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Archive:
Water Year
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COLUMBIA - WELLS DAM
(
WELW1
)
Forecasts for Water Year
2025
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
49266
49797
76
50808
65328
APR-JUL
41271
41308
75
41360
55110
JAN-SEP
56407
56938
76
57948
74438
JAN-JUL
48412
48449
75
48501
64220
OCT-SEP
65450
65981
79
66991
83937
Experimental
HEFS with 15 days EQPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
APR-SEP
49540
50024
77
51289
65328
APR-JUL
41261
41424
75
41711
55110
JAN-SEP
56681
57165
77
58430
74438
JAN-JUL
48402
48565
76
48852
64220
OCT-SEP
65724
66208
79
67473
83937
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
APR-SEP
49449
49892
76
51071
65328
APR-JUL
41188
41359
75
41654
55110
JAN-SEP
56590
57033
77
58212
74438
JAN-JUL
48329
48500
76
48795
64220
OCT-SEP
65633
66076
79
67255
83937
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 189, 262, 319, 377, 413, 70, , 74
ESP10, 192, 265, 320, 380, 415, 73, , 77
ESP10, 193, 267, 321, 383, 419, 75, , 79
ESP10, 193, 273, 325, 381, 418, 77, , 81
ESP10, 195, 277, 330, 381, 417, 80, , 84
ESP10, 195, 278, 334, 379, 421, 82, , 86
ESP10, 200, 281, 333, 381, 425, 84, , 88
ESP10, 202, 283, 335, 382, 425, 87, , 91
ESP10, 195, 276, 327, 375, 418, 89, , 93
ESP10, 194, 277, 324, 372, 417, 91, , 95
ESP10, 191, 276, 320, 370, 414, 94, , 98
ESP10, 188, 275, 318, 368, 412, 96, , 100
ESP10, 194, 281, 324, 374, 420, 98, , 102
ESP10, 197, 283, 327, 378, 423, 101, , 105
ESP10, 197, 281, 325, 378, 421, 103, , 107
ESP10, 189, 274, 318, 373, 418, 105, , 109
ESP10, 186, 270, 313, 369, 414, 108, , 112
ESP10, 178, 264, 310, 362, 408, 110, , 114
ESP10, 175, 260, 315, 364, 408, 113, , 117
ESP10, 171, 256, 315, 364, 409, 115, , 119
ESP10, 172, 258, 315, 365, 409, 117, , 121
ESP10, 182, 268, 322, 381, 416, 120, , 124
ESP10, 176, 268, 317, 378, 415, 122, , 126
ESP10, 180, 275, 327, 382, 420, 124, , 128
ESP10, 183, 277, 327, 385, 421, 127, , 131
ESP10, 186, 286, 334, 388, 425, 129, , 133
ESP10, 194, 298, 339, 394, 431, 131, , 135
ESP10, 201, 303, 343, 400, 437, 134, , 138
ESP10, 198, 299, 342, 397, 435, 136, , 140
ESP10, 194, 295, 338, 394, 434, 138, , 142
ESP10, 177, 279, 330, 378, 425, 141, , 145
ESP10, 175, 274, 327, 373, 425, 143, , 147
ESP10, 175, 276, 329, 373, 427, 145, , 149
ESP10, 168, 272, 322, 364, 421, 148, , 152
ESP10, 166, 265, 312, 357, 411, 150, , 154
ESP10, 165, 263, 308, 356, 409, 152, , 156
ESP10, 173, 266, 310, 360, 414, 155, , 159
ESP10, 165, 253, 306, 351, 404, 157, , 161
ESP10, 163, 250, 303, 350, 403, 159, , 163
ESP10, 172, 263, 318, 359, 414, 162, , 166
ESP10, 191, 280, 333, 373, 428, 164, , 168
ESP10, 196, 282, 333, 382, 430, 166, , 170
ESP10, 188, 271, 325, 370, 420, 169, , 173
ESP10, 202, 276, 330, 371, 424, 171, , 175
ESP10, 164, 244, 291, 334, 387, 173, , 177
ESP10, 157, 232, 283, 323, 379, 176, , 180
ESP10, 165, 237, 291, 336, 389, 178, , 182
ESP10, 181, 250, 307, 347, 405, 180, , 184
ESP10, 186, 256, 313, 355, 410, 183, , 187
ESP10, 195, 264, 323, 361, 419, 185, , 189
ESP10, 192, 264, 316, 355, 413, 187, , 191
ESP10, 200, 278, 320, 363, 417, 190, , 194
ESP10, 207, 289, 333, 371, 422, 192, , 196
ESP10, 204, 286, 329, 372, 418, 195, , 199
ESP10, 199, 281, 321, 369, 411, 197, , 201
ESP10, 209, 283, 322, 372, 417, 199, , 203
ESP10, 203, 275, 315, 364, 409, 202, , 206
ESP10, 206, 276, 315, 369, 411, 204, , 208
ESP10, 209, 277, 322, 379, 414, 206, , 210
ESP10, 221, 284, 335, 384, 420, 209, , 213
ESP10, 222, 285, 336, 392, 421, 211, , 215
ESP10, 220, 280, 333, 387, 418, 213, , 217
ESP10, 223, 278, 333, 385, 417, 216, , 220
ESP10, 219, 268, 328, 377, 416, 218, , 222
ESP10, 224, 273, 339, 382, 424, 220, , 224
ESP10, 228, 279, 342, 384, 430, 223, , 227
ESP10, 220, 271, 334, 377, 427, 225, , 229
ESP10, 229, 281, 345, 384, 435, 227, , 231
ESP10, 227, 278, 341, 380, 432, 230, , 234
ESP10, 226, 284, 336, 373, 427, 232, , 236
ESP10, 242, 306, 353, 388, 442, 234, , 238
ESP10, 242, 313, 354, 389, 444, 237, , 241
ESP10, 236, 307, 349, 386, 439, 239, , 243
ESP10, 228, 296, 341, 378, 430, 241, , 245
ESP10, 217, 277, 334, 363, 415, 244, , 248
ESP10, 215, 268, 328, 355, 407, 246, , 250
ESP10, 218, 269, 332, 357, 414, 248, , 252
ESP10, 224, 273, 336, 362, 417, 251, , 255
ESP10, 227, 277, 336, 365, 417, 253, , 257
ESP10, 228, 273, 324, 355, 406, 255, , 259
ESP10, 224, 265, 314, 346, 396, 258, , 262
ESP10, 237, 270, 322, 352, 403, 260, , 264
ESP10, 234, 269, 318, 347, 400, 262, , 266
ESP10, 247, 281, 329, 359, 410, 265, , 269
ESP10, 241, 273, 324, 355, 404, 267, , 271
ESP10, 250, 281, 332, 369, 414, 269, , 273
ESP10, 244, 276, 324, 361, 410, 272, , 276
ESP10, 247, 279, 326, 362, 421, 274, , 278
ESP10, 246, 280, 325, 364, 421, 276, , 280
ESP10, 255, 287, 332, 369, 425, 279, , 283
ESP10, 259, 295, 339, 372, 424, 281, , 285
ESP10, 251, 288, 332, 364, 414, 284, , 288
ESP10, 255, 293, 341, 368, 420, 286, , 290
ESP10, 260, 302, 346, 374, 427, 288, , 292
ESP10, 258, 316, 350, 379, 429, 293, , 297
ESP10, 260, 316, 353, 380, 431, 295, , 299
ESP10, 263, 317, 354, 385, 433, 298, , 302
ESP10, 269, 319, 355, 387, 434, 300, , 304
ESP10, 278, 323, 357, 392, 436, 302, , 306
ESP10, 281, 324, 359, 397, 437, 305, , 309
ESP10, 283, 325, 362, 401, 440, 307, , 311
ESP10, 284, 325, 363, 402, 438, 309, , 313
ESP10, 283, 330, 366, 400, 436, 312, , 316
ESP10, 287, 332, 368, 401, 439, 314, , 318
ESP10, 291, 339, 371, 402, 439, 316, , 320
ESP10, 299, 347, 374, 405, 444, 319, , 323
ESP10, 299, 348, 375, 407, 444, 321, , 325
ESP10, 302, 353, 377, 409, 446, 323, , 327
ESP10, 309, 358, 381, 415, 450, 326, , 330
ESP10, 312, 361, 381, 416, 449, 328, , 332
ESP10, 315, 365, 387, 420, 450, 330, , 334
ESP10, 312, 364, 385, 417, 448, 333, , 337
ESP10, 309, 361, 385, 415, 445, 335, , 339
ESP10, 310, 362, 389, 417, 446, 337, , 341
ESP10, 314, 365, 392, 420, 447, 340, , 344
ESP10, 309, 362, 387, 416, 443, 342, , 346
ESP10, 304, 360, 382, 413, 438, 344, , 348
ESP10, 312, 364, 385, 415, 445, 347, , 351
ESP10, 312, 365, 384, 415, 448, 349, , 353
ESP10, 312, 368, 386, 416, 450, 351, , 355
ESP10, 318, 373, 391, 419, 457, 354, , 358
ESP10, 317, 374, 391, 418, 457, 356, , 360
ESP10, 321, 371, 390, 415, 456, 358, , 362
ESP10, 324, 371, 391, 413, 457, 361, , 365
ESP10, 322, 370, 390, 412, 456, 363, , 367
ESP10, 327, 370, 391, 413, 456, 366, , 370
ESP10, 327, 372, 389, 413, 455, 368, , 372
ESP10, 320, 361, 380, 405, 445, 370, , 374
ESP10, 328, 372, 391, 418, 451, 373, , 377
ESP10, 329, 373, 393, 417, 448, 375, , 379
ESP10, 337, 377, 398, 420, 451, 377, , 381
ESP10, 344, 383, 406, 423, 455, 380, , 384
ESP10, 344, 384, 405, 422, 454, 382, , 386
ESP10, 344, 388, 405, 426, 453, 384, , 388
ESP10, 331, 376, 393, 414, 440, 387, , 391
ESP10, 324, 370, 386, 407, 434, 389, , 393
ESP10, 320, 365, 383, 402, 431, 391, , 395
ESP10, 324, 368, 388, 405, 434, 394, , 398
ESP10, 326, 367, 391, 408, 434, 396, , 400
ESP10, 329, 368, 392, 409, 437, 398, , 402
ESP10, 331, 369, 389, 408, 435, 401, , 405
ESP10, 326, 362, 384, 403, 431, 403, , 407
ESP10, 322, 353, 375, 400, 424, 405, , 409
ESP10, 333, 359, 381, 408, 432, 408, , 412
ESP10, 340, 368, 390, 416, 440, 410, , 414
ESP10, 344, 374, 394, 419, 442, 412, , 416
ESP10, 345, 375, 396, 418, 442, 415, , 419
ESP10, 342, 374, 395, 414, 439, 417, , 421
ESP10, 343, 371, 390, 407, 433, 419, , 423
ESP10, 342, 368, 388, 403, 429, 422, , 426
ESP10, 346, 370, 389, 406, 430, 424, , 428
ESP10, 346, 372, 389, 405, 429, 426, , 430
ESP10, 352, 376, 401, 409, 435, 429, , 433
ESP10, 343, 373, 393, 403, 427, 431, , 435
ESP10, 338, 367, 385, 401, 420, 433, , 437
ESP10, 328, 357, 373, 390, 411, 436, , 440
ESP10, 334, 363, 377, 395, 416, 438, , 442
ESP10, 338, 366, 380, 397, 418, 440, , 444
ESP10, 336, 366, 377, 396, 415, 443, , 447
ESP10, 331, 363, 375, 393, 410, 445, , 449
ESP10, 322, 355, 366, 385, 403, 448, , 452
ESP10, 323, 350, 361, 383, 398, 450, , 454
ESP10, 317, 343, 352, 378, 393, 452, , 456
ESP10, 313, 339, 350, 374, 393, 455, , 459
ESP10, 311, 336, 348, 372, 392, 457, , 461
ESP10, 310, 333, 345, 368, 390, 459, , 463
ESP10, 305, 328, 342, 363, 385, 462, , 466
ESP10, 308, 332, 348, 366, 389, 464, , 468
ESP10, 313, 335, 351, 368, 394, 466, , 470
ESP10, 306, 324, 341, 356, 384, 469, , 473
ESP10, 306, 319, 336, 350, 379, 471, , 475
ESP10, 301, 317, 333, 345, 374, 473, , 477
ESP10, 285, 303, 318, 331, 358, 476, , 480
ESP10, 284, 301, 319, 330, 358, 478, , 482
ESP10, 282, 300, 319, 333, 356, 480, , 484
ESP10, 290, 312, 330, 345, 367, 483, , 487
ESP10, 290, 315, 333, 350, 369, 485, , 489
ESP10, 294, 322, 338, 355, 374, 487, , 491
ESP10, 300, 327, 344, 361, 379, 490, , 494
ESP10, 303, 330, 346, 364, 380, 492, , 496
ESP10, 299, 325, 339, 358, 375, 494, , 498
ESP10, 302, 330, 343, 361, 380, 497, , 501
ESP10, 293, 323, 337, 353, 373, 499, , 503
ESP10, 287, 320, 337, 350, 370, 501, , 505
ESP10, 287, 319, 337, 354, 372, 504, , 508
ESP10, 291, 324, 341, 360, 376, 506, , 510
ESP10, 291, 329, 344, 361, 378, 508, , 512
ESP10, 290, 326, 342, 359, 376, 511, , 515
ESP10, 293, 327, 342, 360, 375, 513, , 517
ESP10, 294, 329, 342, 360, 374, 515, , 519
ESP10, 296, 333, 345, 363, 377, 518, , 522
ESP10, 294, 330, 344, 361, 375, 520, , 524
ESP10, 293, 326, 340, 357, 371, 522, , 526
ESP10, 295, 331, 340, 359, 371, 525, , 529
ESP10, 303, 339, 346, 367, 380, 527, , 531
ESP10, 308, 339, 347, 366, 380, 530, , 534
ESP10, 310, 340, 348, 370, 381, 532, , 536
ESP10, 306, 333, 347, 365, 375, 534, , 538
ESP10, 308, 334, 349, 366, 376, 537, , 541
ESP10, 308, 335, 350, 367, 376, 539, , 543
ESP10, 308, 335, 350, 369, 377, 541, , 545
ESP10, 313, 340, 356, 374, 382, 544, , 548
ESP10, 317, 345, 362, 379, 389, 546, , 550
ESP10, 320, 347, 364, 380, 393, 548, , 552
ESP10, 321, 349, 365, 385, 395, 551, , 555
ESP10, 317, 349, 362, 380, 393, 553, , 557
ESP10, 316, 347, 361, 378, 391, 555, , 559
ESP10, 315, 349, 362, 377, 392, 558, , 562
ESP10, 320, 355, 368, 383, 396, 560, , 564
ESP10, 319, 352, 368, 382, 394, 562, , 566
ESP10, 321, 355, 369, 384, 395, 565, , 569
ESP10, 315, 350, 363, 378, 389, 567, , 571
ESP10, 317, 350, 366, 380, 389, 569, , 573
ESP10, 316, 348, 363, 377, 386, 572, , 576
ESP10, 318, 345, 361, 375, 384, 574, , 578
ESP10, 313, 338, 355, 371, 375, 576, , 580
ESP10, 314, 339, 356, 372, 379, 579, , 583
ESP10, 324, 347, 365, 379, 391, 581, , 585
ESP10, 319, 342, 359, 374, 386, 583, , 587
ESP10, 329, 352, 369, 382, 392, 586, , 590
ESP10, 330, 351, 367, 382, 389, 588, , 592
ESP10, 335, 354, 367, 382, 390, 590, , 594
ESP10, 338, 359, 375, 387, 396, 593, , 597
ESP10, 336, 355, 373, 385, 392, 595, , 599
ESP10, 343, 359, 379, 388, 399, 597, , 601
ESP10, 345, 356, 378, 388, 397, 600, , 604
ESP10, 343, 355, 375, 383, 394, 602, , 606
ESP10, 342, 355, 375, 384, 392, 604, , 608
ESP10, 344, 359, 378, 385, 394, 607, , 611
ESP10, 346, 362, 381, 389, 399, 609, , 613
ESP10, 350, 365, 383, 392, 401, 611, , 615
ESP10, 353, 370, 381, 389, 399, 614, , 618
ESP10, 357, 376, 388, 395, 405, 616, , 620
ESP10, 354, 372, 383, 394, 400, 619, , 623
ESP10, 354, 370, 383, 391, 400, 621, , 625
ESP10, 350, 364, 376, 385, 394, 623, , 627
ESP10, 352, 366, 377, 388, 393, 626, , 630
ESP10, 352, 366, 377, 388, 392, 628, , 632
ESP10, 357, 371, 382, 392, 396, 630, , 634
ESP10, 366, 377, 388, 398, 402, 633, , 637
ESP10, 369, 379, 391, 399, 406, 635, , 639
ESP10, 369, 379, 392, 399, 406, 637, , 641
ESP10, 369, 379, 391, 400, 405, 640, , 644
ESP10, 368, 377, 387, 397, 401, 642, , 646
ESP10, 376, 385, 396, 402, 409, 644, , 648
ESP10, 373, 383, 392, 401, 406, 647, , 651
ESP10, 371, 381, 390, 400, 404, 649, , 653
ESP10, 374, 381, 389, 399, 404, 651, , 655
ESP10, 380, 389, 397, 405, 409, 654, , 658
ESP10, 379, 387, 395, 398, 402, 677, , 681
ESP10, 380, 389, 397, 400, 404, 679, , 683
ESP10, 380, 390, 396, 400, 404, 682, , 686
ESP10, 384, 395, 401, 404, 407, 684, , 688
ESP10, 387, 397, 404, 407, 411, 686, , 690
ESP10, 390, 399, 404, 408, 411, 689, , 693
ESP10, 393, 402, 407, 411, 414, 691, , 695
ESP10, 394, 403, 407, 411, 413, 693, , 697
ESP10, 394, 402, 408, 410, 413, 696, , 700
ESP10, 397, 406, 411, 413, 415, 698, , 702
ESP10, 397, 406, 410, 413, 415, 701, , 705
ESP10, 398, 406, 410, 413, 415, 703, , 707
ESP10, 403, 408, 412, 416, 417, 705, , 709
ESP10, 402, 407, 412, 415, 416, 708, , 712
ESP10, 405, 409, 414, 416, 417, 710, , 714
ESP10, 403, 407, 412, 414, 415, 712, , 716
ESP10, 405, 409, 413, 415, 417, 715, , 719
ESP10, 405, 409, 413, 415, 416, 717, , 721
ESP10, 405, 408, 411, 414, 416, 719, , 723
ESP10, 406, 408, 411, 414, 416, 722, , 726
ESP10, 405, 408, 411, 414, 415, 724, , 728
ESP10, 406, 409, 413, 415, 416, 726, , 730
ESP10, 404, 409, 412, 414, 415, 729, , 733
ESP10, 401, 406, 409, 411, 413, 731, , 735
ESP10, 402, 408, 410, 413, 415, 733, , 737
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/WELW1N_SQIN.ESPF10.csv
WELW1N_SQIN.ESPF0.csv|2025-07-12
WELW1N_SQIN.ESPF10.csv|2025-07-12
WELW1N_SQIN.ESPFM.csv|2025-07-12
APR-SEP
COLUMBIA - WELLS DAM
(
WELW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
48913
60897
93
79842
65328
APR-JUL
39676
48461
88
62808
55110
JAN-SEP
54610
68292
92
87148
74438
JAN-JUL
45504
56789
88
70636
64220
OCT-SEP
61635
77129
92
96429
83937
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/natural/WELW1N_SQIN.ESPF10.csv
WELW1N_SQIN.ESPF0.csv|2025-07-12
WELW1N_SQIN.ESPF10.csv|2025-07-12
WELW1N_SQIN.ESPFM.csv|2025-07-12
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
