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Archive:
Water Year
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SNAKE - NEAR HEISE
(
HEII1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
2726
2733
71
2751
3849
APR-JUL
2281
2281
69
2281
3308
APR-AUG
2533
2534
70
2536
3605
JAN-SEP
3409
3416
77
3434
4413
JAN-JUL
2964
2964
77
2964
3871
OCT-SEP
4043
4050
80
4068
5050
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
2725
2735
71
2751
3849
APR-JUL
2281
2281
69
2281
3308
APR-AUG
2532
2534
70
2537
3605
JAN-SEP
3408
3419
77
3434
4413
JAN-JUL
2964
2964
77
2964
3871
OCT-SEP
4042
4053
80
4068
5050
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
2725
2737
71
2763
3849
APR-JUL
2281
2281
69
2281
3308
APR-AUG
2532
2535
70
2546
3605
JAN-SEP
3408
3420
78
3446
4413
JAN-JUL
2964
2964
77
2964
3871
OCT-SEP
4042
4054
80
4080
5050
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 231, 302, 392, 422, 462, 70, , 74
ESP10, 227, 296, 386, 417, 457, 72, , 76
ESP10, 231, 298, 386, 418, 460, 74, , 78
ESP10, 231, 299, 386, 417, 459, 76, , 80
ESP10, 236, 305, 388, 419, 460, 78, , 82
ESP10, 238, 303, 386, 416, 458, 81, , 85
ESP10, 238, 301, 386, 414, 456, 83, , 87
ESP10, 235, 297, 384, 411, 455, 85, , 89
ESP10, 232, 294, 385, 409, 454, 87, , 91
ESP10, 221, 286, 376, 400, 445, 89, , 93
ESP10, 218, 283, 373, 397, 442, 91, , 95
ESP10, 219, 283, 372, 398, 444, 93, , 97
ESP10, 227, 288, 377, 405, 449, 95, , 99
ESP10, 230, 289, 378, 406, 451, 97, , 101
ESP10, 232, 291, 382, 410, 453, 99, , 103
ESP10, 225, 282, 374, 403, 447, 102, , 106
ESP10, 216, 274, 367, 397, 441, 104, , 108
ESP10, 214, 273, 365, 397, 439, 106, , 110
ESP10, 222, 282, 374, 406, 446, 108, , 112
ESP10, 222, 281, 374, 408, 445, 110, , 114
ESP10, 219, 278, 372, 405, 444, 112, , 116
ESP10, 226, 292, 382, 411, 450, 114, , 118
ESP10, 226, 295, 383, 411, 450, 116, , 120
ESP10, 229, 300, 387, 413, 452, 118, , 122
ESP10, 235, 305, 395, 417, 456, 120, , 124
ESP10, 235, 305, 392, 414, 454, 122, , 126
ESP10, 241, 314, 394, 416, 455, 125, , 129
ESP10, 249, 319, 396, 417, 460, 127, , 131
ESP10, 253, 318, 398, 417, 460, 129, , 133
ESP10, 240, 304, 386, 406, 449, 131, , 135
ESP10, 241, 304, 386, 407, 452, 133, , 137
ESP10, 247, 307, 391, 410, 456, 135, , 139
ESP10, 255, 316, 396, 416, 463, 137, , 141
ESP10, 251, 313, 392, 412, 464, 139, , 143
ESP10, 250, 312, 393, 417, 464, 141, , 145
ESP10, 250, 314, 395, 417, 467, 143, , 147
ESP10, 250, 317, 393, 415, 473, 145, , 149
ESP10, 245, 311, 388, 409, 469, 148, , 152
ESP10, 243, 308, 386, 412, 467, 150, , 154
ESP10, 251, 317, 395, 419, 473, 152, , 156
ESP10, 257, 323, 399, 422, 476, 154, , 158
ESP10, 254, 316, 394, 418, 471, 156, , 160
ESP10, 259, 320, 397, 424, 473, 158, , 162
ESP10, 267, 322, 401, 430, 475, 160, , 164
ESP10, 278, 323, 400, 430, 475, 162, , 166
ESP10, 278, 322, 397, 429, 472, 164, , 168
ESP10, 285, 327, 403, 434, 478, 166, , 170
ESP10, 288, 330, 406, 435, 482, 169, , 173
ESP10, 287, 330, 406, 436, 482, 171, , 175
ESP10, 282, 326, 401, 432, 479, 173, , 177
ESP10, 284, 328, 405, 437, 480, 175, , 179
ESP10, 282, 330, 404, 434, 476, 177, , 181
ESP10, 293, 336, 407, 437, 478, 179, , 183
ESP10, 297, 344, 410, 440, 480, 181, , 185
ESP10, 295, 351, 410, 439, 479, 183, , 187
ESP10, 296, 352, 411, 443, 479, 185, , 189
ESP10, 287, 345, 405, 444, 472, 187, , 191
ESP10, 292, 349, 410, 446, 475, 189, , 193
ESP10, 294, 351, 412, 448, 475, 192, , 196
ESP10, 281, 334, 397, 432, 461, 194, , 198
ESP10, 268, 318, 383, 420, 447, 196, , 200
ESP10, 281, 328, 395, 428, 457, 198, , 202
ESP10, 272, 320, 387, 419, 450, 200, , 204
ESP10, 266, 313, 383, 416, 445, 202, , 206
ESP10, 272, 315, 384, 422, 446, 204, , 208
ESP10, 270, 309, 377, 415, 439, 206, , 210
ESP10, 263, 303, 371, 409, 433, 208, , 212
ESP10, 277, 318, 383, 422, 449, 210, , 214
ESP10, 284, 323, 388, 427, 452, 212, , 216
ESP10, 275, 315, 380, 420, 445, 215, , 219
ESP10, 267, 304, 369, 410, 437, 217, , 221
ESP10, 259, 292, 360, 400, 427, 219, , 223
ESP10, 247, 280, 351, 390, 419, 221, , 225
ESP10, 250, 282, 353, 396, 422, 223, , 227
ESP10, 252, 283, 355, 397, 423, 225, , 229
ESP10, 246, 272, 346, 387, 414, 227, , 231
ESP10, 242, 261, 337, 379, 410, 229, , 233
ESP10, 241, 263, 334, 378, 408, 231, , 235
ESP10, 242, 264, 336, 378, 407, 233, , 237
ESP10, 249, 264, 338, 378, 407, 236, , 240
ESP10, 251, 267, 339, 380, 411, 238, , 242
ESP10, 257, 272, 344, 385, 415, 240, , 244
ESP10, 264, 280, 349, 392, 419, 242, , 246
ESP10, 260, 277, 346, 390, 416, 244, , 248
ESP10, 252, 275, 338, 385, 411, 246, , 250
ESP10, 253, 276, 340, 388, 415, 248, , 252
ESP10, 252, 275, 339, 387, 419, 250, , 254
ESP10, 258, 282, 346, 393, 424, 252, , 256
ESP10, 258, 281, 344, 393, 422, 254, , 258
ESP10, 259, 280, 342, 392, 420, 256, , 260
ESP10, 255, 276, 337, 384, 412, 259, , 263
ESP10, 249, 278, 336, 378, 406, 261, , 265
ESP10, 256, 288, 337, 378, 407, 263, , 267
ESP10, 246, 277, 325, 367, 397, 265, , 269
ESP10, 241, 270, 321, 362, 392, 267, , 271
ESP10, 241, 269, 321, 362, 390, 269, , 273
ESP10, 246, 271, 324, 364, 392, 271, , 275
ESP10, 247, 271, 323, 363, 393, 273, , 277
ESP10, 250, 275, 325, 365, 395, 275, , 279
ESP10, 250, 276, 327, 365, 399, 277, , 281
ESP10, 250, 277, 333, 365, 400, 279, , 283
ESP10, 250, 279, 334, 366, 400, 282, , 286
ESP10, 251, 281, 334, 367, 400, 284, , 288
ESP10, 254, 282, 333, 365, 397, 286, , 290
ESP10, 259, 293, 339, 370, 401, 288, , 292
ESP10, 259, 292, 340, 371, 400, 290, , 294
ESP10, 254, 293, 335, 368, 396, 292, , 296
ESP10, 262, 301, 340, 373, 400, 294, , 298
ESP10, 261, 305, 339, 376, 399, 296, , 300
ESP10, 268, 313, 344, 380, 404, 298, , 302
ESP10, 266, 311, 343, 378, 401, 300, , 304
ESP10, 270, 314, 345, 379, 402, 303, , 307
ESP10, 271, 320, 346, 380, 404, 305, , 309
ESP10, 272, 321, 347, 383, 406, 307, , 311
ESP10, 275, 323, 346, 383, 408, 309, , 313
ESP10, 280, 326, 347, 386, 410, 311, , 315
ESP10, 280, 326, 348, 386, 411, 313, , 317
ESP10, 283, 325, 349, 385, 412, 315, , 319
ESP10, 289, 325, 353, 386, 412, 317, , 321
ESP10, 296, 334, 356, 389, 414, 319, , 323
ESP10, 302, 331, 353, 392, 411, 321, , 325
ESP10, 300, 328, 354, 393, 409, 323, , 327
ESP10, 301, 329, 359, 394, 410, 326, , 330
ESP10, 293, 322, 352, 387, 403, 328, , 332
ESP10, 295, 324, 356, 389, 405, 330, , 334
ESP10, 296, 324, 361, 389, 406, 332, , 336
ESP10, 300, 329, 363, 391, 408, 334, , 338
ESP10, 302, 332, 365, 393, 408, 336, , 340
ESP10, 302, 329, 364, 392, 407, 338, , 342
ESP10, 307, 326, 361, 389, 403, 340, , 344
ESP10, 303, 322, 357, 382, 397, 342, , 346
ESP10, 301, 324, 356, 380, 397, 344, , 348
ESP10, 303, 328, 358, 383, 403, 346, , 350
ESP10, 303, 332, 361, 385, 405, 349, , 353
ESP10, 311, 340, 368, 393, 412, 351, , 355
ESP10, 311, 341, 369, 393, 413, 353, , 357
ESP10, 307, 338, 365, 391, 411, 355, , 359
ESP10, 302, 331, 358, 386, 407, 357, , 361
ESP10, 295, 326, 355, 380, 401, 359, , 363
ESP10, 303, 335, 362, 387, 407, 361, , 365
ESP10, 300, 331, 360, 384, 403, 363, , 367
ESP10, 296, 330, 359, 381, 398, 365, , 369
ESP10, 310, 346, 373, 394, 410, 367, , 371
ESP10, 308, 342, 366, 390, 405, 370, , 374
ESP10, 310, 344, 367, 392, 405, 372, , 376
ESP10, 309, 342, 365, 397, 404, 374, , 378
ESP10, 307, 342, 365, 398, 403, 376, , 380
ESP10, 304, 341, 363, 394, 401, 378, , 382
ESP10, 296, 335, 360, 385, 394, 380, , 384
ESP10, 289, 327, 357, 376, 386, 382, , 386
ESP10, 301, 340, 370, 387, 397, 384, , 388
ESP10, 301, 343, 369, 387, 397, 386, , 390
ESP10, 305, 347, 373, 391, 401, 388, , 392
ESP10, 302, 345, 372, 391, 400, 390, , 394
ESP10, 311, 348, 374, 394, 402, 393, , 397
ESP10, 307, 346, 371, 390, 398, 395, , 399
ESP10, 306, 347, 371, 389, 398, 397, , 401
ESP10, 302, 345, 367, 386, 394, 399, , 403
ESP10, 306, 347, 372, 389, 400, 401, , 405
ESP10, 314, 355, 381, 397, 408, 403, , 407
ESP10, 310, 349, 376, 393, 403, 405, , 409
ESP10, 303, 344, 368, 387, 396, 407, , 411
ESP10, 316, 356, 380, 398, 410, 409, , 413
ESP10, 318, 361, 385, 401, 412, 411, , 415
ESP10, 322, 365, 390, 404, 414, 413, , 417
ESP10, 324, 366, 391, 404, 415, 416, , 420
ESP10, 322, 364, 390, 402, 416, 418, , 422
ESP10, 330, 370, 396, 408, 420, 420, , 424
ESP10, 337, 375, 398, 410, 423, 422, , 426
ESP10, 341, 376, 398, 414, 423, 424, , 428
ESP10, 347, 377, 402, 414, 424, 426, , 430
ESP10, 350, 377, 401, 416, 426, 428, , 432
ESP10, 353, 376, 399, 417, 424, 430, , 434
ESP10, 348, 369, 392, 409, 415, 432, , 436
ESP10, 343, 366, 390, 405, 414, 434, , 438
ESP10, 345, 367, 390, 405, 415, 437, , 441
ESP10, 349, 367, 390, 406, 417, 439, , 443
ESP10, 348, 366, 389, 406, 416, 441, , 445
ESP10, 348, 367, 390, 408, 418, 443, , 447
ESP10, 349, 368, 394, 406, 417, 445, , 449
ESP10, 348, 367, 392, 405, 416, 447, , 451
ESP10, 344, 365, 389, 404, 412, 449, , 453
ESP10, 342, 364, 387, 403, 411, 451, , 455
ESP10, 345, 366, 389, 403, 412, 453, , 457
ESP10, 345, 360, 385, 398, 409, 455, , 459
ESP10, 349, 363, 389, 403, 412, 457, , 461
ESP10, 357, 370, 393, 408, 419, 460, , 464
ESP10, 352, 366, 390, 406, 417, 462, , 466
ESP10, 356, 367, 391, 410, 418, 464, , 468
ESP10, 357, 370, 393, 410, 420, 466, , 470
ESP10, 356, 369, 390, 409, 420, 468, , 472
ESP10, 365, 379, 398, 416, 427, 470, , 474
ESP10, 362, 375, 395, 413, 425, 472, , 476
ESP10, 368, 382, 403, 419, 431, 474, , 478
ESP10, 358, 375, 394, 411, 422, 476, , 480
ESP10, 362, 381, 401, 417, 427, 478, , 482
ESP10, 369, 387, 408, 423, 432, 480, , 484
ESP10, 374, 391, 414, 428, 435, 483, , 487
ESP10, 377, 391, 415, 426, 433, 485, , 489
ESP10, 382, 391, 414, 429, 434, 487, , 491
ESP10, 378, 388, 410, 423, 429, 489, , 493
ESP10, 379, 391, 412, 424, 429, 491, , 495
ESP10, 376, 389, 409, 422, 427, 493, , 497
ESP10, 384, 396, 415, 428, 433, 495, , 499
ESP10, 386, 399, 417, 430, 434, 497, , 501
ESP10, 381, 396, 413, 425, 430, 499, , 503
ESP10, 386, 396, 414, 427, 431, 501, , 505
ESP10, 386, 401, 415, 427, 433, 504, , 508
ESP10, 394, 409, 422, 435, 440, 506, , 510
ESP10, 398, 413, 426, 438, 443, 508, , 512
ESP10, 401, 415, 430, 439, 446, 510, , 514
ESP10, 403, 416, 432, 441, 448, 512, , 516
ESP10, 403, 416, 433, 440, 447, 514, , 518
ESP10, 406, 418, 434, 442, 448, 516, , 520
ESP10, 409, 420, 435, 444, 449, 518, , 522
ESP10, 412, 420, 435, 443, 449, 520, , 524
ESP10, 414, 423, 436, 444, 449, 522, , 526
ESP10, 411, 420, 434, 441, 445, 524, , 528
ESP10, 415, 423, 438, 446, 448, 527, , 531
ESP10, 417, 425, 440, 447, 451, 529, , 533
ESP10, 416, 423, 440, 446, 450, 531, , 535
ESP10, 418, 425, 439, 446, 450, 533, , 537
ESP10, 422, 427, 442, 447, 451, 535, , 539
ESP10, 424, 429, 442, 449, 452, 537, , 541
ESP10, 421, 425, 441, 446, 449, 539, , 543
ESP10, 426, 430, 444, 449, 452, 541, , 545
ESP10, 429, 433, 446, 452, 454, 543, , 547
ESP10, 432, 439, 450, 454, 456, 545, , 549
ESP10, 429, 436, 448, 453, 454, 547, , 551
ESP10, 427, 435, 446, 451, 452, 550, , 554
ESP10, 428, 440, 447, 452, 454, 552, , 556
ESP10, 428, 437, 445, 448, 451, 554, , 558
ESP10, 426, 436, 443, 446, 449, 556, , 560
ESP10, 426, 436, 442, 446, 448, 558, , 562
ESP10, 427, 437, 443, 446, 448, 560, , 564
ESP10, 433, 441, 446, 449, 450, 562, , 566
ESP10, 434, 439, 445, 448, 449, 564, , 568
ESP10, 432, 437, 443, 445, 446, 566, , 570
ESP10, 427, 432, 437, 440, 441, 568, , 572
ESP10, 429, 434, 438, 441, 442, 571, , 575
ESP10, 427, 432, 436, 438, 439, 573, , 577
ESP10, 431, 435, 439, 441, 442, 575, , 579
ESP10, 431, 435, 438, 440, 440, 577, , 581
ESP10, 432, 436, 439, 440, 441, 579, , 583
ESP10, 430, 436, 438, 439, 440, 581, , 585
ESP10, 429, 435, 438, 439, 439, 583, , 587
ESP10, 431, 435, 438, 439, 439, 585, , 589
ESP10, 429, 433, 435, 436, 437, 587, , 591
ESP10, 430, 434, 436, 437, 437, 589, , 593
ESP10, 434, 436, 438, 439, 440, 591, , 595
ESP10, 434, 436, 438, 439, 439, 594, , 598
ESP10, 432, 434, 436, 437, 437, 596, , 600
ESP10, 432, 434, 436, 437, 437, 598, , 602
ESP10, 432, 434, 436, 437, 437, 600, , 604
ESP10, 433, 435, 437, 438, 438, 602, , 606
ESP10, 432, 434, 436, 437, 437, 604, , 608
ESP10, 430, 433, 434, 435, 436, 606, , 610
ESP10, 431, 434, 435, 436, 437, 608, , 612
ESP10, 431, 433, 435, 436, 436, 610, , 614
ESP10, 431, 433, 435, 435, 436, 612, , 616
ESP10, 430, 431, 433, 433, 434, 614, , 618
ESP10, 430, 432, 433, 434, 434, 617, , 621
ESP10, 429, 431, 432, 433, 433, 619, , 623
ESP10, 428, 430, 431, 432, 432, 621, , 625
ESP10, 427, 429, 430, 431, 431, 623, , 627
ESP10, 427, 429, 430, 430, 431, 625, , 629
ESP10, 427, 428, 430, 430, 430, 627, , 631
ESP10, 427, 428, 429, 430, 430, 629, , 633
ESP10, 427, 428, 429, 430, 430, 631, , 635
ESP10, 425, 427, 428, 429, 429, 633, , 637
ESP10, 424, 426, 427, 428, 428, 635, , 639
ESP10, 424, 425, 426, 426, 427, 638, , 642
ESP10, 424, 425, 426, 427, 427, 640, , 644
ESP10, 424, 425, 426, 427, 427, 642, , 646
ESP10, 424, 425, 426, 427, 427, 644, , 648
ESP10, 421, 422, 423, 424, 425, 646, , 650
ESP10, 421, 422, 423, 424, 424, 648, , 652
ESP10, 421, 422, 423, 424, 424, 650, , 654
ESP10, 422, 423, 424, 424, 425, 652, , 656
ESP10, 421, 422, 423, 424, 424, 654, , 658
ESP10, 421, 422, 423, 424, 424, 656, , 660
ESP10, 420, 421, 422, 423, 423, 658, , 662
ESP10, 420, 421, 423, 423, 424, 661, , 665
ESP10, 419, 421, 422, 423, 423, 663, , 667
ESP10, 420, 421, 423, 423, 424, 665, , 669
ESP10, 419, 421, 422, 423, 423, 667, , 671
ESP10, 420, 421, 422, 423, 423, 669, , 673
ESP10, 419, 421, 422, 423, 423, 671, , 675
ESP10, 420, 422, 423, 423, 424, 673, , 677
ESP10, 420, 422, 423, 423, 423, 675, , 679
ESP10, 419, 421, 422, 423, 423, 677, , 681
ESP10, 421, 421, 422, 423, 423, 679, , 683
ESP10, 420, 421, 422, 422, 423, 681, , 685
ESP10, 420, 421, 421, 422, 422, 684, , 688
ESP10, 418, 419, 420, 420, 421, 686, , 690
ESP10, 418, 418, 419, 420, 420, 688, , 692
ESP10, 418, 419, 419, 420, 420, 690, , 694
ESP10, 418, 418, 419, 420, 420, 692, , 696
ESP10, 421, 421, 422, 422, 423, 694, , 698
ESP10, 420, 421, 421, 422, 422, 696, , 700
ESP10, 420, 420, 421, 422, 422, 698, , 702
ESP10, 419, 419, 420, 420, 421, 700, , 704
ESP10, 419, 420, 420, 421, 421, 702, , 706
ESP10, 418, 419, 419, 420, 420, 705, , 709
ESP10, 418, 419, 420, 420, 420, 707, , 711
ESP10, 418, 419, 420, 420, 420, 709, , 713
ESP10, 418, 419, 420, 420, 420, 711, , 715
ESP10, 419, 419, 420, 420, 421, 713, , 717
ESP10, 418, 419, 420, 420, 420, 715, , 719
ESP10, 418, 419, 420, 420, 420, 717, , 721
ESP10, 418, 419, 419, 420, 420, 719, , 723
ESP10, 418, 419, 419, 420, 420, 721, , 725
ESP10, 418, 419, 420, 420, 420, 723, , 727
ESP10, 418, 419, 419, 420, 420, 725, , 729
ESP10, 418, 419, 420, 420, 420, 728, , 732
ESP10, 418, 419, 419, 420, 420, 730, , 734
ESP10, 418, 418, 419, 419, 420, 732, , 736
ESP10, 418, 418, 419, 419, 419, 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/HEII1W_SQIN.ESPF10.csv
HEII1W_SQIN.ESPF0.csv|2026-08-15
HEII1W_SQIN.ESPF10.csv|2026-08-15
HEII1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
SNAKE - NEAR HEISE
(
HEII1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
2223
3272
85
5681
3849
APR-JUL
1868
2721
82
4789
3308
APR-AUG
2053
3017
84
5326
3605
JAN-SEP
2707
3752
85
6209
4413
JAN-JUL
2363
3238
84
5289
3871
OCT-SEP
3174
4256
84
6752
5050
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/HEII1W_SQIN.ESPF10.csv
HEII1W_SQIN.ESPF0.csv|2026-08-15
HEII1W_SQIN.ESPF10.csv|2026-08-15
HEII1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
