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Water Year
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SNAKE - AT AMERICAN FALLS DAM
(
AMFI1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-12
Issued:
2026-08-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
717
739
28
764
2624
APR-JUL
622
622
25
622
2529
APR-AUG
561
565
22
570
2531
JAN-SEP
1857
1878
50
1903
3745
JAN-JUL
1762
1762
48
1762
3651
OCT-SEP
2944
2966
61
2991
4883
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-12
Issued:
2026-08-12
Hide Forecast
APR-SEP
720
743
28
779
2624
APR-JUL
622
622
25
622
2529
APR-AUG
558
566
22
586
2531
JAN-SEP
1859
1883
50
1919
3745
JAN-JUL
1762
1762
48
1762
3651
OCT-SEP
2946
2970
61
3006
4883
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-12
Issued:
2026-08-12
Hide Forecast
APR-SEP
676
687
26
705
2624
APR-JUL
622
622
25
622
2529
APR-AUG
553
564
22
578
2531
JAN-SEP
1815
1826
49
1844
3745
JAN-JUL
1762
1762
48
1762
3651
OCT-SEP
2902
2913
60
2931
4883
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 254, 339, 418, 451, 481, 70, , 74
ESP10, 246, 329, 412, 446, 476, 72, , 76
ESP10, 249, 334, 414, 450, 478, 74, , 78
ESP10, 250, 332, 416, 449, 477, 76, , 80
ESP10, 255, 334, 417, 450, 478, 79, , 83
ESP10, 257, 331, 415, 450, 476, 81, , 85
ESP10, 257, 327, 414, 447, 474, 83, , 87
ESP10, 254, 322, 414, 445, 472, 85, , 89
ESP10, 251, 319, 411, 443, 471, 87, , 91
ESP10, 240, 308, 404, 437, 466, 89, , 93
ESP10, 236, 303, 399, 433, 462, 91, , 95
ESP10, 241, 302, 399, 435, 463, 93, , 97
ESP10, 251, 308, 405, 440, 467, 95, , 99
ESP10, 258, 310, 406, 441, 470, 98, , 102
ESP10, 261, 312, 414, 443, 474, 100, , 104
ESP10, 248, 302, 407, 439, 469, 102, , 106
ESP10, 239, 294, 401, 434, 465, 104, , 108
ESP10, 238, 293, 399, 433, 464, 106, , 110
ESP10, 249, 302, 406, 439, 469, 108, , 112
ESP10, 250, 303, 406, 440, 469, 110, , 114
ESP10, 247, 300, 404, 438, 467, 112, , 116
ESP10, 256, 313, 412, 442, 471, 114, , 118
ESP10, 256, 318, 414, 444, 471, 117, , 121
ESP10, 258, 328, 415, 445, 472, 119, , 123
ESP10, 264, 335, 422, 446, 475, 121, , 125
ESP10, 264, 334, 421, 445, 472, 123, , 127
ESP10, 269, 340, 425, 448, 474, 125, , 129
ESP10, 277, 343, 426, 448, 476, 127, , 131
ESP10, 279, 344, 425, 449, 477, 129, , 133
ESP10, 267, 332, 416, 443, 472, 131, , 135
ESP10, 269, 335, 417, 445, 473, 134, , 138
ESP10, 276, 343, 419, 446, 477, 136, , 140
ESP10, 283, 349, 421, 449, 480, 138, , 142
ESP10, 278, 348, 418, 448, 478, 140, , 144
ESP10, 278, 348, 419, 449, 478, 142, , 146
ESP10, 278, 348, 422, 450, 480, 144, , 148
ESP10, 277, 346, 421, 451, 483, 146, , 150
ESP10, 271, 339, 415, 448, 480, 148, , 152
ESP10, 269, 336, 412, 447, 478, 150, , 154
ESP10, 279, 345, 421, 451, 482, 153, , 157
ESP10, 287, 350, 425, 454, 484, 155, , 159
ESP10, 283, 343, 423, 451, 481, 157, , 161
ESP10, 288, 347, 427, 453, 483, 159, , 163
ESP10, 294, 350, 430, 455, 484, 161, , 165
ESP10, 298, 350, 431, 457, 484, 163, , 167
ESP10, 296, 349, 433, 456, 482, 165, , 169
ESP10, 302, 355, 438, 461, 486, 167, , 171
ESP10, 305, 358, 440, 462, 489, 169, , 173
ESP10, 304, 361, 439, 462, 488, 172, , 176
ESP10, 298, 363, 436, 460, 487, 174, , 178
ESP10, 301, 365, 438, 460, 487, 176, , 180
ESP10, 297, 364, 437, 458, 486, 178, , 182
ESP10, 310, 369, 440, 460, 487, 180, , 184
ESP10, 313, 373, 441, 461, 488, 182, , 186
ESP10, 319, 383, 441, 461, 489, 184, , 188
ESP10, 319, 386, 441, 464, 489, 186, , 190
ESP10, 310, 379, 438, 465, 486, 188, , 192
ESP10, 315, 384, 441, 467, 487, 191, , 195
ESP10, 325, 388, 443, 468, 489, 193, , 197
ESP10, 316, 371, 433, 458, 482, 195, , 199
ESP10, 306, 356, 424, 452, 473, 197, , 201
ESP10, 319, 365, 432, 457, 479, 199, , 203
ESP10, 309, 357, 426, 453, 475, 201, , 205
ESP10, 300, 351, 423, 450, 473, 203, , 207
ESP10, 306, 352, 426, 453, 474, 205, , 209
ESP10, 301, 345, 421, 448, 470, 207, , 211
ESP10, 294, 340, 415, 446, 467, 210, , 214
ESP10, 310, 355, 425, 454, 475, 212, , 216
ESP10, 314, 361, 429, 457, 477, 214, , 218
ESP10, 305, 354, 422, 454, 472, 216, , 220
ESP10, 295, 341, 412, 447, 467, 218, , 222
ESP10, 287, 331, 403, 442, 463, 220, , 224
ESP10, 276, 317, 393, 435, 457, 222, , 226
ESP10, 278, 320, 396, 437, 459, 224, , 228
ESP10, 282, 322, 397, 438, 464, 227, , 231
ESP10, 272, 314, 387, 431, 460, 229, , 233
ESP10, 262, 303, 378, 424, 456, 231, , 235
ESP10, 266, 298, 374, 421, 456, 233, , 237
ESP10, 271, 301, 379, 423, 457, 235, , 239
ESP10, 275, 299, 381, 422, 458, 237, , 241
ESP10, 280, 303, 381, 425, 460, 239, , 243
ESP10, 289, 309, 383, 434, 461, 241, , 245
ESP10, 305, 320, 390, 442, 465, 243, , 247
ESP10, 301, 318, 386, 440, 462, 246, , 250
ESP10, 292, 315, 379, 434, 458, 248, , 252
ESP10, 292, 315, 382, 435, 461, 250, , 254
ESP10, 294, 316, 386, 436, 465, 252, , 256
ESP10, 305, 324, 393, 441, 468, 254, , 258
ESP10, 305, 322, 391, 441, 468, 256, , 260
ESP10, 306, 322, 389, 441, 467, 258, , 262
ESP10, 296, 319, 374, 432, 460, 260, , 264
ESP10, 291, 317, 373, 429, 456, 262, , 266
ESP10, 293, 331, 372, 429, 456, 265, , 269
ESP10, 283, 321, 361, 420, 450, 267, , 271
ESP10, 277, 315, 358, 415, 446, 269, , 273
ESP10, 276, 313, 360, 412, 444, 271, , 275
ESP10, 284, 314, 363, 414, 446, 273, , 277
ESP10, 290, 313, 362, 412, 448, 275, , 279
ESP10, 292, 315, 363, 413, 449, 277, , 281
ESP10, 295, 315, 366, 412, 452, 279, , 283
ESP10, 296, 320, 369, 413, 453, 281, , 285
ESP10, 295, 320, 369, 414, 453, 284, , 288
ESP10, 296, 321, 369, 416, 453, 286, , 290
ESP10, 293, 324, 369, 414, 451, 288, , 292
ESP10, 297, 337, 375, 419, 454, 290, , 294
ESP10, 297, 338, 377, 420, 453, 292, , 296
ESP10, 292, 335, 374, 416, 450, 294, , 298
ESP10, 301, 343, 381, 422, 454, 296, , 300
ESP10, 300, 347, 380, 425, 453, 298, , 302
ESP10, 308, 353, 384, 430, 457, 300, , 304
ESP10, 315, 351, 383, 432, 455, 303, , 307
ESP10, 319, 353, 385, 434, 456, 305, , 309
ESP10, 321, 359, 389, 435, 458, 307, , 311
ESP10, 322, 360, 391, 437, 459, 309, , 313
ESP10, 325, 363, 392, 437, 459, 311, , 315
ESP10, 330, 366, 393, 439, 460, 313, , 317
ESP10, 331, 366, 393, 439, 461, 315, , 319
ESP10, 334, 367, 392, 439, 461, 317, , 321
ESP10, 336, 372, 393, 438, 461, 320, , 324
ESP10, 344, 377, 397, 442, 462, 322, , 326
ESP10, 348, 376, 395, 445, 461, 324, , 328
ESP10, 345, 373, 398, 446, 459, 326, , 330
ESP10, 346, 374, 404, 447, 460, 328, , 332
ESP10, 336, 364, 396, 440, 455, 330, , 334
ESP10, 337, 366, 399, 441, 457, 332, , 336
ESP10, 342, 368, 400, 441, 457, 334, , 338
ESP10, 345, 374, 403, 443, 458, 336, , 340
ESP10, 348, 378, 410, 444, 459, 339, , 343
ESP10, 347, 377, 413, 445, 459, 341, , 345
ESP10, 354, 375, 408, 442, 456, 343, , 347
ESP10, 347, 367, 401, 434, 451, 345, , 349
ESP10, 344, 369, 399, 432, 450, 347, , 351
ESP10, 348, 372, 404, 435, 456, 349, , 353
ESP10, 349, 378, 407, 437, 457, 351, , 355
ESP10, 359, 388, 416, 447, 463, 353, , 357
ESP10, 359, 389, 419, 448, 464, 355, , 359
ESP10, 356, 386, 416, 444, 463, 358, , 362
ESP10, 349, 377, 410, 440, 461, 360, , 364
ESP10, 343, 375, 403, 433, 457, 362, , 366
ESP10, 352, 385, 412, 442, 462, 364, , 368
ESP10, 352, 381, 410, 439, 460, 366, , 370
ESP10, 347, 378, 410, 436, 456, 368, , 372
ESP10, 362, 394, 427, 449, 465, 370, , 374
ESP10, 359, 391, 423, 446, 461, 372, , 376
ESP10, 360, 394, 422, 448, 461, 374, , 378
ESP10, 360, 393, 419, 449, 460, 377, , 381
ESP10, 359, 392, 422, 450, 459, 379, , 383
ESP10, 356, 389, 418, 446, 456, 381, , 385
ESP10, 347, 381, 413, 438, 449, 383, , 387
ESP10, 340, 372, 410, 430, 442, 385, , 389
ESP10, 353, 386, 421, 440, 452, 387, , 391
ESP10, 352, 390, 420, 441, 452, 389, , 393
ESP10, 357, 395, 426, 445, 456, 391, , 395
ESP10, 354, 393, 425, 445, 454, 393, , 397
ESP10, 361, 398, 432, 448, 457, 396, , 400
ESP10, 355, 395, 428, 443, 454, 398, , 402
ESP10, 355, 395, 428, 444, 453, 400, , 404
ESP10, 353, 394, 425, 443, 450, 402, , 406
ESP10, 354, 396, 427, 444, 453, 404, , 408
ESP10, 361, 404, 437, 450, 461, 406, , 410
ESP10, 360, 398, 432, 447, 458, 408, , 412
ESP10, 354, 396, 426, 441, 452, 410, , 414
ESP10, 365, 406, 435, 452, 463, 413, , 417
ESP10, 366, 411, 438, 455, 465, 415, , 419
ESP10, 372, 414, 444, 459, 466, 417, , 421
ESP10, 373, 416, 446, 460, 467, 419, , 423
ESP10, 374, 416, 445, 459, 469, 421, , 425
ESP10, 381, 421, 449, 463, 472, 423, , 427
ESP10, 389, 426, 452, 467, 474, 425, , 429
ESP10, 393, 428, 453, 469, 474, 427, , 431
ESP10, 399, 428, 455, 469, 474, 429, , 433
ESP10, 403, 428, 455, 471, 478, 432, , 436
ESP10, 407, 428, 452, 470, 476, 434, , 438
ESP10, 398, 419, 444, 461, 469, 436, , 440
ESP10, 393, 414, 440, 455, 466, 438, , 442
ESP10, 395, 414, 440, 456, 466, 440, , 444
ESP10, 399, 417, 441, 461, 468, 442, , 446
ESP10, 398, 418, 439, 461, 470, 444, , 448
ESP10, 398, 419, 442, 462, 471, 446, , 450
ESP10, 395, 419, 445, 460, 469, 448, , 452
ESP10, 399, 420, 444, 460, 469, 451, , 455
ESP10, 396, 417, 440, 458, 466, 453, , 457
ESP10, 395, 416, 440, 459, 464, 455, , 459
ESP10, 400, 420, 447, 461, 466, 457, , 461
ESP10, 396, 413, 441, 454, 463, 459, , 463
ESP10, 399, 416, 445, 459, 468, 461, , 465
ESP10, 409, 424, 450, 465, 473, 463, , 467
ESP10, 406, 421, 447, 463, 472, 465, , 469
ESP10, 411, 423, 450, 468, 476, 467, , 471
ESP10, 415, 429, 454, 470, 477, 470, , 474
ESP10, 414, 432, 453, 468, 478, 472, , 476
ESP10, 417, 434, 453, 468, 479, 474, , 478
ESP10, 414, 430, 449, 466, 477, 476, , 480
ESP10, 422, 438, 460, 473, 481, 478, , 482
ESP10, 411, 430, 451, 467, 477, 480, , 484
ESP10, 417, 437, 458, 472, 480, 482, , 486
ESP10, 424, 443, 465, 475, 481, 484, , 488
ESP10, 431, 449, 472, 480, 483, 486, , 490
ESP10, 434, 447, 472, 480, 483, 489, , 493
ESP10, 440, 448, 474, 481, 485, 491, , 495
ESP10, 436, 447, 470, 478, 482, 493, , 497
ESP10, 438, 453, 472, 479, 484, 495, , 499
ESP10, 437, 452, 471, 479, 483, 497, , 501
ESP10, 459, 474, 488, 494, 497, 499, , 503
ESP10, 460, 477, 490, 495, 499, 501, , 505
ESP10, 455, 473, 489, 493, 497, 503, , 507
ESP10, 460, 472, 488, 495, 497, 506, , 510
ESP10, 458, 471, 485, 492, 494, 508, , 512
ESP10, 465, 477, 489, 495, 498, 510, , 514
ESP10, 468, 482, 493, 497, 501, 512, , 516
ESP10, 471, 485, 494, 498, 503, 514, , 518
ESP10, 474, 485, 494, 499, 503, 516, , 520
ESP10, 475, 486, 496, 500, 505, 518, , 522
ESP10, 476, 486, 496, 500, 504, 520, , 524
ESP10, 479, 487, 496, 500, 504, 522, , 526
ESP10, 481, 486, 495, 500, 503, 525, , 529
ESP10, 484, 490, 497, 502, 505, 527, , 531
ESP10, 483, 489, 496, 501, 503, 529, , 533
ESP10, 486, 491, 499, 504, 506, 531, , 535
ESP10, 489, 494, 502, 507, 508, 533, , 537
ESP10, 488, 493, 502, 506, 508, 535, , 539
ESP10, 491, 494, 502, 506, 509, 537, , 541
ESP10, 493, 496, 504, 508, 510, 539, , 543
ESP10, 496, 500, 508, 510, 513, 541, , 545
ESP10, 495, 497, 506, 509, 511, 544, , 548
ESP10, 499, 501, 509, 512, 513, 546, , 550
ESP10, 500, 503, 510, 512, 514, 548, , 552
ESP10, 502, 506, 512, 513, 515, 550, , 554
ESP10, 501, 505, 512, 514, 515, 552, , 556
ESP10, 500, 506, 512, 514, 515, 554, , 558
ESP10, 502, 509, 514, 515, 517, 556, , 560
ESP10, 502, 508, 512, 514, 515, 558, , 562
ESP10, 501, 508, 511, 513, 514, 560, , 564
ESP10, 501, 508, 511, 513, 514, 563, , 567
ESP10, 501, 508, 512, 513, 514, 565, , 569
ESP10, 506, 511, 513, 515, 516, 567, , 571
ESP10, 507, 510, 513, 515, 515, 569, , 573
ESP10, 507, 510, 514, 515, 516, 571, , 575
ESP10, 505, 508, 511, 513, 513, 573, , 577
ESP10, 507, 509, 512, 513, 514, 575, , 579
ESP10, 503, 505, 508, 509, 509, 577, , 581
ESP10, 505, 507, 509, 510, 511, 579, , 583
ESP10, 504, 507, 508, 509, 510, 582, , 586
ESP10, 504, 507, 509, 510, 510, 584, , 588
ESP10, 504, 508, 509, 509, 510, 586, , 590
ESP10, 504, 508, 509, 510, 510, 588, , 592
ESP10, 505, 508, 509, 510, 510, 590, , 594
ESP10, 503, 507, 508, 509, 509, 592, , 596
ESP10, 506, 508, 509, 510, 510, 594, , 598
ESP10, 510, 511, 513, 513, 514, 596, , 600
ESP10, 510, 511, 512, 513, 513, 599, , 603
ESP10, 509, 511, 512, 513, 513, 601, , 605
ESP10, 509, 511, 512, 512, 513, 603, , 607
ESP10, 508, 510, 511, 512, 512, 605, , 609
ESP10, 509, 511, 512, 513, 513, 607, , 611
ESP10, 509, 511, 512, 512, 513, 609, , 613
ESP10, 507, 509, 511, 511, 511, 611, , 615
ESP10, 508, 510, 511, 512, 512, 613, , 617
ESP10, 508, 510, 511, 512, 512, 615, , 619
ESP10, 491, 493, 495, 495, 496, 618, , 622
ESP10, 489, 491, 492, 493, 494, 620, , 624
ESP10, 489, 491, 493, 494, 494, 622, , 626
ESP10, 488, 490, 492, 493, 493, 624, , 628
ESP10, 487, 489, 491, 492, 492, 626, , 630
ESP10, 489, 491, 493, 493, 494, 628, , 632
ESP10, 501, 502, 502, 503, 503, 630, , 634
ESP10, 501, 502, 503, 503, 503, 632, , 636
ESP10, 501, 502, 503, 503, 503, 634, , 638
ESP10, 501, 502, 503, 503, 503, 637, , 641
ESP10, 501, 502, 503, 503, 503, 639, , 643
ESP10, 500, 501, 502, 502, 503, 641, , 645
ESP10, 486, 487, 489, 490, 490, 643, , 647
ESP10, 498, 498, 500, 500, 501, 645, , 649
ESP10, 497, 498, 499, 499, 499, 647, , 651
ESP10, 496, 498, 499, 499, 499, 649, , 653
ESP10, 494, 495, 497, 497, 498, 651, , 655
ESP10, 494, 495, 497, 497, 498, 653, , 657
ESP10, 493, 495, 496, 497, 497, 656, , 660
ESP10, 494, 496, 497, 497, 498, 658, , 662
ESP10, 493, 495, 496, 497, 497, 660, , 664
ESP10, 492, 494, 495, 496, 497, 662, , 666
ESP10, 492, 494, 495, 496, 496, 664, , 668
ESP10, 492, 494, 496, 496, 497, 666, , 670
ESP10, 493, 495, 497, 497, 498, 668, , 672
ESP10, 492, 494, 495, 496, 496, 670, , 674
ESP10, 492, 493, 494, 495, 496, 672, , 676
ESP10, 493, 494, 495, 496, 497, 675, , 679
ESP10, 491, 492, 493, 494, 494, 677, , 681
ESP10, 490, 492, 493, 493, 494, 679, , 683
ESP10, 491, 492, 493, 494, 494, 681, , 685
ESP10, 491, 492, 493, 493, 494, 683, , 687
ESP10, 491, 492, 492, 493, 494, 685, , 689
ESP10, 490, 491, 492, 493, 493, 687, , 691
ESP10, 490, 491, 492, 493, 493, 689, , 693
ESP10, 489, 490, 491, 492, 492, 692, , 696
ESP10, 489, 489, 490, 491, 491, 694, , 698
ESP10, 489, 490, 490, 491, 491, 696, , 700
ESP10, 489, 489, 490, 491, 491, 698, , 702
ESP10, 492, 493, 493, 494, 494, 700, , 704
ESP10, 486, 487, 488, 488, 489, 702, , 706
ESP10, 486, 487, 488, 489, 489, 704, , 708
ESP10, 485, 486, 487, 488, 488, 706, , 710
ESP10, 486, 486, 487, 488, 489, 708, , 712
ESP10, 485, 486, 486, 487, 488, 711, , 715
ESP10, 485, 486, 487, 487, 488, 713, , 717
ESP10, 485, 486, 487, 487, 488, 715, , 719
ESP10, 486, 486, 487, 488, 489, 717, , 721
ESP10, 487, 487, 488, 489, 490, 719, , 723
ESP10, 486, 487, 488, 489, 490, 721, , 725
ESP10, 488, 489, 490, 491, 491, 723, , 727
ESP10, 488, 490, 490, 491, 492, 725, , 729
ESP10, 489, 490, 491, 491, 492, 727, , 731
ESP10, 489, 490, 490, 491, 492, 730, , 734
ESP10, 488, 489, 490, 490, 491, 732, , 736
ESP10, 489, 490, 490, 491, 491, 734, , 738
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/AMFI1W_SQIN.ESPF10.csv
AMFI1W_SQIN.ESPF0.csv|2026-08-12
AMFI1W_SQIN.ESPF10.csv|2026-08-12
AMFI1W_SQIN.ESPFM.csv|2026-08-12
APR-SEP
SNAKE - AT AMERICAN FALLS DAM
(
AMFI1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-12
Issued:
2026-08-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1554
2461
94
5374
2624
APR-JUL
1281
2165
86
4655
2529
APR-AUG
1415
2309
91
5089
2531
JAN-SEP
2487
3622
97
6499
3745
JAN-JUL
2212
3294
90
5780
3651
OCT-SEP
3502
4704
96
7630
4883
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/watersupply/AMFI1W_SQIN.ESPF10.csv
AMFI1W_SQIN.ESPF0.csv|2026-08-12
AMFI1W_SQIN.ESPF10.csv|2026-08-12
AMFI1W_SQIN.ESPFM.csv|2026-08-12
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
