , 488
ESP10, 236, 253, 266, 282, 297, 486, , 490
ESP10, 240, 257, 274, 288, 303, 489, , 493
ESP10, 240, 257, 277, 292, 304, 491, , 495
ESP10, 236, 253, 274, 289, 301, 493, , 497
ESP10, 234, 253, 272, 288, 300, 496, , 500
ESP10, 236, 258, 276, 293, 303, 498, , 502
ESP10, 234, 256, 273, 292, 302, 500, , 504
ESP10, 231, 249, 267, 285, 295, 502, , 506
ESP10, 226, 245, 266, 281, 292, 505, , 509
ESP10, 225, 244, 266, 279, 290, 507, , 511
ESP10, 231, 249, 272, 285, 297, 509, , 513
ESP10, 236, 252, 273, 288, 300, 512, , 516
ESP10, 234, 254, 270, 285, 295, 514, , 518
ESP10, 241, 264, 274, 290, 302, 516, , 520
ESP10, 241, 262, 273, 288, 300, 518, , 522
ESP10, 244, 263, 276, 290, 304, 521, , 525
ESP10, 242, 257, 272, 285, 300, 523, , 527
ESP10, 242, 260, 276, 289, 302, 525, , 529
ESP10, 244, 264, 279, 293, 305, 528, , 532
ESP10, 245, 265, 281, 296, 306, 530, , 534
ESP10, 245, 266, 282, 297, 306, 532, , 536
ESP10, 254, 276, 293, 306, 316, 534, , 538
ESP10, 252, 273, 291, 304, 315, 537, , 541
ESP10, 252, 275, 292, 306, 318, 539, , 543
ESP10, 251, 276, 290, 305, 317, 541, , 545
ESP10, 250, 276, 288, 302, 314, 544, , 548
ESP10, 252, 280, 292, 304, 316, 546, , 550
ESP10, 250, 280, 291, 303, 314, 548, , 552
ESP10, 251, 281, 291, 306, 315, 550, , 554
ESP10, 258, 286, 297, 312, 320, 553, , 557
ESP10, 262, 292, 302, 316, 323, 555, , 559
ESP10, 264, 292, 303, 317, 324, 557, , 561
ESP10, 265, 291, 305, 315, 323, 560, , 564
ESP10, 266, 288, 302, 314, 320, 562, , 566
ESP10, 270, 290, 304, 317, 322, 564, , 568
ESP10, 268, 288, 305, 316, 322, 566, , 570
ESP10, 266, 286, 302, 315, 324, 569, , 573
ESP10, 267, 285, 301, 314, 323, 571, , 575
ESP10, 268, 286, 301, 314, 322, 573, , 577
ESP10, 269, 284, 298, 313, 320, 576, , 580
ESP10, 265, 282, 298, 311, 317, 578, , 582
ESP10, 267, 282, 302, 310, 318, 580, , 584
ESP10, 266, 278, 299, 309, 316, 583, , 587
ESP10, 270, 279, 300, 309, 318, 585, , 589
ESP10, 268, 278, 298, 309, 317, 587, , 591
ESP10, 270, 283, 301, 311, 318, 589, , 593
ESP10, 271, 286, 303, 313, 322, 592, , 596
ESP10, 275, 290, 307, 318, 327, 594, , 598
ESP10, 270, 286, 302, 312, 323, 596, , 600
ESP10, 268, 283, 298, 309, 318, 599, , 603
ESP10, 272, 286, 301, 308, 318, 601, , 605
ESP10, 268, 284, 297, 304, 313, 603, , 607
ESP10, 270, 286, 298, 306, 314, 605, , 609
ESP10, 266, 281, 295, 301, 309, 608, , 612
ESP10, 265, 278, 293, 301, 308, 610, , 614
ESP10, 268, 282, 293, 303, 309, 612, , 616
ESP10, 271, 284, 295, 305, 313, 615, , 619
ESP10, 263, 276, 288, 298, 305, 617, , 621
ESP10, 271, 279, 292, 302, 309, 619, , 623
ESP10, 270, 276, 290, 300, 308, 621, , 625
ESP10, 270, 277, 289, 299, 309, 624, , 628
ESP10, 271, 279, 291, 304, 311, 626, , 630
ESP10, 272, 278, 287, 303, 311, 628, , 632
ESP10, 274, 281, 290, 302, 311, 631, , 635
ESP10, 279, 289, 297, 309, 316, 633, , 637
ESP10, 282, 292, 299, 312, 320, 635, , 639
ESP10, 284, 294, 301, 313, 321, 637, , 641
ESP10, 280, 293, 300, 312, 318, 640, , 644
ESP10, 289, 302, 311, 321, 327, 642, , 646
ESP10, 289, 303, 313, 322, 327, 644, , 648
ESP10, 300, 310, 319, 329, 334, 647, , 651
ESP10, 300, 307, 317, 327, 330, 649, , 653
ESP10, 300, 308, 317, 326, 330, 651, , 655
ESP10, 302, 310, 319, 328, 332, 653, , 657
ESP10, 303, 312, 320, 329, 333, 656, , 660
ESP10, 300, 310, 319, 326, 331, 658, , 662
ESP10, 300, 310, 320, 326, 331, 660, , 664
ESP10, 303, 314, 323, 330, 334, 663, , 667
ESP10, 304, 316, 325, 332, 335, 665, , 669
ESP10, 302, 315, 324, 330, 334, 667, , 671
ESP10, 303, 317, 325, 331, 335, 669, , 673
ESP10, 299, 312, 320, 327, 334, 672, , 676
ESP10, 312, 322, 331, 336, 344, 674, , 678
ESP10, 311, 322, 329, 337, 342, 676, , 680
ESP10, 312, 323, 330, 336, 343, 679, , 683
ESP10, 307, 316, 325, 331, 337, 681, , 685
ESP10, 307, 318, 326, 330, 337, 683, , 687
ESP10, 304, 316, 324, 327, 334, 685, , 689
ESP10, 309, 320, 328, 332, 338, 688, , 692
ESP10, 314, 322, 331, 335, 340, 690, , 694
ESP10, 313, 320, 328, 333, 337, 692, , 696
ESP10, 315, 320, 329, 334, 337, 695, , 699
ESP10, 314, 319, 329, 334, 336, 697, , 701
ESP10, 317, 323, 333, 337, 340, 699, , 703
ESP10, 325, 330, 337, 340, 343, 701, , 705
ESP10, 326, 329, 337, 340, 343, 704, , 708
ESP10, 327, 331, 337, 340, 343, 706, , 710
ESP10, 327, 331, 336, 340, 342, 708, , 712
ESP10, 327, 332, 338, 342, 343, 711, , 715
ESP10, 327, 333, 338, 341, 342, 713, , 717
ESP10, 326, 332, 337, 341, 342, 715, , 719
ESP10, 325, 330, 335, 339, 340, 717, , 721
ESP10, 324, 330, 334, 338, 339, 720, , 724
ESP10, 326, 332, 336, 340, 341, 722, , 726
ESP10, 325, 332, 337, 339, 341, 724, , 728
ESP10, 326, 332, 336, 338, 341, 727, , 731
ESP10, 327, 332, 337, 339, 341, 729, , 733
ESP10, 327, 333, 337, 339, 341, 731, , 735
ESP10, 326, 333, 336, 339, 342, 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/CIBW1W_SQIN.ESPF10.csv
CIBW1W_SQIN.ESPF0.csv|2026-07-19
CIBW1W_SQIN.ESPF10.csv|2026-07-19
CIBW1W_SQIN.ESPFM.csv|2026-07-19
APR-SEP
COLUMBIA - AT INTL BOUNDARY
(
CIBW1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-07-19
Issued:
2026-07-19
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
43684
54511
96
71183
56951
APR-JUL
36110
44598
92
59556
48307
JAN-SEP
48830
60051
94
76900
63866
JAN-JUL
40723
52004
94
65488
55223
OCT-SEP
54883
68325
95
83868
71709
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/CIBW1W_SQIN.ESPF10.csv
CIBW1W_SQIN.ESPF0.csv|2026-07-19
CIBW1W_SQIN.ESPF10.csv|2026-07-19
CIBW1W_SQIN.ESPFM.csv|2026-07-19
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
