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Water Year
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SPOKANE - AT LONGLAKE
(
LLKW1
)
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
1677
1678
58
1680
2901
APR-JUL
1533
1533
57
1533
2714
APR-AUG
1598
1598
57
1598
2817
JAN-SEP
3607
3608
78
3610
4619
JAN-JUL
3464
3464
78
3464
4433
OCT-SEP
4803
4804
91
4805
5295
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
1677
1678
58
1679
2901
APR-JUL
1533
1533
57
1533
2714
APR-AUG
1598
1598
57
1598
2817
JAN-SEP
3607
3608
78
3610
4619
JAN-JUL
3464
3464
78
3464
4433
OCT-SEP
4803
4803
91
4805
5295
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
1685
1686
58
1689
2901
APR-JUL
1533
1533
57
1533
2714
APR-AUG
1604
1604
57
1605
2817
JAN-SEP
3615
3616
78
3619
4619
JAN-JUL
3464
3464
78
3464
4433
OCT-SEP
4810
4811
91
4814
5295
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 261, 330, 387, 429, 457, 70, , 74
ESP10, 259, 329, 386, 429, 455, 72, , 76
ESP10, 259, 330, 386, 429, 455, 74, , 78
ESP10, 259, 331, 386, 429, 454, 76, , 80
ESP10, 260, 331, 388, 429, 455, 78, , 82
ESP10, 258, 331, 387, 429, 454, 81, , 85
ESP10, 259, 331, 387, 429, 455, 83, , 87
ESP10, 261, 333, 388, 429, 456, 85, , 89
ESP10, 260, 331, 387, 429, 455, 87, , 91
ESP10, 257, 330, 385, 428, 453, 89, , 93
ESP10, 256, 331, 384, 428, 453, 91, , 95
ESP10, 258, 332, 385, 428, 454, 93, , 97
ESP10, 258, 332, 385, 428, 455, 95, , 99
ESP10, 258, 332, 385, 428, 455, 97, , 101
ESP10, 255, 331, 383, 426, 453, 99, , 103
ESP10, 248, 327, 380, 424, 450, 102, , 106
ESP10, 243, 321, 376, 422, 448, 104, , 108
ESP10, 246, 324, 378, 423, 449, 106, , 110
ESP10, 246, 325, 377, 424, 449, 108, , 112
ESP10, 250, 329, 381, 425, 450, 110, , 114
ESP10, 242, 321, 372, 420, 447, 112, , 116
ESP10, 247, 328, 382, 424, 449, 114, , 118
ESP10, 244, 325, 380, 421, 448, 116, , 120
ESP10, 248, 332, 386, 425, 451, 118, , 122
ESP10, 249, 334, 391, 426, 453, 120, , 124
ESP10, 247, 333, 389, 426, 452, 122, , 126
ESP10, 247, 334, 388, 428, 452, 125, , 129
ESP10, 247, 335, 388, 429, 454, 127, , 131
ESP10, 245, 335, 387, 429, 453, 129, , 133
ESP10, 242, 332, 385, 427, 451, 131, , 135
ESP10, 242, 333, 387, 426, 451, 133, , 137
ESP10, 246, 334, 388, 427, 452, 135, , 139
ESP10, 249, 334, 388, 426, 451, 137, , 141
ESP10, 253, 339, 390, 429, 454, 139, , 143
ESP10, 255, 341, 391, 429, 455, 141, , 145
ESP10, 259, 343, 394, 430, 457, 143, , 147
ESP10, 261, 343, 395, 429, 456, 145, , 149
ESP10, 260, 338, 395, 425, 454, 148, , 152
ESP10, 263, 338, 396, 426, 454, 150, , 154
ESP10, 262, 337, 394, 423, 454, 152, , 156
ESP10, 267, 340, 401, 429, 457, 154, , 158
ESP10, 268, 339, 400, 431, 459, 156, , 160
ESP10, 266, 336, 401, 429, 457, 158, , 162
ESP10, 274, 344, 411, 434, 465, 160, , 164
ESP10, 272, 343, 409, 432, 465, 162, , 166
ESP10, 269, 342, 407, 431, 464, 164, , 168
ESP10, 270, 341, 406, 431, 463, 166, , 170
ESP10, 276, 347, 411, 435, 467, 169, , 173
ESP10, 273, 346, 410, 434, 466, 171, , 175
ESP10, 273, 346, 410, 437, 467, 173, , 177
ESP10, 266, 338, 403, 433, 462, 175, , 179
ESP10, 272, 339, 405, 433, 466, 177, , 181
ESP10, 276, 336, 400, 435, 462, 179, , 183
ESP10, 288, 345, 407, 444, 469, 181, , 185
ESP10, 281, 340, 403, 439, 464, 183, , 187
ESP10, 286, 343, 406, 444, 467, 185, , 189
ESP10, 282, 337, 400, 438, 461, 187, , 191
ESP10, 283, 341, 402, 441, 462, 189, , 193
ESP10, 286, 345, 405, 443, 464, 192, , 196
ESP10, 266, 327, 387, 430, 450, 194, , 198
ESP10, 268, 331, 393, 434, 452, 196, , 200
ESP10, 272, 337, 397, 437, 455, 198, , 202
ESP10, 269, 333, 393, 434, 452, 200, , 204
ESP10, 261, 318, 381, 423, 440, 202, , 206
ESP10, 277, 330, 395, 434, 453, 204, , 208
ESP10, 268, 320, 389, 428, 443, 206, , 210
ESP10, 291, 337, 406, 442, 458, 208, , 212
ESP10, 297, 341, 409, 445, 461, 210, , 214
ESP10, 307, 350, 414, 450, 467, 212, , 216
ESP10, 302, 342, 406, 444, 460, 215, , 219
ESP10, 286, 328, 394, 433, 449, 217, , 221
ESP10, 284, 329, 392, 430, 447, 219, , 223
ESP10, 279, 324, 388, 431, 446, 221, , 225
ESP10, 279, 323, 383, 427, 444, 223, , 227
ESP10, 288, 334, 390, 434, 451, 225, , 229
ESP10, 292, 337, 392, 436, 452, 227, , 231
ESP10, 292, 341, 394, 436, 453, 229, , 233
ESP10, 296, 343, 394, 434, 453, 231, , 235
ESP10, 298, 342, 394, 432, 452, 233, , 237
ESP10, 302, 345, 396, 432, 451, 236, , 240
ESP10, 311, 353, 403, 438, 456, 238, , 242
ESP10, 319, 359, 409, 441, 459, 240, , 244
ESP10, 324, 366, 414, 445, 466, 242, , 246
ESP10, 324, 365, 414, 443, 469, 244, , 248
ESP10, 317, 359, 410, 437, 465, 246, , 250
ESP10, 311, 353, 407, 431, 462, 248, , 252
ESP10, 313, 354, 407, 431, 464, 250, , 254
ESP10, 320, 356, 410, 435, 467, 252, , 256
ESP10, 320, 353, 412, 434, 466, 254, , 258
ESP10, 326, 358, 415, 438, 468, 256, , 260
ESP10, 334, 369, 419, 448, 474, 259, , 263
ESP10, 335, 368, 416, 446, 473, 261, , 265
ESP10, 325, 358, 407, 439, 466, 263, , 267
ESP10, 328, 368, 411, 443, 468, 265, , 269
ESP10, 324, 365, 408, 440, 465, 267, , 271
ESP10, 322, 364, 408, 438, 463, 269, , 273
ESP10, 324, 367, 410, 440, 463, 271, , 275
ESP10, 324, 369, 410, 441, 463, 273, , 277
ESP10, 328, 371, 410, 445, 464, 275, , 279
ESP10, 331, 374, 411, 445, 464, 277, , 281
ESP10, 334, 376, 412, 447, 465, 279, , 283
ESP10, 335, 376, 412, 447, 464, 282, , 286
ESP10, 334, 376, 412, 448, 464, 284, , 288
ESP10, 333, 376, 409, 446, 462, 286, , 290
ESP10, 334, 380, 408, 445, 462, 288, , 292
ESP10, 338, 381, 408, 444, 461, 290, , 294
ESP10, 339, 382, 407, 442, 459, 292, , 296
ESP10, 342, 384, 408, 443, 460, 294, , 298
ESP10, 346, 385, 407, 442, 458, 296, , 300
ESP10, 357, 392, 414, 450, 465, 298, , 302
ESP10, 359, 391, 413, 447, 464, 300, , 304
ESP10, 367, 397, 417, 451, 467, 303, , 307
ESP10, 368, 398, 418, 453, 468, 305, , 309
ESP10, 371, 403, 424, 455, 471, 307, , 311
ESP10, 371, 403, 425, 456, 472, 309, , 313
ESP10, 371, 401, 425, 455, 472, 311, , 315
ESP10, 373, 402, 427, 455, 476, 313, , 317
ESP10, 373, 402, 426, 454, 476, 315, , 319
ESP10, 375, 404, 427, 453, 479, 317, , 321
ESP10, 382, 409, 432, 455, 481, 319, , 323
ESP10, 386, 413, 435, 457, 482, 321, , 325
ESP10, 384, 411, 434, 454, 479, 323, , 327
ESP10, 388, 411, 436, 455, 480, 326, , 330
ESP10, 390, 412, 437, 456, 480, 328, , 332
ESP10, 392, 413, 440, 459, 480, 330, , 334
ESP10, 389, 414, 437, 457, 479, 332, , 336
ESP10, 386, 411, 435, 454, 478, 334, , 338
ESP10, 390, 414, 441, 458, 479, 336, , 340
ESP10, 385, 412, 436, 458, 474, 338, , 342
ESP10, 384, 413, 436, 459, 474, 340, , 344
ESP10, 380, 407, 433, 454, 470, 342, , 346
ESP10, 383, 408, 434, 455, 473, 344, , 348
ESP10, 377, 402, 428, 448, 468, 346, , 350
ESP10, 380, 405, 429, 450, 470, 349, , 353
ESP10, 377, 402, 424, 446, 469, 351, , 355
ESP10, 373, 397, 419, 442, 470, 353, , 357
ESP10, 377, 398, 420, 444, 471, 355, , 359
ESP10, 382, 404, 424, 449, 478, 357, , 361
ESP10, 368, 392, 412, 438, 467, 359, , 363
ESP10, 377, 400, 419, 446, 474, 361, , 365
ESP10, 373, 399, 417, 446, 473, 363, , 367
ESP10, 380, 404, 421, 451, 476, 365, , 369
ESP10, 381, 406, 422, 452, 476, 367, , 371
ESP10, 383, 404, 421, 451, 474, 370, , 374
ESP10, 387, 408, 423, 452, 476, 372, , 376
ESP10, 391, 412, 429, 454, 477, 374, , 378
ESP10, 395, 414, 430, 455, 478, 376, , 380
ESP10, 390, 409, 423, 449, 471, 378, , 382
ESP10, 388, 406, 422, 447, 469, 380, , 384
ESP10, 389, 407, 425, 447, 467, 382, , 386
ESP10, 392, 413, 428, 451, 471, 384, , 388
ESP10, 394, 415, 430, 452, 472, 386, , 390
ESP10, 386, 409, 424, 446, 466, 388, , 392
ESP10, 380, 404, 417, 441, 460, 390, , 394
ESP10, 375, 401, 414, 438, 456, 393, , 397
ESP10, 369, 394, 407, 434, 449, 395, , 399
ESP10, 368, 395, 412, 435, 448, 397, , 401
ESP10, 369, 397, 414, 436, 450, 399, , 403
ESP10, 367, 398, 415, 435, 450, 401, , 405
ESP10, 366, 398, 414, 435, 451, 403, , 407
ESP10, 360, 393, 410, 430, 447, 405, , 409
ESP10, 357, 389, 408, 427, 447, 407, , 411
ESP10, 356, 388, 408, 428, 446, 409, , 413
ESP10, 361, 395, 411, 433, 453, 411, , 415
ESP10, 359, 393, 411, 431, 451, 413, , 417
ESP10, 356, 389, 409, 429, 446, 416, , 420
ESP10, 351, 386, 404, 428, 439, 418, , 422
ESP10, 355, 389, 410, 432, 442, 420, , 424
ESP10, 357, 391, 413, 433, 444, 422, , 426
ESP10, 367, 394, 420, 435, 448, 424, , 428
ESP10, 371, 393, 418, 433, 447, 426, , 430
ESP10, 375, 393, 417, 433, 447, 428, , 432
ESP10, 373, 393, 417, 433, 446, 430, , 434
ESP10, 363, 383, 404, 423, 437, 432, , 436
ESP10, 359, 381, 398, 418, 433, 434, , 438
ESP10, 374, 396, 413, 431, 444, 437, , 441
ESP10, 364, 386, 401, 419, 430, 439, , 443
ESP10, 369, 392, 407, 424, 436, 441, , 445
ESP10, 370, 391, 413, 424, 437, 443, , 447
ESP10, 374, 393, 415, 427, 441, 445, , 449
ESP10, 380, 399, 420, 433, 445, 447, , 451
ESP10, 379, 401, 421, 434, 445, 449, , 453
ESP10, 379, 401, 421, 434, 444, 451, , 455
ESP10, 383, 406, 428, 440, 448, 453, , 457
ESP10, 382, 407, 430, 441, 447, 455, , 459
ESP10, 379, 405, 429, 439, 445, 457, , 461
ESP10, 381, 408, 431, 442, 446, 460, , 464
ESP10, 388, 409, 433, 444, 447, 462, , 466
ESP10, 381, 402, 427, 440, 442, 464, , 468
ESP10, 372, 395, 418, 432, 434, 466, , 470
ESP10, 371, 396, 415, 430, 433, 468, , 472
ESP10, 380, 406, 426, 440, 442, 470, , 474
ESP10, 377, 404, 423, 437, 441, 472, , 476
ESP10, 382, 407, 425, 438, 443, 474, , 478
ESP10, 392, 408, 426, 438, 443, 476, , 480
ESP10, 404, 421, 439, 449, 454, 478, , 482
ESP10, 395, 415, 431, 440, 446, 480, , 484
ESP10, 405, 423, 438, 448, 453, 483, , 487
ESP10, 403, 419, 434, 443, 447, 485, , 489
ESP10, 401, 419, 433, 442, 448, 487, , 491
ESP10, 404, 422, 435, 445, 450, 489, , 493
ESP10, 407, 423, 436, 447, 451, 491, , 495
ESP10, 404, 421, 435, 445, 449, 493, , 497
ESP10, 414, 427, 442, 452, 455, 495, , 499
ESP10, 411, 425, 441, 449, 453, 497, , 501
ESP10, 412, 427, 444, 451, 454, 499, , 503
ESP10, 411, 426, 443, 449, 453, 501, , 505
ESP10, 411, 428, 445, 450, 454, 504, , 508
ESP10, 413, 428, 444, 449, 451, 506, , 510
ESP10, 414, 429, 445, 450, 452, 508, , 512
ESP10, 416, 432, 448, 452, 456, 510, , 514
ESP10, 418, 434, 449, 452, 456, 512, , 516
ESP10, 420, 437, 450, 453, 457, 514, , 518
ESP10, 422, 438, 450, 454, 457, 516, , 520
ESP10, 423, 441, 450, 455, 458, 518, , 522
ESP10, 422, 441, 452, 454, 457, 520, , 524
ESP10, 423, 443, 452, 455, 458, 522, , 526
ESP10, 424, 443, 453, 456, 458, 524, , 528
ESP10, 426, 443, 454, 457, 459, 527, , 531
ESP10, 425, 442, 453, 456, 458, 529, , 533
ESP10, 427, 445, 454, 456, 459, 531, , 535
ESP10, 428, 448, 454, 457, 459, 533, , 537
ESP10, 429, 449, 454, 457, 459, 535, , 539
ESP10, 432, 450, 455, 458, 459, 537, , 541
ESP10, 431, 446, 452, 456, 457, 539, , 543
ESP10, 432, 447, 452, 456, 458, 541, , 545
ESP10, 432, 447, 451, 455, 458, 543, , 547
ESP10, 431, 447, 452, 455, 457, 545, , 549
ESP10, 432, 448, 452, 455, 457, 547, , 551
ESP10, 432, 449, 453, 455, 457, 550, , 554
ESP10, 434, 447, 451, 454, 455, 552, , 556
ESP10, 434, 444, 450, 452, 454, 554, , 558
ESP10, 434, 445, 450, 453, 454, 556, , 560
ESP10, 436, 446, 450, 453, 453, 558, , 562
ESP10, 435, 445, 450, 452, 453, 560, , 564
ESP10, 435, 445, 449, 451, 452, 562, , 566
ESP10, 435, 444, 449, 450, 450, 564, , 568
ESP10, 441, 446, 451, 452, 452, 566, , 570
ESP10, 446, 451, 454, 455, 455, 568, , 572
ESP10, 444, 450, 453, 454, 454, 571, , 575
ESP10, 446, 452, 454, 455, 455, 573, , 577
ESP10, 446, 453, 455, 456, 456, 575, , 579
ESP10, 448, 453, 455, 456, 456, 577, , 581
ESP10, 450, 454, 456, 457, 457, 579, , 583
ESP10, 450, 453, 455, 455, 456, 581, , 585
ESP10, 447, 452, 453, 454, 454, 583, , 587
ESP10, 450, 453, 454, 455, 455, 585, , 589
ESP10, 452, 454, 455, 455, 456, 587, , 591
ESP10, 453, 455, 455, 455, 456, 589, , 593
ESP10, 453, 455, 455, 455, 455, 591, , 595
ESP10, 454, 455, 456, 456, 456, 594, , 598
ESP10, 453, 455, 455, 455, 455, 596, , 600
ESP10, 454, 455, 455, 455, 455, 598, , 602
ESP10, 453, 455, 455, 455, 455, 600, , 604
ESP10, 454, 455, 455, 455, 455, 602, , 606
ESP10, 454, 455, 455, 455, 455, 604, , 608
ESP10, 452, 454, 454, 454, 454, 606, , 610
ESP10, 452, 453, 453, 454, 454, 608, , 612
ESP10, 452, 453, 454, 454, 454, 610, , 614
ESP10, 455, 456, 457, 457, 457, 612, , 616
ESP10, 456, 457, 457, 457, 457, 614, , 618
ESP10, 455, 456, 457, 457, 457, 617, , 621
ESP10, 455, 456, 457, 457, 457, 619, , 623
ESP10, 455, 457, 457, 457, 457, 621, , 625
ESP10, 456, 457, 457, 457, 457, 623, , 627
ESP10, 456, 457, 457, 458, 458, 625, , 629
ESP10, 457, 457, 457, 457, 457, 627, , 631
ESP10, 456, 457, 457, 457, 457, 629, , 633
ESP10, 456, 457, 457, 457, 457, 631, , 635
ESP10, 456, 457, 457, 457, 457, 633, , 637
ESP10, 456, 457, 457, 457, 457, 635, , 639
ESP10, 455, 456, 456, 456, 456, 638, , 642
ESP10, 457, 457, 458, 458, 458, 640, , 644
ESP10, 457, 457, 457, 458, 458, 642, , 646
ESP10, 457, 457, 457, 458, 458, 644, , 648
ESP10, 457, 457, 457, 457, 457, 646, , 650
ESP10, 457, 457, 457, 457, 457, 648, , 652
ESP10, 457, 457, 457, 457, 457, 650, , 654
ESP10, 457, 457, 458, 458, 458, 652, , 656
ESP10, 456, 456, 457, 457, 457, 654, , 658
ESP10, 457, 457, 457, 457, 457, 656, , 660
ESP10, 457, 457, 457, 458, 458, 658, , 662
ESP10, 457, 457, 457, 458, 458, 661, , 665
ESP10, 457, 458, 458, 458, 458, 663, , 667
ESP10, 457, 457, 457, 457, 457, 665, , 669
ESP10, 458, 458, 458, 458, 458, 667, , 671
ESP10, 459, 459, 459, 459, 459, 669, , 673
ESP10, 459, 459, 459, 459, 459, 671, , 675
ESP10, 458, 459, 459, 459, 459, 673, , 677
ESP10, 459, 459, 459, 459, 459, 675, , 679
ESP10, 459, 459, 459, 459, 459, 677, , 681
ESP10, 458, 458, 458, 458, 458, 679, , 683
ESP10, 458, 458, 458, 458, 458, 681, , 685
ESP10, 458, 458, 458, 458, 458, 684, , 688
ESP10, 458, 458, 458, 458, 458, 686, , 690
ESP10, 459, 459, 459, 459, 459, 688, , 692
ESP10, 458, 458, 458, 458, 458, 690, , 694
ESP10, 458, 458, 458, 459, 459, 692, , 696
ESP10, 458, 458, 459, 459, 459, 694, , 698
ESP10, 458, 459, 459, 459, 459, 696, , 700
ESP10, 458, 458, 459, 459, 459, 698, , 702
ESP10, 460, 460, 460, 460, 460, 700, , 704
ESP10, 460, 460, 460, 460, 460, 702, , 706
ESP10, 460, 460, 460, 460, 460, 705, , 709
ESP10, 459, 460, 460, 460, 460, 707, , 711
ESP10, 460, 460, 460, 460, 460, 709, , 713
ESP10, 460, 460, 460, 460, 460, 711, , 715
ESP10, 460, 460, 460, 460, 460, 713, , 717
ESP10, 460, 460, 460, 460, 460, 715, , 719
ESP10, 461, 461, 461, 461, 461, 717, , 721
ESP10, 461, 461, 461, 461, 461, 719, , 723
ESP10, 461, 461, 461, 461, 461, 721, , 725
ESP10, 461, 461, 461, 461, 461, 723, , 727
ESP10, 460, 460, 460, 461, 461, 725, , 729
ESP10, 460, 460, 461, 461, 461, 728, , 732
ESP10, 462, 462, 462, 462, 462, 730, , 734
ESP10, 462, 462, 462, 462, 462, 732, , 736
ESP10, 462, 462, 462, 462, 462, 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/LLKW1W_SQIN.ESPF10.csv
LLKW1W_SQIN.ESPF0.csv|2026-08-15
LLKW1W_SQIN.ESPF10.csv|2026-08-15
LLKW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
SPOKANE - AT LONGLAKE
(
LLKW1
)
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
1796
2585
89
4096
2901
APR-JUL
1623
2374
87
3856
2714
APR-AUG
1717
2492
88
3998
2817
JAN-SEP
2845
4270
92
5944
4619
JAN-JUL
2677
4093
92
5714
4433
OCT-SEP
3282
4906
93
6713
5295
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/LLKW1W_SQIN.ESPF10.csv
LLKW1W_SQIN.ESPF0.csv|2026-08-15
LLKW1W_SQIN.ESPF10.csv|2026-08-15
LLKW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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