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Archive:
Water Year
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NISQUALLY - ALDER RESERVOIR
(
ALRW1
)
Forecasts for Water Year
2026
Natural Forecast
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
249
262
66
318
395
APR-JUL
198
210
64
253
326
JAN-SEP
619
632
83
688
760
JAN-JUL
568
580
84
623
691
OCT-SEP
1055
1067
101
1124
1059
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-05-08
Issued:
2026-05-08
Hide Forecast
APR-SEP
252
270
68
321
395
APR-JUL
200
218
67
258
326
JAN-SEP
622
640
84
691
760
JAN-JUL
570
588
85
628
691
OCT-SEP
1058
1076
102
1127
1059
Reference
ESP with 0 Days QPF
Ensemble:
2026-05-08
Issued:
2026-05-08
Hide Forecast
APR-SEP
253
279
71
332
395
APR-JUL
204
225
69
269
326
JAN-SEP
623
649
85
702
760
JAN-JUL
574
595
86
639
691
OCT-SEP
1059
1085
102
1137
1059
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 178, 236, 293, 359, 406, 71, , 75
ESP10, 178, 236, 294, 359, 406, 74, , 78
ESP10, 178, 236, 294, 359, 407, 77, , 81
ESP10, 178, 236, 293, 359, 406, 80, , 84
ESP10, 178, 236, 294, 359, 407, 83, , 87
ESP10, 178, 236, 294, 359, 407, 86, , 90
ESP10, 178, 236, 293, 359, 407, 89, , 93
ESP10, 178, 236, 293, 359, 407, 92, , 96
ESP10, 178, 236, 293, 359, 407, 95, , 99
ESP10, 178, 236, 292, 359, 407, 98, , 102
ESP10, 178, 236, 293, 360, 407, 101, , 105
ESP10, 178, 236, 293, 360, 407, 104, , 108
ESP10, 178, 236, 293, 360, 407, 107, , 111
ESP10, 178, 236, 293, 360, 408, 110, , 114
ESP10, 177, 236, 293, 359, 408, 113, , 117
ESP10, 177, 235, 291, 359, 407, 117, , 121
ESP10, 176, 234, 290, 357, 405, 120, , 124
ESP10, 176, 232, 290, 357, 406, 123, , 127
ESP10, 175, 233, 290, 356, 406, 126, , 130
ESP10, 176, 234, 291, 357, 407, 129, , 133
ESP10, 175, 232, 288, 354, 406, 132, , 136
ESP10, 177, 235, 291, 358, 408, 135, , 139
ESP10, 177, 235, 291, 357, 408, 138, , 142
ESP10, 178, 235, 293, 362, 408, 141, , 145
ESP10, 179, 236, 294, 363, 409, 144, , 148
ESP10, 180, 236, 294, 365, 409, 147, , 151
ESP10, 180, 236, 294, 365, 409, 150, , 154
ESP10, 180, 238, 294, 365, 409, 153, , 157
ESP10, 180, 238, 294, 365, 410, 156, , 160
ESP10, 181, 238, 294, 364, 409, 159, , 163
ESP10, 180, 238, 293, 363, 408, 162, , 166
ESP10, 181, 238, 294, 363, 409, 165, , 169
ESP10, 180, 238, 295, 363, 409, 168, , 172
ESP10, 181, 239, 296, 364, 410, 171, , 175
ESP10, 181, 239, 296, 364, 410, 174, , 178
ESP10, 184, 239, 296, 364, 410, 177, , 181
ESP10, 184, 239, 296, 365, 411, 180, , 184
ESP10, 184, 236, 294, 363, 410, 183, , 187
ESP10, 183, 235, 293, 363, 409, 186, , 190
ESP10, 183, 235, 294, 363, 410, 189, , 193
ESP10, 185, 239, 298, 364, 414, 192, , 196
ESP10, 186, 240, 299, 365, 414, 195, , 199
ESP10, 181, 237, 294, 361, 410, 198, , 202
ESP10, 190, 247, 304, 371, 418, 201, , 205
ESP10, 188, 246, 305, 370, 419, 204, , 208
ESP10, 185, 244, 305, 369, 418, 207, , 211
ESP10, 187, 247, 306, 369, 419, 210, , 214
ESP10, 189, 250, 312, 371, 420, 214, , 218
ESP10, 189, 251, 312, 373, 422, 217, , 221
ESP10, 191, 252, 316, 377, 423, 220, , 224
ESP10, 193, 250, 316, 377, 421, 223, , 227
ESP10, 197, 250, 318, 376, 420, 226, , 230
ESP10, 195, 251, 317, 374, 418, 229, , 233
ESP10, 198, 253, 320, 377, 421, 232, , 236
ESP10, 197, 253, 320, 377, 421, 235, , 239
ESP10, 203, 261, 327, 382, 425, 238, , 242
ESP10, 202, 260, 326, 379, 425, 241, , 245
ESP10, 202, 260, 326, 379, 427, 244, , 248
ESP10, 202, 262, 329, 381, 427, 247, , 251
ESP10, 196, 262, 324, 374, 423, 250, , 254
ESP10, 204, 269, 331, 377, 428, 253, , 257
ESP10, 205, 275, 333, 380, 435, 256, , 260
ESP10, 205, 275, 332, 378, 435, 259, , 263
ESP10, 198, 267, 327, 370, 427, 262, , 266
ESP10, 204, 273, 334, 380, 432, 265, , 269
ESP10, 206, 271, 332, 379, 430, 268, , 272
ESP10, 217, 275, 336, 382, 434, 271, , 275
ESP10, 216, 274, 336, 381, 433, 274, , 278
ESP10, 216, 274, 337, 382, 433, 277, , 281
ESP10, 212, 272, 332, 374, 427, 280, , 284
ESP10, 195, 258, 316, 360, 414, 283, , 287
ESP10, 191, 255, 313, 357, 411, 286, , 290
ESP10, 191, 254, 311, 358, 411, 289, , 293
ESP10, 195, 260, 318, 363, 417, 292, , 296
ESP10, 194, 260, 317, 363, 416, 295, , 299
ESP10, 196, 261, 319, 367, 417, 298, , 302
ESP10, 195, 257, 313, 361, 413, 301, , 305
ESP10, 198, 261, 315, 362, 414, 304, , 308
ESP10, 200, 261, 316, 364, 415, 308, , 312
ESP10, 196, 257, 312, 363, 413, 311, , 315
ESP10, 207, 268, 324, 374, 423, 314, , 318
ESP10, 205, 266, 322, 374, 421, 317, , 321
ESP10, 208, 267, 323, 377, 424, 320, , 324
ESP10, 208, 267, 324, 377, 423, 323, , 327
ESP10, 205, 262, 321, 373, 419, 326, , 330
ESP10, 200, 256, 319, 369, 414, 329, , 333
ESP10, 209, 267, 328, 374, 420, 332, , 336
ESP10, 215, 271, 336, 378, 423, 335, , 339
ESP10, 215, 272, 337, 378, 423, 338, , 342
ESP10, 220, 275, 339, 379, 424, 341, , 345
ESP10, 222, 278, 346, 379, 425, 344, , 348
ESP10, 218, 275, 343, 375, 422, 347, , 351
ESP10, 215, 271, 339, 372, 418, 350, , 354
ESP10, 217, 269, 337, 373, 417, 353, , 357
ESP10, 214, 266, 333, 374, 414, 356, , 360
ESP10, 212, 265, 331, 373, 417, 359, , 363
ESP10, 209, 262, 329, 371, 415, 362, , 366
ESP10, 212, 264, 331, 374, 420, 365, , 369
ESP10, 215, 268, 336, 378, 425, 368, , 372
ESP10, 217, 271, 340, 382, 429, 371, , 375
ESP10, 217, 271, 341, 382, 430, 374, , 378
ESP10, 215, 271, 340, 382, 430, 377, , 381
ESP10, 212, 269, 338, 380, 428, 380, , 384
ESP10, 213, 266, 342, 378, 430, 383, , 387
ESP10, 213, 270, 343, 380, 432, 386, , 390
ESP10, 211, 270, 343, 378, 431, 389, , 393
ESP10, 210, 267, 341, 374, 427, 392, , 396
ESP10, 215, 271, 346, 378, 430, 395, , 399
ESP10, 220, 272, 348, 379, 432, 398, , 402
ESP10, 234, 278, 354, 385, 437, 401, , 405
ESP10, 237, 277, 353, 387, 436, 405, , 409
ESP10, 241, 277, 353, 388, 437, 408, , 412
ESP10, 246, 279, 355, 394, 438, 411, , 415
ESP10, 246, 279, 358, 397, 438, 414, , 418
ESP10, 247, 280, 361, 399, 438, 417, , 421
ESP10, 249, 283, 363, 402, 440, 420, , 424
ESP10, 251, 285, 365, 404, 441, 423, , 427
ESP10, 245, 285, 361, 398, 435, 426, , 430
ESP10, 245, 291, 363, 398, 435, 429, , 433
ESP10, 244, 291, 361, 396, 433, 432, , 436
ESP10, 245, 296, 361, 395, 437, 435, , 439
ESP10, 246, 299, 361, 395, 437, 438, , 442
ESP10, 246, 296, 357, 391, 434, 441, , 445
ESP10, 250, 299, 360, 395, 442, 444, , 448
ESP10, 251, 300, 359, 399, 442, 447, , 451
ESP10, 248, 298, 360, 400, 438, 450, , 454
ESP10, 246, 296, 362, 399, 439, 453, , 457
ESP10, 254, 302, 373, 408, 446, 456, , 460
ESP10, 254, 298, 371, 407, 442, 459, , 463
ESP10, 254, 299, 373, 410, 442, 462, , 466
ESP10, 253, 300, 372, 413, 443, 465, , 469
ESP10, 255, 304, 372, 415, 448, 468, , 472
ESP10, 246, 295, 364, 405, 440, 471, , 475
ESP10, 251, 298, 371, 407, 442, 474, , 478
ESP10, 249, 293, 366, 404, 439, 477, , 481
ESP10, 245, 289, 361, 404, 435, 480, , 484
ESP10, 249, 290, 363, 406, 439, 483, , 487
ESP10, 257, 295, 373, 414, 447, 486, , 490
ESP10, 245, 284, 360, 402, 437, 489, , 493
ESP10, 250, 288, 364, 407, 442, 492, , 496
ESP10, 248, 284, 360, 406, 440, 495, , 499
ESP10, 251, 289, 362, 410, 443, 498, , 502
ESP10, 250, 291, 364, 409, 444, 502, , 506
ESP10, 257, 298, 373, 417, 449, 505, , 509
ESP10, 264, 305, 380, 424, 454, 508, , 512
ESP10, 267, 310, 382, 427, 457, 511, , 515
ESP10, 263, 307, 378, 420, 451, 514, , 518
ESP10, 259, 304, 373, 416, 448, 517, , 521
ESP10, 260, 309, 375, 416, 449, 520, , 524
ESP10, 258, 309, 374, 415, 448, 523, , 527
ESP10, 259, 311, 375, 416, 450, 526, , 530
ESP10, 258, 307, 373, 414, 447, 529, , 533
ESP10, 254, 301, 367, 410, 441, 532, , 536
ESP10, 239, 288, 356, 401, 429, 535, , 539
ESP10, 233, 283, 350, 395, 424, 538, , 542
ESP10, 228, 282, 346, 390, 419, 541, , 545
ESP10, 228, 282, 342, 388, 416, 544, , 548
ESP10, 220, 273, 334, 384, 410, 547, , 551
ESP10, 222, 273, 332, 387, 410, 550, , 554
ESP10, 227, 276, 336, 391, 413, 553, , 557
ESP10, 226, 272, 332, 387, 412, 556, , 560
ESP10, 231, 275, 335, 389, 416, 559, , 563
ESP10, 241, 285, 346, 399, 427, 562, , 566
ESP10, 238, 285, 345, 396, 429, 565, , 569
ESP10, 239, 289, 348, 399, 433, 568, , 572
ESP10, 230, 283, 341, 393, 427, 571, , 575
ESP10, 223, 281, 339, 390, 423, 574, , 578
ESP10, 226, 287, 349, 394, 427, 577, , 581
ESP10, 227, 290, 348, 393, 427, 580, , 584
ESP10, 234, 297, 353, 395, 430, 583, , 587
ESP10, 236, 297, 351, 394, 430, 586, , 590
ESP10, 241, 303, 349, 393, 430, 589, , 593
ESP10, 249, 303, 352, 394, 431, 592, , 596
ESP10, 251, 291, 346, 385, 420, 596, , 600
ESP10, 247, 297, 343, 387, 416, 599, , 603
ESP10, 257, 309, 354, 398, 425, 602, , 606
ESP10, 251, 306, 353, 393, 413, 605, , 609
ESP10, 262, 313, 359, 404, 426, 608, , 612
ESP10, 278, 312, 360, 407, 429, 611, , 615
ESP10, 277, 309, 358, 408, 435, 614, , 618
ESP10, 281, 311, 370, 412, 444, 617, , 621
ESP10, 287, 318, 373, 416, 446, 620, , 624
ESP10, 284, 315, 370, 415, 445, 623, , 627
ESP10, 294, 320, 372, 421, 450, 626, , 630
ESP10, 297, 318, 374, 424, 451, 629, , 633
ESP10, 299, 323, 376, 426, 455, 632, , 636
ESP10, 291, 319, 369, 418, 450, 635, , 639
ESP10, 293, 329, 377, 424, 453, 638, , 642
ESP10, 281, 320, 367, 417, 446, 641, , 645
ESP10, 271, 310, 355, 408, 434, 644, , 648
ESP10, 266, 320, 349, 403, 429, 647, , 651
ESP10, 259, 315, 341, 396, 423, 650, , 654
ESP10, 260, 316, 341, 399, 422, 653, , 657
ESP10, 270, 319, 346, 398, 420, 656, , 660
ESP10, 282, 326, 358, 406, 425, 659, , 663
ESP10, 295, 340, 379, 420, 439, 662, , 666
ESP10, 306, 348, 385, 424, 441, 665, , 669
ESP10, 313, 353, 398, 426, 442, 668, , 672
ESP10, 314, 355, 396, 424, 441, 671, , 675
ESP10, 313, 352, 394, 427, 438, 674, , 678
ESP10, 314, 359, 394, 430, 438, 677, , 681
ESP10, 313, 356, 393, 426, 435, 680, , 684
ESP10, 310, 350, 384, 418, 426, 683, , 687
ESP10, 330, 360, 396, 424, 432, 686, , 690
ESP10, 336, 362, 399, 424, 432, 689, , 693
ESP10, 340, 367, 402, 425, 433, 693, , 697
ESP10, 341, 372, 402, 425, 433, 696, , 700
ESP10, 342, 376, 405, 425, 432, 699, , 703
ESP10, 343, 375, 402, 424, 432, 702, , 706
ESP10, 344, 378, 402, 424, 431, 705, , 709
ESP10, 343, 379, 405, 425, 430, 708, , 712
ESP10, 345, 381, 408, 426, 431, 711, , 715
ESP10, 346, 381, 408, 426, 431, 714, , 718
ESP10, 349, 380, 409, 426, 431, 717, , 721
ESP10, 354, 381, 408, 427, 432, 720, , 724
ESP10, 355, 388, 416, 428, 432, 723, , 727
ESP10, 355, 391, 420, 427, 432, 726, , 730
ESP10, 356, 391, 421, 428, 433, 729, , 733
ESP10, 356, 389, 419, 427, 434, 732, , 736
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Data Files
/chpsesp/ensemble/natural/ALRW1N_SQIN.ESPF10.csv
ALRW1N_SQIN.ESPF0.csv|2026-05-08
ALRW1N_SQIN.ESPF10.csv|2026-05-08
ALRW1N_SQIN.ESPFM.csv|2026-05-08
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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