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Archive:
Water Year
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COLUMBIA - CHIEF JOSEPH DAM
(
CHJW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-04-30
Issued:
2026-04-30
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
60935
63983
102
69820
62551
APR-JUL
48822
51598
98
55887
52569
JAN-SEP
73092
76139
107
81976
71305
JAN-JUL
60978
63754
104
68043
61324
OCT-SEP
82986
86033
107
91870
80453
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-04-30
Issued:
2026-04-30
Hide Forecast
APR-SEP
61643
65221
104
70627
62551
APR-JUL
49920
52873
101
57306
52569
JAN-SEP
73800
77377
109
82784
71305
JAN-JUL
62076
65030
106
69462
61324
OCT-SEP
83694
87271
108
92678
80453
Reference
ESP with 0 Days QPF
Ensemble:
2026-04-30
Issued:
2026-04-30
Hide Forecast
APR-SEP
62182
65374
105
70618
62551
APR-JUL
49363
51971
99
57184
52569
JAN-SEP
74339
77530
109
82774
71305
JAN-JUL
61519
64127
105
69341
61324
OCT-SEP
84233
87424
109
92669
80453
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 231, 296, 352, 406, 433, 71, , 75
ESP10, 226, 293, 347, 402, 428, 74, , 78
ESP10, 229, 295, 351, 404, 433, 77, , 81
ESP10, 228, 298, 350, 402, 432, 81, , 85
ESP10, 227, 298, 349, 399, 429, 84, , 88
ESP10, 223, 296, 347, 396, 431, 87, , 91
ESP10, 229, 300, 348, 396, 437, 90, , 94
ESP10, 232, 301, 354, 397, 438, 93, , 97
ESP10, 233, 303, 355, 399, 439, 96, , 100
ESP10, 233, 303, 353, 397, 439, 99, , 103
ESP10, 236, 308, 356, 399, 439, 103, , 107
ESP10, 235, 308, 357, 401, 439, 106, , 110
ESP10, 229, 301, 350, 395, 434, 109, , 113
ESP10, 231, 304, 354, 397, 437, 112, , 116
ESP10, 232, 303, 352, 396, 437, 115, , 119
ESP10, 220, 292, 338, 386, 428, 118, , 122
ESP10, 210, 284, 329, 380, 418, 121, , 125
ESP10, 221, 294, 343, 390, 429, 125, , 129
ESP10, 220, 294, 346, 390, 431, 128, , 132
ESP10, 220, 294, 349, 395, 434, 131, , 135
ESP10, 209, 285, 343, 385, 425, 134, , 138
ESP10, 209, 287, 342, 387, 424, 137, , 141
ESP10, 203, 288, 336, 385, 426, 140, , 144
ESP10, 210, 297, 347, 394, 434, 143, , 147
ESP10, 214, 302, 351, 398, 436, 147, , 151
ESP10, 219, 315, 355, 404, 441, 150, , 154
ESP10, 222, 315, 356, 405, 442, 153, , 157
ESP10, 224, 314, 357, 405, 442, 156, , 160
ESP10, 214, 304, 348, 398, 434, 159, , 163
ESP10, 199, 289, 336, 386, 423, 162, , 166
ESP10, 200, 289, 339, 388, 428, 166, , 170
ESP10, 204, 293, 342, 390, 434, 169, , 173
ESP10, 203, 290, 340, 389, 433, 172, , 176
ESP10, 213, 302, 350, 398, 442, 175, , 179
ESP10, 221, 305, 351, 398, 443, 178, , 182
ESP10, 222, 305, 351, 399, 441, 181, , 185
ESP10, 223, 304, 351, 397, 440, 184, , 188
ESP10, 217, 294, 346, 388, 433, 188, , 192
ESP10, 224, 299, 353, 393, 440, 191, , 195
ESP10, 222, 300, 355, 392, 440, 194, , 198
ESP10, 227, 302, 356, 389, 439, 197, , 201
ESP10, 229, 302, 353, 393, 436, 200, , 204
ESP10, 239, 309, 362, 401, 443, 203, , 207
ESP10, 249, 318, 367, 402, 448, 206, , 210
ESP10, 242, 313, 358, 392, 438, 210, , 214
ESP10, 250, 316, 363, 397, 442, 213, , 217
ESP10, 243, 307, 355, 391, 438, 216, , 220
ESP10, 250, 312, 363, 397, 448, 219, , 223
ESP10, 245, 306, 360, 394, 443, 222, , 226
ESP10, 248, 307, 364, 395, 447, 225, , 229
ESP10, 253, 310, 363, 396, 446, 228, , 232
ESP10, 254, 316, 359, 395, 442, 232, , 236
ESP10, 251, 317, 361, 392, 438, 235, , 239
ESP10, 260, 326, 369, 403, 445, 238, , 242
ESP10, 255, 321, 364, 402, 439, 241, , 245
ESP10, 257, 318, 361, 401, 442, 244, , 248
ESP10, 256, 314, 355, 397, 438, 247, , 251
ESP10, 257, 313, 355, 400, 439, 250, , 254
ESP10, 257, 316, 361, 405, 440, 254, , 258
ESP10, 249, 302, 352, 395, 429, 257, , 261
ESP10, 238, 292, 342, 388, 420, 260, , 264
ESP10, 242, 293, 343, 388, 422, 263, , 267
ESP10, 237, 286, 336, 380, 415, 266, , 270
ESP10, 221, 266, 316, 362, 403, 269, , 273
ESP10, 224, 270, 325, 366, 410, 272, , 276
ESP10, 220, 269, 322, 361, 410, 276, , 280
ESP10, 228, 277, 331, 369, 417, 279, , 283
ESP10, 215, 263, 318, 355, 404, 282, , 286
ESP10, 188, 236, 288, 328, 379, 285, , 289
ESP10, 180, 230, 281, 319, 373, 288, , 292
ESP10, 178, 238, 282, 318, 374, 291, , 295
ESP10, 185, 250, 288, 326, 383, 294, , 298
ESP10, 186, 251, 291, 329, 385, 298, , 302
ESP10, 180, 242, 286, 321, 379, 301, , 305
ESP10, 186, 240, 294, 320, 378, 304, , 308
ESP10, 190, 240, 295, 323, 379, 307, , 311
ESP10, 192, 241, 301, 324, 381, 310, , 314
ESP10, 190, 240, 298, 321, 378, 313, , 317
ESP10, 183, 234, 289, 315, 370, 316, , 320
ESP10, 189, 232, 282, 311, 366, 320, , 324
ESP10, 201, 240, 288, 318, 371, 323, , 327
ESP10, 206, 241, 287, 316, 371, 326, , 330
ESP10, 218, 253, 297, 325, 382, 329, , 333
ESP10, 223, 256, 300, 330, 385, 332, , 336
ESP10, 218, 248, 295, 328, 381, 335, , 339
ESP10, 213, 245, 291, 330, 379, 339, , 343
ESP10, 215, 247, 296, 330, 380, 342, , 346
ESP10, 221, 252, 298, 332, 391, 345, , 349
ESP10, 217, 253, 295, 328, 388, 348, , 352
ESP10, 223, 256, 299, 329, 389, 351, , 355
ESP10, 229, 264, 307, 334, 391, 354, , 358
ESP10, 226, 265, 305, 331, 387, 357, , 361
ESP10, 220, 259, 304, 326, 385, 361, , 365
ESP10, 221, 261, 305, 328, 390, 364, , 368
ESP10, 212, 256, 297, 321, 384, 367, , 371
ESP10, 210, 266, 300, 323, 384, 370, , 374
ESP10, 213, 264, 303, 323, 384, 373, , 377
ESP10, 212, 262, 299, 326, 382, 376, , 380
ESP10, 214, 262, 297, 325, 379, 379, , 383
ESP10, 215, 259, 292, 326, 375, 383, , 387
ESP10, 214, 257, 290, 328, 372, 386, , 390
ESP10, 217, 255, 292, 331, 374, 389, , 393
ESP10, 217, 253, 291, 330, 371, 392, , 396
ESP10, 215, 257, 292, 327, 368, 395, , 399
ESP10, 218, 256, 293, 325, 367, 398, , 402
ESP10, 220, 260, 295, 325, 366, 401, , 405
ESP10, 220, 263, 294, 324, 365, 405, , 409
ESP10, 221, 265, 296, 326, 366, 408, , 412
ESP10, 222, 269, 297, 324, 365, 411, , 415
ESP10, 233, 278, 306, 333, 373, 414, , 418
ESP10, 240, 284, 308, 337, 374, 417, , 421
ESP10, 245, 290, 313, 341, 378, 420, , 424
ESP10, 244, 291, 315, 342, 377, 423, , 427
ESP10, 248, 295, 321, 346, 382, 427, , 431
ESP10, 248, 295, 320, 347, 381, 430, , 434
ESP10, 245, 290, 316, 343, 376, 433, , 437
ESP10, 249, 298, 319, 347, 379, 436, , 440
ESP10, 250, 303, 319, 350, 380, 439, , 443
ESP10, 254, 304, 320, 351, 380, 442, , 446
ESP10, 253, 306, 322, 351, 382, 445, , 449
ESP10, 251, 304, 323, 350, 381, 449, , 453
ESP10, 244, 294, 314, 341, 375, 452, , 456
ESP10, 238, 286, 306, 334, 369, 455, , 459
ESP10, 245, 290, 310, 336, 373, 458, , 462
ESP10, 251, 291, 312, 337, 376, 461, , 465
ESP10, 250, 289, 311, 336, 374, 464, , 468
ESP10, 249, 285, 307, 331, 369, 467, , 471
ESP10, 257, 297, 313, 339, 376, 471, , 475
ESP10, 258, 294, 311, 338, 372, 474, , 478
ESP10, 256, 292, 314, 338, 369, 477, , 481
ESP10, 259, 297, 317, 341, 369, 480, , 484
ESP10, 261, 300, 322, 341, 369, 483, , 487
ESP10, 255, 294, 317, 335, 363, 486, , 490
ESP10, 259, 297, 320, 339, 365, 490, , 494
ESP10, 256, 296, 316, 339, 361, 493, , 497
ESP10, 242, 284, 303, 329, 348, 496, , 500
ESP10, 243, 284, 302, 329, 350, 499, , 503
ESP10, 249, 290, 310, 333, 357, 502, , 506
ESP10, 241, 279, 303, 322, 346, 505, , 509
ESP10, 253, 287, 313, 331, 355, 508, , 512
ESP10, 248, 282, 306, 327, 349, 512, , 516
ESP10, 258, 289, 311, 333, 356, 515, , 519
ESP10, 256, 286, 310, 331, 354, 518, , 522
ESP10, 263, 291, 315, 336, 360, 521, , 525
ESP10, 268, 291, 315, 338, 362, 524, , 528
ESP10, 270, 293, 316, 339, 365, 527, , 531
ESP10, 269, 294, 318, 339, 364, 530, , 534
ESP10, 264, 290, 312, 332, 358, 534, , 538
ESP10, 261, 287, 309, 326, 353, 537, , 541
ESP10, 256, 281, 300, 316, 343, 540, , 544
ESP10, 259, 283, 303, 319, 342, 543, , 547
ESP10, 258, 278, 301, 315, 337, 546, , 550
ESP10, 251, 271, 293, 309, 329, 549, , 553
ESP10, 247, 266, 292, 303, 325, 552, , 556
ESP10, 240, 263, 288, 298, 320, 556, , 560
ESP10, 241, 266, 286, 299, 317, 559, , 563
ESP10, 230, 255, 274, 287, 306, 562, , 566
ESP10, 233, 258, 275, 291, 310, 565, , 569
ESP10, 215, 243, 255, 275, 295, 568, , 572
ESP10, 231, 256, 270, 288, 308, 571, , 575
ESP10, 230, 257, 271, 289, 308, 574, , 578
ESP10, 225, 254, 267, 285, 303, 578, , 582
ESP10, 221, 248, 258, 278, 295, 581, , 585
ESP10, 228, 254, 264, 285, 301, 584, , 588
ESP10, 225, 251, 260, 280, 300, 587, , 591
ESP10, 221, 246, 257, 275, 296, 590, , 594
ESP10, 217, 240, 251, 269, 293, 593, , 597
ESP10, 219, 241, 254, 270, 295, 596, , 600
ESP10, 216, 237, 252, 271, 292, 600, , 604
ESP10, 217, 238, 252, 272, 295, 603, , 607
ESP10, 219, 234, 250, 268, 291, 606, , 610
ESP10, 226, 239, 253, 269, 295, 609, , 613
ESP10, 226, 239, 254, 267, 292, 612, , 616
ESP10, 216, 231, 246, 260, 283, 615, , 619
ESP10, 213, 228, 244, 258, 280, 618, , 622
ESP10, 216, 234, 251, 266, 286, 622, , 626
ESP10, 215, 236, 252, 266, 286, 625, , 629
ESP10, 217, 239, 257, 272, 289, 628, , 632
ESP10, 220, 243, 259, 278, 293, 631, , 635
ESP10, 225, 247, 264, 282, 297, 634, , 638
ESP10, 233, 254, 271, 290, 303, 637, , 641
ESP10, 235, 258, 272, 290, 304, 640, , 644
ESP10, 233, 258, 270, 288, 303, 644, , 648
ESP10, 238, 264, 279, 292, 309, 647, , 651
ESP10, 236, 264, 283, 295, 309, 650, , 654
ESP10, 232, 260, 279, 293, 308, 653, , 657
ESP10, 231, 260, 278, 293, 307, 656, , 660
ESP10, 234, 265, 282, 297, 310, 659, , 663
ESP10, 233, 263, 279, 296, 309, 663, , 667
ESP10, 229, 257, 272, 290, 302, 666, , 670
ESP10, 223, 254, 268, 286, 297, 669, , 673
ESP10, 222, 253, 268, 285, 296, 672, , 676
ESP10, 227, 258, 274, 291, 302, 675, , 679
ESP10, 232, 261, 276, 293, 304, 678, , 682
ESP10, 231, 262, 272, 290, 299, 681, , 685
ESP10, 240, 272, 279, 297, 308, 685, , 689
ESP10, 240, 270, 276, 294, 305, 688, , 692
ESP10, 243, 272, 280, 298, 308, 691, , 695
ESP10, 239, 266, 279, 294, 304, 694, , 698
ESP10, 241, 268, 281, 296, 305, 697, , 701
ESP10, 243, 270, 284, 299, 309, 700, , 704
ESP10, 244, 271, 285, 302, 310, 703, , 707
ESP10, 245, 271, 287, 304, 311, 707, , 711
ESP10, 254, 281, 297, 313, 322, 710, , 714
ESP10, 252, 279, 296, 311, 322, 713, , 717
ESP10, 255, 281, 297, 314, 323, 716, , 720
ESP10, 254, 284, 296, 313, 325, 719, , 723
ESP10, 253, 283, 294, 310, 323, 722, , 726
ESP10, 255, 288, 299, 312, 324, 725, , 729
ESP10, 254, 288, 298, 311, 323, 729, , 733
ESP10, 254, 289, 300, 312, 323, 732, , 736
Max Scale
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Scale To Last 45 Days
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/CHJW1N_SQIN.ESPF10.csv
CHJW1N_SQIN.ESPF0.csv|2026-04-30
CHJW1N_SQIN.ESPF10.csv|2026-04-30
CHJW1N_SQIN.ESPFM.csv|2026-04-30
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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