Choose Date:
Archive:
Water Year
Loading...
SNAKE - LOWER GRANITE DAM
(
LGDW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-05-13
Issued:
2026-05-13
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
15451
16201
68
17455
23929
APR-JUL
13415
14090
65
15212
21589
APR-AUG
14399
15170
66
16292
22827
JAN-SEP
23323
24073
77
25326
31446
JAN-JUL
21287
21961
75
23083
29106
OCT-SEP
28704
29453
82
30707
35973
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-05-13
Issued:
2026-05-13
Hide Forecast
APR-SEP
15741
16402
69
17969
23929
APR-JUL
13699
14250
66
15772
21589
APR-AUG
14687
15313
67
16871
22827
JAN-SEP
23613
24274
77
25841
31446
JAN-JUL
21571
22121
76
23644
29106
OCT-SEP
28994
29655
82
31222
35973
Reference
ESP with 0 Days QPF
Ensemble:
2026-05-13
Issued:
2026-05-13
Hide Forecast
APR-SEP
16102
16976
71
19439
23929
APR-JUL
14022
14752
68
17121
21589
APR-AUG
15029
15756
69
18257
22827
JAN-SEP
23974
24848
79
27310
31446
JAN-JUL
21893
22624
78
24992
29106
OCT-SEP
29355
30228
84
32691
35973
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 247, 313, 369, 409, 472, 71, , 75
ESP10, 240, 312, 375, 417, 472, 74, , 78
ESP10, 227, 301, 365, 407, 465, 77, , 81
ESP10, 227, 299, 367, 405, 466, 80, , 84
ESP10, 232, 305, 366, 409, 469, 83, , 87
ESP10, 227, 304, 367, 408, 466, 86, , 90
ESP10, 235, 308, 369, 411, 469, 89, , 93
ESP10, 234, 308, 370, 415, 472, 92, , 96
ESP10, 236, 310, 371, 415, 471, 95, , 99
ESP10, 225, 300, 368, 411, 466, 98, , 102
ESP10, 219, 295, 361, 407, 463, 101, , 105
ESP10, 226, 300, 370, 412, 467, 104, , 108
ESP10, 224, 299, 369, 411, 469, 107, , 111
ESP10, 224, 299, 369, 412, 469, 110, , 114
ESP10, 225, 294, 364, 409, 465, 112, , 116
ESP10, 211, 283, 355, 402, 456, 115, , 119
ESP10, 208, 276, 350, 402, 448, 118, , 122
ESP10, 209, 277, 351, 404, 451, 121, , 125
ESP10, 211, 282, 358, 408, 457, 124, , 128
ESP10, 214, 284, 363, 410, 458, 127, , 131
ESP10, 205, 275, 352, 404, 453, 130, , 134
ESP10, 215, 282, 362, 408, 459, 133, , 137
ESP10, 214, 286, 358, 407, 457, 136, , 140
ESP10, 221, 297, 365, 413, 463, 139, , 143
ESP10, 232, 303, 374, 418, 465, 142, , 146
ESP10, 228, 298, 367, 413, 465, 145, , 149
ESP10, 237, 298, 371, 413, 464, 148, , 152
ESP10, 242, 311, 372, 415, 467, 151, , 155
ESP10, 241, 302, 367, 413, 466, 154, , 158
ESP10, 222, 289, 354, 403, 457, 157, , 161
ESP10, 225, 285, 353, 402, 455, 160, , 164
ESP10, 237, 300, 352, 400, 456, 163, , 167
ESP10, 253, 306, 356, 407, 460, 166, , 170
ESP10, 246, 302, 360, 411, 468, 169, , 173
ESP10, 250, 306, 363, 416, 471, 172, , 176
ESP10, 251, 319, 361, 415, 471, 175, , 179
ESP10, 249, 322, 366, 413, 469, 178, , 182
ESP10, 242, 312, 357, 411, 466, 181, , 185
ESP10, 247, 314, 359, 412, 468, 184, , 188
ESP10, 243, 316, 363, 412, 467, 187, , 191
ESP10, 255, 332, 369, 419, 474, 190, , 194
ESP10, 252, 334, 373, 425, 476, 193, , 197
ESP10, 255, 335, 370, 423, 477, 195, , 199
ESP10, 263, 341, 378, 432, 481, 198, , 202
ESP10, 266, 341, 383, 434, 482, 201, , 205
ESP10, 270, 339, 385, 433, 486, 204, , 208
ESP10, 270, 347, 387, 434, 488, 207, , 211
ESP10, 279, 354, 394, 439, 494, 210, , 214
ESP10, 288, 353, 392, 441, 492, 213, , 217
ESP10, 288, 350, 388, 440, 490, 216, , 220
ESP10, 288, 347, 387, 438, 487, 219, , 223
ESP10, 285, 345, 382, 431, 483, 222, , 226
ESP10, 289, 358, 386, 433, 484, 225, , 229
ESP10, 296, 363, 391, 438, 488, 228, , 232
ESP10, 293, 358, 386, 435, 483, 231, , 235
ESP10, 296, 361, 390, 439, 486, 234, , 238
ESP10, 291, 342, 385, 429, 479, 237, , 241
ESP10, 289, 354, 390, 437, 478, 240, , 244
ESP10, 295, 358, 392, 440, 483, 243, , 247
ESP10, 290, 339, 382, 425, 473, 246, , 250
ESP10, 286, 328, 368, 422, 460, 249, , 253
ESP10, 293, 343, 378, 428, 468, 252, , 256
ESP10, 287, 332, 372, 425, 460, 255, , 259
ESP10, 272, 317, 359, 416, 452, 258, , 262
ESP10, 278, 322, 363, 421, 459, 261, , 265
ESP10, 259, 311, 352, 408, 451, 264, , 268
ESP10, 263, 315, 360, 411, 455, 267, , 271
ESP10, 280, 326, 372, 420, 462, 270, , 274
ESP10, 286, 333, 380, 428, 464, 273, , 277
ESP10, 278, 328, 372, 421, 458, 276, , 280
ESP10, 271, 314, 362, 419, 455, 278, , 282
ESP10, 264, 304, 355, 411, 448, 281, , 285
ESP10, 257, 291, 351, 409, 444, 284, , 288
ESP10, 254, 304, 349, 413, 447, 287, , 291
ESP10, 256, 305, 351, 414, 449, 290, , 294
ESP10, 252, 285, 349, 407, 443, 293, , 297
ESP10, 244, 286, 345, 399, 441, 296, , 300
ESP10, 258, 302, 357, 407, 446, 299, , 303
ESP10, 279, 312, 366, 421, 454, 302, , 306
ESP10, 291, 309, 358, 415, 451, 305, , 309
ESP10, 289, 313, 355, 419, 451, 308, , 312
ESP10, 293, 316, 363, 425, 454, 311, , 315
ESP10, 299, 323, 367, 426, 459, 314, , 318
ESP10, 299, 321, 365, 428, 460, 317, , 321
ESP10, 295, 312, 358, 424, 457, 320, , 324
ESP10, 293, 311, 362, 422, 458, 323, , 327
ESP10, 296, 313, 367, 423, 459, 326, , 330
ESP10, 299, 317, 372, 425, 464, 329, , 333
ESP10, 300, 324, 371, 425, 464, 332, , 336
ESP10, 306, 329, 370, 423, 462, 335, , 339
ESP10, 294, 326, 375, 421, 459, 338, , 342
ESP10, 293, 326, 375, 419, 458, 341, , 345
ESP10, 287, 322, 368, 416, 450, 344, , 348
ESP10, 286, 321, 366, 409, 453, 347, , 351
ESP10, 287, 318, 360, 411, 451, 350, , 354
ESP10, 284, 319, 354, 412, 449, 353, , 357
ESP10, 280, 315, 358, 414, 444, 356, , 360
ESP10, 287, 318, 359, 416, 444, 359, , 363
ESP10, 289, 318, 359, 416, 445, 361, , 365
ESP10, 291, 330, 360, 418, 445, 364, , 368
ESP10, 302, 324, 365, 418, 446, 367, , 371
ESP10, 307, 330, 366, 419, 448, 370, , 374
ESP10, 318, 331, 372, 419, 448, 373, , 377
ESP10, 319, 333, 368, 419, 447, 376, , 380
ESP10, 319, 339, 372, 420, 449, 379, , 383
ESP10, 321, 339, 371, 420, 447, 382, , 386
ESP10, 318, 337, 367, 420, 444, 385, , 389
ESP10, 324, 347, 376, 423, 445, 388, , 392
ESP10, 327, 347, 375, 423, 448, 391, , 395
ESP10, 331, 356, 379, 426, 449, 394, , 398
ESP10, 329, 354, 380, 426, 455, 397, , 401
ESP10, 337, 361, 389, 431, 461, 400, , 404
ESP10, 343, 365, 392, 432, 463, 403, , 407
ESP10, 345, 370, 397, 435, 465, 406, , 410
ESP10, 350, 371, 397, 436, 467, 409, , 413
ESP10, 346, 371, 399, 436, 468, 412, , 416
ESP10, 348, 371, 401, 437, 468, 415, , 419
ESP10, 349, 376, 403, 437, 467, 418, , 422
ESP10, 351, 377, 404, 438, 468, 421, , 425
ESP10, 353, 378, 406, 440, 468, 424, , 428
ESP10, 344, 372, 400, 435, 463, 427, , 431
ESP10, 350, 380, 408, 441, 467, 430, , 434
ESP10, 351, 381, 406, 442, 468, 433, , 437
ESP10, 348, 371, 403, 439, 462, 436, , 440
ESP10, 353, 374, 404, 442, 462, 439, , 443
ESP10, 356, 380, 408, 443, 470, 442, , 446
ESP10, 364, 384, 408, 444, 470, 445, , 449
ESP10, 363, 380, 411, 442, 468, 447, , 451
ESP10, 362, 383, 406, 439, 467, 450, , 454
ESP10, 361, 381, 408, 439, 461, 453, , 457
ESP10, 344, 376, 405, 434, 456, 456, , 460
ESP10, 345, 374, 403, 432, 458, 459, , 463
ESP10, 344, 379, 400, 433, 458, 462, , 466
ESP10, 354, 381, 407, 437, 463, 465, , 469
ESP10, 363, 381, 403, 439, 464, 468, , 472
ESP10, 359, 378, 405, 438, 462, 471, , 475
ESP10, 356, 375, 394, 432, 456, 474, , 478
ESP10, 345, 374, 398, 431, 459, 477, , 481
ESP10, 334, 367, 387, 425, 453, 480, , 484
ESP10, 347, 377, 402, 432, 463, 483, , 487
ESP10, 342, 373, 400, 430, 461, 486, , 490
ESP10, 349, 380, 410, 435, 465, 489, , 493
ESP10, 367, 380, 417, 440, 467, 492, , 496
ESP10, 366, 380, 417, 440, 469, 495, , 499
ESP10, 365, 385, 412, 442, 468, 498, , 502
ESP10, 365, 391, 415, 445, 471, 501, , 505
ESP10, 370, 393, 417, 445, 472, 504, , 508
ESP10, 361, 383, 412, 435, 462, 507, , 511
ESP10, 353, 374, 414, 433, 457, 510, , 514
ESP10, 341, 367, 408, 428, 453, 513, , 517
ESP10, 349, 384, 416, 436, 457, 516, , 520
ESP10, 348, 383, 418, 436, 455, 519, , 523
ESP10, 352, 380, 415, 437, 455, 522, , 526
ESP10, 349, 371, 407, 430, 446, 525, , 529
ESP10, 355, 378, 408, 435, 450, 528, , 532
ESP10, 350, 381, 408, 432, 445, 530, , 534
ESP10, 354, 382, 408, 433, 446, 533, , 537
ESP10, 348, 383, 405, 432, 447, 536, , 540
ESP10, 357, 381, 402, 432, 447, 539, , 543
ESP10, 366, 390, 412, 438, 452, 542, , 546
ESP10, 358, 383, 402, 433, 445, 545, , 549
ESP10, 339, 372, 391, 424, 439, 548, , 552
ESP10, 359, 390, 404, 439, 451, 551, , 555
ESP10, 364, 391, 410, 441, 455, 554, , 558
ESP10, 364, 395, 415, 442, 457, 557, , 561
ESP10, 365, 391, 414, 438, 454, 560, , 564
ESP10, 363, 385, 410, 434, 450, 563, , 567
ESP10, 367, 395, 415, 437, 454, 566, , 570
ESP10, 375, 400, 421, 443, 457, 569, , 573
ESP10, 379, 402, 425, 452, 459, 572, , 576
ESP10, 378, 406, 425, 451, 459, 575, , 579
ESP10, 379, 409, 428, 453, 459, 578, , 582
ESP10, 380, 406, 428, 452, 457, 581, , 585
ESP10, 366, 388, 416, 439, 445, 584, , 588
ESP10, 363, 381, 409, 428, 439, 587, , 591
ESP10, 365, 382, 412, 431, 441, 590, , 594
ESP10, 361, 377, 408, 426, 434, 593, , 597
ESP10, 361, 377, 410, 427, 437, 596, , 600
ESP10, 365, 382, 416, 429, 441, 599, , 603
ESP10, 367, 383, 415, 429, 440, 602, , 606
ESP10, 371, 384, 421, 435, 442, 605, , 609
ESP10, 373, 386, 423, 435, 443, 608, , 612
ESP10, 371, 383, 417, 431, 440, 611, , 615
ESP10, 379, 392, 424, 440, 446, 613, , 617
ESP10, 376, 391, 422, 436, 444, 616, , 620
ESP10, 374, 388, 420, 436, 445, 619, , 623
ESP10, 376, 385, 419, 436, 446, 622, , 626
ESP10, 378, 392, 423, 438, 447, 625, , 629
ESP10, 367, 381, 412, 427, 439, 628, , 632
ESP10, 360, 375, 407, 421, 432, 631, , 635
ESP10, 356, 371, 401, 415, 427, 634, , 638
ESP10, 354, 372, 400, 415, 428, 637, , 641
ESP10, 350, 365, 394, 407, 420, 640, , 644
ESP10, 363, 371, 403, 414, 427, 643, , 647
ESP10, 357, 371, 401, 410, 422, 646, , 650
ESP10, 375, 383, 414, 423, 435, 649, , 653
ESP10, 369, 379, 407, 420, 429, 652, , 656
ESP10, 380, 388, 417, 428, 436, 655, , 659
ESP10, 377, 388, 414, 425, 434, 658, , 662
ESP10, 376, 389, 411, 423, 432, 661, , 665
ESP10, 375, 391, 414, 421, 431, 664, , 668
ESP10, 374, 393, 414, 423, 431, 667, , 671
ESP10, 377, 399, 417, 425, 433, 670, , 674
ESP10, 386, 407, 424, 432, 439, 673, , 677
ESP10, 386, 409, 424, 433, 439, 676, , 680
ESP10, 389, 410, 426, 434, 441, 679, , 683
ESP10, 386, 409, 427, 433, 439, 682, , 686
ESP10, 387, 410, 428, 433, 439, 685, , 689
ESP10, 389, 414, 430, 435, 442, 688, , 692
ESP10, 388, 413, 429, 435, 440, 691, , 695
ESP10, 387, 414, 428, 435, 440, 694, , 698
ESP10, 395, 417, 429, 437, 442, 696, , 700
ESP10, 399, 418, 431, 437, 442, 699, , 703
ESP10, 399, 418, 432, 437, 442, 702, , 706
ESP10, 400, 419, 432, 439, 444, 705, , 709
ESP10, 404, 421, 433, 440, 444, 708, , 712
ESP10, 407, 422, 433, 440, 445, 711, , 715
ESP10, 409, 422, 434, 439, 445, 714, , 718
ESP10, 409, 421, 434, 438, 444, 717, , 721
ESP10, 410, 418, 434, 438, 442, 720, , 724
ESP10, 415, 420, 436, 440, 444, 723, , 727
ESP10, 412, 418, 432, 437, 440, 726, , 730
ESP10, 419, 423, 436, 442, 446, 729, , 733
ESP10, 422, 425, 438, 443, 448, 732, , 736
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/LGDW1N_SQIN.ESPF10.csv
LGDW1N_SQIN.ESPF0.csv|2026-05-13
LGDW1N_SQIN.ESPF10.csv|2026-05-13
LGDW1N_SQIN.ESPFM.csv|2026-05-13
APR-SEP
Commerce Home
|
NOAA
|
NWS Organization
|
NWRFC Site Map
|
Search
Freedom of Information Act
|
Privacy Policy
|
Information Quality
|
USA.gov
|
Career Opportunities
#FFF68F
#33CCFF
#404040
#660066
#F00007
#66CCFF
ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
