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Archive:
Water Year
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SNAKE - LOWER GRANITE DAM
(
LGDW1
)
Forecasts for Water Year
2025
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
17881
17972
81
18153
22232
APR-JUL
15800
15806
79
15818
19946
APR-AUG
16824
16870
80
16952
21121
JAN-SEP
25001
25092
84
25274
29736
JAN-JUL
22920
22927
84
22939
27450
OCT-SEP
28580
28671
84
28853
34287
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
APR-SEP
17886
17964
81
18150
22232
APR-JUL
15800
15808
79
15821
19946
APR-AUG
16827
16871
80
16950
21121
JAN-SEP
25006
25084
84
25270
29736
JAN-JUL
22921
22928
84
22941
27450
OCT-SEP
28585
28663
84
28849
34287
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
APR-SEP
17887
17972
81
18180
22232
APR-JUL
15804
15816
79
15840
19946
APR-AUG
16834
16879
80
16970
21121
JAN-SEP
25008
25092
84
25301
29736
JAN-JUL
22924
22936
84
22960
27450
OCT-SEP
28587
28671
84
28880
34287
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 249, 332, 378, 425, 487, 70, , 74
ESP10, 256, 335, 396, 435, 489, 73, , 77
ESP10, 259, 336, 398, 438, 491, 75, , 79
ESP10, 259, 340, 403, 434, 492, 77, , 81
ESP10, 258, 339, 402, 437, 492, 80, , 84
ESP10, 258, 339, 402, 439, 493, 82, , 86
ESP10, 265, 343, 405, 445, 495, 84, , 88
ESP10, 264, 343, 404, 446, 494, 87, , 91
ESP10, 259, 341, 393, 443, 492, 89, , 93
ESP10, 260, 340, 392, 442, 491, 92, , 96
ESP10, 261, 340, 394, 442, 492, 94, , 98
ESP10, 261, 339, 404, 441, 492, 96, , 100
ESP10, 254, 336, 399, 438, 491, 99, , 103
ESP10, 259, 340, 406, 442, 494, 101, , 105
ESP10, 260, 339, 405, 443, 494, 103, , 107
ESP10, 263, 337, 405, 444, 493, 106, , 110
ESP10, 263, 341, 402, 440, 492, 108, , 112
ESP10, 257, 335, 397, 436, 489, 110, , 114
ESP10, 255, 331, 397, 441, 489, 113, , 117
ESP10, 247, 318, 388, 431, 482, 115, , 119
ESP10, 251, 323, 391, 435, 483, 117, , 121
ESP10, 252, 328, 393, 437, 487, 120, , 124
ESP10, 251, 327, 395, 439, 485, 122, , 126
ESP10, 258, 338, 396, 442, 487, 124, , 128
ESP10, 259, 339, 396, 442, 487, 127, , 131
ESP10, 258, 337, 394, 440, 487, 129, , 133
ESP10, 260, 335, 387, 438, 485, 131, , 135
ESP10, 259, 335, 391, 439, 486, 134, , 138
ESP10, 262, 338, 390, 438, 483, 136, , 140
ESP10, 265, 340, 395, 439, 483, 139, , 143
ESP10, 257, 326, 385, 430, 476, 141, , 145
ESP10, 271, 322, 380, 425, 473, 143, , 147
ESP10, 266, 327, 381, 428, 477, 146, , 150
ESP10, 258, 318, 373, 423, 472, 148, , 152
ESP10, 253, 320, 364, 418, 468, 150, , 154
ESP10, 255, 316, 363, 416, 468, 153, , 157
ESP10, 257, 328, 372, 420, 473, 155, , 159
ESP10, 248, 323, 367, 416, 468, 157, , 161
ESP10, 253, 334, 371, 423, 472, 160, , 164
ESP10, 257, 342, 378, 428, 478, 162, , 166
ESP10, 261, 346, 385, 436, 481, 164, , 168
ESP10, 273, 357, 390, 443, 489, 167, , 171
ESP10, 264, 350, 390, 441, 485, 169, , 173
ESP10, 271, 352, 391, 443, 487, 171, , 175
ESP10, 257, 336, 382, 429, 476, 174, , 178
ESP10, 241, 328, 369, 416, 474, 176, , 180
ESP10, 238, 314, 365, 416, 470, 178, , 182
ESP10, 231, 308, 358, 411, 463, 181, , 185
ESP10, 254, 318, 369, 419, 473, 183, , 187
ESP10, 250, 323, 365, 415, 474, 186, , 190
ESP10, 258, 327, 368, 421, 475, 188, , 192
ESP10, 265, 339, 375, 429, 480, 190, , 194
ESP10, 270, 348, 378, 432, 482, 193, , 197
ESP10, 276, 351, 378, 432, 482, 195, , 199
ESP10, 278, 344, 377, 432, 481, 197, , 201
ESP10, 285, 347, 380, 435, 479, 200, , 204
ESP10, 285, 346, 379, 439, 478, 202, , 206
ESP10, 298, 350, 379, 439, 478, 204, , 208
ESP10, 294, 349, 383, 441, 480, 207, , 211
ESP10, 305, 349, 385, 441, 480, 209, , 213
ESP10, 314, 348, 383, 444, 480, 211, , 215
ESP10, 308, 352, 383, 442, 478, 214, , 218
ESP10, 303, 350, 381, 439, 474, 216, , 220
ESP10, 294, 344, 374, 438, 471, 218, , 222
ESP10, 295, 343, 375, 438, 471, 221, , 225
ESP10, 298, 347, 386, 439, 473, 223, , 227
ESP10, 296, 347, 380, 439, 472, 226, , 230
ESP10, 310, 361, 400, 450, 484, 228, , 232
ESP10, 311, 360, 399, 450, 483, 230, , 234
ESP10, 313, 357, 396, 448, 480, 233, , 237
ESP10, 321, 362, 402, 452, 486, 235, , 239
ESP10, 323, 363, 404, 456, 487, 237, , 241
ESP10, 315, 355, 396, 451, 482, 240, , 244
ESP10, 311, 353, 395, 453, 481, 242, , 246
ESP10, 287, 329, 381, 438, 468, 244, , 248
ESP10, 284, 330, 379, 436, 468, 247, , 251
ESP10, 273, 320, 370, 426, 461, 249, , 253
ESP10, 287, 321, 373, 426, 462, 251, , 255
ESP10, 288, 317, 374, 421, 456, 254, , 258
ESP10, 291, 317, 366, 419, 453, 256, , 260
ESP10, 293, 315, 369, 422, 453, 258, , 262
ESP10, 301, 329, 373, 427, 457, 261, , 265
ESP10, 290, 317, 366, 420, 449, 263, , 267
ESP10, 298, 321, 370, 423, 454, 265, , 269
ESP10, 293, 319, 350, 417, 450, 268, , 272
ESP10, 295, 314, 353, 415, 451, 270, , 274
ESP10, 298, 323, 359, 419, 453, 273, , 277
ESP10, 299, 324, 368, 420, 455, 275, , 279
ESP10, 294, 309, 364, 414, 453, 277, , 281
ESP10, 304, 324, 372, 410, 454, 280, , 284
ESP10, 308, 325, 375, 409, 453, 282, , 286
ESP10, 308, 331, 378, 411, 453, 284, , 288
ESP10, 307, 332, 378, 420, 451, 287, , 291
ESP10, 307, 339, 378, 421, 455, 289, , 293
ESP10, 304, 332, 373, 420, 451, 294, , 298
ESP10, 307, 336, 376, 421, 452, 296, , 300
ESP10, 308, 341, 377, 424, 450, 298, , 302
ESP10, 307, 340, 372, 423, 450, 301, , 305
ESP10, 309, 342, 373, 422, 451, 303, , 307
ESP10, 314, 344, 376, 423, 451, 305, , 309
ESP10, 318, 343, 377, 425, 452, 308, , 312
ESP10, 324, 346, 377, 425, 451, 310, , 314
ESP10, 330, 350, 379, 425, 450, 312, , 316
ESP10, 329, 353, 380, 425, 450, 315, , 319
ESP10, 336, 355, 382, 426, 450, 317, , 321
ESP10, 336, 355, 381, 427, 449, 320, , 324
ESP10, 337, 359, 381, 429, 450, 322, , 326
ESP10, 340, 361, 385, 430, 451, 324, , 328
ESP10, 342, 363, 390, 431, 454, 327, , 331
ESP10, 340, 362, 393, 429, 457, 329, , 333
ESP10, 347, 366, 395, 431, 461, 331, , 335
ESP10, 343, 362, 391, 429, 459, 334, , 338
ESP10, 333, 357, 387, 426, 452, 336, , 340
ESP10, 334, 357, 387, 427, 452, 338, , 342
ESP10, 338, 360, 390, 429, 454, 341, , 345
ESP10, 332, 356, 387, 423, 449, 343, , 347
ESP10, 306, 336, 366, 403, 433, 345, , 349
ESP10, 309, 337, 364, 403, 434, 348, , 352
ESP10, 296, 316, 355, 398, 424, 350, , 354
ESP10, 295, 318, 358, 401, 425, 352, , 356
ESP10, 311, 341, 375, 414, 437, 355, , 359
ESP10, 305, 328, 362, 407, 431, 357, , 361
ESP10, 291, 319, 347, 399, 423, 360, , 364
ESP10, 296, 319, 358, 394, 423, 362, , 366
ESP10, 298, 323, 354, 394, 421, 364, , 368
ESP10, 297, 316, 350, 391, 416, 367, , 371
ESP10, 294, 312, 349, 385, 409, 369, , 373
ESP10, 275, 299, 340, 373, 401, 371, , 375
ESP10, 294, 319, 352, 385, 410, 374, , 378
ESP10, 288, 319, 352, 383, 409, 376, , 380
ESP10, 296, 328, 356, 388, 413, 378, , 382
ESP10, 303, 335, 362, 393, 417, 381, , 385
ESP10, 291, 328, 359, 388, 414, 383, , 387
ESP10, 299, 332, 363, 390, 420, 385, , 389
ESP10, 291, 326, 356, 386, 417, 388, , 392
ESP10, 291, 326, 355, 388, 419, 390, , 394
ESP10, 290, 321, 350, 384, 419, 392, , 396
ESP10, 286, 320, 352, 382, 419, 395, , 399
ESP10, 289, 320, 354, 382, 423, 397, , 401
ESP10, 286, 316, 352, 382, 421, 399, , 403
ESP10, 288, 326, 357, 385, 423, 402, , 406
ESP10, 286, 308, 352, 379, 417, 404, , 408
ESP10, 284, 305, 351, 372, 411, 407, , 411
ESP10, 287, 306, 351, 374, 412, 409, , 413
ESP10, 297, 319, 361, 383, 415, 411, , 415
ESP10, 298, 322, 364, 386, 416, 414, , 418
ESP10, 297, 313, 365, 387, 420, 416, , 420
ESP10, 294, 310, 363, 385, 418, 418, , 422
ESP10, 297, 322, 367, 385, 416, 421, , 425
ESP10, 297, 326, 367, 390, 417, 423, , 427
ESP10, 294, 320, 359, 385, 407, 425, , 429
ESP10, 269, 300, 348, 381, 402, 428, , 432
ESP10, 267, 302, 357, 380, 401, 430, , 434
ESP10, 266, 307, 352, 381, 397, 432, , 436
ESP10, 263, 306, 347, 376, 395, 435, , 439
ESP10, 268, 312, 350, 373, 392, 437, , 441
ESP10, 253, 290, 337, 365, 383, 439, , 443
ESP10, 260, 308, 344, 370, 387, 442, , 446
ESP10, 267, 311, 345, 374, 389, 444, , 448
ESP10, 269, 317, 346, 373, 391, 446, , 450
ESP10, 263, 306, 334, 364, 383, 449, , 453
ESP10, 255, 298, 328, 358, 378, 451, , 455
ESP10, 250, 295, 324, 353, 374, 454, , 458
ESP10, 242, 290, 321, 350, 374, 456, , 460
ESP10, 250, 294, 319, 347, 369, 458, , 462
ESP10, 269, 298, 334, 361, 380, 461, , 465
ESP10, 278, 307, 343, 367, 385, 463, , 467
ESP10, 281, 306, 345, 373, 386, 465, , 469
ESP10, 283, 316, 345, 375, 385, 468, , 472
ESP10, 285, 315, 344, 375, 383, 470, , 474
ESP10, 285, 318, 346, 375, 382, 472, , 476
ESP10, 288, 305, 341, 368, 376, 475, , 479
ESP10, 267, 289, 332, 357, 364, 477, , 481
ESP10, 253, 283, 316, 344, 353, 479, , 483
ESP10, 264, 288, 320, 350, 359, 482, , 486
ESP10, 273, 292, 337, 357, 370, 484, , 488
ESP10, 282, 301, 341, 365, 380, 486, , 490
ESP10, 291, 310, 355, 370, 382, 489, , 493
ESP10, 303, 320, 363, 377, 388, 491, , 495
ESP10, 300, 319, 364, 379, 386, 494, , 498
ESP10, 303, 320, 366, 381, 387, 496, , 500
ESP10, 297, 313, 359, 373, 380, 498, , 502
ESP10, 290, 307, 354, 368, 375, 501, , 505
ESP10, 288, 307, 349, 367, 378, 503, , 507
ESP10, 290, 309, 354, 369, 376, 505, , 509
ESP10, 297, 316, 357, 372, 380, 508, , 512
ESP10, 298, 322, 358, 372, 381, 510, , 514
ESP10, 303, 322, 361, 374, 384, 512, , 516
ESP10, 299, 322, 360, 373, 385, 515, , 519
ESP10, 306, 329, 364, 376, 388, 517, , 521
ESP10, 312, 334, 367, 378, 392, 519, , 523
ESP10, 318, 334, 368, 380, 394, 522, , 526
ESP10, 315, 335, 368, 381, 392, 524, , 528
ESP10, 317, 338, 371, 381, 392, 526, , 530
ESP10, 321, 339, 371, 383, 394, 529, , 533
ESP10, 324, 335, 367, 379, 388, 531, , 535
ESP10, 327, 335, 366, 378, 389, 533, , 537
ESP10, 325, 338, 369, 381, 391, 536, , 540
ESP10, 328, 343, 370, 384, 392, 538, , 542
ESP10, 331, 345, 374, 385, 393, 541, , 545
ESP10, 332, 347, 376, 384, 395, 543, , 547
ESP10, 340, 360, 384, 394, 402, 545, , 549
ESP10, 339, 359, 382, 391, 400, 548, , 552
ESP10, 340, 365, 383, 393, 402, 550, , 554
ESP10, 337, 367, 384, 395, 404, 552, , 556
ESP10, 330, 358, 379, 390, 399, 555, , 559
ESP10, 325, 356, 375, 386, 394, 557, , 561
ESP10, 328, 360, 377, 387, 397, 559, , 563
ESP10, 329, 365, 380, 388, 396, 562, , 566
ESP10, 333, 368, 383, 393, 398, 564, , 568
ESP10, 342, 371, 385, 394, 400, 566, , 570
ESP10, 347, 371, 385, 393, 399, 569, , 573
ESP10, 345, 371, 387, 393, 399, 571, , 575
ESP10, 344, 369, 385, 392, 398, 573, , 577
ESP10, 345, 370, 384, 392, 396, 576, , 580
ESP10, 346, 369, 383, 392, 396, 578, , 582
ESP10, 346, 367, 382, 390, 394, 580, , 584
ESP10, 353, 369, 385, 394, 398, 583, , 587
ESP10, 351, 365, 381, 391, 397, 585, , 589
ESP10, 359, 366, 385, 394, 400, 588, , 592
ESP10, 360, 367, 385, 394, 400, 590, , 594
ESP10, 359, 367, 384, 394, 398, 592, , 596
ESP10, 369, 377, 393, 402, 406, 595, , 599
ESP10, 369, 377, 391, 397, 402, 597, , 601
ESP10, 369, 377, 390, 397, 402, 599, , 603
ESP10, 371, 381, 392, 397, 404, 602, , 606
ESP10, 368, 380, 390, 395, 403, 604, , 608
ESP10, 376, 385, 395, 401, 408, 606, , 610
ESP10, 375, 386, 396, 399, 408, 609, , 613
ESP10, 383, 393, 402, 407, 411, 611, , 615
ESP10, 385, 394, 403, 408, 412, 613, , 617
ESP10, 386, 394, 403, 409, 412, 616, , 620
ESP10, 388, 398, 405, 411, 414, 618, , 622
ESP10, 389, 400, 406, 411, 414, 620, , 624
ESP10, 390, 398, 404, 409, 412, 623, , 627
ESP10, 393, 399, 404, 408, 411, 625, , 629
ESP10, 390, 395, 401, 404, 407, 628, , 632
ESP10, 393, 401, 403, 407, 409, 630, , 634
ESP10, 398, 403, 407, 410, 412, 632, , 636
ESP10, 400, 407, 410, 413, 415, 635, , 639
ESP10, 400, 406, 410, 412, 414, 637, , 641
ESP10, 401, 407, 410, 413, 415, 639, , 643
ESP10, 402, 408, 410, 413, 414, 642, , 646
ESP10, 402, 406, 410, 412, 413, 644, , 648
ESP10, 402, 406, 409, 411, 412, 646, , 650
ESP10, 403, 406, 409, 412, 413, 649, , 653
ESP10, 403, 406, 409, 412, 413, 651, , 655
ESP10, 405, 407, 410, 412, 413, 653, , 657
ESP10, 405, 408, 410, 412, 412, 656, , 660
ESP10, 403, 407, 409, 410, 410, 679, , 683
ESP10, 405, 408, 409, 410, 411, 682, , 686
ESP10, 405, 408, 409, 411, 411, 684, , 688
ESP10, 404, 407, 408, 410, 410, 686, , 690
ESP10, 407, 410, 411, 412, 413, 689, , 693
ESP10, 408, 410, 411, 412, 413, 691, , 695
ESP10, 408, 410, 411, 412, 412, 693, , 697
ESP10, 408, 410, 411, 412, 413, 696, , 700
ESP10, 409, 410, 412, 413, 413, 698, , 702
ESP10, 409, 410, 412, 413, 413, 700, , 704
ESP10, 408, 410, 411, 412, 412, 703, , 707
ESP10, 409, 410, 412, 412, 413, 705, , 709
ESP10, 409, 410, 412, 412, 413, 707, , 711
ESP10, 408, 410, 411, 412, 412, 710, , 714
ESP10, 408, 410, 411, 412, 412, 712, , 716
ESP10, 409, 410, 412, 412, 413, 714, , 718
ESP10, 409, 410, 411, 412, 413, 717, , 721
ESP10, 409, 410, 412, 413, 413, 719, , 723
ESP10, 409, 410, 411, 412, 412, 722, , 726
ESP10, 409, 410, 411, 412, 413, 724, , 728
ESP10, 409, 411, 412, 413, 413, 726, , 730
ESP10, 409, 410, 412, 413, 413, 729, , 733
ESP10, 411, 412, 413, 414, 414, 731, , 735
ESP10, 410, 411, 413, 414, 414, 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/watersupply/LGDW1W_SQIN.ESPF10.csv
LGDW1W_SQIN.ESPF0.csv|2025-07-11
LGDW1W_SQIN.ESPF10.csv|2025-07-11
LGDW1W_SQIN.ESPFM.csv|2025-07-11
APR-SEP
SNAKE - LOWER GRANITE DAM
(
LGDW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
12540
19404
87
29895
22232
APR-JUL
10792
17341
87
27019
19946
APR-AUG
11636
18372
87
28545
21121
JAN-SEP
18287
26892
90
39150
29736
JAN-JUL
16516
24758
90
35983
27450
OCT-SEP
23367
31595
92
44714
34287
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/LGDW1W_SQIN.ESPF10.csv
LGDW1W_SQIN.ESPF0.csv|2025-07-11
LGDW1W_SQIN.ESPF10.csv|2025-07-11
LGDW1W_SQIN.ESPFM.csv|2025-07-11
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
