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Water Year
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SNAKE - LOWER GRANITE DAM
(
LGDW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-05-08
Issued:
2026-05-08
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
15166
15932
72
17720
22232
APR-JUL
13093
13733
69
15392
19946
APR-AUG
14125
14863
70
16535
21121
JAN-SEP
22668
23433
79
25222
29736
JAN-JUL
20595
21234
77
22893
27450
OCT-SEP
27904
28670
84
30458
34287
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-05-08
Issued:
2026-05-08
Hide Forecast
APR-SEP
15377
16151
73
18283
22232
APR-JUL
13279
13853
69
15954
19946
APR-AUG
14307
15011
71
17088
21121
JAN-SEP
22878
23652
80
25784
29736
JAN-JUL
20781
21354
78
23456
27450
OCT-SEP
28114
28889
84
31021
34287
Reference
ESP with 0 Days QPF
Ensemble:
2026-05-08
Issued:
2026-05-08
Hide Forecast
APR-SEP
15537
16422
74
19394
22232
APR-JUL
13466
14170
71
17019
19946
APR-AUG
14488
15293
72
18226
21121
JAN-SEP
23038
23923
80
26895
29736
JAN-JUL
20967
21672
79
24521
27450
OCT-SEP
28275
29160
85
32132
34287
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 252, 324, 378, 416, 475, 71, , 75
ESP10, 247, 323, 385, 425, 475, 74, , 78
ESP10, 234, 311, 375, 414, 468, 77, , 81
ESP10, 233, 310, 377, 413, 469, 80, , 84
ESP10, 239, 314, 376, 416, 471, 83, , 87
ESP10, 233, 313, 377, 415, 469, 86, , 90
ESP10, 243, 317, 381, 417, 472, 89, , 93
ESP10, 239, 318, 380, 421, 475, 92, , 96
ESP10, 241, 318, 382, 421, 473, 95, , 99
ESP10, 229, 309, 378, 417, 469, 98, , 102
ESP10, 223, 303, 370, 412, 465, 101, , 105
ESP10, 230, 310, 382, 417, 470, 104, , 108
ESP10, 228, 308, 379, 416, 472, 107, , 111
ESP10, 228, 309, 378, 417, 471, 110, , 114
ESP10, 229, 304, 374, 415, 467, 113, , 117
ESP10, 213, 293, 364, 407, 458, 117, , 121
ESP10, 210, 286, 364, 407, 450, 120, , 124
ESP10, 212, 287, 366, 411, 453, 123, , 127
ESP10, 214, 292, 371, 416, 459, 126, , 130
ESP10, 219, 295, 375, 418, 460, 129, , 133
ESP10, 211, 285, 364, 410, 455, 132, , 136
ESP10, 218, 293, 374, 414, 461, 135, , 139
ESP10, 220, 294, 367, 413, 459, 138, , 142
ESP10, 228, 306, 374, 419, 466, 141, , 145
ESP10, 240, 313, 381, 424, 468, 144, , 148
ESP10, 236, 308, 375, 419, 468, 147, , 151
ESP10, 245, 307, 381, 419, 467, 150, , 154
ESP10, 249, 321, 382, 421, 470, 153, , 157
ESP10, 249, 314, 378, 419, 467, 156, , 160
ESP10, 229, 298, 363, 412, 459, 159, , 163
ESP10, 231, 295, 361, 411, 457, 162, , 166
ESP10, 238, 308, 361, 409, 458, 165, , 169
ESP10, 259, 318, 364, 413, 463, 168, , 172
ESP10, 247, 311, 367, 418, 469, 171, , 175
ESP10, 251, 316, 371, 421, 472, 174, , 178
ESP10, 253, 329, 369, 421, 472, 177, , 181
ESP10, 251, 332, 375, 419, 471, 180, , 184
ESP10, 244, 323, 365, 417, 467, 183, , 187
ESP10, 249, 325, 367, 418, 469, 186, , 190
ESP10, 245, 330, 372, 419, 469, 189, , 193
ESP10, 258, 344, 380, 426, 476, 192, , 196
ESP10, 256, 347, 384, 430, 479, 195, , 199
ESP10, 259, 347, 381, 431, 480, 198, , 202
ESP10, 269, 352, 386, 436, 484, 201, , 205
ESP10, 272, 351, 389, 439, 485, 204, , 208
ESP10, 275, 348, 391, 437, 488, 207, , 211
ESP10, 274, 357, 394, 438, 490, 210, , 214
ESP10, 283, 364, 401, 443, 496, 214, , 218
ESP10, 293, 363, 398, 445, 494, 217, , 221
ESP10, 293, 356, 396, 444, 493, 220, , 224
ESP10, 294, 353, 395, 441, 490, 223, , 227
ESP10, 291, 355, 389, 439, 486, 226, , 230
ESP10, 295, 368, 393, 441, 487, 229, , 233
ESP10, 302, 374, 398, 446, 490, 232, , 236
ESP10, 299, 370, 392, 443, 486, 235, , 239
ESP10, 301, 373, 397, 446, 488, 238, , 242
ESP10, 296, 354, 393, 434, 481, 241, , 245
ESP10, 294, 365, 397, 441, 481, 244, , 248
ESP10, 301, 367, 400, 446, 486, 247, , 251
ESP10, 296, 351, 390, 431, 476, 250, , 254
ESP10, 292, 337, 378, 428, 463, 253, , 257
ESP10, 299, 353, 387, 432, 470, 256, , 260
ESP10, 293, 344, 382, 430, 462, 259, , 263
ESP10, 277, 327, 370, 421, 453, 262, , 266
ESP10, 285, 332, 374, 424, 460, 265, , 269
ESP10, 266, 322, 363, 415, 451, 268, , 272
ESP10, 269, 325, 368, 417, 456, 271, , 275
ESP10, 288, 335, 379, 426, 463, 274, , 278
ESP10, 294, 340, 385, 433, 465, 277, , 281
ESP10, 286, 338, 377, 425, 459, 280, , 284
ESP10, 278, 325, 372, 424, 457, 283, , 287
ESP10, 271, 314, 364, 417, 450, 286, , 290
ESP10, 263, 298, 360, 415, 446, 289, , 293
ESP10, 260, 310, 360, 419, 450, 292, , 296
ESP10, 263, 312, 362, 420, 451, 295, , 299
ESP10, 260, 293, 358, 413, 446, 298, , 302
ESP10, 250, 291, 357, 405, 444, 301, , 305
ESP10, 264, 303, 365, 412, 449, 304, , 308
ESP10, 284, 313, 374, 426, 457, 308, , 312
ESP10, 294, 310, 366, 419, 453, 311, , 315
ESP10, 295, 317, 363, 423, 454, 314, , 318
ESP10, 296, 318, 370, 429, 456, 317, , 321
ESP10, 302, 325, 374, 427, 460, 320, , 324
ESP10, 302, 324, 373, 430, 462, 323, , 327
ESP10, 298, 315, 364, 426, 458, 326, , 330
ESP10, 297, 313, 368, 425, 460, 329, , 333
ESP10, 302, 317, 370, 426, 461, 332, , 336
ESP10, 304, 321, 377, 428, 465, 335, , 339
ESP10, 301, 328, 379, 427, 466, 338, , 342
ESP10, 312, 329, 377, 425, 463, 341, , 345
ESP10, 299, 328, 382, 423, 461, 344, , 348
ESP10, 297, 327, 381, 422, 460, 347, , 351
ESP10, 290, 322, 375, 417, 451, 350, , 354
ESP10, 290, 324, 372, 415, 454, 353, , 357
ESP10, 289, 322, 368, 417, 453, 356, , 360
ESP10, 287, 325, 362, 418, 450, 359, , 363
ESP10, 283, 321, 364, 416, 446, 362, , 366
ESP10, 290, 324, 365, 420, 446, 365, , 369
ESP10, 292, 324, 366, 420, 446, 368, , 372
ESP10, 295, 331, 367, 422, 447, 371, , 375
ESP10, 306, 327, 374, 422, 447, 374, , 378
ESP10, 312, 333, 372, 423, 450, 377, , 381
ESP10, 318, 334, 380, 423, 450, 380, , 384
ESP10, 319, 335, 373, 423, 449, 383, , 387
ESP10, 322, 342, 379, 424, 451, 386, , 390
ESP10, 323, 343, 377, 424, 448, 389, , 393
ESP10, 318, 342, 373, 423, 445, 392, , 396
ESP10, 324, 350, 381, 426, 447, 395, , 399
ESP10, 328, 351, 382, 425, 449, 398, , 402
ESP10, 332, 358, 383, 429, 450, 401, , 405
ESP10, 330, 356, 385, 428, 456, 405, , 409
ESP10, 337, 365, 395, 434, 461, 408, , 412
ESP10, 345, 369, 396, 435, 464, 411, , 415
ESP10, 348, 373, 402, 438, 466, 414, , 418
ESP10, 353, 376, 402, 439, 468, 417, , 421
ESP10, 347, 374, 405, 439, 468, 420, , 424
ESP10, 349, 375, 406, 440, 468, 423, , 427
ESP10, 351, 381, 408, 439, 467, 426, , 430
ESP10, 353, 383, 408, 441, 467, 429, , 433
ESP10, 358, 388, 412, 442, 468, 432, , 436
ESP10, 347, 380, 405, 437, 462, 435, , 439
ESP10, 356, 388, 413, 444, 467, 438, , 442
ESP10, 357, 388, 412, 444, 468, 441, , 445
ESP10, 353, 376, 410, 440, 463, 444, , 448
ESP10, 357, 377, 410, 443, 463, 447, , 451
ESP10, 359, 383, 414, 443, 470, 450, , 454
ESP10, 364, 387, 413, 445, 469, 453, , 457
ESP10, 367, 384, 416, 444, 468, 456, , 460
ESP10, 366, 385, 411, 440, 466, 459, , 463
ESP10, 365, 387, 412, 440, 460, 462, , 466
ESP10, 349, 379, 408, 433, 456, 465, , 469
ESP10, 350, 379, 409, 432, 458, 468, , 472
ESP10, 349, 383, 406, 434, 458, 471, , 475
ESP10, 359, 387, 414, 437, 462, 474, , 478
ESP10, 369, 388, 409, 439, 464, 477, , 481
ESP10, 365, 384, 406, 439, 462, 480, , 484
ESP10, 361, 381, 402, 433, 456, 483, , 487
ESP10, 352, 378, 401, 431, 459, 486, , 490
ESP10, 342, 374, 392, 426, 453, 489, , 493
ESP10, 354, 382, 405, 434, 462, 492, , 496
ESP10, 349, 378, 402, 432, 461, 495, , 499
ESP10, 355, 388, 412, 436, 465, 498, , 502
ESP10, 374, 387, 417, 441, 466, 502, , 506
ESP10, 373, 385, 419, 440, 468, 505, , 509
ESP10, 371, 391, 416, 442, 467, 508, , 512
ESP10, 371, 395, 416, 445, 470, 511, , 515
ESP10, 375, 395, 420, 445, 471, 514, , 518
ESP10, 366, 387, 415, 436, 462, 517, , 521
ESP10, 358, 379, 420, 433, 457, 520, , 524
ESP10, 347, 373, 408, 430, 453, 523, , 527
ESP10, 355, 390, 421, 437, 457, 526, , 530
ESP10, 353, 389, 421, 438, 455, 529, , 533
ESP10, 359, 384, 418, 437, 454, 532, , 536
ESP10, 356, 376, 412, 430, 446, 535, , 539
ESP10, 362, 382, 412, 434, 449, 538, , 542
ESP10, 354, 383, 412, 431, 445, 541, , 545
ESP10, 356, 384, 411, 432, 445, 544, , 548
ESP10, 350, 383, 407, 430, 445, 547, , 551
ESP10, 357, 382, 405, 429, 446, 550, , 554
ESP10, 367, 390, 413, 436, 449, 553, , 557
ESP10, 358, 382, 403, 431, 443, 556, , 560
ESP10, 343, 372, 392, 422, 436, 559, , 563
ESP10, 360, 391, 406, 437, 448, 562, , 566
ESP10, 367, 392, 410, 439, 453, 565, , 569
ESP10, 368, 396, 417, 440, 455, 568, , 572
ESP10, 367, 391, 414, 436, 452, 571, , 575
ESP10, 363, 386, 409, 432, 448, 574, , 578
ESP10, 365, 394, 414, 435, 451, 577, , 581
ESP10, 373, 399, 420, 441, 454, 580, , 584
ESP10, 380, 402, 426, 450, 457, 583, , 587
ESP10, 375, 405, 425, 449, 456, 586, , 590
ESP10, 379, 408, 426, 451, 456, 589, , 593
ESP10, 380, 405, 425, 450, 454, 592, , 596
ESP10, 366, 388, 415, 437, 443, 596, , 600
ESP10, 361, 382, 410, 426, 436, 599, , 603
ESP10, 363, 383, 413, 430, 440, 602, , 606
ESP10, 361, 378, 407, 425, 432, 605, , 609
ESP10, 362, 379, 408, 425, 435, 608, , 612
ESP10, 366, 382, 414, 428, 439, 611, , 615
ESP10, 367, 384, 413, 429, 438, 614, , 618
ESP10, 373, 387, 419, 434, 440, 617, , 621
ESP10, 373, 388, 423, 434, 443, 620, , 624
ESP10, 371, 386, 416, 431, 439, 623, , 627
ESP10, 378, 391, 424, 437, 444, 626, , 630
ESP10, 375, 392, 420, 434, 443, 629, , 633
ESP10, 374, 389, 419, 434, 444, 632, , 636
ESP10, 376, 386, 417, 434, 444, 635, , 639
ESP10, 378, 392, 423, 436, 445, 638, , 642
ESP10, 369, 381, 412, 427, 439, 641, , 645
ESP10, 363, 378, 408, 421, 431, 644, , 648
ESP10, 359, 377, 405, 418, 429, 647, , 651
ESP10, 358, 377, 404, 417, 430, 650, , 654
ESP10, 353, 370, 397, 408, 422, 653, , 657
ESP10, 362, 374, 404, 413, 425, 656, , 660
ESP10, 357, 375, 400, 409, 421, 659, , 663
ESP10, 374, 386, 412, 422, 432, 662, , 666
ESP10, 369, 380, 407, 420, 428, 665, , 669
ESP10, 380, 389, 416, 427, 434, 668, , 672
ESP10, 377, 389, 413, 426, 433, 671, , 675
ESP10, 377, 390, 411, 423, 431, 674, , 678
ESP10, 376, 392, 413, 422, 430, 677, , 681
ESP10, 376, 394, 414, 422, 430, 680, , 684
ESP10, 378, 399, 416, 424, 431, 683, , 687
ESP10, 386, 407, 422, 431, 437, 686, , 690
ESP10, 385, 408, 421, 430, 437, 689, , 693
ESP10, 387, 409, 423, 431, 437, 693, , 697
ESP10, 385, 409, 424, 430, 436, 696, , 700
ESP10, 386, 410, 427, 431, 436, 699, , 703
ESP10, 388, 412, 427, 432, 439, 702, , 706
ESP10, 387, 411, 427, 432, 438, 705, , 709
ESP10, 386, 412, 427, 432, 437, 708, , 712
ESP10, 393, 415, 427, 434, 439, 711, , 715
ESP10, 398, 416, 429, 435, 440, 714, , 718
ESP10, 398, 416, 429, 435, 440, 717, , 721
ESP10, 400, 417, 430, 437, 442, 720, , 724
ESP10, 404, 420, 430, 438, 442, 723, , 727
ESP10, 406, 420, 430, 438, 442, 726, , 730
ESP10, 407, 421, 432, 437, 443, 729, , 733
ESP10, 408, 419, 432, 437, 442, 732, , 736
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/LGDW1W_SQIN.ESPF10.csv
LGDW1W_SQIN.ESPF0.csv|2026-05-08
LGDW1W_SQIN.ESPF10.csv|2026-05-08
LGDW1W_SQIN.ESPFM.csv|2026-05-08
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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