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Archive:
Water Year
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STEHEKIN - AT STEHEKIN
(
STHW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-05
Issued:
2026-08-05
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
591
592
73
595
814
APR-JUL
551
551
78
551
710
APR-AUG
576
576
74
577
778
JAN-SEP
815
816
89
819
913
JAN-JUL
775
775
96
775
809
OCT-SEP
1095
1096
105
1100
1046
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-05
Issued:
2026-08-05
Hide Forecast
APR-SEP
591
592
73
595
814
APR-JUL
551
551
78
551
710
APR-AUG
576
576
74
577
778
JAN-SEP
815
816
89
819
913
JAN-JUL
775
775
96
775
809
OCT-SEP
1095
1096
105
1100
1046
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-05
Issued:
2026-08-05
Hide Forecast
APR-SEP
591
592
73
596
814
APR-JUL
551
551
78
551
710
APR-AUG
576
577
74
578
778
JAN-SEP
815
816
89
820
913
JAN-JUL
775
775
96
775
809
OCT-SEP
1095
1096
105
1100
1046
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 247, 331, 381, 426, 459, 70, , 74
ESP10, 248, 331, 380, 424, 459, 72, , 76
ESP10, 249, 333, 381, 426, 459, 74, , 78
ESP10, 252, 333, 381, 425, 459, 77, , 81
ESP10, 256, 336, 383, 429, 461, 79, , 83
ESP10, 256, 338, 383, 429, 461, 81, , 85
ESP10, 258, 337, 382, 428, 461, 83, , 87
ESP10, 259, 339, 385, 429, 462, 85, , 89
ESP10, 259, 338, 386, 428, 462, 87, , 91
ESP10, 257, 334, 381, 423, 458, 90, , 94
ESP10, 259, 337, 384, 426, 460, 92, , 96
ESP10, 259, 339, 382, 428, 462, 94, , 98
ESP10, 260, 339, 382, 429, 465, 96, , 100
ESP10, 260, 340, 380, 429, 464, 98, , 102
ESP10, 257, 338, 378, 427, 463, 100, , 104
ESP10, 247, 328, 370, 418, 455, 103, , 107
ESP10, 243, 323, 365, 414, 450, 105, , 109
ESP10, 241, 324, 363, 411, 451, 107, , 111
ESP10, 247, 329, 368, 416, 457, 109, , 113
ESP10, 247, 327, 365, 414, 456, 111, , 115
ESP10, 241, 319, 359, 408, 452, 113, , 117
ESP10, 246, 324, 362, 414, 459, 116, , 120
ESP10, 234, 315, 353, 403, 450, 118, , 122
ESP10, 241, 320, 361, 410, 455, 120, , 124
ESP10, 243, 323, 363, 414, 456, 122, , 126
ESP10, 237, 320, 359, 410, 452, 124, , 128
ESP10, 237, 319, 362, 408, 452, 126, , 130
ESP10, 242, 323, 367, 411, 455, 129, , 133
ESP10, 241, 318, 363, 407, 450, 131, , 135
ESP10, 237, 309, 356, 399, 443, 133, , 137
ESP10, 229, 300, 349, 391, 434, 135, , 139
ESP10, 235, 308, 355, 401, 438, 137, , 141
ESP10, 236, 313, 357, 403, 438, 139, , 143
ESP10, 247, 323, 366, 415, 448, 141, , 145
ESP10, 248, 325, 365, 413, 447, 144, , 148
ESP10, 248, 325, 367, 414, 448, 146, , 150
ESP10, 250, 331, 369, 415, 448, 148, , 152
ESP10, 246, 331, 367, 415, 444, 150, , 154
ESP10, 249, 334, 371, 417, 446, 152, , 156
ESP10, 247, 332, 371, 415, 446, 154, , 158
ESP10, 249, 331, 371, 415, 449, 157, , 161
ESP10, 257, 334, 372, 418, 451, 159, , 163
ESP10, 257, 334, 370, 417, 449, 161, , 165
ESP10, 256, 336, 375, 417, 453, 163, , 167
ESP10, 253, 334, 373, 415, 453, 165, , 169
ESP10, 254, 335, 373, 416, 456, 167, , 171
ESP10, 245, 325, 364, 409, 449, 170, , 174
ESP10, 252, 332, 372, 417, 458, 172, , 176
ESP10, 252, 329, 368, 419, 456, 174, , 178
ESP10, 259, 330, 371, 424, 460, 176, , 180
ESP10, 262, 334, 367, 424, 456, 178, , 182
ESP10, 273, 334, 367, 421, 454, 180, , 184
ESP10, 275, 333, 370, 420, 453, 183, , 187
ESP10, 291, 352, 388, 432, 466, 185, , 189
ESP10, 292, 348, 389, 430, 466, 187, , 191
ESP10, 294, 348, 392, 428, 467, 189, , 193
ESP10, 291, 343, 389, 422, 462, 191, , 195
ESP10, 289, 340, 389, 423, 460, 193, , 197
ESP10, 294, 347, 399, 432, 464, 196, , 200
ESP10, 288, 342, 395, 433, 463, 198, , 202
ESP10, 283, 338, 391, 431, 460, 200, , 204
ESP10, 293, 344, 395, 435, 468, 202, , 206
ESP10, 273, 326, 376, 415, 448, 204, , 208
ESP10, 261, 315, 363, 402, 436, 206, , 210
ESP10, 257, 312, 364, 400, 432, 208, , 212
ESP10, 249, 301, 356, 389, 423, 211, , 215
ESP10, 271, 320, 368, 403, 442, 213, , 217
ESP10, 261, 316, 361, 395, 434, 215, , 219
ESP10, 241, 295, 341, 377, 413, 217, , 221
ESP10, 237, 288, 334, 372, 405, 219, , 223
ESP10, 247, 297, 343, 381, 416, 221, , 225
ESP10, 264, 310, 357, 395, 430, 224, , 228
ESP10, 263, 309, 356, 397, 427, 226, , 230
ESP10, 266, 308, 356, 395, 428, 228, , 232
ESP10, 267, 309, 357, 396, 429, 230, , 234
ESP10, 263, 304, 353, 393, 425, 232, , 236
ESP10, 257, 299, 347, 388, 419, 234, , 238
ESP10, 247, 292, 336, 379, 411, 237, , 241
ESP10, 244, 290, 334, 378, 408, 239, , 243
ESP10, 239, 288, 333, 376, 405, 241, , 245
ESP10, 251, 304, 345, 389, 416, 243, , 247
ESP10, 254, 308, 349, 392, 419, 245, , 249
ESP10, 264, 317, 363, 400, 426, 247, , 251
ESP10, 265, 318, 362, 399, 425, 250, , 254
ESP10, 262, 314, 362, 396, 421, 252, , 256
ESP10, 255, 308, 358, 389, 413, 254, , 258
ESP10, 263, 318, 364, 397, 420, 256, , 260
ESP10, 274, 319, 366, 405, 428, 258, , 262
ESP10, 278, 318, 365, 405, 428, 260, , 264
ESP10, 264, 306, 352, 392, 417, 263, , 267
ESP10, 266, 311, 354, 396, 418, 265, , 269
ESP10, 270, 316, 357, 401, 422, 267, , 271
ESP10, 263, 313, 354, 395, 418, 269, , 273
ESP10, 267, 316, 355, 395, 417, 271, , 275
ESP10, 272, 326, 359, 399, 420, 273, , 277
ESP10, 275, 330, 361, 401, 421, 275, , 279
ESP10, 279, 332, 363, 403, 421, 278, , 282
ESP10, 284, 331, 364, 402, 424, 280, , 284
ESP10, 271, 322, 358, 390, 417, 282, , 286
ESP10, 269, 324, 359, 391, 420, 284, , 288
ESP10, 271, 325, 361, 391, 420, 286, , 290
ESP10, 278, 328, 366, 393, 422, 288, , 292
ESP10, 277, 327, 371, 394, 421, 291, , 295
ESP10, 281, 332, 373, 402, 423, 293, , 297
ESP10, 283, 336, 374, 402, 423, 295, , 299
ESP10, 284, 333, 369, 398, 420, 297, , 301
ESP10, 282, 329, 365, 396, 416, 299, , 303
ESP10, 290, 337, 372, 402, 423, 301, , 305
ESP10, 290, 341, 372, 403, 431, 304, , 308
ESP10, 305, 348, 382, 411, 440, 306, , 310
ESP10, 309, 349, 382, 409, 438, 308, , 312
ESP10, 315, 355, 390, 415, 442, 310, , 314
ESP10, 315, 354, 390, 413, 440, 312, , 316
ESP10, 324, 361, 398, 420, 446, 314, , 318
ESP10, 322, 362, 396, 417, 444, 317, , 321
ESP10, 315, 355, 389, 409, 438, 319, , 323
ESP10, 315, 354, 388, 411, 438, 321, , 325
ESP10, 316, 357, 388, 410, 441, 323, , 327
ESP10, 322, 359, 390, 413, 449, 325, , 329
ESP10, 323, 358, 393, 412, 448, 327, , 331
ESP10, 323, 360, 392, 414, 447, 330, , 334
ESP10, 321, 358, 390, 412, 444, 332, , 336
ESP10, 320, 352, 383, 405, 437, 334, , 338
ESP10, 319, 356, 384, 405, 438, 336, , 340
ESP10, 318, 357, 382, 405, 435, 338, , 342
ESP10, 320, 358, 386, 406, 435, 340, , 344
ESP10, 317, 354, 381, 402, 431, 342, , 346
ESP10, 326, 364, 391, 412, 438, 345, , 349
ESP10, 326, 367, 391, 413, 438, 347, , 351
ESP10, 330, 368, 391, 417, 440, 349, , 353
ESP10, 334, 368, 393, 418, 440, 351, , 355
ESP10, 338, 373, 395, 420, 441, 353, , 357
ESP10, 332, 366, 396, 412, 435, 355, , 359
ESP10, 337, 366, 396, 412, 435, 358, , 362
ESP10, 336, 366, 394, 411, 433, 360, , 364
ESP10, 333, 364, 386, 406, 428, 362, , 366
ESP10, 335, 365, 386, 408, 429, 364, , 368
ESP10, 346, 372, 395, 419, 438, 366, , 370
ESP10, 340, 366, 390, 413, 432, 368, , 372
ESP10, 345, 370, 395, 417, 437, 371, , 375
ESP10, 339, 370, 395, 411, 433, 373, , 377
ESP10, 345, 372, 399, 416, 435, 375, , 379
ESP10, 342, 373, 400, 415, 433, 377, , 381
ESP10, 360, 393, 420, 434, 449, 379, , 383
ESP10, 367, 402, 426, 441, 455, 381, , 385
ESP10, 374, 405, 428, 442, 457, 384, , 388
ESP10, 381, 411, 433, 448, 462, 386, , 390
ESP10, 380, 409, 430, 445, 459, 388, , 392
ESP10, 380, 409, 428, 446, 456, 390, , 394
ESP10, 378, 408, 424, 444, 452, 392, , 396
ESP10, 381, 408, 426, 445, 452, 394, , 398
ESP10, 379, 403, 421, 441, 448, 397, , 401
ESP10, 372, 395, 416, 433, 441, 399, , 403
ESP10, 370, 392, 414, 428, 439, 401, , 405
ESP10, 359, 382, 404, 420, 429, 403, , 407
ESP10, 356, 382, 401, 416, 426, 405, , 409
ESP10, 348, 375, 394, 411, 418, 407, , 411
ESP10, 344, 370, 389, 405, 413, 409, , 413
ESP10, 342, 366, 387, 400, 408, 412, , 416
ESP10, 355, 381, 400, 412, 421, 414, , 418
ESP10, 352, 379, 395, 411, 422, 416, , 420
ESP10, 340, 368, 384, 401, 412, 418, , 422
ESP10, 337, 364, 384, 398, 412, 420, , 424
ESP10, 337, 362, 384, 399, 411, 422, , 426
ESP10, 339, 361, 379, 397, 411, 425, , 429
ESP10, 346, 362, 379, 396, 409, 427, , 431
ESP10, 342, 357, 375, 391, 404, 429, , 433
ESP10, 343, 358, 377, 393, 402, 431, , 435
ESP10, 347, 362, 379, 396, 405, 433, , 437
ESP10, 351, 363, 383, 397, 407, 435, , 439
ESP10, 357, 369, 389, 402, 411, 438, , 442
ESP10, 357, 371, 391, 401, 411, 440, , 444
ESP10, 354, 369, 388, 398, 408, 442, , 446
ESP10, 351, 367, 384, 395, 405, 444, , 448
ESP10, 349, 363, 379, 391, 400, 446, , 450
ESP10, 356, 371, 387, 397, 405, 448, , 452
ESP10, 354, 370, 388, 397, 405, 451, , 455
ESP10, 356, 371, 388, 397, 406, 453, , 457
ESP10, 358, 372, 389, 399, 407, 455, , 459
ESP10, 359, 375, 389, 400, 408, 457, , 461
ESP10, 359, 376, 389, 400, 408, 459, , 463
ESP10, 358, 369, 385, 395, 402, 461, , 465
ESP10, 359, 373, 387, 396, 403, 464, , 468
ESP10, 361, 376, 390, 399, 408, 466, , 470
ESP10, 362, 378, 390, 400, 408, 468, , 472
ESP10, 370, 387, 401, 411, 418, 470, , 474
ESP10, 385, 402, 415, 427, 434, 472, , 476
ESP10, 387, 403, 415, 427, 436, 474, , 478
ESP10, 386, 402, 414, 426, 434, 476, , 480
ESP10, 381, 398, 410, 422, 429, 479, , 483
ESP10, 385, 396, 411, 420, 428, 481, , 485
ESP10, 386, 399, 412, 421, 429, 483, , 487
ESP10, 384, 398, 410, 420, 429, 485, , 489
ESP10, 383, 396, 410, 418, 427, 487, , 491
ESP10, 382, 396, 411, 418, 425, 489, , 493
ESP10, 382, 396, 410, 417, 424, 492, , 496
ESP10, 384, 399, 412, 418, 426, 494, , 498
ESP10, 383, 399, 411, 416, 426, 496, , 500
ESP10, 382, 398, 409, 415, 425, 498, , 502
ESP10, 385, 399, 410, 416, 426, 500, , 504
ESP10, 388, 401, 412, 417, 427, 502, , 506
ESP10, 398, 410, 423, 428, 438, 505, , 509
ESP10, 401, 412, 423, 427, 439, 507, , 511
ESP10, 405, 416, 427, 431, 442, 509, , 513
ESP10, 405, 415, 427, 430, 441, 511, , 515
ESP10, 404, 415, 427, 432, 440, 513, , 517
ESP10, 403, 410, 422, 429, 434, 515, , 519
ESP10, 405, 412, 423, 430, 435, 518, , 522
ESP10, 421, 428, 436, 443, 448, 520, , 524
ESP10, 421, 428, 435, 443, 449, 522, , 526
ESP10, 423, 428, 435, 443, 449, 524, , 528
ESP10, 424, 430, 437, 444, 451, 526, , 530
ESP10, 424, 432, 437, 445, 450, 528, , 532
ESP10, 424, 431, 437, 444, 450, 531, , 535
ESP10, 426, 434, 439, 446, 453, 533, , 537
ESP10, 412, 422, 427, 434, 441, 535, , 539
ESP10, 414, 422, 429, 435, 441, 537, , 541
ESP10, 415, 422, 430, 437, 441, 539, , 543
ESP10, 416, 423, 430, 437, 442, 541, , 545
ESP10, 419, 424, 432, 437, 443, 543, , 547
ESP10, 419, 425, 431, 437, 443, 546, , 550
ESP10, 422, 429, 435, 440, 446, 548, , 552
ESP10, 418, 424, 431, 436, 441, 550, , 554
ESP10, 418, 423, 431, 437, 441, 552, , 556
ESP10, 423, 427, 435, 441, 445, 554, , 558
ESP10, 421, 426, 432, 439, 443, 556, , 560
ESP10, 420, 425, 431, 437, 442, 559, , 563
ESP10, 420, 424, 430, 437, 441, 561, , 565
ESP10, 421, 424, 431, 437, 441, 563, , 567
ESP10, 422, 425, 432, 438, 442, 565, , 569
ESP10, 421, 425, 431, 437, 441, 567, , 571
ESP10, 419, 422, 428, 433, 437, 569, , 573
ESP10, 418, 421, 428, 433, 437, 572, , 576
ESP10, 423, 426, 432, 437, 441, 574, , 578
ESP10, 424, 427, 434, 438, 442, 576, , 580
ESP10, 423, 426, 433, 436, 440, 578, , 582
ESP10, 424, 428, 434, 437, 441, 580, , 584
ESP10, 423, 428, 433, 437, 440, 582, , 586
ESP10, 423, 429, 434, 437, 441, 585, , 589
ESP10, 423, 428, 433, 436, 439, 587, , 591
ESP10, 421, 426, 431, 434, 437, 589, , 593
ESP10, 425, 429, 434, 437, 439, 591, , 595
ESP10, 426, 430, 435, 437, 440, 593, , 597
ESP10, 428, 432, 436, 439, 441, 595, , 599
ESP10, 427, 432, 436, 439, 441, 598, , 602
ESP10, 426, 431, 435, 438, 439, 600, , 604
ESP10, 428, 433, 437, 440, 441, 602, , 606
ESP10, 427, 431, 436, 439, 440, 604, , 608
ESP10, 425, 430, 434, 437, 438, 606, , 610
ESP10, 425, 429, 434, 436, 437, 608, , 612
ESP10, 425, 430, 434, 436, 437, 610, , 614
ESP10, 426, 430, 434, 436, 438, 613, , 617
ESP10, 426, 431, 435, 437, 438, 615, , 619
ESP10, 426, 430, 435, 436, 438, 617, , 621
ESP10, 425, 429, 433, 434, 436, 619, , 623
ESP10, 427, 430, 433, 435, 438, 621, , 625
ESP10, 428, 430, 433, 435, 437, 623, , 627
ESP10, 429, 431, 433, 435, 437, 626, , 630
ESP10, 429, 431, 434, 435, 437, 628, , 632
ESP10, 429, 431, 434, 436, 437, 630, , 634
ESP10, 429, 431, 434, 436, 437, 632, , 636
ESP10, 430, 432, 434, 435, 437, 634, , 638
ESP10, 430, 432, 434, 436, 437, 636, , 640
ESP10, 429, 432, 434, 435, 437, 639, , 643
ESP10, 431, 433, 435, 437, 438, 641, , 645
ESP10, 430, 433, 434, 436, 437, 643, , 647
ESP10, 432, 433, 435, 437, 438, 645, , 649
ESP10, 431, 433, 435, 437, 438, 647, , 651
ESP10, 431, 433, 435, 437, 438, 649, , 653
ESP10, 432, 434, 437, 438, 439, 652, , 656
ESP10, 429, 431, 432, 433, 434, 654, , 658
ESP10, 429, 431, 432, 433, 434, 656, , 660
ESP10, 429, 431, 432, 433, 434, 658, , 662
ESP10, 430, 432, 432, 433, 434, 660, , 664
ESP10, 430, 431, 432, 433, 434, 662, , 666
ESP10, 426, 429, 430, 431, 431, 665, , 669
ESP10, 426, 429, 430, 430, 431, 667, , 671
ESP10, 427, 429, 430, 431, 431, 669, , 673
ESP10, 427, 429, 430, 431, 431, 671, , 675
ESP10, 427, 429, 430, 430, 431, 673, , 677
ESP10, 425, 427, 428, 429, 429, 675, , 679
ESP10, 426, 428, 429, 429, 430, 677, , 681
ESP10, 428, 429, 430, 430, 431, 680, , 684
ESP10, 426, 428, 429, 429, 430, 682, , 686
ESP10, 426, 428, 428, 429, 429, 684, , 688
ESP10, 428, 429, 430, 430, 431, 686, , 690
ESP10, 428, 429, 430, 431, 431, 688, , 692
ESP10, 428, 429, 430, 430, 431, 690, , 694
ESP10, 426, 427, 428, 429, 429, 693, , 697
ESP10, 416, 420, 423, 424, 425, 695, , 699
ESP10, 423, 425, 427, 427, 428, 697, , 701
ESP10, 423, 424, 426, 427, 427, 699, , 703
ESP10, 423, 424, 426, 427, 427, 701, , 705
ESP10, 423, 424, 426, 426, 427, 703, , 707
ESP10, 422, 424, 425, 426, 426, 706, , 710
ESP10, 421, 422, 424, 425, 425, 708, , 712
ESP10, 423, 424, 425, 426, 426, 710, , 714
ESP10, 423, 424, 425, 426, 426, 712, , 716
ESP10, 424, 425, 426, 426, 426, 714, , 718
ESP10, 426, 426, 427, 428, 428, 716, , 720
ESP10, 428, 429, 430, 430, 431, 719, , 723
ESP10, 430, 431, 432, 432, 432, 721, , 725
ESP10, 430, 431, 432, 432, 432, 723, , 727
ESP10, 430, 431, 432, 432, 432, 725, , 729
ESP10, 430, 431, 432, 432, 432, 727, , 731
ESP10, 430, 431, 432, 432, 432, 729, , 733
ESP10, 431, 432, 432, 433, 433, 732, , 736
ESP10, 431, 432, 432, 433, 433, 734, , 738
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/STHW1W_SQIN.ESPF10.csv
STHW1W_SQIN.ESPF0.csv|2026-08-05
STHW1W_SQIN.ESPF10.csv|2026-08-05
STHW1W_SQIN.ESPFM.csv|2026-08-05
APR-SEP
STEHEKIN - AT STEHEKIN
(
STHW1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-05
Issued:
2026-08-05
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
483
712
87
1045
814
APR-JUL
439
625
88
847
710
APR-AUG
466
680
87
975
778
JAN-SEP
552
825
90
1136
913
JAN-JUL
503
730
90
944
809
OCT-SEP
590
934
89
1210
1046
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/STHW1W_SQIN.ESPF10.csv
STHW1W_SQIN.ESPF0.csv|2026-08-05
STHW1W_SQIN.ESPF10.csv|2026-08-05
STHW1W_SQIN.ESPFM.csv|2026-08-05
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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