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Archive:
Water Year
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COLUMBIA - WELLS DAM
(
WELW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-06-24
Issued:
2026-06-24
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
59187
60675
93
62702
65328
APR-JUL
49065
49493
90
50002
55110
JAN-SEP
72098
73586
99
75613
74438
JAN-JUL
61976
62404
97
62913
64220
OCT-SEP
82602
84089
100
86117
83937
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-06-24
Issued:
2026-06-24
Hide Forecast
APR-SEP
59410
61298
94
63012
65328
APR-JUL
49129
49895
91
50903
55110
JAN-SEP
72320
74209
100
75923
74438
JAN-JUL
62040
62806
98
63814
64220
OCT-SEP
82824
84713
101
86427
83937
Reference
ESP with 0 Days QPF
Ensemble:
2026-06-24
Issued:
2026-06-24
Hide Forecast
APR-SEP
59286
60799
93
62691
65328
APR-JUL
49019
49635
90
50611
55110
JAN-SEP
72197
73710
99
75602
74438
JAN-JUL
61930
62546
97
63522
64220
OCT-SEP
82700
84214
100
86106
83937
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 229, 298, 352, 406, 435, 71, , 75
ESP10, 224, 295, 347, 402, 430, 73, , 77
ESP10, 227, 299, 352, 404, 435, 76, , 80
ESP10, 226, 301, 353, 402, 434, 78, , 82
ESP10, 226, 302, 353, 399, 431, 81, , 85
ESP10, 224, 300, 352, 398, 433, 83, , 87
ESP10, 229, 304, 353, 400, 438, 86, , 90
ESP10, 233, 307, 358, 401, 439, 88, , 92
ESP10, 234, 308, 359, 402, 440, 91, , 95
ESP10, 233, 310, 357, 401, 439, 93, , 97
ESP10, 233, 312, 359, 402, 440, 96, , 100
ESP10, 232, 312, 359, 403, 439, 98, , 102
ESP10, 226, 306, 352, 398, 435, 101, , 105
ESP10, 228, 309, 355, 402, 437, 103, , 107
ESP10, 228, 306, 353, 400, 437, 106, , 110
ESP10, 215, 295, 339, 387, 428, 108, , 112
ESP10, 205, 285, 329, 379, 417, 111, , 115
ESP10, 216, 295, 343, 389, 429, 113, , 117
ESP10, 216, 296, 348, 392, 431, 116, , 120
ESP10, 215, 296, 349, 395, 434, 118, , 122
ESP10, 205, 288, 342, 385, 425, 121, , 125
ESP10, 206, 287, 341, 393, 424, 123, , 127
ESP10, 199, 288, 335, 388, 424, 126, , 130
ESP10, 207, 298, 347, 394, 432, 128, , 132
ESP10, 212, 302, 351, 400, 435, 131, , 135
ESP10, 216, 314, 355, 406, 439, 133, , 137
ESP10, 219, 315, 356, 405, 440, 136, , 140
ESP10, 219, 314, 356, 406, 440, 138, , 142
ESP10, 209, 303, 347, 397, 432, 141, , 145
ESP10, 194, 289, 333, 384, 421, 143, , 147
ESP10, 193, 288, 337, 385, 425, 146, , 150
ESP10, 198, 292, 341, 389, 432, 148, , 152
ESP10, 195, 290, 340, 388, 431, 151, , 155
ESP10, 206, 302, 348, 397, 440, 153, , 157
ESP10, 215, 306, 350, 398, 441, 156, , 160
ESP10, 215, 306, 350, 398, 440, 158, , 162
ESP10, 217, 305, 350, 396, 440, 161, , 165
ESP10, 214, 295, 347, 388, 433, 163, , 167
ESP10, 221, 301, 353, 393, 440, 166, , 170
ESP10, 217, 302, 355, 391, 440, 168, , 172
ESP10, 221, 304, 355, 391, 441, 171, , 175
ESP10, 225, 304, 353, 395, 439, 173, , 177
ESP10, 235, 311, 362, 401, 445, 176, , 180
ESP10, 248, 317, 366, 402, 450, 178, , 182
ESP10, 241, 312, 358, 396, 441, 181, , 185
ESP10, 250, 316, 364, 400, 445, 183, , 187
ESP10, 242, 306, 356, 395, 440, 186, , 190
ESP10, 250, 312, 365, 399, 450, 188, , 192
ESP10, 245, 306, 361, 398, 446, 191, , 195
ESP10, 248, 309, 366, 399, 450, 193, , 197
ESP10, 251, 312, 365, 398, 449, 196, , 200
ESP10, 251, 318, 361, 397, 445, 198, , 202
ESP10, 248, 319, 360, 395, 441, 201, , 205
ESP10, 257, 327, 369, 406, 448, 203, , 207
ESP10, 253, 323, 364, 405, 444, 206, , 210
ESP10, 256, 320, 361, 405, 445, 208, , 212
ESP10, 254, 315, 356, 400, 440, 211, , 215
ESP10, 254, 313, 355, 402, 439, 213, , 217
ESP10, 255, 315, 362, 408, 440, 216, , 220
ESP10, 246, 303, 353, 398, 429, 218, , 222
ESP10, 235, 294, 343, 389, 419, 221, , 225
ESP10, 238, 295, 344, 392, 423, 223, , 227
ESP10, 232, 286, 338, 384, 415, 226, , 230
ESP10, 218, 263, 320, 366, 403, 228, , 232
ESP10, 219, 267, 325, 366, 408, 231, , 235
ESP10, 214, 264, 319, 360, 405, 233, , 237
ESP10, 224, 274, 329, 370, 418, 236, , 240
ESP10, 208, 260, 314, 356, 404, 238, , 242
ESP10, 180, 232, 285, 328, 377, 241, , 245
ESP10, 171, 227, 278, 318, 368, 243, , 247
ESP10, 171, 234, 280, 317, 371, 246, , 250
ESP10, 177, 246, 286, 324, 379, 248, , 252
ESP10, 178, 247, 291, 326, 381, 251, , 255
ESP10, 172, 238, 284, 320, 375, 253, , 257
ESP10, 177, 236, 290, 319, 373, 256, , 260
ESP10, 185, 236, 294, 320, 375, 258, , 262
ESP10, 186, 236, 298, 320, 378, 261, , 265
ESP10, 184, 232, 296, 317, 375, 263, , 267
ESP10, 181, 229, 289, 313, 369, 266, , 270
ESP10, 186, 230, 281, 309, 362, 268, , 272
ESP10, 198, 238, 287, 315, 367, 271, , 275
ESP10, 203, 237, 286, 314, 367, 273, , 277
ESP10, 215, 250, 298, 326, 378, 276, , 280
ESP10, 220, 254, 300, 330, 382, 278, , 282
ESP10, 215, 246, 296, 327, 377, 281, , 285
ESP10, 212, 241, 292, 328, 376, 283, , 287
ESP10, 214, 244, 294, 328, 377, 286, , 290
ESP10, 218, 247, 297, 331, 389, 288, , 292
ESP10, 214, 247, 292, 328, 387, 291, , 295
ESP10, 219, 250, 295, 330, 388, 293, , 297
ESP10, 226, 262, 303, 335, 389, 296, , 300
ESP10, 225, 260, 304, 332, 385, 298, , 302
ESP10, 218, 254, 302, 326, 382, 301, , 305
ESP10, 219, 259, 303, 328, 387, 303, , 307
ESP10, 210, 252, 295, 322, 381, 306, , 310
ESP10, 208, 263, 296, 325, 382, 308, , 312
ESP10, 210, 263, 299, 327, 383, 311, , 315
ESP10, 209, 261, 296, 329, 381, 313, , 317
ESP10, 211, 261, 296, 329, 379, 316, , 320
ESP10, 214, 261, 291, 329, 375, 318, , 322
ESP10, 212, 258, 290, 331, 372, 321, , 325
ESP10, 213, 257, 292, 331, 372, 323, , 327
ESP10, 213, 255, 290, 330, 369, 326, , 330
ESP10, 210, 255, 290, 326, 366, 328, , 332
ESP10, 215, 257, 290, 325, 365, 331, , 335
ESP10, 215, 260, 293, 324, 364, 333, , 337
ESP10, 216, 263, 292, 322, 363, 336, , 340
ESP10, 217, 265, 293, 326, 364, 338, , 342
ESP10, 218, 268, 294, 325, 363, 341, , 345
ESP10, 229, 276, 301, 334, 370, 343, , 347
ESP10, 235, 281, 304, 338, 371, 346, , 350
ESP10, 240, 288, 311, 343, 377, 348, , 352
ESP10, 240, 290, 312, 344, 377, 351, , 355
ESP10, 244, 294, 318, 348, 381, 353, , 357
ESP10, 244, 295, 319, 349, 380, 356, , 360
ESP10, 240, 289, 316, 344, 374, 358, , 362
ESP10, 244, 296, 319, 349, 378, 361, , 365
ESP10, 245, 298, 319, 352, 379, 363, , 367
ESP10, 251, 300, 319, 352, 380, 366, , 370
ESP10, 250, 301, 319, 352, 382, 368, , 372
ESP10, 249, 301, 320, 351, 382, 371, , 375
ESP10, 240, 295, 312, 341, 376, 373, , 377
ESP10, 233, 288, 305, 333, 370, 376, , 380
ESP10, 243, 289, 308, 335, 374, 378, , 382
ESP10, 247, 291, 311, 336, 376, 381, , 385
ESP10, 245, 289, 311, 334, 375, 383, , 387
ESP10, 245, 283, 305, 331, 370, 386, , 390
ESP10, 253, 293, 313, 337, 377, 388, , 392
ESP10, 254, 291, 310, 336, 373, 391, , 395
ESP10, 252, 290, 311, 340, 370, 393, , 397
ESP10, 255, 294, 316, 342, 370, 396, , 400
ESP10, 259, 298, 320, 342, 370, 398, , 402
ESP10, 253, 293, 315, 334, 363, 401, , 405
ESP10, 257, 297, 317, 336, 366, 403, , 407
ESP10, 253, 297, 315, 337, 362, 406, , 410
ESP10, 240, 284, 302, 328, 348, 408, , 412
ESP10, 242, 285, 301, 329, 350, 411, , 415
ESP10, 249, 290, 308, 334, 356, 413, , 417
ESP10, 238, 278, 299, 323, 344, 416, , 420
ESP10, 250, 287, 311, 331, 354, 418, , 422
ESP10, 245, 281, 304, 325, 347, 421, , 425
ESP10, 255, 290, 310, 331, 355, 423, , 427
ESP10, 254, 286, 307, 329, 353, 426, , 430
ESP10, 264, 292, 313, 336, 360, 428, , 432
ESP10, 269, 293, 313, 340, 362, 431, , 435
ESP10, 272, 295, 317, 341, 364, 433, , 437
ESP10, 271, 296, 318, 340, 364, 436, , 440
ESP10, 266, 293, 312, 334, 358, 438, , 442
ESP10, 261, 290, 310, 328, 353, 441, , 445
ESP10, 256, 282, 302, 318, 343, 443, , 447
ESP10, 259, 283, 303, 320, 342, 446, , 450
ESP10, 258, 280, 300, 317, 338, 448, , 452
ESP10, 251, 273, 293, 309, 330, 451, , 455
ESP10, 247, 267, 293, 304, 326, 453, , 457
ESP10, 241, 264, 287, 298, 321, 456, , 460
ESP10, 240, 266, 283, 300, 317, 458, , 462
ESP10, 230, 255, 270, 289, 306, 461, , 465
ESP10, 232, 258, 270, 291, 309, 463, , 467
ESP10, 215, 243, 257, 276, 295, 466, , 470
ESP10, 231, 257, 269, 289, 308, 468, , 472
ESP10, 230, 258, 272, 291, 308, 471, , 475
ESP10, 225, 255, 266, 286, 304, 473, , 477
ESP10, 223, 249, 258, 280, 296, 476, , 480
ESP10, 229, 256, 264, 287, 303, 478, , 482
ESP10, 226, 251, 261, 282, 301, 481, , 485
ESP10, 221, 245, 258, 276, 299, 483, , 487
ESP10, 217, 240, 252, 270, 295, 486, , 490
ESP10, 219, 242, 256, 272, 297, 488, , 492
ESP10, 217, 239, 255, 273, 295, 491, , 495
ESP10, 221, 240, 255, 274, 298, 493, , 497
ESP10, 222, 238, 254, 271, 294, 496, , 500
ESP10, 229, 241, 257, 273, 298, 498, , 502
ESP10, 228, 241, 257, 271, 295, 501, , 505
ESP10, 218, 235, 248, 265, 286, 503, , 507
ESP10, 215, 232, 247, 263, 283, 506, , 510
ESP10, 218, 237, 253, 269, 289, 508, , 512
ESP10, 217, 238, 253, 269, 289, 511, , 515
ESP10, 219, 242, 258, 274, 292, 513, , 517
ESP10, 221, 247, 262, 280, 296, 516, , 520
ESP10, 226, 251, 267, 284, 300, 518, , 522
ESP10, 234, 258, 273, 293, 306, 521, , 525
ESP10, 236, 260, 274, 293, 307, 523, , 527
ESP10, 235, 261, 273, 291, 306, 526, , 530
ESP10, 239, 267, 280, 294, 312, 528, , 532
ESP10, 237, 266, 283, 297, 312, 531, , 535
ESP10, 234, 263, 280, 296, 312, 533, , 537
ESP10, 233, 264, 281, 296, 310, 536, , 540
ESP10, 235, 269, 285, 299, 314, 538, , 542
ESP10, 234, 267, 282, 298, 313, 541, , 545
ESP10, 231, 262, 275, 293, 305, 543, , 547
ESP10, 227, 259, 272, 289, 301, 546, , 550
ESP10, 226, 258, 274, 289, 300, 548, , 552
ESP10, 230, 263, 278, 295, 306, 551, , 555
ESP10, 235, 266, 281, 297, 308, 553, , 557
ESP10, 233, 268, 278, 295, 304, 556, , 560
ESP10, 241, 276, 283, 301, 311, 558, , 562
ESP10, 243, 273, 281, 299, 309, 561, , 565
ESP10, 246, 276, 284, 302, 311, 563, , 567
ESP10, 242, 269, 282, 298, 307, 566, , 570
ESP10, 244, 271, 284, 301, 309, 568, , 572
ESP10, 246, 274, 288, 304, 312, 571, , 575
ESP10, 248, 275, 290, 307, 314, 573, , 577
ESP10, 250, 277, 292, 310, 316, 576, , 580
ESP10, 260, 286, 302, 318, 327, 578, , 582
ESP10, 260, 284, 301, 317, 327, 581, , 585
ESP10, 262, 286, 302, 318, 328, 583, , 587
ESP10, 261, 289, 301, 317, 329, 586, , 590
ESP10, 260, 288, 300, 314, 327, 588, , 592
ESP10, 262, 293, 304, 316, 329, 591, , 595
ESP10, 260, 293, 304, 315, 328, 593, , 597
ESP10, 261, 293, 304, 316, 328, 596, , 600
ESP10, 267, 297, 309, 322, 333, 598, , 602
ESP10, 270, 301, 313, 325, 337, 601, , 605
ESP10, 273, 302, 315, 328, 337, 603, , 607
ESP10, 273, 300, 314, 328, 335, 606, , 610
ESP10, 276, 299, 314, 327, 333, 608, , 612
ESP10, 279, 300, 317, 329, 334, 611, , 615
ESP10, 279, 299, 317, 329, 334, 613, , 617
ESP10, 278, 297, 315, 328, 336, 616, , 620
ESP10, 280, 299, 316, 328, 336, 618, , 622
ESP10, 281, 300, 316, 329, 335, 621, , 625
ESP10, 281, 299, 314, 327, 333, 623, , 627
ESP10, 283, 299, 313, 324, 330, 626, , 630
ESP10, 282, 300, 313, 325, 332, 628, , 632
ESP10, 280, 296, 312, 324, 329, 631, , 635
ESP10, 283, 296, 314, 324, 332, 633, , 637
ESP10, 285, 294, 315, 323, 331, 636, , 640
ESP10, 286, 297, 317, 325, 332, 638, , 642
ESP10, 289, 301, 318, 327, 335, 641, , 645
ESP10, 294, 305, 322, 332, 340, 643, , 647
ESP10, 288, 301, 319, 327, 336, 646, , 650
ESP10, 286, 299, 315, 325, 332, 648, , 652
ESP10, 290, 305, 316, 323, 331, 651, , 655
ESP10, 286, 303, 313, 321, 327, 653, , 657
ESP10, 288, 303, 313, 322, 329, 656, , 660
ESP10, 283, 298, 311, 318, 325, 658, , 662
ESP10, 284, 298, 310, 317, 324, 661, , 665
ESP10, 287, 300, 309, 318, 324, 663, , 667
ESP10, 290, 301, 313, 320, 328, 666, , 670
ESP10, 283, 294, 306, 314, 321, 668, , 672
ESP10, 287, 296, 309, 317, 323, 671, , 675
ESP10, 287, 294, 308, 316, 323, 673, , 677
ESP10, 287, 295, 308, 316, 324, 676, , 680
ESP10, 289, 297, 310, 319, 325, 678, , 682
ESP10, 289, 297, 307, 319, 325, 681, , 685
ESP10, 290, 300, 310, 318, 325, 683, , 687
ESP10, 296, 306, 314, 324, 330, 686, , 690
ESP10, 300, 310, 317, 327, 333, 688, , 692
ESP10, 300, 311, 318, 327, 335, 691, , 695
ESP10, 299, 311, 319, 327, 333, 693, , 697
ESP10, 306, 319, 327, 334, 341, 696, , 700
ESP10, 307, 320, 329, 336, 341, 698, , 702
ESP10, 315, 325, 335, 342, 347, 701, , 705
ESP10, 317, 323, 332, 340, 345, 703, , 707
ESP10, 319, 324, 332, 340, 344, 706, , 710
ESP10, 321, 327, 335, 342, 345, 708, , 712
ESP10, 322, 328, 336, 343, 347, 711, , 715
ESP10, 320, 326, 333, 341, 346, 713, , 717
ESP10, 320, 326, 335, 341, 346, 716, , 720
ESP10, 322, 330, 338, 344, 348, 718, , 722
ESP10, 323, 333, 339, 346, 349, 721, , 725
ESP10, 322, 332, 338, 345, 349, 723, , 727
ESP10, 323, 334, 340, 346, 350, 726, , 730
ESP10, 319, 329, 337, 342, 349, 728, , 732
ESP10, 330, 338, 346, 349, 357, 731, , 735
ESP10, 330, 339, 345, 350, 355, 733, , 737
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ESP10
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Data Files
/chpsesp/ensemble/natural/WELW1N_SQIN.ESPF10.csv
WELW1N_SQIN.ESPF0.csv|2026-06-24
WELW1N_SQIN.ESPF10.csv|2026-06-24
WELW1N_SQIN.ESPFM.csv|2026-06-24
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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