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Archive:
Water Year
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SNAKE - AT HELLS CANYON DAM
(
HCDI1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-20
Issued:
2026-07-20
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
4950
4995
60
5158
8326
APR-JUL
3861
3861
55
3861
7022
JAN-SEP
7559
7604
64
7768
11847
JAN-JUL
6470
6470
61
6470
10543
OCT-SEP
9798
9843
69
10007
14200
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-07-20
Issued:
2026-07-20
Hide Forecast
APR-SEP
4948
4994
60
5160
8326
APR-JUL
3860
3861
55
3863
7022
JAN-SEP
7558
7603
64
7769
11847
JAN-JUL
6469
6470
61
6473
10543
OCT-SEP
9797
9842
69
10008
14200
Reference
ESP with 0 Days QPF
Ensemble:
2026-07-20
Issued:
2026-07-20
Hide Forecast
APR-SEP
4954
4996
60
5170
8326
APR-JUL
3862
3864
55
3868
7022
JAN-SEP
7564
7605
64
7779
11847
JAN-JUL
6472
6473
61
6478
10543
OCT-SEP
9803
9844
69
10018
14200
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 196, 246, 393, 439, 472, 70, , 74
ESP10, 178, 263, 389, 450, 476, 73, , 77
ESP10, 177, 261, 398, 446, 479, 75, , 79
ESP10, 180, 263, 395, 438, 476, 77, , 81
ESP10, 187, 267, 400, 440, 481, 79, , 83
ESP10, 175, 264, 402, 439, 474, 82, , 86
ESP10, 182, 261, 395, 441, 475, 84, , 88
ESP10, 178, 263, 395, 441, 476, 86, , 90
ESP10, 172, 263, 398, 442, 469, 89, , 93
ESP10, 158, 251, 392, 444, 473, 91, , 95
ESP10, 147, 233, 384, 437, 473, 93, , 97
ESP10, 154, 239, 392, 436, 476, 95, , 99
ESP10, 167, 270, 398, 446, 476, 98, , 102
ESP10, 171, 270, 399, 444, 474, 100, , 104
ESP10, 165, 264, 387, 443, 470, 102, , 106
ESP10, 161, 249, 382, 436, 464, 104, , 108
ESP10, 151, 241, 369, 432, 463, 107, , 111
ESP10, 153, 245, 374, 433, 468, 109, , 113
ESP10, 154, 253, 381, 437, 464, 111, , 115
ESP10, 162, 251, 390, 440, 466, 114, , 118
ESP10, 155, 244, 372, 435, 465, 116, , 120
ESP10, 172, 250, 382, 443, 466, 118, , 122
ESP10, 180, 255, 384, 443, 465, 120, , 124
ESP10, 172, 261, 393, 448, 473, 123, , 127
ESP10, 192, 268, 397, 444, 471, 125, , 129
ESP10, 196, 263, 393, 442, 473, 127, , 131
ESP10, 204, 269, 389, 446, 474, 130, , 134
ESP10, 208, 278, 390, 447, 475, 132, , 136
ESP10, 206, 282, 386, 442, 472, 134, , 138
ESP10, 180, 250, 383, 431, 464, 136, , 140
ESP10, 178, 252, 381, 430, 461, 139, , 143
ESP10, 176, 270, 382, 429, 463, 141, , 145
ESP10, 201, 283, 382, 436, 468, 143, , 147
ESP10, 190, 263, 386, 437, 477, 145, , 149
ESP10, 193, 266, 389, 436, 481, 148, , 152
ESP10, 193, 269, 388, 440, 481, 150, , 154
ESP10, 189, 265, 385, 437, 482, 152, , 156
ESP10, 181, 261, 382, 436, 478, 155, , 159
ESP10, 187, 275, 380, 439, 480, 157, , 161
ESP10, 195, 296, 387, 437, 481, 159, , 163
ESP10, 209, 299, 393, 445, 487, 161, , 165
ESP10, 219, 299, 400, 445, 488, 164, , 168
ESP10, 212, 299, 396, 450, 486, 166, , 170
ESP10, 227, 303, 400, 450, 489, 168, , 172
ESP10, 231, 329, 405, 452, 490, 171, , 175
ESP10, 231, 330, 411, 454, 493, 173, , 177
ESP10, 235, 334, 411, 455, 496, 175, , 179
ESP10, 241, 334, 416, 457, 498, 177, , 181
ESP10, 238, 333, 412, 458, 496, 180, , 184
ESP10, 234, 339, 408, 454, 494, 182, , 186
ESP10, 234, 340, 409, 454, 493, 184, , 188
ESP10, 244, 337, 404, 456, 492, 187, , 191
ESP10, 261, 344, 413, 463, 496, 189, , 193
ESP10, 264, 347, 421, 465, 497, 191, , 195
ESP10, 262, 351, 419, 464, 498, 193, , 197
ESP10, 266, 353, 421, 465, 499, 196, , 200
ESP10, 252, 346, 420, 457, 496, 198, , 202
ESP10, 263, 353, 422, 460, 495, 200, , 204
ESP10, 275, 356, 425, 463, 500, 202, , 206
ESP10, 249, 341, 412, 461, 493, 205, , 209
ESP10, 253, 335, 387, 461, 480, 207, , 211
ESP10, 259, 341, 408, 463, 490, 209, , 213
ESP10, 254, 346, 397, 464, 487, 212, , 216
ESP10, 245, 326, 396, 462, 482, 214, , 218
ESP10, 245, 327, 397, 465, 484, 216, , 220
ESP10, 238, 331, 394, 459, 486, 218, , 222
ESP10, 230, 309, 398, 460, 483, 221, , 225
ESP10, 256, 342, 402, 465, 489, 223, , 227
ESP10, 263, 328, 400, 465, 488, 225, , 229
ESP10, 255, 341, 404, 459, 485, 228, , 232
ESP10, 255, 300, 394, 458, 481, 230, , 234
ESP10, 235, 289, 379, 451, 476, 232, , 236
ESP10, 219, 301, 372, 433, 473, 234, , 238
ESP10, 231, 288, 376, 445, 474, 237, , 241
ESP10, 238, 283, 379, 452, 475, 239, , 243
ESP10, 225, 278, 368, 439, 475, 241, , 245
ESP10, 221, 281, 356, 429, 472, 243, , 247
ESP10, 235, 294, 362, 434, 474, 246, , 250
ESP10, 230, 296, 362, 435, 475, 248, , 252
ESP10, 247, 298, 365, 436, 474, 250, , 254
ESP10, 249, 299, 372, 434, 473, 253, , 257
ESP10, 251, 302, 374, 439, 473, 255, , 259
ESP10, 253, 312, 387, 441, 478, 257, , 261
ESP10, 252, 314, 392, 442, 478, 259, , 263
ESP10, 249, 301, 369, 441, 473, 262, , 266
ESP10, 250, 308, 378, 444, 477, 264, , 268
ESP10, 251, 328, 384, 446, 477, 266, , 270
ESP10, 254, 319, 397, 447, 481, 269, , 273
ESP10, 254, 320, 398, 445, 478, 271, , 275
ESP10, 277, 320, 383, 445, 476, 273, , 277
ESP10, 257, 311, 380, 440, 474, 275, , 279
ESP10, 259, 310, 383, 433, 476, 278, , 282
ESP10, 263, 299, 378, 429, 473, 280, , 284
ESP10, 250, 314, 385, 427, 472, 282, , 286
ESP10, 250, 307, 374, 438, 472, 284, , 288
ESP10, 245, 314, 370, 440, 466, 287, , 291
ESP10, 257, 313, 372, 435, 466, 289, , 293
ESP10, 263, 315, 372, 437, 467, 291, , 295
ESP10, 265, 313, 384, 439, 467, 294, , 298
ESP10, 274, 326, 385, 439, 467, 296, , 300
ESP10, 276, 324, 385, 440, 469, 298, , 302
ESP10, 279, 320, 387, 441, 470, 300, , 304
ESP10, 304, 329, 385, 441, 470, 303, , 307
ESP10, 294, 321, 392, 441, 465, 305, , 309
ESP10, 306, 339, 392, 439, 472, 307, , 311
ESP10, 313, 326, 398, 436, 471, 310, , 314
ESP10, 295, 324, 388, 439, 466, 312, , 316
ESP10, 311, 349, 400, 438, 473, 314, , 318
ESP10, 311, 362, 400, 440, 472, 316, , 320
ESP10, 312, 369, 400, 446, 470, 319, , 323
ESP10, 309, 363, 400, 441, 478, 321, , 325
ESP10, 314, 364, 392, 449, 480, 323, , 327
ESP10, 316, 368, 400, 454, 478, 326, , 330
ESP10, 326, 371, 406, 455, 478, 328, , 332
ESP10, 343, 374, 409, 455, 480, 330, , 334
ESP10, 335, 374, 411, 459, 478, 332, , 336
ESP10, 336, 374, 411, 459, 479, 335, , 339
ESP10, 337, 374, 415, 459, 482, 337, , 341
ESP10, 339, 379, 415, 460, 482, 339, , 343
ESP10, 332, 383, 413, 464, 482, 341, , 345
ESP10, 333, 390, 418, 466, 481, 344, , 348
ESP10, 355, 388, 423, 461, 480, 346, , 350
ESP10, 338, 388, 417, 464, 483, 348, , 352
ESP10, 338, 373, 413, 449, 475, 351, , 355
ESP10, 340, 371, 417, 453, 476, 353, , 357
ESP10, 352, 376, 423, 462, 481, 355, , 359
ESP10, 363, 387, 415, 466, 485, 357, , 361
ESP10, 362, 385, 412, 461, 483, 360, , 364
ESP10, 361, 383, 416, 460, 481, 362, , 366
ESP10, 351, 381, 417, 451, 475, 364, , 368
ESP10, 345, 377, 412, 455, 466, 367, , 371
ESP10, 343, 367, 407, 446, 465, 369, , 373
ESP10, 347, 372, 413, 456, 469, 371, , 375
ESP10, 362, 383, 419, 457, 472, 373, , 377
ESP10, 370, 398, 419, 461, 480, 376, , 380
ESP10, 364, 394, 414, 459, 477, 378, , 382
ESP10, 359, 397, 414, 452, 475, 380, , 384
ESP10, 341, 377, 412, 450, 475, 382, , 386
ESP10, 326, 371, 407, 447, 471, 385, , 389
ESP10, 345, 389, 424, 453, 483, 387, , 391
ESP10, 346, 390, 422, 448, 480, 389, , 393
ESP10, 361, 391, 429, 458, 481, 392, , 396
ESP10, 366, 387, 440, 461, 486, 394, , 398
ESP10, 368, 394, 440, 457, 485, 396, , 400
ESP10, 365, 404, 423, 455, 484, 398, , 402
ESP10, 366, 408, 433, 466, 486, 401, , 405
ESP10, 374, 411, 439, 467, 484, 403, , 407
ESP10, 370, 408, 437, 456, 481, 405, , 409
ESP10, 366, 390, 436, 456, 478, 408, , 412
ESP10, 347, 384, 425, 456, 473, 410, , 414
ESP10, 381, 408, 435, 459, 478, 412, , 416
ESP10, 366, 406, 435, 462, 477, 414, , 418
ESP10, 366, 411, 444, 462, 481, 417, , 421
ESP10, 370, 407, 442, 460, 479, 419, , 423
ESP10, 385, 410, 439, 469, 481, 421, , 425
ESP10, 392, 415, 441, 465, 478, 424, , 428
ESP10, 393, 416, 439, 468, 476, 426, , 430
ESP10, 377, 414, 443, 465, 481, 428, , 432
ESP10, 401, 416, 444, 472, 482, 430, , 434
ESP10, 396, 421, 451, 474, 485, 433, , 437
ESP10, 399, 419, 450, 475, 485, 435, , 439
ESP10, 388, 416, 435, 466, 484, 437, , 441
ESP10, 412, 428, 447, 478, 491, 439, , 443
ESP10, 409, 427, 454, 482, 491, 442, , 446
ESP10, 414, 426, 459, 486, 492, 444, , 448
ESP10, 416, 431, 459, 486, 494, 446, , 450
ESP10, 417, 426, 457, 483, 491, 449, , 453
ESP10, 419, 428, 460, 485, 495, 451, , 455
ESP10, 423, 437, 465, 489, 497, 453, , 457
ESP10, 427, 448, 471, 490, 500, 455, , 459
ESP10, 426, 444, 471, 489, 498, 458, , 462
ESP10, 428, 447, 472, 490, 498, 460, , 464
ESP10, 428, 449, 474, 489, 498, 462, , 466
ESP10, 423, 437, 464, 481, 491, 465, , 469
ESP10, 432, 443, 468, 480, 487, 467, , 471
ESP10, 432, 437, 467, 479, 493, 469, , 473
ESP10, 426, 444, 467, 478, 491, 471, , 475
ESP10, 430, 439, 466, 479, 493, 474, , 478
ESP10, 432, 445, 469, 480, 495, 476, , 480
ESP10, 434, 450, 473, 481, 494, 478, , 482
ESP10, 433, 451, 469, 483, 493, 480, , 484
ESP10, 436, 450, 471, 484, 494, 483, , 487
ESP10, 434, 442, 471, 481, 491, 485, , 489
ESP10, 440, 453, 476, 487, 496, 487, , 491
ESP10, 434, 446, 472, 485, 489, 490, , 494
ESP10, 435, 451, 471, 485, 493, 492, , 496
ESP10, 433, 449, 472, 486, 489, 494, , 498
ESP10, 441, 453, 478, 489, 495, 496, , 500
ESP10, 427, 445, 466, 475, 487, 499, , 503
ESP10, 429, 443, 465, 476, 480, 501, , 505
ESP10, 427, 440, 462, 472, 477, 503, , 507
ESP10, 432, 439, 462, 473, 476, 506, , 510
ESP10, 426, 437, 458, 469, 472, 508, , 512
ESP10, 425, 437, 454, 467, 471, 510, , 514
ESP10, 429, 437, 455, 465, 469, 512, , 516
ESP10, 432, 447, 459, 470, 474, 515, , 519
ESP10, 426, 442, 460, 469, 475, 517, , 521
ESP10, 433, 448, 462, 469, 476, 519, , 523
ESP10, 431, 445, 458, 466, 472, 522, , 526
ESP10, 424, 443, 457, 463, 471, 524, , 528
ESP10, 429, 444, 456, 464, 470, 526, , 530
ESP10, 432, 441, 457, 464, 469, 528, , 532
ESP10, 438, 450, 461, 467, 472, 531, , 535
ESP10, 444, 455, 464, 471, 474, 533, , 537
ESP10, 441, 457, 465, 472, 477, 535, , 539
ESP10, 446, 461, 469, 474, 480, 537, , 541
ESP10, 446, 460, 468, 474, 478, 540, , 544
ESP10, 448, 457, 468, 473, 477, 542, , 546
ESP10, 451, 460, 470, 475, 481, 544, , 548
ESP10, 453, 460, 471, 476, 482, 547, , 551
ESP10, 455, 462, 472, 479, 483, 549, , 553
ESP10, 455, 464, 473, 480, 484, 551, , 555
ESP10, 456, 465, 473, 478, 484, 553, , 557
ESP10, 454, 465, 472, 478, 483, 556, , 560
ESP10, 454, 465, 475, 481, 484, 558, , 562
ESP10, 457, 468, 474, 482, 485, 560, , 564
ESP10, 457, 468, 473, 482, 485, 563, , 567
ESP10, 457, 466, 472, 480, 482, 565, , 569
ESP10, 457, 467, 472, 479, 482, 567, , 571
ESP10, 456, 464, 470, 477, 480, 569, , 573
ESP10, 457, 465, 472, 478, 481, 572, , 576
ESP10, 454, 463, 471, 476, 479, 574, , 578
ESP10, 460, 467, 474, 481, 483, 576, , 580
ESP10, 462, 469, 475, 482, 484, 578, , 582
ESP10, 462, 467, 474, 481, 484, 581, , 585
ESP10, 462, 468, 475, 481, 483, 583, , 587
ESP10, 463, 470, 475, 482, 484, 585, , 589
ESP10, 464, 471, 477, 482, 484, 588, , 592
ESP10, 464, 471, 478, 482, 483, 590, , 594
ESP10, 465, 471, 480, 483, 485, 592, , 596
ESP10, 465, 473, 481, 484, 485, 594, , 598
ESP10, 468, 474, 484, 486, 487, 597, , 601
ESP10, 469, 475, 483, 486, 487, 599, , 603
ESP10, 469, 474, 482, 485, 487, 601, , 605
ESP10, 468, 473, 480, 484, 485, 604, , 608
ESP10, 468, 475, 482, 484, 485, 606, , 610
ESP10, 468, 476, 482, 484, 485, 608, , 612
ESP10, 468, 474, 477, 482, 484, 610, , 614
ESP10, 469, 473, 476, 479, 483, 613, , 617
ESP10, 468, 474, 476, 480, 483, 615, , 619
ESP10, 469, 474, 477, 480, 483, 617, , 621
ESP10, 470, 476, 481, 483, 484, 619, , 623
ESP10, 470, 477, 481, 484, 485, 622, , 626
ESP10, 469, 475, 479, 482, 483, 624, , 628
ESP10, 470, 477, 481, 484, 485, 626, , 630
ESP10, 471, 477, 481, 484, 485, 629, , 633
ESP10, 470, 477, 480, 483, 484, 631, , 635
ESP10, 471, 476, 479, 480, 484, 633, , 637
ESP10, 471, 477, 481, 484, 485, 635, , 639
ESP10, 471, 478, 481, 484, 485, 638, , 642
ESP10, 472, 480, 483, 485, 485, 640, , 644
ESP10, 471, 479, 482, 484, 485, 642, , 646
ESP10, 472, 479, 483, 485, 485, 645, , 649
ESP10, 472, 479, 483, 484, 485, 647, , 651
ESP10, 473, 480, 484, 485, 486, 649, , 653
ESP10, 474, 480, 484, 486, 486, 651, , 655
ESP10, 474, 480, 483, 485, 487, 654, , 658
ESP10, 474, 481, 485, 486, 487, 656, , 660
ESP10, 474, 481, 483, 486, 487, 658, , 662
ESP10, 475, 481, 483, 485, 487, 661, , 665
ESP10, 475, 480, 483, 484, 485, 663, , 667
ESP10, 475, 481, 483, 485, 487, 665, , 669
ESP10, 476, 481, 483, 484, 485, 667, , 671
ESP10, 477, 481, 483, 484, 485, 670, , 674
ESP10, 476, 480, 483, 484, 485, 672, , 676
ESP10, 477, 481, 484, 485, 485, 674, , 678
ESP10, 477, 481, 484, 485, 486, 676, , 680
ESP10, 476, 480, 483, 484, 485, 679, , 683
ESP10, 474, 478, 481, 482, 482, 681, , 685
ESP10, 473, 477, 480, 481, 481, 683, , 687
ESP10, 472, 476, 479, 480, 481, 686, , 690
ESP10, 473, 477, 480, 481, 482, 688, , 692
ESP10, 473, 478, 480, 481, 482, 690, , 694
ESP10, 474, 478, 481, 482, 483, 692, , 696
ESP10, 475, 479, 482, 483, 484, 695, , 699
ESP10, 475, 479, 482, 483, 483, 697, , 701
ESP10, 476, 480, 483, 484, 484, 699, , 703
ESP10, 477, 480, 483, 484, 485, 702, , 706
ESP10, 477, 481, 484, 485, 485, 704, , 708
ESP10, 477, 481, 484, 485, 485, 706, , 710
ESP10, 476, 480, 483, 484, 485, 708, , 712
ESP10, 477, 481, 484, 485, 485, 711, , 715
ESP10, 477, 480, 483, 484, 485, 713, , 717
ESP10, 478, 481, 484, 485, 486, 715, , 719
ESP10, 478, 482, 485, 485, 486, 717, , 721
ESP10, 478, 481, 484, 485, 486, 720, , 724
ESP10, 478, 482, 485, 485, 486, 722, , 726
ESP10, 478, 482, 485, 485, 486, 724, , 728
ESP10, 478, 482, 485, 485, 486, 727, , 731
ESP10, 479, 482, 485, 486, 487, 729, , 733
ESP10, 479, 483, 486, 487, 487, 731, , 735
ESP10, 480, 483, 486, 487, 488, 733, , 737
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/natural/HCDI1N_SQIN.ESPF10.csv
HCDI1N_SQIN.ESPF0.csv|2026-07-20
HCDI1N_SQIN.ESPF10.csv|2026-07-20
HCDI1N_SQIN.ESPFM.csv|2026-07-20
APR-SEP
SNAKE - AT HELLS CANYON DAM
(
HCDI1
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-20
Issued:
2026-07-20
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
5311
7200
86
11816
8326
APR-JUL
4030
5901
84
10299
7022
JAN-SEP
8041
10318
87
17154
11847
JAN-JUL
6777
9053
86
15568
10543
OCT-SEP
10574
13277
94
20611
14200
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/HCDI1N_SQIN.ESPF10.csv
HCDI1N_SQIN.ESPF0.csv|2026-07-20
HCDI1N_SQIN.ESPF10.csv|2026-07-20
HCDI1N_SQIN.ESPFM.csv|2026-07-20
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
