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Archive:
Water Year
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COLUMBIA - AT BIRCHBANK
(
BIRQ2
)
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
41333
41633
98
42152
42578
APR-JUL
35986
35986
103
35986
34960
APR-AUG
39458
39550
100
39636
39736
JAN-SEP
47795
48095
103
48614
46786
JAN-JUL
42448
42448
108
42448
39168
OCT-SEP
53702
54002
103
54521
52397
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
41446
41713
98
42074
42578
APR-JUL
35986
35986
103
35986
34960
APR-AUG
39527
39620
100
39755
39736
JAN-SEP
47909
48175
103
48536
46786
JAN-JUL
42448
42448
108
42448
39168
OCT-SEP
53816
54082
103
54443
52397
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
41374
41719
98
42282
42578
APR-JUL
35986
35986
103
35986
34960
APR-AUG
39434
39559
100
39765
39736
JAN-SEP
47836
48181
103
48744
46786
JAN-JUL
42448
42448
108
42448
39168
OCT-SEP
53743
54088
103
54651
52397
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 224, 294, 348, 397, 441, 70, , 74
ESP10, 220, 290, 343, 391, 435, 72, , 76
ESP10, 227, 294, 347, 395, 444, 74, , 78
ESP10, 229, 292, 348, 393, 442, 76, , 80
ESP10, 228, 289, 346, 390, 440, 78, , 82
ESP10, 226, 288, 349, 387, 445, 81, , 85
ESP10, 229, 290, 352, 389, 454, 83, , 87
ESP10, 229, 289, 354, 388, 455, 85, , 89
ESP10, 232, 291, 357, 391, 458, 87, , 91
ESP10, 230, 288, 355, 389, 457, 89, , 93
ESP10, 234, 290, 358, 392, 459, 91, , 95
ESP10, 228, 284, 351, 386, 454, 93, , 97
ESP10, 219, 276, 343, 381, 450, 95, , 99
ESP10, 225, 280, 346, 385, 453, 97, , 101
ESP10, 226, 282, 346, 383, 455, 99, , 103
ESP10, 216, 270, 339, 374, 447, 102, , 106
ESP10, 209, 264, 332, 367, 441, 104, , 108
ESP10, 227, 277, 346, 386, 456, 106, , 110
ESP10, 228, 283, 351, 388, 457, 108, , 112
ESP10, 231, 293, 353, 390, 456, 110, , 114
ESP10, 222, 288, 345, 383, 449, 112, , 116
ESP10, 215, 283, 338, 381, 442, 114, , 118
ESP10, 213, 280, 338, 380, 440, 116, , 120
ESP10, 219, 292, 344, 389, 447, 118, , 122
ESP10, 224, 295, 347, 396, 454, 120, , 124
ESP10, 229, 303, 358, 402, 461, 122, , 126
ESP10, 227, 302, 362, 401, 459, 125, , 129
ESP10, 230, 299, 360, 399, 458, 127, , 131
ESP10, 225, 291, 351, 389, 448, 129, , 133
ESP10, 225, 285, 340, 378, 438, 131, , 135
ESP10, 227, 291, 344, 385, 440, 133, , 137
ESP10, 231, 294, 348, 386, 442, 135, , 139
ESP10, 227, 290, 345, 383, 440, 137, , 141
ESP10, 235, 304, 352, 388, 451, 139, , 143
ESP10, 241, 307, 353, 389, 452, 141, , 145
ESP10, 241, 306, 348, 389, 448, 143, , 147
ESP10, 239, 308, 345, 387, 449, 145, , 149
ESP10, 230, 299, 340, 380, 440, 148, , 152
ESP10, 243, 308, 354, 387, 450, 150, , 154
ESP10, 242, 308, 354, 388, 447, 152, , 156
ESP10, 239, 303, 349, 383, 442, 154, , 158
ESP10, 234, 298, 344, 379, 438, 156, , 160
ESP10, 246, 314, 359, 390, 449, 158, , 162
ESP10, 254, 317, 361, 390, 452, 160, , 164
ESP10, 243, 314, 350, 379, 441, 162, , 166
ESP10, 252, 321, 358, 386, 448, 164, , 168
ESP10, 244, 313, 351, 380, 441, 166, , 170
ESP10, 250, 316, 356, 384, 447, 169, , 173
ESP10, 242, 315, 350, 379, 443, 171, , 175
ESP10, 244, 319, 352, 385, 445, 173, , 177
ESP10, 250, 322, 354, 388, 451, 175, , 179
ESP10, 247, 320, 349, 383, 446, 177, , 181
ESP10, 244, 320, 346, 383, 443, 179, , 183
ESP10, 252, 332, 353, 389, 450, 181, , 185
ESP10, 248, 332, 352, 387, 446, 183, , 187
ESP10, 243, 328, 353, 382, 443, 185, , 189
ESP10, 242, 325, 352, 379, 447, 187, , 191
ESP10, 244, 323, 352, 383, 448, 189, , 193
ESP10, 245, 321, 354, 383, 448, 192, , 196
ESP10, 246, 316, 344, 375, 440, 194, , 198
ESP10, 234, 308, 337, 373, 430, 196, , 200
ESP10, 239, 308, 339, 373, 430, 198, , 202
ESP10, 237, 305, 336, 369, 429, 200, , 204
ESP10, 228, 293, 318, 355, 418, 202, , 206
ESP10, 227, 292, 319, 356, 420, 204, , 208
ESP10, 224, 288, 318, 352, 416, 206, , 210
ESP10, 231, 295, 326, 358, 423, 208, , 212
ESP10, 216, 286, 315, 344, 411, 210, , 214
ESP10, 181, 255, 281, 311, 382, 212, , 216
ESP10, 173, 247, 273, 310, 380, 215, , 219
ESP10, 174, 248, 275, 311, 383, 217, , 221
ESP10, 183, 259, 290, 323, 398, 219, , 223
ESP10, 184, 263, 292, 323, 403, 221, , 225
ESP10, 173, 252, 281, 311, 394, 223, , 227
ESP10, 174, 250, 275, 306, 390, 225, , 229
ESP10, 176, 251, 273, 312, 391, 227, , 231
ESP10, 178, 250, 276, 312, 392, 229, , 233
ESP10, 186, 245, 273, 312, 388, 231, , 235
ESP10, 173, 231, 259, 298, 373, 233, , 237
ESP10, 174, 223, 252, 292, 366, 236, , 240
ESP10, 186, 229, 260, 298, 373, 238, , 242
ESP10, 187, 222, 259, 291, 366, 240, , 244
ESP10, 193, 230, 270, 300, 375, 242, , 246
ESP10, 199, 240, 278, 307, 380, 244, , 248
ESP10, 193, 235, 272, 303, 375, 246, , 250
ESP10, 189, 230, 266, 300, 370, 248, , 252
ESP10, 191, 233, 270, 304, 371, 250, , 254
ESP10, 196, 232, 271, 303, 381, 252, , 256
ESP10, 192, 231, 270, 297, 380, 254, , 258
ESP10, 194, 234, 276, 298, 381, 256, , 260
ESP10, 197, 240, 277, 298, 380, 259, , 263
ESP10, 194, 236, 275, 294, 377, 261, , 265
ESP10, 191, 234, 272, 293, 376, 263, , 267
ESP10, 194, 238, 276, 297, 383, 265, , 269
ESP10, 191, 231, 273, 293, 375, 267, , 271
ESP10, 202, 232, 272, 300, 375, 269, , 273
ESP10, 200, 232, 269, 299, 372, 271, , 275
ESP10, 197, 227, 266, 296, 368, 273, , 277
ESP10, 197, 227, 264, 294, 365, 275, , 279
ESP10, 191, 225, 259, 288, 358, 277, , 281
ESP10, 189, 222, 260, 285, 353, 279, , 283
ESP10, 189, 222, 261, 287, 353, 282, , 286
ESP10, 187, 220, 259, 286, 348, 284, , 288
ESP10, 188, 223, 258, 286, 345, 286, , 290
ESP10, 186, 222, 257, 289, 342, 288, , 292
ESP10, 186, 222, 255, 288, 341, 290, , 294
ESP10, 187, 223, 255, 288, 340, 292, , 296
ESP10, 188, 224, 256, 295, 340, 294, , 298
ESP10, 189, 232, 256, 296, 343, 296, , 300
ESP10, 196, 238, 262, 301, 349, 298, , 302
ESP10, 207, 242, 267, 304, 352, 300, , 304
ESP10, 212, 243, 272, 306, 357, 303, , 307
ESP10, 211, 242, 278, 305, 362, 305, , 309
ESP10, 215, 246, 282, 309, 365, 307, , 311
ESP10, 214, 251, 283, 308, 365, 309, , 313
ESP10, 205, 244, 276, 300, 357, 311, , 315
ESP10, 206, 246, 280, 305, 360, 313, , 317
ESP10, 209, 247, 284, 308, 362, 315, , 319
ESP10, 211, 253, 285, 308, 362, 317, , 321
ESP10, 209, 254, 286, 309, 360, 319, , 323
ESP10, 208, 251, 284, 308, 357, 321, , 325
ESP10, 204, 239, 272, 297, 346, 323, , 327
ESP10, 195, 229, 262, 291, 337, 326, , 330
ESP10, 203, 237, 266, 299, 343, 328, , 332
ESP10, 206, 236, 266, 299, 342, 330, , 334
ESP10, 207, 235, 268, 299, 339, 332, , 336
ESP10, 202, 234, 265, 295, 336, 334, , 338
ESP10, 214, 242, 274, 302, 345, 336, , 340
ESP10, 219, 246, 274, 300, 343, 338, , 342
ESP10, 213, 242, 270, 293, 338, 340, , 344
ESP10, 219, 245, 272, 295, 342, 342, , 346
ESP10, 222, 247, 272, 296, 344, 344, , 348
ESP10, 218, 243, 267, 293, 339, 346, , 350
ESP10, 221, 248, 270, 299, 343, 349, , 353
ESP10, 220, 248, 270, 300, 342, 351, , 355
ESP10, 209, 234, 255, 286, 328, 353, , 357
ESP10, 209, 235, 259, 287, 327, 355, , 359
ESP10, 215, 243, 265, 292, 332, 357, , 361
ESP10, 206, 234, 257, 283, 322, 359, , 363
ESP10, 212, 244, 265, 290, 331, 361, , 365
ESP10, 204, 237, 257, 283, 324, 363, , 367
ESP10, 209, 245, 265, 287, 329, 365, , 369
ESP10, 205, 244, 262, 288, 324, 367, , 371
ESP10, 214, 251, 269, 295, 331, 370, , 374
ESP10, 217, 251, 268, 294, 328, 372, , 376
ESP10, 220, 253, 268, 295, 329, 374, , 378
ESP10, 220, 252, 266, 295, 327, 376, , 380
ESP10, 215, 246, 259, 288, 320, 378, , 382
ESP10, 212, 240, 256, 283, 313, 380, , 384
ESP10, 204, 230, 247, 272, 301, 382, , 386
ESP10, 200, 231, 244, 268, 297, 384, , 388
ESP10, 194, 228, 240, 263, 293, 386, , 390
ESP10, 185, 219, 232, 254, 284, 388, , 392
ESP10, 188, 219, 234, 253, 284, 390, , 394
ESP10, 182, 217, 231, 249, 283, 393, , 397
ESP10, 187, 220, 229, 248, 284, 395, , 399
ESP10, 180, 210, 221, 236, 273, 397, , 401
ESP10, 186, 212, 222, 239, 274, 399, , 403
ESP10, 179, 200, 209, 227, 261, 401, , 405
ESP10, 188, 208, 218, 236, 270, 403, , 407
ESP10, 189, 206, 217, 236, 266, 405, , 409
ESP10, 185, 200, 213, 230, 261, 407, , 411
ESP10, 179, 190, 203, 219, 250, 409, , 413
ESP10, 191, 198, 212, 226, 257, 411, , 415
ESP10, 184, 191, 206, 221, 250, 413, , 417
ESP10, 182, 189, 202, 218, 247, 416, , 420
ESP10, 180, 187, 199, 214, 243, 418, , 422
ESP10, 183, 191, 201, 215, 243, 420, , 424
ESP10, 177, 188, 196, 209, 241, 422, , 426
ESP10, 175, 187, 197, 210, 239, 424, , 428
ESP10, 171, 186, 196, 208, 236, 426, , 430
ESP10, 177, 193, 204, 215, 242, 428, , 432
ESP10, 178, 192, 202, 217, 240, 430, , 434
ESP10, 174, 186, 198, 213, 234, 432, , 436
ESP10, 170, 180, 194, 212, 231, 434, , 438
ESP10, 173, 183, 198, 217, 236, 437, , 441
ESP10, 177, 190, 203, 222, 243, 439, , 443
ESP10, 178, 194, 206, 225, 245, 441, , 445
ESP10, 186, 199, 213, 233, 252, 443, , 447
ESP10, 192, 204, 218, 239, 256, 445, , 449
ESP10, 202, 213, 225, 248, 267, 447, , 451
ESP10, 203, 215, 226, 249, 267, 449, , 453
ESP10, 201, 213, 228, 247, 265, 451, , 455
ESP10, 205, 217, 232, 251, 268, 453, , 457
ESP10, 205, 214, 234, 251, 268, 455, , 459
ESP10, 203, 213, 235, 250, 266, 457, , 461
ESP10, 198, 212, 231, 247, 261, 460, , 464
ESP10, 201, 216, 235, 252, 265, 462, , 466
ESP10, 200, 215, 233, 252, 266, 464, , 468
ESP10, 196, 208, 229, 247, 262, 466, , 470
ESP10, 194, 206, 226, 244, 260, 468, , 472
ESP10, 190, 203, 225, 241, 258, 470, , 474
ESP10, 197, 213, 231, 249, 264, 472, , 476
ESP10, 200, 214, 232, 250, 266, 474, , 478
ESP10, 198, 213, 229, 246, 263, 476, , 480
ESP10, 205, 217, 233, 251, 271, 478, , 482
ESP10, 207, 218, 234, 252, 273, 480, , 484
ESP10, 204, 215, 233, 253, 271, 483, , 487
ESP10, 202, 212, 228, 248, 265, 485, , 489
ESP10, 202, 214, 231, 248, 265, 487, , 491
ESP10, 206, 220, 236, 252, 269, 489, , 493
ESP10, 207, 223, 238, 255, 272, 491, , 495
ESP10, 208, 223, 243, 256, 273, 493, , 497
ESP10, 218, 235, 252, 265, 281, 495, , 499
ESP10, 220, 237, 251, 265, 283, 497, , 501
ESP10, 222, 238, 252, 268, 282, 499, , 503
ESP10, 221, 236, 250, 268, 282, 501, , 505
ESP10, 219, 234, 248, 265, 279, 504, , 508
ESP10, 223, 240, 252, 269, 284, 506, , 510
ESP10, 222, 238, 253, 269, 281, 508, , 512
ESP10, 222, 239, 253, 274, 282, 510, , 514
ESP10, 226, 243, 259, 279, 286, 512, , 516
ESP10, 229, 246, 260, 281, 291, 514, , 518
ESP10, 230, 247, 261, 281, 293, 516, , 520
ESP10, 229, 245, 265, 279, 291, 518, , 522
ESP10, 230, 244, 263, 278, 289, 520, , 524
ESP10, 235, 245, 264, 281, 291, 522, , 526
ESP10, 235, 248, 265, 280, 291, 524, , 528
ESP10, 232, 247, 264, 281, 291, 527, , 531
ESP10, 231, 246, 263, 281, 290, 529, , 533
ESP10, 231, 244, 263, 279, 289, 531, , 535
ESP10, 227, 242, 264, 277, 287, 533, , 537
ESP10, 226, 239, 262, 273, 283, 535, , 539
ESP10, 224, 237, 261, 270, 282, 537, , 541
ESP10, 226, 238, 262, 272, 282, 539, , 543
ESP10, 229, 237, 263, 273, 282, 541, , 545
ESP10, 229, 237, 261, 274, 280, 543, , 547
ESP10, 231, 242, 267, 277, 284, 545, , 549
ESP10, 233, 245, 269, 278, 287, 547, , 551
ESP10, 238, 252, 272, 285, 293, 550, , 554
ESP10, 232, 246, 268, 280, 288, 552, , 556
ESP10, 231, 246, 265, 276, 284, 554, , 558
ESP10, 233, 250, 265, 276, 285, 556, , 560
ESP10, 230, 248, 262, 274, 282, 558, , 562
ESP10, 233, 250, 264, 276, 284, 560, , 564
ESP10, 226, 241, 254, 267, 277, 562, , 566
ESP10, 229, 242, 253, 269, 276, 564, , 568
ESP10, 228, 241, 252, 266, 275, 566, , 570
ESP10, 239, 247, 258, 272, 283, 568, , 572
ESP10, 232, 240, 254, 266, 276, 571, , 575
ESP10, 234, 242, 253, 265, 276, 573, , 577
ESP10, 233, 241, 253, 265, 277, 575, , 579
ESP10, 234, 244, 254, 268, 279, 577, , 581
ESP10, 233, 244, 254, 271, 279, 579, , 583
ESP10, 232, 244, 253, 271, 278, 581, , 585
ESP10, 238, 247, 262, 275, 283, 583, , 587
ESP10, 244, 254, 268, 281, 288, 585, , 589
ESP10, 245, 257, 269, 282, 291, 587, , 591
ESP10, 242, 254, 265, 280, 288, 589, , 593
ESP10, 239, 252, 266, 278, 286, 591, , 595
ESP10, 251, 266, 279, 291, 298, 594, , 598
ESP10, 252, 267, 280, 293, 299, 596, , 600
ESP10, 265, 275, 286, 299, 307, 598, , 602
ESP10, 262, 271, 285, 296, 304, 600, , 604
ESP10, 262, 271, 284, 295, 302, 602, , 606
ESP10, 263, 273, 286, 297, 303, 604, , 608
ESP10, 264, 276, 289, 298, 304, 606, , 610
ESP10, 261, 273, 286, 295, 301, 608, , 612
ESP10, 261, 274, 287, 295, 301, 610, , 614
ESP10, 266, 279, 293, 300, 305, 612, , 616
ESP10, 267, 282, 295, 303, 307, 614, , 618
ESP10, 265, 281, 294, 300, 306, 617, , 621
ESP10, 267, 283, 295, 302, 308, 619, , 623
ESP10, 262, 277, 291, 298, 306, 621, , 625
ESP10, 280, 292, 304, 312, 320, 623, , 627
ESP10, 279, 290, 302, 311, 318, 625, , 629
ESP10, 280, 293, 304, 312, 321, 627, , 631
ESP10, 274, 287, 300, 306, 315, 629, , 633
ESP10, 277, 290, 303, 307, 316, 631, , 635
ESP10, 277, 291, 303, 307, 316, 633, , 637
ESP10, 280, 294, 306, 311, 319, 635, , 639
ESP10, 285, 296, 308, 314, 320, 638, , 642
ESP10, 284, 292, 305, 311, 316, 640, , 644
ESP10, 287, 293, 306, 312, 316, 642, , 646
ESP10, 285, 292, 305, 312, 315, 644, , 648
ESP10, 291, 298, 311, 318, 321, 646, , 650
ESP10, 302, 307, 318, 323, 326, 648, , 652
ESP10, 304, 307, 317, 322, 325, 650, , 654
ESP10, 304, 309, 318, 322, 325, 652, , 656
ESP10, 304, 310, 318, 323, 325, 654, , 658
ESP10, 304, 311, 317, 323, 324, 656, , 660
ESP10, 305, 312, 318, 323, 325, 658, , 662
ESP10, 304, 311, 317, 322, 324, 661, , 665
ESP10, 302, 309, 315, 320, 322, 663, , 667
ESP10, 300, 309, 314, 319, 321, 665, , 669
ESP10, 303, 312, 317, 321, 324, 667, , 671
ESP10, 302, 312, 317, 320, 323, 669, , 673
ESP10, 303, 312, 317, 319, 323, 671, , 675
ESP10, 304, 312, 317, 320, 323, 673, , 677
ESP10, 304, 313, 317, 320, 324, 675, , 679
ESP10, 304, 312, 317, 320, 324, 677, , 681
ESP10, 304, 312, 317, 320, 324, 679, , 683
ESP10, 304, 312, 317, 320, 323, 681, , 685
ESP10, 303, 311, 317, 319, 323, 684, , 688
ESP10, 305, 311, 317, 319, 322, 686, , 690
ESP10, 307, 312, 317, 320, 323, 688, , 692
ESP10, 307, 312, 318, 320, 323, 690, , 694
ESP10, 307, 313, 318, 320, 323, 692, , 696
ESP10, 308, 313, 317, 320, 323, 694, , 698
ESP10, 309, 316, 320, 322, 325, 696, , 700
ESP10, 308, 316, 319, 321, 324, 698, , 702
ESP10, 308, 315, 318, 320, 323, 700, , 704
ESP10, 309, 316, 318, 321, 323, 702, , 706
ESP10, 308, 315, 318, 320, 323, 705, , 709
ESP10, 310, 315, 318, 320, 322, 707, , 711
ESP10, 312, 315, 318, 320, 322, 709, , 713
ESP10, 311, 315, 318, 320, 322, 711, , 715
ESP10, 312, 316, 319, 320, 323, 713, , 717
ESP10, 311, 316, 319, 320, 323, 715, , 719
ESP10, 313, 317, 319, 321, 323, 717, , 721
ESP10, 311, 315, 318, 320, 322, 719, , 723
ESP10, 310, 315, 317, 319, 321, 721, , 725
ESP10, 310, 315, 318, 320, 321, 723, , 727
ESP10, 310, 316, 318, 320, 322, 725, , 729
ESP10, 311, 316, 319, 320, 322, 728, , 732
ESP10, 315, 319, 321, 323, 325, 730, , 734
ESP10, 314, 318, 320, 321, 324, 732, , 736
ESP10, 313, 317, 319, 320, 323, 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/BIRQ2W_SQIN.ESPF10.csv
BIRQ2W_SQIN.ESPF0.csv|2026-08-15
BIRQ2W_SQIN.ESPF10.csv|2026-08-15
BIRQ2W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
COLUMBIA - AT BIRCHBANK
(
BIRQ2
)
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
31563
39313
92
51230
42578
APR-JUL
25116
32362
93
41641
34960
APR-AUG
29011
36666
92
47683
39736
JAN-SEP
34415
42963
92
54664
46786
JAN-JUL
28170
35997
92
45107
39168
OCT-SEP
37902
48326
92
59340
52397
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/BIRQ2W_SQIN.ESPF10.csv
BIRQ2W_SQIN.ESPF0.csv|2026-08-15
BIRQ2W_SQIN.ESPF10.csv|2026-08-15
BIRQ2W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
Commerce Home
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#FFF68F
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#66CCFF
ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
