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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:
2026-07-26
Issued:
2026-07-26
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
4906
4955
60
5104
8326
APR-JUL
3856
3856
55
3856
7022
APR-AUG
4322
4354
57
4399
7679
JAN-SEP
7515
7564
64
7713
11847
JAN-JUL
6466
6466
61
6466
10543
OCT-SEP
9755
9804
69
9952
14200
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-07-26
Issued:
2026-07-26
Hide Forecast
APR-SEP
4907
4954
60
5105
8326
APR-JUL
3856
3856
55
3856
7022
APR-AUG
4322
4354
57
4398
7679
JAN-SEP
7516
7564
64
7714
11847
JAN-JUL
6466
6466
61
6466
10543
OCT-SEP
9755
9803
69
9954
14200
Reference
ESP with 0 Days QPF
Ensemble:
2026-07-26
Issued:
2026-07-26
Hide Forecast
APR-SEP
4920
4957
60
5119
8326
APR-JUL
3858
3859
55
3860
7022
APR-AUG
4328
4358
57
4409
7679
JAN-SEP
7530
7566
64
7729
11847
JAN-JUL
6468
6468
61
6470
10543
OCT-SEP
9769
9805
69
9968
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, 72, , 76
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, 81, , 85
ESP10, 182, 261, 395, 441, 475, 84, , 88
ESP10, 178, 263, 395, 441, 476, 86, , 90
ESP10, 172, 263, 398, 442, 469, 88, , 92
ESP10, 158, 251, 392, 444, 473, 90, , 94
ESP10, 147, 233, 384, 437, 473, 93, , 97
ESP10, 154, 239, 392, 436, 476, 95, , 99
ESP10, 167, 270, 398, 446, 476, 97, , 101
ESP10, 171, 270, 399, 444, 474, 99, , 103
ESP10, 165, 264, 387, 443, 470, 102, , 106
ESP10, 161, 249, 382, 436, 464, 104, , 108
ESP10, 151, 241, 369, 432, 463, 106, , 110
ESP10, 153, 245, 374, 433, 468, 108, , 112
ESP10, 154, 253, 381, 437, 464, 110, , 114
ESP10, 162, 251, 390, 440, 466, 113, , 117
ESP10, 155, 244, 372, 435, 465, 115, , 119
ESP10, 172, 250, 382, 443, 466, 117, , 121
ESP10, 180, 255, 384, 443, 465, 119, , 123
ESP10, 172, 261, 393, 448, 473, 122, , 126
ESP10, 192, 268, 397, 444, 471, 124, , 128
ESP10, 196, 263, 393, 442, 473, 126, , 130
ESP10, 204, 269, 389, 446, 474, 128, , 132
ESP10, 208, 278, 390, 447, 475, 131, , 135
ESP10, 206, 282, 386, 442, 472, 133, , 137
ESP10, 180, 250, 383, 431, 464, 135, , 139
ESP10, 178, 252, 381, 430, 461, 137, , 141
ESP10, 176, 270, 382, 429, 463, 139, , 143
ESP10, 201, 283, 382, 436, 468, 142, , 146
ESP10, 190, 263, 386, 437, 477, 144, , 148
ESP10, 193, 266, 389, 436, 481, 146, , 150
ESP10, 193, 269, 388, 440, 481, 148, , 152
ESP10, 189, 265, 385, 437, 482, 151, , 155
ESP10, 181, 261, 382, 436, 478, 153, , 157
ESP10, 187, 275, 380, 439, 480, 155, , 159
ESP10, 195, 296, 387, 437, 481, 157, , 161
ESP10, 209, 299, 393, 445, 487, 160, , 164
ESP10, 219, 299, 400, 445, 488, 162, , 166
ESP10, 212, 299, 396, 450, 486, 164, , 168
ESP10, 227, 303, 400, 450, 489, 166, , 170
ESP10, 231, 329, 405, 452, 490, 169, , 173
ESP10, 231, 330, 411, 454, 493, 171, , 175
ESP10, 235, 334, 411, 455, 496, 173, , 177
ESP10, 241, 334, 416, 457, 498, 175, , 179
ESP10, 238, 333, 412, 458, 496, 177, , 181
ESP10, 234, 339, 408, 454, 494, 180, , 184
ESP10, 234, 340, 409, 454, 493, 182, , 186
ESP10, 244, 337, 404, 456, 492, 184, , 188
ESP10, 261, 344, 413, 463, 496, 186, , 190
ESP10, 264, 347, 421, 465, 497, 189, , 193
ESP10, 262, 351, 419, 464, 498, 191, , 195
ESP10, 266, 353, 421, 465, 499, 193, , 197
ESP10, 252, 346, 420, 457, 496, 195, , 199
ESP10, 263, 353, 422, 460, 495, 198, , 202
ESP10, 275, 356, 425, 463, 500, 200, , 204
ESP10, 249, 341, 412, 461, 493, 202, , 206
ESP10, 253, 335, 387, 461, 480, 204, , 208
ESP10, 259, 341, 408, 463, 490, 206, , 210
ESP10, 254, 346, 397, 464, 487, 209, , 213
ESP10, 245, 326, 396, 462, 482, 211, , 215
ESP10, 245, 327, 397, 465, 484, 213, , 217
ESP10, 238, 331, 394, 459, 486, 215, , 219
ESP10, 230, 309, 398, 460, 483, 218, , 222
ESP10, 256, 342, 402, 465, 489, 220, , 224
ESP10, 263, 328, 400, 465, 488, 222, , 226
ESP10, 255, 341, 404, 459, 485, 224, , 228
ESP10, 255, 300, 394, 458, 481, 227, , 231
ESP10, 235, 289, 379, 451, 476, 229, , 233
ESP10, 219, 301, 372, 433, 473, 231, , 235
ESP10, 231, 288, 376, 445, 474, 233, , 237
ESP10, 238, 283, 379, 452, 475, 236, , 240
ESP10, 225, 278, 368, 439, 475, 238, , 242
ESP10, 221, 281, 356, 429, 472, 240, , 244
ESP10, 235, 294, 362, 434, 474, 242, , 246
ESP10, 230, 296, 362, 435, 475, 244, , 248
ESP10, 247, 298, 365, 436, 474, 247, , 251
ESP10, 249, 299, 372, 434, 473, 249, , 253
ESP10, 251, 302, 374, 439, 473, 251, , 255
ESP10, 253, 312, 387, 441, 478, 253, , 257
ESP10, 252, 314, 392, 442, 478, 256, , 260
ESP10, 249, 301, 369, 441, 473, 258, , 262
ESP10, 250, 308, 378, 444, 477, 260, , 264
ESP10, 251, 328, 384, 446, 477, 262, , 266
ESP10, 254, 319, 397, 447, 481, 265, , 269
ESP10, 254, 320, 398, 445, 478, 267, , 271
ESP10, 277, 320, 383, 445, 476, 269, , 273
ESP10, 257, 311, 380, 440, 474, 271, , 275
ESP10, 259, 310, 383, 433, 476, 273, , 277
ESP10, 263, 299, 378, 429, 473, 276, , 280
ESP10, 250, 314, 385, 427, 472, 278, , 282
ESP10, 250, 307, 374, 438, 472, 280, , 284
ESP10, 245, 314, 370, 440, 466, 282, , 286
ESP10, 257, 313, 372, 435, 466, 285, , 289
ESP10, 263, 315, 372, 437, 467, 287, , 291
ESP10, 265, 313, 384, 439, 467, 289, , 293
ESP10, 274, 326, 385, 439, 467, 291, , 295
ESP10, 276, 324, 385, 440, 469, 294, , 298
ESP10, 279, 320, 387, 441, 470, 296, , 300
ESP10, 304, 329, 385, 441, 470, 298, , 302
ESP10, 294, 321, 392, 441, 465, 300, , 304
ESP10, 306, 339, 392, 439, 472, 303, , 307
ESP10, 313, 326, 398, 436, 471, 305, , 309
ESP10, 295, 324, 388, 439, 466, 307, , 311
ESP10, 311, 349, 400, 438, 473, 309, , 313
ESP10, 311, 362, 400, 440, 472, 311, , 315
ESP10, 312, 369, 400, 446, 470, 314, , 318
ESP10, 309, 363, 400, 441, 478, 316, , 320
ESP10, 314, 364, 392, 449, 480, 318, , 322
ESP10, 316, 368, 400, 454, 478, 320, , 324
ESP10, 326, 371, 406, 455, 478, 323, , 327
ESP10, 343, 374, 409, 455, 480, 325, , 329
ESP10, 335, 374, 411, 459, 478, 327, , 331
ESP10, 336, 374, 411, 459, 479, 329, , 333
ESP10, 337, 374, 415, 459, 482, 332, , 336
ESP10, 339, 379, 415, 460, 482, 334, , 338
ESP10, 332, 383, 413, 464, 482, 336, , 340
ESP10, 333, 390, 418, 466, 481, 338, , 342
ESP10, 355, 388, 423, 461, 480, 340, , 344
ESP10, 338, 388, 417, 464, 483, 343, , 347
ESP10, 338, 373, 413, 449, 475, 345, , 349
ESP10, 340, 371, 417, 453, 476, 347, , 351
ESP10, 352, 376, 423, 462, 481, 349, , 353
ESP10, 363, 387, 415, 466, 485, 352, , 356
ESP10, 362, 385, 412, 461, 483, 354, , 358
ESP10, 361, 383, 416, 460, 481, 356, , 360
ESP10, 351, 381, 417, 451, 475, 358, , 362
ESP10, 345, 377, 412, 455, 466, 361, , 365
ESP10, 343, 367, 407, 446, 465, 363, , 367
ESP10, 347, 372, 413, 456, 469, 365, , 369
ESP10, 362, 383, 419, 457, 472, 367, , 371
ESP10, 370, 398, 419, 461, 480, 370, , 374
ESP10, 364, 394, 414, 459, 477, 372, , 376
ESP10, 359, 397, 414, 452, 475, 374, , 378
ESP10, 341, 377, 412, 450, 475, 376, , 380
ESP10, 326, 371, 407, 447, 471, 378, , 382
ESP10, 345, 389, 424, 453, 483, 381, , 385
ESP10, 346, 390, 422, 448, 480, 383, , 387
ESP10, 361, 391, 429, 458, 481, 385, , 389
ESP10, 366, 387, 440, 461, 486, 387, , 391
ESP10, 368, 394, 440, 457, 485, 390, , 394
ESP10, 365, 404, 423, 455, 484, 392, , 396
ESP10, 366, 408, 433, 466, 486, 394, , 398
ESP10, 374, 411, 439, 467, 484, 396, , 400
ESP10, 370, 408, 437, 456, 481, 399, , 403
ESP10, 366, 390, 436, 456, 478, 401, , 405
ESP10, 347, 384, 425, 456, 473, 403, , 407
ESP10, 381, 408, 435, 459, 478, 405, , 409
ESP10, 366, 406, 435, 462, 477, 407, , 411
ESP10, 366, 411, 444, 462, 481, 410, , 414
ESP10, 370, 407, 442, 460, 479, 412, , 416
ESP10, 385, 410, 439, 469, 481, 414, , 418
ESP10, 392, 415, 441, 465, 478, 416, , 420
ESP10, 393, 416, 439, 468, 476, 419, , 423
ESP10, 377, 414, 443, 465, 481, 421, , 425
ESP10, 401, 416, 444, 472, 482, 423, , 427
ESP10, 396, 421, 451, 474, 485, 425, , 429
ESP10, 399, 419, 450, 475, 485, 428, , 432
ESP10, 388, 416, 435, 466, 484, 430, , 434
ESP10, 412, 428, 447, 478, 491, 432, , 436
ESP10, 409, 427, 454, 482, 491, 434, , 438
ESP10, 414, 426, 459, 486, 492, 437, , 441
ESP10, 416, 431, 459, 486, 494, 439, , 443
ESP10, 417, 426, 457, 483, 491, 441, , 445
ESP10, 419, 428, 460, 485, 495, 443, , 447
ESP10, 423, 437, 465, 489, 497, 445, , 449
ESP10, 427, 448, 471, 490, 500, 448, , 452
ESP10, 426, 444, 471, 489, 498, 450, , 454
ESP10, 428, 447, 472, 490, 498, 452, , 456
ESP10, 428, 449, 474, 489, 498, 454, , 458
ESP10, 423, 437, 464, 481, 491, 457, , 461
ESP10, 432, 443, 468, 480, 487, 459, , 463
ESP10, 432, 437, 467, 479, 493, 461, , 465
ESP10, 426, 444, 467, 478, 491, 463, , 467
ESP10, 430, 439, 466, 479, 493, 466, , 470
ESP10, 432, 445, 469, 480, 495, 468, , 472
ESP10, 434, 450, 473, 481, 494, 470, , 474
ESP10, 433, 451, 469, 483, 493, 472, , 476
ESP10, 436, 450, 471, 484, 494, 474, , 478
ESP10, 434, 442, 471, 481, 491, 477, , 481
ESP10, 440, 453, 476, 487, 496, 479, , 483
ESP10, 434, 446, 472, 485, 489, 481, , 485
ESP10, 435, 451, 471, 485, 493, 483, , 487
ESP10, 433, 449, 472, 486, 489, 486, , 490
ESP10, 441, 453, 478, 489, 495, 488, , 492
ESP10, 427, 445, 466, 475, 487, 490, , 494
ESP10, 429, 443, 465, 476, 480, 492, , 496
ESP10, 427, 440, 462, 472, 477, 495, , 499
ESP10, 432, 439, 462, 473, 476, 497, , 501
ESP10, 426, 437, 458, 469, 472, 499, , 503
ESP10, 425, 437, 454, 467, 471, 501, , 505
ESP10, 429, 437, 455, 465, 469, 504, , 508
ESP10, 432, 447, 459, 470, 474, 506, , 510
ESP10, 426, 442, 460, 469, 475, 508, , 512
ESP10, 433, 448, 462, 469, 476, 510, , 514
ESP10, 431, 445, 458, 466, 472, 512, , 516
ESP10, 424, 443, 457, 463, 471, 515, , 519
ESP10, 429, 444, 456, 464, 470, 517, , 521
ESP10, 432, 441, 457, 464, 469, 519, , 523
ESP10, 438, 450, 461, 467, 472, 521, , 525
ESP10, 444, 455, 464, 471, 474, 524, , 528
ESP10, 441, 457, 465, 472, 477, 526, , 530
ESP10, 446, 461, 469, 474, 480, 528, , 532
ESP10, 446, 460, 468, 474, 478, 530, , 534
ESP10, 448, 457, 468, 473, 477, 533, , 537
ESP10, 451, 460, 470, 475, 481, 535, , 539
ESP10, 453, 460, 471, 476, 482, 537, , 541
ESP10, 455, 462, 472, 479, 483, 539, , 543
ESP10, 455, 464, 473, 480, 484, 541, , 545
ESP10, 456, 465, 473, 478, 484, 544, , 548
ESP10, 454, 465, 472, 478, 483, 546, , 550
ESP10, 454, 465, 475, 481, 484, 548, , 552
ESP10, 457, 468, 474, 482, 485, 550, , 554
ESP10, 457, 468, 473, 482, 485, 553, , 557
ESP10, 457, 466, 472, 480, 482, 555, , 559
ESP10, 457, 467, 472, 479, 482, 557, , 561
ESP10, 456, 464, 470, 477, 480, 559, , 563
ESP10, 457, 465, 472, 478, 481, 562, , 566
ESP10, 454, 463, 471, 476, 479, 564, , 568
ESP10, 460, 467, 474, 481, 483, 566, , 570
ESP10, 462, 469, 475, 482, 484, 568, , 572
ESP10, 462, 467, 474, 481, 484, 571, , 575
ESP10, 462, 468, 475, 481, 483, 573, , 577
ESP10, 463, 470, 475, 482, 484, 575, , 579
ESP10, 464, 471, 477, 482, 484, 577, , 581
ESP10, 464, 471, 478, 482, 483, 579, , 583
ESP10, 465, 471, 480, 483, 485, 582, , 586
ESP10, 465, 473, 481, 484, 485, 584, , 588
ESP10, 468, 474, 484, 486, 487, 586, , 590
ESP10, 469, 475, 483, 486, 487, 588, , 592
ESP10, 469, 474, 482, 485, 487, 591, , 595
ESP10, 468, 473, 480, 484, 485, 593, , 597
ESP10, 468, 475, 482, 484, 485, 595, , 599
ESP10, 468, 476, 482, 484, 485, 597, , 601
ESP10, 468, 474, 477, 482, 484, 600, , 604
ESP10, 469, 473, 476, 479, 483, 602, , 606
ESP10, 468, 474, 476, 480, 483, 604, , 608
ESP10, 469, 474, 477, 480, 483, 606, , 610
ESP10, 470, 476, 481, 483, 484, 608, , 612
ESP10, 470, 477, 481, 484, 485, 611, , 615
ESP10, 469, 475, 479, 482, 483, 613, , 617
ESP10, 470, 477, 481, 484, 485, 615, , 619
ESP10, 471, 477, 481, 484, 485, 617, , 621
ESP10, 470, 477, 480, 483, 484, 620, , 624
ESP10, 471, 476, 479, 480, 484, 622, , 626
ESP10, 471, 477, 481, 484, 485, 624, , 628
ESP10, 471, 478, 481, 484, 485, 626, , 630
ESP10, 472, 480, 483, 485, 485, 629, , 633
ESP10, 471, 479, 482, 484, 485, 631, , 635
ESP10, 472, 479, 483, 485, 485, 633, , 637
ESP10, 472, 479, 483, 484, 485, 635, , 639
ESP10, 473, 480, 484, 485, 486, 638, , 642
ESP10, 474, 480, 484, 486, 486, 640, , 644
ESP10, 474, 480, 483, 485, 487, 642, , 646
ESP10, 474, 481, 485, 486, 487, 644, , 648
ESP10, 474, 481, 483, 486, 487, 646, , 650
ESP10, 475, 481, 483, 485, 487, 649, , 653
ESP10, 475, 480, 483, 484, 485, 651, , 655
ESP10, 475, 481, 483, 485, 487, 653, , 657
ESP10, 476, 481, 483, 484, 485, 655, , 659
ESP10, 477, 481, 483, 484, 485, 658, , 662
ESP10, 476, 480, 483, 484, 485, 660, , 664
ESP10, 477, 481, 484, 485, 485, 662, , 666
ESP10, 477, 481, 484, 485, 486, 664, , 668
ESP10, 476, 480, 483, 484, 485, 667, , 671
ESP10, 474, 478, 481, 482, 482, 669, , 673
ESP10, 473, 477, 480, 481, 481, 671, , 675
ESP10, 472, 476, 479, 480, 481, 673, , 677
ESP10, 473, 477, 480, 481, 482, 675, , 679
ESP10, 473, 478, 480, 481, 482, 678, , 682
ESP10, 474, 478, 481, 482, 483, 680, , 684
ESP10, 475, 479, 482, 483, 484, 682, , 686
ESP10, 475, 479, 482, 483, 483, 684, , 688
ESP10, 476, 480, 483, 484, 484, 687, , 691
ESP10, 477, 480, 483, 484, 485, 689, , 693
ESP10, 477, 481, 484, 485, 485, 691, , 695
ESP10, 477, 481, 484, 485, 485, 693, , 697
ESP10, 476, 480, 483, 484, 485, 696, , 700
ESP10, 477, 481, 484, 485, 485, 698, , 702
ESP10, 477, 480, 483, 484, 485, 700, , 704
ESP10, 478, 481, 484, 485, 486, 702, , 706
ESP10, 478, 482, 485, 485, 486, 705, , 709
ESP10, 478, 481, 484, 485, 486, 707, , 711
ESP10, 478, 482, 485, 485, 486, 709, , 713
ESP10, 478, 482, 485, 485, 486, 711, , 715
ESP10, 478, 482, 485, 485, 486, 713, , 717
ESP10, 479, 482, 485, 486, 487, 716, , 720
ESP10, 479, 483, 486, 487, 487, 718, , 722
ESP10, 480, 483, 486, 487, 488, 720, , 724
ESP10, 479, 483, 486, 487, 488, 722, , 726
ESP10, 479, 483, 486, 487, 488, 725, , 729
ESP10, 480, 483, 486, 487, 488, 727, , 731
ESP10, 480, 483, 486, 487, 488, 729, , 733
ESP10, 481, 485, 487, 488, 489, 731, , 735
ESP10, 482, 485, 487, 489, 489, 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/natural/HCDI1N_SQIN.ESPF10.csv
HCDI1N_SQIN.ESPF0.csv|2026-07-26
HCDI1N_SQIN.ESPF10.csv|2026-07-26
HCDI1N_SQIN.ESPFM.csv|2026-07-26
APR-SEP
SNAKE - AT HELLS CANYON DAM
(
HCDI1
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-26
Issued:
2026-07-26
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
5474
7228
87
11776
8326
APR-JUL
4152
5904
84
10259
7022
APR-AUG
4812
6551
85
11051
7679
JAN-SEP
8072
10505
89
16972
11847
JAN-JUL
6725
9111
86
15396
10543
OCT-SEP
10296
13076
92
20201
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|2026-07-26
HCDI1N_SQIN.ESPF10.csv|2026-07-26
HCDI1N_SQIN.ESPFM.csv|2026-07-26
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
