Choose Date:
Archive:
Water Year
Loading...
COLUMBIA - AT INTL BOUNDARY
(
CIBW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
53331
53626
94
54174
56951
APR-JUL
47111
47111
98
47111
48307
APR-AUG
51009
51094
95
51184
53664
JAN-SEP
64200
64495
101
65043
63866
JAN-JUL
57980
57980
105
57980
55223
OCT-SEP
73731
74026
103
74574
71709
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
53446
53706
94
54100
56951
APR-JUL
47111
47111
98
47111
48307
APR-AUG
51072
51167
95
51297
53664
JAN-SEP
64314
64574
101
64968
63866
JAN-JUL
57980
57980
105
57980
55223
OCT-SEP
73846
74106
103
74500
71709
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
53431
53704
94
54295
56951
APR-JUL
47111
47111
98
47111
48307
APR-AUG
50989
51108
95
51316
53664
JAN-SEP
64299
64572
101
65163
63866
JAN-JUL
57980
57980
105
57980
55223
OCT-SEP
73831
74104
103
74695
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, 72, , 76
ESP10, 229, 299, 353, 405, 438, 74, , 78
ESP10, 227, 299, 353, 403, 436, 76, , 80
ESP10, 226, 297, 352, 400, 433, 78, , 82
ESP10, 223, 294, 352, 397, 436, 81, , 85
ESP10, 227, 295, 353, 399, 443, 83, , 87
ESP10, 231, 300, 358, 400, 444, 85, , 89
ESP10, 232, 303, 362, 400, 445, 87, , 91
ESP10, 232, 305, 360, 398, 444, 89, , 93
ESP10, 235, 309, 360, 401, 445, 91, , 95
ESP10, 234, 309, 360, 400, 444, 93, , 97
ESP10, 228, 302, 353, 394, 439, 95, , 99
ESP10, 230, 304, 355, 401, 442, 97, , 101
ESP10, 232, 303, 353, 400, 442, 99, , 103
ESP10, 220, 293, 342, 390, 434, 102, , 106
ESP10, 211, 285, 333, 381, 424, 104, , 108
ESP10, 221, 296, 345, 391, 435, 106, , 110
ESP10, 221, 295, 345, 393, 436, 108, , 112
ESP10, 220, 293, 348, 399, 440, 110, , 114
ESP10, 210, 286, 347, 390, 431, 112, , 116
ESP10, 210, 287, 344, 390, 429, 114, , 118
ESP10, 204, 288, 339, 386, 430, 116, , 120
ESP10, 211, 297, 351, 397, 437, 118, , 122
ESP10, 216, 301, 356, 399, 440, 120, , 124
ESP10, 222, 309, 360, 402, 445, 122, , 126
ESP10, 224, 314, 360, 402, 446, 125, , 129
ESP10, 225, 320, 360, 403, 446, 127, , 131
ESP10, 215, 311, 351, 396, 437, 129, , 133
ESP10, 199, 298, 339, 383, 427, 131, , 135
ESP10, 201, 301, 344, 386, 433, 133, , 137
ESP10, 205, 302, 347, 392, 439, 135, , 139
ESP10, 200, 299, 344, 389, 438, 137, , 141
ESP10, 210, 310, 352, 397, 446, 139, , 143
ESP10, 219, 312, 356, 398, 447, 141, , 145
ESP10, 222, 313, 356, 398, 445, 143, , 147
ESP10, 223, 312, 355, 396, 446, 145, , 149
ESP10, 217, 302, 349, 387, 438, 148, , 152
ESP10, 225, 309, 359, 393, 444, 150, , 154
ESP10, 224, 307, 358, 389, 440, 152, , 156
ESP10, 227, 306, 358, 390, 438, 154, , 158
ESP10, 228, 306, 357, 392, 435, 156, , 160
ESP10, 240, 317, 366, 400, 442, 158, , 162
ESP10, 251, 323, 370, 401, 447, 160, , 164
ESP10, 244, 315, 360, 390, 437, 162, , 166
ESP10, 253, 319, 365, 395, 442, 164, , 168
ESP10, 246, 310, 357, 395, 437, 166, , 170
ESP10, 253, 315, 363, 399, 447, 169, , 173
ESP10, 248, 311, 357, 395, 442, 171, , 175
ESP10, 251, 313, 360, 395, 445, 173, , 177
ESP10, 255, 317, 360, 394, 445, 175, , 179
ESP10, 254, 317, 356, 390, 443, 177, , 181
ESP10, 251, 316, 360, 388, 439, 179, , 183
ESP10, 259, 328, 369, 399, 445, 181, , 185
ESP10, 253, 324, 364, 398, 441, 183, , 187
ESP10, 255, 323, 360, 396, 442, 185, , 189
ESP10, 254, 319, 357, 393, 442, 187, , 191
ESP10, 255, 318, 359, 395, 443, 189, , 193
ESP10, 255, 321, 365, 399, 444, 192, , 196
ESP10, 249, 311, 351, 389, 435, 194, , 198
ESP10, 236, 298, 339, 382, 424, 196, , 200
ESP10, 240, 301, 341, 383, 426, 198, , 202
ESP10, 236, 295, 337, 377, 420, 200, , 204
ESP10, 223, 276, 317, 358, 409, 202, , 206
ESP10, 224, 277, 325, 361, 414, 204, , 208
ESP10, 220, 274, 319, 356, 411, 206, , 210
ESP10, 226, 281, 327, 364, 418, 208, , 212
ESP10, 212, 264, 312, 349, 404, 210, , 214
ESP10, 181, 236, 282, 319, 377, 212, , 216
ESP10, 173, 230, 272, 309, 371, 215, , 219
ESP10, 173, 236, 272, 309, 373, 217, , 221
ESP10, 180, 249, 280, 318, 383, 219, , 223
ESP10, 182, 250, 283, 322, 390, 221, , 225
ESP10, 176, 241, 276, 315, 383, 223, , 227
ESP10, 180, 238, 285, 313, 381, 225, , 229
ESP10, 186, 238, 288, 316, 382, 227, , 231
ESP10, 188, 239, 293, 319, 384, 229, , 233
ESP10, 186, 239, 291, 316, 381, 231, , 235
ESP10, 180, 232, 281, 308, 372, 233, , 237
ESP10, 185, 229, 273, 303, 367, 236, , 240
ESP10, 197, 237, 282, 309, 373, 238, , 242
ESP10, 201, 235, 282, 307, 372, 240, , 244
ESP10, 213, 245, 292, 317, 383, 242, , 246
ESP10, 218, 247, 296, 324, 386, 244, , 248
ESP10, 213, 239, 290, 320, 382, 246, , 250
ESP10, 209, 235, 286, 319, 379, 248, , 252
ESP10, 213, 241, 286, 321, 380, 250, , 254
ESP10, 218, 245, 289, 325, 387, 252, , 256
ESP10, 215, 249, 288, 323, 385, 254, , 258
ESP10, 219, 251, 293, 323, 387, 256, , 260
ESP10, 224, 262, 302, 328, 389, 259, , 263
ESP10, 223, 260, 298, 327, 386, 261, , 265
ESP10, 220, 255, 294, 322, 385, 263, , 267
ESP10, 221, 258, 298, 324, 390, 265, , 269
ESP10, 211, 252, 292, 317, 384, 267, , 271
ESP10, 210, 252, 292, 320, 383, 269, , 273
ESP10, 210, 250, 291, 318, 380, 271, , 275
ESP10, 209, 252, 287, 320, 378, 273, , 277
ESP10, 211, 254, 285, 318, 375, 275, , 279
ESP10, 212, 250, 281, 315, 371, 277, , 281
ESP10, 209, 247, 282, 316, 368, 279, , 283
ESP10, 210, 245, 283, 319, 370, 282, , 286
ESP10, 210, 243, 283, 319, 366, 284, , 288
ESP10, 208, 243, 281, 316, 363, 286, , 290
ESP10, 208, 247, 281, 314, 362, 288, , 292
ESP10, 209, 250, 283, 315, 361, 290, , 294
ESP10, 212, 255, 283, 314, 361, 292, , 296
ESP10, 213, 257, 286, 315, 361, 294, , 298
ESP10, 214, 262, 287, 315, 363, 296, , 300
ESP10, 225, 272, 296, 321, 368, 298, , 302
ESP10, 231, 278, 301, 328, 370, 300, , 304
ESP10, 236, 282, 306, 333, 376, 303, , 307
ESP10, 235, 283, 306, 333, 376, 305, , 309
ESP10, 239, 287, 314, 335, 380, 307, , 311
ESP10, 238, 287, 316, 335, 380, 309, , 313
ESP10, 236, 283, 311, 331, 375, 311, , 315
ESP10, 240, 287, 312, 337, 378, 313, , 317
ESP10, 241, 290, 313, 339, 379, 315, , 319
ESP10, 242, 292, 313, 340, 378, 317, , 321
ESP10, 240, 295, 315, 341, 377, 319, , 323
ESP10, 241, 293, 315, 340, 376, 321, , 325
ESP10, 234, 282, 305, 330, 369, 323, , 327
ESP10, 227, 274, 297, 325, 361, 326, , 330
ESP10, 234, 277, 301, 329, 364, 328, , 332
ESP10, 244, 279, 302, 328, 366, 330, , 334
ESP10, 248, 277, 303, 327, 365, 332, , 336
ESP10, 245, 274, 301, 323, 360, 334, , 338
ESP10, 255, 286, 307, 331, 367, 336, , 340
ESP10, 256, 285, 305, 331, 363, 338, , 342
ESP10, 254, 284, 305, 330, 360, 340, , 344
ESP10, 256, 289, 311, 332, 361, 342, , 346
ESP10, 257, 291, 315, 335, 362, 344, , 348
ESP10, 252, 285, 308, 331, 356, 346, , 350
ESP10, 257, 288, 311, 336, 358, 349, , 353
ESP10, 255, 288, 308, 337, 354, 351, , 355
ESP10, 243, 276, 297, 328, 342, 353, , 357
ESP10, 242, 277, 296, 329, 344, 355, , 359
ESP10, 247, 282, 304, 334, 349, 357, , 361
ESP10, 241, 271, 295, 324, 340, 359, , 363
ESP10, 252, 278, 303, 330, 349, 361, , 365
ESP10, 247, 272, 297, 321, 345, 363, , 367
ESP10, 253, 279, 303, 326, 350, 365, , 369
ESP10, 248, 274, 298, 323, 346, 367, , 371
ESP10, 254, 279, 305, 328, 352, 370, , 374
ESP10, 257, 281, 306, 330, 353, 372, , 376
ESP10, 264, 282, 307, 331, 356, 374, , 378
ESP10, 264, 284, 307, 330, 355, 376, , 380
ESP10, 258, 280, 301, 322, 349, 378, , 382
ESP10, 256, 276, 296, 316, 343, 380, , 384
ESP10, 250, 268, 287, 305, 332, 382, , 386
ESP10, 250, 271, 290, 309, 331, 384, , 388
ESP10, 245, 266, 286, 305, 326, 386, , 390
ESP10, 237, 261, 282, 300, 318, 388, , 392
ESP10, 234, 256, 280, 295, 315, 390, , 394
ESP10, 231, 253, 275, 289, 310, 393, , 397
ESP10, 231, 258, 272, 287, 309, 395, , 399
ESP10, 221, 249, 261, 275, 297, 397, , 401
ESP10, 226, 251, 264, 277, 299, 399, , 403
ESP10, 209, 233, 248, 262, 285, 401, , 405
ESP10, 224, 246, 260, 275, 297, 403, , 407
ESP10, 223, 245, 260, 277, 297, 405, , 409
ESP10, 217, 241, 255, 271, 291, 407, , 411
ESP10, 211, 236, 250, 270, 285, 409, , 413
ESP10, 219, 245, 258, 278, 292, 411, , 415
ESP10, 215, 240, 252, 273, 289, 413, , 417
ESP10, 215, 236, 248, 268, 285, 416, , 420
ESP10, 214, 233, 243, 262, 282, 418, , 422
ESP10, 216, 237, 244, 262, 283, 420, , 424
ESP10, 213, 232, 243, 260, 280, 422, , 426
ESP10, 215, 231, 243, 261, 282, 424, , 428
ESP10, 215, 230, 242, 260, 279, 426, , 430
ESP10, 221, 236, 249, 264, 285, 428, , 432
ESP10, 225, 236, 250, 264, 285, 430, , 434
ESP10, 218, 228, 243, 256, 277, 432, , 436
ESP10, 215, 225, 238, 254, 274, 434, , 438
ESP10, 216, 228, 243, 260, 277, 437, , 441
ESP10, 218, 230, 247, 261, 280, 439, , 443
ESP10, 220, 232, 250, 267, 283, 441, , 445
ESP10, 224, 239, 255, 273, 287, 443, , 447
ESP10, 229, 241, 258, 277, 291, 445, , 449
ESP10, 237, 248, 266, 285, 298, 447, , 451
ESP10, 237, 254, 267, 286, 299, 449, , 453
ESP10, 236, 253, 266, 282, 297, 451, , 455
ESP10, 240, 257, 274, 288, 303, 453, , 457
ESP10, 240, 257, 277, 292, 304, 455, , 459
ESP10, 236, 253, 274, 289, 301, 457, , 461
ESP10, 234, 253, 272, 288, 300, 460, , 464
ESP10, 236, 258, 276, 293, 303, 462, , 466
ESP10, 234, 256, 273, 292, 302, 464, , 468
ESP10, 231, 249, 267, 285, 295, 466, , 470
ESP10, 226, 245, 266, 281, 292, 468, , 472
ESP10, 225, 244, 266, 279, 290, 470, , 474
ESP10, 231, 249, 272, 285, 297, 472, , 476
ESP10, 236, 252, 273, 288, 300, 474, , 478
ESP10, 234, 254, 270, 285, 295, 476, , 480
ESP10, 241, 264, 274, 290, 302, 478, , 482
ESP10, 241, 262, 273, 288, 300, 480, , 484
ESP10, 244, 263, 276, 290, 304, 483, , 487
ESP10, 242, 257, 272, 285, 300, 485, , 489
ESP10, 242, 260, 276, 289, 302, 487, , 491
ESP10, 244, 264, 279, 293, 305, 489, , 493
ESP10, 245, 265, 281, 296, 306, 491, , 495
ESP10, 245, 266, 282, 297, 306, 493, , 497
ESP10, 254, 276, 293, 306, 316, 495, , 499
ESP10, 252, 273, 291, 304, 315, 497, , 501
ESP10, 252, 275, 292, 306, 318, 499, , 503
ESP10, 251, 276, 290, 305, 317, 501, , 505
ESP10, 250, 276, 288, 302, 314, 504, , 508
ESP10, 252, 280, 292, 304, 316, 506, , 510
ESP10, 250, 280, 291, 303, 314, 508, , 512
ESP10, 251, 281, 291, 306, 315, 510, , 514
ESP10, 258, 286, 297, 312, 320, 512, , 516
ESP10, 262, 292, 302, 316, 323, 514, , 518
ESP10, 264, 292, 303, 317, 324, 516, , 520
ESP10, 265, 291, 305, 315, 323, 518, , 522
ESP10, 266, 288, 302, 314, 320, 520, , 524
ESP10, 270, 290, 304, 317, 322, 522, , 526
ESP10, 268, 288, 305, 316, 322, 524, , 528
ESP10, 266, 286, 302, 315, 324, 527, , 531
ESP10, 267, 285, 301, 314, 323, 529, , 533
ESP10, 268, 286, 301, 314, 322, 531, , 535
ESP10, 269, 284, 298, 313, 320, 533, , 537
ESP10, 265, 282, 298, 311, 317, 535, , 539
ESP10, 267, 282, 302, 310, 318, 537, , 541
ESP10, 266, 278, 299, 309, 316, 539, , 543
ESP10, 270, 279, 300, 309, 318, 541, , 545
ESP10, 268, 278, 298, 309, 317, 543, , 547
ESP10, 270, 283, 301, 311, 318, 545, , 549
ESP10, 271, 286, 303, 313, 322, 547, , 551
ESP10, 275, 290, 307, 318, 327, 550, , 554
ESP10, 270, 286, 302, 312, 323, 552, , 556
ESP10, 268, 283, 298, 309, 318, 554, , 558
ESP10, 272, 286, 301, 308, 318, 556, , 560
ESP10, 268, 284, 297, 304, 313, 558, , 562
ESP10, 270, 286, 298, 306, 314, 560, , 564
ESP10, 266, 281, 295, 301, 309, 562, , 566
ESP10, 265, 278, 293, 301, 308, 564, , 568
ESP10, 268, 282, 293, 303, 309, 566, , 570
ESP10, 271, 284, 295, 305, 313, 568, , 572
ESP10, 263, 276, 288, 298, 305, 571, , 575
ESP10, 271, 279, 292, 302, 309, 573, , 577
ESP10, 270, 276, 290, 300, 308, 575, , 579
ESP10, 270, 277, 289, 299, 309, 577, , 581
ESP10, 271, 279, 291, 304, 311, 579, , 583
ESP10, 272, 278, 287, 303, 311, 581, , 585
ESP10, 274, 281, 290, 302, 311, 583, , 587
ESP10, 279, 289, 297, 309, 316, 585, , 589
ESP10, 282, 292, 299, 312, 320, 587, , 591
ESP10, 284, 294, 301, 313, 321, 589, , 593
ESP10, 280, 293, 300, 312, 318, 591, , 595
ESP10, 289, 302, 311, 321, 327, 594, , 598
ESP10, 289, 303, 313, 322, 327, 596, , 600
ESP10, 300, 310, 319, 329, 334, 598, , 602
ESP10, 300, 307, 317, 327, 330, 600, , 604
ESP10, 300, 308, 317, 326, 330, 602, , 606
ESP10, 302, 310, 319, 328, 332, 604, , 608
ESP10, 303, 312, 320, 329, 333, 606, , 610
ESP10, 300, 310, 319, 326, 331, 608, , 612
ESP10, 300, 310, 320, 326, 331, 610, , 614
ESP10, 303, 314, 323, 330, 334, 612, , 616
ESP10, 304, 316, 325, 332, 335, 614, , 618
ESP10, 302, 315, 324, 330, 334, 617, , 621
ESP10, 303, 317, 325, 331, 335, 619, , 623
ESP10, 299, 312, 320, 327, 334, 621, , 625
ESP10, 312, 322, 331, 336, 344, 623, , 627
ESP10, 311, 322, 329, 337, 342, 625, , 629
ESP10, 312, 323, 330, 336, 343, 627, , 631
ESP10, 307, 316, 325, 331, 337, 629, , 633
ESP10, 307, 318, 326, 330, 337, 631, , 635
ESP10, 304, 316, 324, 327, 334, 633, , 637
ESP10, 309, 320, 328, 332, 338, 635, , 639
ESP10, 314, 322, 331, 335, 340, 638, , 642
ESP10, 313, 320, 328, 333, 337, 640, , 644
ESP10, 315, 320, 329, 334, 337, 642, , 646
ESP10, 314, 319, 329, 334, 336, 644, , 648
ESP10, 317, 323, 333, 337, 340, 646, , 650
ESP10, 325, 330, 337, 340, 343, 648, , 652
ESP10, 326, 329, 337, 340, 343, 650, , 654
ESP10, 327, 331, 337, 340, 343, 652, , 656
ESP10, 327, 331, 336, 340, 342, 654, , 658
ESP10, 327, 332, 338, 342, 343, 656, , 660
ESP10, 327, 333, 338, 341, 342, 658, , 662
ESP10, 326, 332, 337, 341, 342, 661, , 665
ESP10, 325, 330, 335, 339, 340, 663, , 667
ESP10, 324, 330, 334, 338, 339, 665, , 669
ESP10, 326, 332, 336, 340, 341, 667, , 671
ESP10, 325, 332, 337, 339, 341, 669, , 673
ESP10, 326, 332, 336, 338, 341, 671, , 675
ESP10, 327, 332, 337, 339, 341, 673, , 677
ESP10, 327, 333, 337, 339, 341, 675, , 679
ESP10, 326, 333, 336, 339, 342, 677, , 681
ESP10, 327, 332, 337, 339, 341, 679, , 683
ESP10, 327, 332, 336, 339, 341, 681, , 685
ESP10, 326, 332, 336, 338, 341, 684, , 688
ESP10, 327, 332, 337, 338, 340, 686, , 690
ESP10, 329, 333, 337, 339, 341, 688, , 692
ESP10, 329, 333, 338, 339, 341, 690, , 694
ESP10, 330, 333, 338, 340, 341, 692, , 696
ESP10, 330, 334, 337, 339, 341, 694, , 698
ESP10, 332, 336, 339, 341, 343, 696, , 700
ESP10, 331, 336, 339, 341, 343, 698, , 702
ESP10, 331, 335, 338, 340, 342, 700, , 704
ESP10, 332, 336, 339, 340, 342, 702, , 706
ESP10, 331, 336, 339, 340, 342, 705, , 709
ESP10, 332, 336, 339, 341, 342, 707, , 711
ESP10, 334, 337, 340, 341, 342, 709, , 713
ESP10, 334, 336, 339, 340, 342, 711, , 715
ESP10, 335, 337, 340, 341, 342, 713, , 717
ESP10, 334, 337, 339, 341, 342, 715, , 719
ESP10, 336, 339, 340, 342, 343, 717, , 721
ESP10, 334, 337, 339, 340, 342, 719, , 723
ESP10, 334, 337, 339, 341, 342, 721, , 725
ESP10, 333, 337, 339, 340, 341, 723, , 727
ESP10, 333, 337, 339, 340, 342, 725, , 729
ESP10, 334, 338, 340, 341, 342, 728, , 732
ESP10, 337, 340, 342, 343, 344, 730, , 734
ESP10, 336, 339, 341, 342, 343, 732, , 736
ESP10, 336, 339, 341, 342, 343, 734, , 738
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|2026-08-15
CIBW1W_SQIN.ESPF10.csv|2026-08-15
CIBW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
COLUMBIA - AT INTL BOUNDARY
(
CIBW1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
42769
53749
94
70485
56951
APR-JUL
35025
44181
91
58787
48307
APR-AUG
39691
50266
94
66517
53664
JAN-SEP
47712
59326
93
76113
63866
JAN-JUL
40171
50182
91
64550
55223
OCT-SEP
53462
66662
93
82344
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|2026-08-15
CIBW1W_SQIN.ESPF10.csv|2026-08-15
CIBW1W_SQIN.ESPFM.csv|2026-08-15
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
