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Archive:
Water Year
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SPOKANE - AT SPOKANE
(
SPOW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1465
1466
57
1467
2587
APR-JUL
1392
1392
56
1392
2475
APR-AUG
1422
1422
56
1422
2540
JAN-SEP
3235
3236
80
3237
4038
JAN-JUL
3162
3162
81
3162
3926
OCT-SEP
4337
4338
95
4340
4584
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
1465
1466
57
1467
2587
APR-JUL
1392
1392
56
1392
2475
APR-AUG
1422
1422
56
1422
2540
JAN-SEP
3235
3236
80
3237
4038
JAN-JUL
3162
3162
81
3162
3926
OCT-SEP
4337
4338
95
4340
4584
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
1473
1473
57
1476
2587
APR-JUL
1392
1392
56
1392
2475
APR-AUG
1428
1429
56
1429
2540
JAN-SEP
3243
3244
80
3246
4038
JAN-JUL
3162
3162
81
3162
3926
OCT-SEP
4345
4346
95
4349
4584
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 261, 324, 384, 428, 453, 70, , 74
ESP10, 259, 324, 383, 427, 452, 72, , 76
ESP10, 259, 324, 384, 428, 451, 74, , 78
ESP10, 259, 325, 384, 428, 451, 76, , 80
ESP10, 260, 326, 385, 428, 451, 78, , 82
ESP10, 258, 326, 384, 427, 451, 81, , 85
ESP10, 259, 327, 385, 428, 451, 83, , 87
ESP10, 261, 327, 385, 428, 452, 85, , 89
ESP10, 260, 327, 384, 427, 451, 87, , 91
ESP10, 257, 325, 382, 426, 450, 89, , 93
ESP10, 256, 326, 382, 425, 450, 91, , 95
ESP10, 259, 327, 383, 426, 450, 93, , 97
ESP10, 258, 326, 382, 426, 452, 95, , 99
ESP10, 258, 326, 382, 425, 453, 97, , 101
ESP10, 255, 326, 381, 424, 452, 99, , 103
ESP10, 249, 324, 379, 423, 450, 102, , 106
ESP10, 246, 322, 377, 421, 447, 104, , 108
ESP10, 247, 322, 378, 422, 448, 106, , 110
ESP10, 247, 322, 377, 422, 448, 108, , 112
ESP10, 251, 324, 379, 423, 450, 110, , 114
ESP10, 243, 317, 374, 417, 444, 112, , 116
ESP10, 248, 324, 381, 422, 449, 114, , 118
ESP10, 246, 324, 379, 421, 447, 116, , 120
ESP10, 249, 327, 383, 423, 450, 118, , 122
ESP10, 250, 329, 385, 424, 451, 120, , 124
ESP10, 249, 330, 384, 425, 450, 122, , 126
ESP10, 248, 331, 384, 425, 449, 125, , 129
ESP10, 248, 331, 385, 426, 450, 127, , 131
ESP10, 247, 331, 384, 427, 449, 129, , 133
ESP10, 245, 329, 381, 425, 447, 131, , 135
ESP10, 244, 329, 383, 424, 447, 133, , 137
ESP10, 249, 330, 384, 425, 448, 135, , 139
ESP10, 252, 332, 384, 426, 447, 137, , 141
ESP10, 255, 336, 386, 426, 452, 139, , 143
ESP10, 257, 337, 386, 426, 453, 141, , 145
ESP10, 261, 339, 390, 427, 455, 143, , 147
ESP10, 264, 339, 392, 428, 454, 145, , 149
ESP10, 262, 334, 391, 425, 452, 148, , 152
ESP10, 265, 333, 392, 425, 452, 150, , 154
ESP10, 264, 333, 392, 426, 452, 152, , 156
ESP10, 269, 338, 399, 429, 456, 154, , 158
ESP10, 270, 337, 399, 431, 457, 156, , 160
ESP10, 268, 334, 399, 428, 455, 158, , 162
ESP10, 275, 341, 409, 433, 463, 160, , 164
ESP10, 274, 341, 408, 431, 462, 162, , 166
ESP10, 271, 341, 407, 431, 460, 164, , 168
ESP10, 272, 343, 405, 431, 459, 166, , 170
ESP10, 278, 348, 412, 437, 465, 169, , 173
ESP10, 275, 348, 410, 436, 464, 171, , 175
ESP10, 275, 347, 410, 438, 464, 173, , 177
ESP10, 268, 340, 403, 435, 459, 175, , 179
ESP10, 274, 340, 403, 436, 463, 177, , 181
ESP10, 278, 335, 399, 436, 459, 179, , 183
ESP10, 289, 344, 405, 445, 467, 181, , 185
ESP10, 282, 338, 402, 442, 462, 183, , 187
ESP10, 285, 342, 404, 445, 466, 185, , 189
ESP10, 278, 335, 398, 440, 459, 187, , 191
ESP10, 279, 337, 400, 443, 461, 189, , 193
ESP10, 282, 341, 403, 443, 462, 192, , 196
ESP10, 261, 322, 385, 432, 448, 194, , 198
ESP10, 265, 328, 391, 438, 450, 196, , 200
ESP10, 269, 335, 396, 440, 453, 198, , 202
ESP10, 265, 329, 392, 437, 450, 200, , 204
ESP10, 257, 315, 378, 424, 438, 202, , 206
ESP10, 273, 327, 393, 436, 451, 204, , 208
ESP10, 264, 317, 386, 429, 442, 206, , 210
ESP10, 287, 335, 404, 442, 459, 208, , 212
ESP10, 293, 341, 407, 447, 463, 210, , 214
ESP10, 304, 351, 412, 451, 469, 212, , 216
ESP10, 297, 341, 404, 444, 460, 215, , 219
ESP10, 281, 328, 391, 431, 448, 217, , 221
ESP10, 278, 328, 388, 428, 446, 219, , 223
ESP10, 273, 322, 385, 428, 446, 221, , 225
ESP10, 274, 323, 382, 426, 445, 223, , 227
ESP10, 283, 333, 388, 433, 453, 225, , 229
ESP10, 287, 336, 390, 434, 455, 227, , 231
ESP10, 287, 336, 390, 433, 456, 229, , 233
ESP10, 290, 341, 392, 431, 455, 231, , 235
ESP10, 292, 339, 391, 429, 454, 233, , 237
ESP10, 298, 343, 393, 429, 453, 236, , 240
ESP10, 306, 352, 399, 435, 458, 238, , 242
ESP10, 315, 358, 406, 439, 461, 240, , 244
ESP10, 320, 362, 412, 443, 465, 242, , 246
ESP10, 319, 360, 412, 440, 466, 244, , 248
ESP10, 313, 354, 408, 434, 463, 246, , 250
ESP10, 307, 349, 404, 428, 461, 248, , 252
ESP10, 309, 349, 404, 428, 464, 250, , 254
ESP10, 315, 351, 408, 432, 467, 252, , 256
ESP10, 315, 350, 408, 431, 465, 254, , 258
ESP10, 321, 354, 411, 435, 468, 256, , 260
ESP10, 330, 365, 415, 447, 474, 259, , 263
ESP10, 331, 364, 412, 445, 472, 261, , 265
ESP10, 321, 355, 403, 437, 466, 263, , 267
ESP10, 324, 363, 407, 440, 468, 265, , 269
ESP10, 320, 361, 405, 438, 465, 267, , 271
ESP10, 319, 360, 405, 436, 462, 269, , 273
ESP10, 321, 363, 407, 438, 463, 271, , 275
ESP10, 320, 367, 407, 439, 462, 273, , 277
ESP10, 324, 369, 407, 443, 462, 275, , 279
ESP10, 327, 374, 408, 443, 462, 277, , 281
ESP10, 330, 376, 409, 445, 464, 279, , 283
ESP10, 330, 378, 409, 446, 464, 282, , 286
ESP10, 330, 381, 409, 446, 464, 284, , 288
ESP10, 329, 380, 407, 444, 464, 286, , 290
ESP10, 330, 382, 406, 443, 464, 288, , 292
ESP10, 332, 382, 405, 441, 463, 290, , 294
ESP10, 336, 382, 403, 439, 461, 292, , 296
ESP10, 339, 382, 405, 440, 461, 294, , 298
ESP10, 342, 382, 405, 439, 460, 296, , 300
ESP10, 353, 393, 412, 448, 466, 298, , 302
ESP10, 355, 391, 410, 445, 466, 300, , 304
ESP10, 363, 394, 413, 449, 469, 303, , 307
ESP10, 365, 396, 414, 452, 469, 305, , 309
ESP10, 369, 400, 421, 455, 472, 307, , 311
ESP10, 369, 401, 421, 455, 472, 309, , 313
ESP10, 369, 399, 420, 454, 472, 311, , 315
ESP10, 371, 402, 422, 455, 474, 313, , 317
ESP10, 369, 405, 422, 453, 475, 315, , 319
ESP10, 371, 407, 424, 453, 479, 317, , 321
ESP10, 378, 409, 428, 455, 480, 319, , 323
ESP10, 383, 411, 431, 457, 482, 321, , 325
ESP10, 381, 408, 431, 453, 479, 323, , 327
ESP10, 385, 409, 433, 455, 480, 326, , 330
ESP10, 388, 411, 434, 456, 480, 328, , 332
ESP10, 389, 412, 436, 458, 480, 330, , 334
ESP10, 386, 411, 433, 455, 479, 332, , 336
ESP10, 383, 409, 432, 453, 478, 334, , 338
ESP10, 385, 413, 438, 457, 479, 336, , 340
ESP10, 380, 412, 433, 456, 474, 338, , 342
ESP10, 380, 412, 433, 457, 473, 340, , 344
ESP10, 376, 406, 429, 451, 469, 342, , 346
ESP10, 379, 406, 430, 453, 472, 344, , 348
ESP10, 373, 400, 423, 447, 467, 346, , 350
ESP10, 376, 403, 425, 449, 469, 349, , 353
ESP10, 372, 399, 421, 444, 466, 351, , 355
ESP10, 369, 395, 417, 439, 468, 353, , 357
ESP10, 373, 397, 417, 441, 469, 355, , 359
ESP10, 377, 403, 421, 446, 475, 357, , 361
ESP10, 363, 389, 409, 434, 464, 359, , 363
ESP10, 371, 398, 416, 443, 471, 361, , 365
ESP10, 369, 396, 415, 444, 470, 363, , 367
ESP10, 375, 400, 419, 449, 473, 365, , 369
ESP10, 376, 403, 419, 450, 473, 367, , 371
ESP10, 378, 400, 418, 449, 471, 370, , 374
ESP10, 382, 404, 420, 451, 472, 372, , 376
ESP10, 386, 408, 427, 452, 474, 374, , 378
ESP10, 391, 410, 428, 452, 474, 376, , 380
ESP10, 385, 405, 421, 446, 468, 378, , 382
ESP10, 384, 402, 421, 444, 465, 380, , 384
ESP10, 384, 402, 423, 444, 464, 382, , 386
ESP10, 389, 408, 426, 447, 468, 384, , 388
ESP10, 390, 410, 427, 449, 469, 386, , 390
ESP10, 383, 404, 420, 442, 462, 388, , 392
ESP10, 376, 399, 414, 437, 457, 390, , 394
ESP10, 371, 396, 411, 434, 453, 393, , 397
ESP10, 364, 389, 404, 430, 446, 395, , 399
ESP10, 364, 389, 409, 431, 445, 397, , 401
ESP10, 365, 391, 410, 432, 446, 399, , 403
ESP10, 363, 394, 411, 432, 447, 401, , 405
ESP10, 361, 394, 411, 431, 448, 403, , 407
ESP10, 356, 389, 406, 426, 443, 405, , 409
ESP10, 352, 385, 405, 423, 443, 407, , 411
ESP10, 353, 385, 405, 425, 444, 409, , 413
ESP10, 357, 392, 408, 429, 450, 411, , 415
ESP10, 355, 390, 408, 427, 448, 413, , 417
ESP10, 352, 387, 405, 426, 443, 416, , 420
ESP10, 348, 385, 401, 425, 437, 418, , 422
ESP10, 351, 389, 407, 429, 440, 420, , 424
ESP10, 354, 390, 411, 430, 442, 422, , 426
ESP10, 363, 393, 417, 432, 445, 424, , 428
ESP10, 368, 392, 417, 430, 445, 426, , 430
ESP10, 371, 392, 416, 430, 445, 428, , 432
ESP10, 369, 392, 414, 431, 444, 430, , 434
ESP10, 360, 382, 402, 421, 435, 432, , 436
ESP10, 356, 380, 396, 416, 431, 434, , 438
ESP10, 371, 394, 409, 429, 442, 437, , 441
ESP10, 363, 385, 400, 416, 428, 439, , 443
ESP10, 368, 391, 405, 421, 433, 441, , 445
ESP10, 368, 390, 410, 421, 435, 443, , 447
ESP10, 371, 392, 412, 424, 438, 445, , 449
ESP10, 377, 398, 417, 431, 443, 447, , 451
ESP10, 376, 398, 417, 431, 442, 449, , 453
ESP10, 375, 398, 417, 431, 441, 451, , 455
ESP10, 380, 402, 425, 437, 446, 453, , 457
ESP10, 380, 404, 427, 438, 445, 455, , 459
ESP10, 377, 402, 426, 436, 442, 457, , 461
ESP10, 379, 404, 428, 440, 444, 460, , 464
ESP10, 384, 406, 430, 442, 445, 462, , 466
ESP10, 378, 399, 424, 438, 440, 464, , 468
ESP10, 368, 391, 414, 428, 431, 466, , 470
ESP10, 367, 391, 412, 427, 430, 468, , 472
ESP10, 377, 401, 423, 437, 439, 470, , 474
ESP10, 374, 400, 420, 434, 438, 472, , 476
ESP10, 379, 404, 422, 436, 440, 474, , 478
ESP10, 389, 405, 424, 435, 441, 476, , 480
ESP10, 400, 418, 436, 446, 451, 478, , 482
ESP10, 391, 412, 428, 438, 443, 480, , 484
ESP10, 402, 420, 436, 445, 450, 483, , 487
ESP10, 400, 416, 431, 441, 445, 485, , 489
ESP10, 401, 416, 431, 440, 446, 487, , 491
ESP10, 404, 420, 434, 444, 448, 489, , 493
ESP10, 406, 421, 435, 446, 449, 491, , 495
ESP10, 403, 418, 433, 444, 447, 493, , 497
ESP10, 412, 424, 440, 450, 453, 495, , 499
ESP10, 409, 422, 439, 448, 451, 497, , 501
ESP10, 411, 424, 442, 449, 453, 499, , 503
ESP10, 409, 424, 441, 447, 451, 501, , 505
ESP10, 409, 425, 443, 448, 452, 504, , 508
ESP10, 411, 425, 442, 447, 449, 506, , 510
ESP10, 412, 427, 443, 448, 450, 508, , 512
ESP10, 413, 430, 446, 450, 454, 510, , 514
ESP10, 415, 431, 447, 450, 454, 512, , 516
ESP10, 418, 434, 447, 451, 455, 514, , 518
ESP10, 419, 435, 447, 452, 455, 516, , 520
ESP10, 419, 438, 447, 452, 456, 518, , 522
ESP10, 419, 437, 449, 452, 455, 520, , 524
ESP10, 420, 439, 449, 452, 455, 522, , 526
ESP10, 420, 440, 449, 453, 455, 524, , 528
ESP10, 422, 439, 451, 453, 456, 527, , 531
ESP10, 420, 438, 449, 452, 455, 529, , 533
ESP10, 423, 442, 450, 453, 456, 531, , 535
ESP10, 424, 444, 450, 453, 456, 533, , 537
ESP10, 424, 445, 451, 453, 455, 535, , 539
ESP10, 428, 445, 451, 454, 455, 537, , 541
ESP10, 426, 442, 448, 452, 454, 539, , 543
ESP10, 427, 443, 448, 452, 455, 541, , 545
ESP10, 427, 443, 447, 451, 454, 543, , 547
ESP10, 426, 443, 448, 450, 453, 545, , 549
ESP10, 426, 444, 448, 451, 453, 547, , 551
ESP10, 426, 445, 449, 451, 453, 550, , 554
ESP10, 429, 442, 447, 450, 451, 552, , 556
ESP10, 429, 439, 445, 448, 449, 554, , 558
ESP10, 429, 440, 445, 448, 449, 556, , 560
ESP10, 430, 441, 446, 448, 449, 558, , 562
ESP10, 430, 439, 445, 447, 448, 560, , 564
ESP10, 429, 439, 444, 447, 447, 562, , 566
ESP10, 430, 438, 444, 445, 445, 564, , 568
ESP10, 436, 441, 446, 447, 447, 566, , 570
ESP10, 441, 446, 449, 450, 450, 568, , 572
ESP10, 439, 445, 448, 449, 449, 571, , 575
ESP10, 440, 446, 449, 449, 449, 573, , 577
ESP10, 440, 446, 449, 450, 450, 575, , 579
ESP10, 441, 447, 449, 449, 449, 577, , 581
ESP10, 444, 448, 450, 451, 451, 579, , 583
ESP10, 444, 447, 449, 449, 450, 581, , 585
ESP10, 441, 446, 447, 447, 448, 583, , 587
ESP10, 443, 446, 448, 448, 448, 585, , 589
ESP10, 446, 448, 449, 449, 449, 587, , 591
ESP10, 447, 449, 449, 449, 449, 589, , 593
ESP10, 447, 448, 449, 449, 449, 591, , 595
ESP10, 448, 449, 450, 450, 450, 594, , 598
ESP10, 447, 448, 448, 449, 449, 596, , 600
ESP10, 447, 449, 449, 449, 449, 598, , 602
ESP10, 447, 449, 449, 449, 449, 600, , 604
ESP10, 447, 449, 449, 449, 449, 602, , 606
ESP10, 448, 449, 449, 449, 449, 604, , 608
ESP10, 446, 448, 448, 448, 448, 606, , 610
ESP10, 446, 448, 448, 448, 448, 608, , 612
ESP10, 446, 448, 448, 448, 448, 610, , 614
ESP10, 450, 451, 451, 451, 451, 612, , 616
ESP10, 450, 451, 451, 451, 451, 614, , 618
ESP10, 450, 451, 451, 451, 451, 617, , 621
ESP10, 450, 451, 451, 451, 451, 619, , 623
ESP10, 450, 451, 451, 451, 451, 621, , 625
ESP10, 450, 451, 451, 451, 451, 623, , 627
ESP10, 451, 452, 452, 452, 452, 625, , 629
ESP10, 451, 451, 452, 452, 452, 627, , 631
ESP10, 451, 451, 451, 451, 452, 629, , 633
ESP10, 451, 451, 451, 451, 451, 631, , 635
ESP10, 451, 451, 451, 451, 451, 633, , 637
ESP10, 450, 451, 451, 451, 451, 635, , 639
ESP10, 449, 450, 450, 450, 450, 638, , 642
ESP10, 451, 451, 451, 451, 452, 640, , 644
ESP10, 451, 451, 451, 451, 451, 642, , 646
ESP10, 451, 451, 451, 451, 451, 644, , 648
ESP10, 451, 451, 451, 451, 451, 646, , 650
ESP10, 450, 451, 451, 451, 451, 648, , 652
ESP10, 450, 451, 451, 451, 451, 650, , 654
ESP10, 451, 451, 451, 451, 451, 652, , 656
ESP10, 450, 450, 450, 450, 451, 654, , 658
ESP10, 450, 451, 451, 451, 451, 656, , 660
ESP10, 451, 451, 451, 451, 451, 658, , 662
ESP10, 451, 451, 451, 451, 451, 661, , 665
ESP10, 451, 451, 451, 452, 452, 663, , 667
ESP10, 450, 450, 451, 451, 451, 665, , 669
ESP10, 452, 452, 452, 452, 452, 667, , 671
ESP10, 452, 452, 452, 453, 453, 669, , 673
ESP10, 452, 452, 452, 453, 453, 671, , 675
ESP10, 452, 452, 452, 452, 452, 673, , 677
ESP10, 452, 452, 452, 453, 453, 675, , 679
ESP10, 452, 452, 453, 453, 453, 677, , 681
ESP10, 452, 452, 452, 452, 452, 679, , 683
ESP10, 451, 452, 452, 452, 452, 681, , 685
ESP10, 451, 452, 452, 452, 452, 684, , 688
ESP10, 452, 452, 452, 452, 452, 686, , 690
ESP10, 452, 453, 453, 453, 453, 688, , 692
ESP10, 451, 451, 451, 452, 452, 690, , 694
ESP10, 452, 452, 452, 452, 452, 692, , 696
ESP10, 452, 452, 452, 452, 452, 694, , 698
ESP10, 452, 452, 452, 452, 452, 696, , 700
ESP10, 452, 452, 452, 452, 452, 698, , 702
ESP10, 453, 453, 453, 453, 453, 700, , 704
ESP10, 453, 453, 453, 453, 453, 702, , 706
ESP10, 453, 453, 453, 453, 453, 705, , 709
ESP10, 453, 453, 453, 453, 453, 707, , 711
ESP10, 453, 453, 453, 453, 453, 709, , 713
ESP10, 453, 453, 453, 453, 453, 711, , 715
ESP10, 453, 453, 453, 453, 453, 713, , 717
ESP10, 453, 453, 453, 453, 454, 715, , 719
ESP10, 454, 454, 455, 455, 455, 717, , 721
ESP10, 454, 454, 454, 455, 455, 719, , 723
ESP10, 454, 454, 454, 454, 455, 721, , 725
ESP10, 454, 454, 454, 454, 455, 723, , 727
ESP10, 453, 454, 454, 454, 454, 725, , 729
ESP10, 454, 454, 454, 454, 454, 728, , 732
ESP10, 455, 455, 455, 455, 455, 730, , 734
ESP10, 455, 455, 455, 455, 455, 732, , 736
ESP10, 455, 455, 455, 455, 455, 734, , 738
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/SPOW1W_SQIN.ESPF10.csv
SPOW1W_SQIN.ESPF0.csv|2026-08-15
SPOW1W_SQIN.ESPF10.csv|2026-08-15
SPOW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
SPOKANE - AT SPOKANE
(
SPOW1
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
1501
2246
87
3706
2587
APR-JUL
1405
2129
86
3549
2475
APR-AUG
1461
2198
87
3649
2540
JAN-SEP
2393
3678
91
5273
4038
JAN-JUL
2299
3569
91
5127
3926
OCT-SEP
2668
4183
91
5794
4584
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/SPOW1W_SQIN.ESPF10.csv
SPOW1W_SQIN.ESPF0.csv|2026-08-15
SPOW1W_SQIN.ESPF10.csv|2026-08-15
SPOW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
