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Water Year
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OKANOGAN - NEAR TONASKET
(
TONW1
)
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
1047
1052
61
1068
1720
APR-JUL
977
977
62
977
1566
APR-AUG
1010
1010
61
1010
1656
JAN-SEP
1500
1505
76
1521
1986
JAN-JUL
1431
1431
78
1431
1832
OCT-SEP
1884
1888
84
1904
2238
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
1047
1052
61
1068
1720
APR-JUL
977
977
62
977
1566
APR-AUG
1010
1010
61
1011
1656
JAN-SEP
1500
1505
76
1521
1986
JAN-JUL
1431
1431
78
1431
1832
OCT-SEP
1884
1889
84
1905
2238
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
1037
1043
61
1060
1720
APR-JUL
977
977
62
977
1566
APR-AUG
1008
1008
61
1011
1656
JAN-SEP
1490
1496
75
1513
1986
JAN-JUL
1431
1431
78
1431
1832
OCT-SEP
1873
1879
84
1896
2238
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 244, 302, 357, 413, 460, 70, , 74
ESP10, 240, 298, 354, 410, 457, 72, , 76
ESP10, 246, 306, 360, 415, 462, 74, , 78
ESP10, 245, 309, 359, 414, 462, 76, , 80
ESP10, 242, 309, 357, 412, 460, 78, , 82
ESP10, 242, 314, 358, 413, 462, 81, , 85
ESP10, 239, 311, 356, 411, 460, 83, , 87
ESP10, 239, 312, 356, 411, 460, 85, , 89
ESP10, 239, 313, 357, 412, 460, 87, , 91
ESP10, 234, 309, 354, 408, 457, 89, , 93
ESP10, 233, 309, 355, 409, 458, 91, , 95
ESP10, 227, 306, 352, 404, 453, 93, , 97
ESP10, 225, 304, 350, 403, 452, 95, , 99
ESP10, 222, 303, 351, 402, 453, 97, , 101
ESP10, 213, 296, 346, 399, 447, 99, , 103
ESP10, 193, 279, 332, 385, 434, 102, , 106
ESP10, 181, 264, 322, 376, 420, 104, , 108
ESP10, 205, 281, 338, 395, 435, 106, , 110
ESP10, 211, 285, 342, 401, 438, 108, , 112
ESP10, 212, 284, 346, 402, 437, 110, , 114
ESP10, 199, 270, 337, 391, 427, 112, , 116
ESP10, 193, 268, 332, 391, 423, 114, , 118
ESP10, 177, 256, 321, 381, 412, 116, , 120
ESP10, 189, 273, 336, 390, 424, 118, , 122
ESP10, 190, 277, 339, 391, 430, 120, , 124
ESP10, 187, 285, 340, 391, 430, 122, , 126
ESP10, 183, 282, 336, 391, 430, 125, , 129
ESP10, 181, 281, 335, 391, 430, 127, , 131
ESP10, 170, 270, 327, 384, 422, 129, , 133
ESP10, 163, 263, 317, 375, 412, 131, , 135
ESP10, 152, 258, 306, 365, 402, 133, , 137
ESP10, 169, 276, 323, 376, 425, 135, , 139
ESP10, 165, 276, 318, 380, 425, 137, , 141
ESP10, 186, 290, 333, 396, 438, 139, , 143
ESP10, 192, 297, 340, 409, 443, 141, , 145
ESP10, 193, 296, 341, 407, 439, 143, , 147
ESP10, 197, 301, 346, 411, 444, 145, , 149
ESP10, 201, 303, 345, 408, 443, 148, , 152
ESP10, 202, 305, 347, 414, 451, 150, , 154
ESP10, 205, 301, 351, 412, 453, 152, , 156
ESP10, 207, 300, 352, 411, 452, 154, , 158
ESP10, 225, 315, 367, 422, 464, 156, , 160
ESP10, 229, 319, 372, 428, 465, 158, , 162
ESP10, 240, 324, 374, 428, 469, 160, , 164
ESP10, 236, 321, 372, 426, 465, 162, , 166
ESP10, 247, 325, 375, 428, 468, 164, , 168
ESP10, 233, 313, 365, 422, 459, 166, , 170
ESP10, 237, 311, 365, 423, 459, 169, , 173
ESP10, 237, 309, 366, 424, 459, 171, , 175
ESP10, 246, 316, 376, 431, 466, 173, , 177
ESP10, 247, 311, 373, 426, 462, 175, , 179
ESP10, 257, 311, 376, 427, 462, 177, , 181
ESP10, 259, 312, 372, 421, 458, 179, , 183
ESP10, 270, 325, 383, 434, 466, 181, , 185
ESP10, 277, 336, 390, 438, 472, 183, , 187
ESP10, 275, 336, 388, 437, 474, 185, , 189
ESP10, 268, 328, 381, 432, 469, 187, , 191
ESP10, 267, 323, 376, 427, 468, 189, , 193
ESP10, 268, 330, 380, 430, 470, 192, , 196
ESP10, 244, 313, 363, 418, 462, 194, , 198
ESP10, 234, 302, 354, 413, 454, 196, , 200
ESP10, 240, 300, 355, 414, 455, 198, , 202
ESP10, 222, 278, 343, 397, 438, 200, , 204
ESP10, 202, 256, 325, 381, 423, 202, , 206
ESP10, 209, 257, 326, 382, 423, 204, , 208
ESP10, 182, 235, 308, 358, 402, 206, , 210
ESP10, 204, 261, 331, 375, 418, 208, , 212
ESP10, 168, 225, 303, 349, 392, 210, , 214
ESP10, 141, 208, 282, 324, 371, 212, , 216
ESP10, 136, 203, 274, 316, 370, 215, , 219
ESP10, 145, 209, 283, 328, 376, 217, , 221
ESP10, 146, 209, 286, 327, 377, 219, , 223
ESP10, 147, 212, 287, 329, 379, 221, , 225
ESP10, 149, 211, 288, 333, 378, 223, , 227
ESP10, 147, 202, 282, 327, 373, 225, , 229
ESP10, 155, 203, 281, 329, 376, 227, , 231
ESP10, 144, 190, 269, 318, 361, 229, , 233
ESP10, 139, 187, 264, 315, 356, 231, , 235
ESP10, 187, 239, 307, 359, 390, 233, , 237
ESP10, 177, 232, 294, 351, 379, 236, , 240
ESP10, 182, 234, 299, 358, 382, 238, , 242
ESP10, 181, 233, 296, 357, 381, 240, , 244
ESP10, 189, 242, 302, 366, 387, 242, , 246
ESP10, 193, 246, 305, 369, 387, 244, , 248
ESP10, 189, 241, 305, 367, 383, 246, , 250
ESP10, 190, 238, 299, 368, 379, 248, , 252
ESP10, 197, 238, 298, 372, 385, 250, , 254
ESP10, 205, 242, 301, 376, 392, 252, , 256
ESP10, 203, 242, 298, 373, 391, 254, , 258
ESP10, 216, 254, 314, 385, 402, 256, , 260
ESP10, 220, 262, 317, 384, 400, 259, , 263
ESP10, 225, 266, 319, 383, 401, 261, , 265
ESP10, 226, 262, 315, 378, 401, 263, , 267
ESP10, 230, 265, 320, 380, 411, 265, , 269
ESP10, 225, 256, 314, 374, 404, 267, , 271
ESP10, 229, 258, 320, 379, 407, 269, , 273
ESP10, 231, 259, 321, 378, 405, 271, , 275
ESP10, 225, 255, 314, 371, 400, 273, , 277
ESP10, 219, 259, 309, 368, 397, 275, , 279
ESP10, 215, 258, 306, 365, 395, 277, , 281
ESP10, 215, 263, 306, 369, 396, 279, , 283
ESP10, 221, 265, 311, 371, 398, 282, , 286
ESP10, 220, 262, 309, 366, 394, 284, , 288
ESP10, 224, 258, 302, 356, 387, 286, , 290
ESP10, 222, 259, 299, 355, 384, 288, , 292
ESP10, 221, 256, 293, 352, 379, 290, , 294
ESP10, 218, 249, 292, 348, 373, 292, , 296
ESP10, 224, 256, 298, 351, 376, 294, , 298
ESP10, 229, 261, 298, 352, 379, 296, , 300
ESP10, 240, 267, 305, 356, 383, 298, , 302
ESP10, 242, 270, 306, 359, 383, 300, , 304
ESP10, 246, 274, 313, 369, 388, 303, , 307
ESP10, 247, 282, 311, 369, 388, 305, , 309
ESP10, 253, 290, 316, 374, 396, 307, , 311
ESP10, 250, 293, 314, 373, 397, 309, , 313
ESP10, 242, 285, 308, 366, 389, 311, , 315
ESP10, 247, 285, 310, 367, 393, 313, , 317
ESP10, 255, 289, 317, 371, 400, 315, , 319
ESP10, 249, 281, 313, 364, 396, 317, , 321
ESP10, 246, 279, 317, 361, 395, 319, , 323
ESP10, 247, 279, 318, 360, 399, 321, , 325
ESP10, 241, 277, 314, 357, 395, 323, , 327
ESP10, 237, 270, 307, 356, 391, 326, , 330
ESP10, 236, 268, 305, 357, 385, 328, , 332
ESP10, 229, 269, 302, 352, 384, 330, , 334
ESP10, 228, 268, 302, 350, 383, 332, , 336
ESP10, 225, 264, 304, 347, 379, 334, , 338
ESP10, 237, 271, 312, 355, 388, 336, , 340
ESP10, 240, 272, 313, 356, 389, 338, , 342
ESP10, 243, 272, 315, 356, 388, 340, , 344
ESP10, 244, 273, 318, 358, 387, 342, , 346
ESP10, 246, 274, 321, 361, 387, 344, , 348
ESP10, 239, 266, 314, 355, 379, 346, , 350
ESP10, 245, 267, 318, 356, 379, 349, , 353
ESP10, 255, 272, 322, 358, 381, 351, , 355
ESP10, 241, 254, 309, 343, 367, 353, , 357
ESP10, 255, 265, 320, 352, 376, 355, , 359
ESP10, 265, 280, 331, 358, 383, 357, , 361
ESP10, 248, 268, 320, 347, 372, 359, , 363
ESP10, 261, 279, 330, 358, 382, 361, , 365
ESP10, 256, 279, 324, 354, 375, 363, , 367
ESP10, 262, 286, 328, 359, 380, 365, , 369
ESP10, 261, 284, 327, 360, 379, 367, , 371
ESP10, 277, 301, 352, 373, 390, 370, , 374
ESP10, 278, 305, 353, 374, 391, 372, , 376
ESP10, 277, 312, 352, 373, 392, 374, , 378
ESP10, 279, 314, 353, 375, 396, 376, , 380
ESP10, 276, 311, 351, 372, 391, 378, , 382
ESP10, 276, 311, 349, 370, 386, 380, , 384
ESP10, 274, 305, 343, 366, 379, 382, , 386
ESP10, 273, 305, 341, 366, 379, 384, , 388
ESP10, 274, 306, 340, 366, 383, 386, , 390
ESP10, 266, 300, 332, 358, 374, 388, , 392
ESP10, 256, 294, 323, 354, 367, 390, , 394
ESP10, 244, 281, 312, 344, 358, 393, , 397
ESP10, 238, 278, 307, 338, 355, 395, , 399
ESP10, 225, 266, 295, 326, 344, 397, , 401
ESP10, 223, 263, 289, 322, 339, 399, , 403
ESP10, 217, 255, 280, 314, 329, 401, , 405
ESP10, 236, 268, 297, 328, 343, 403, , 407
ESP10, 244, 271, 306, 332, 348, 405, , 409
ESP10, 246, 273, 305, 332, 352, 407, , 411
ESP10, 255, 278, 310, 338, 360, 409, , 413
ESP10, 251, 279, 306, 335, 358, 411, , 415
ESP10, 246, 275, 301, 331, 354, 413, , 417
ESP10, 241, 272, 304, 335, 351, 416, , 420
ESP10, 236, 267, 300, 329, 346, 418, , 422
ESP10, 239, 271, 306, 332, 351, 420, , 424
ESP10, 256, 291, 319, 346, 362, 422, , 426
ESP10, 257, 293, 321, 346, 363, 424, , 428
ESP10, 268, 301, 325, 351, 368, 426, , 430
ESP10, 270, 305, 328, 356, 370, 428, , 432
ESP10, 271, 305, 329, 361, 371, 430, , 434
ESP10, 274, 297, 321, 353, 363, 432, , 436
ESP10, 272, 296, 317, 350, 360, 434, , 438
ESP10, 272, 299, 320, 351, 363, 437, , 441
ESP10, 273, 294, 315, 345, 357, 439, , 443
ESP10, 276, 297, 318, 348, 360, 441, , 445
ESP10, 278, 297, 321, 348, 360, 443, , 447
ESP10, 279, 299, 322, 348, 362, 445, , 449
ESP10, 282, 305, 327, 351, 365, 447, , 451
ESP10, 284, 303, 326, 349, 364, 449, , 453
ESP10, 282, 302, 323, 346, 362, 451, , 455
ESP10, 284, 304, 329, 348, 366, 453, , 457
ESP10, 283, 304, 329, 349, 366, 455, , 459
ESP10, 283, 303, 329, 350, 366, 457, , 461
ESP10, 286, 306, 332, 353, 367, 460, , 464
ESP10, 294, 316, 340, 360, 377, 462, , 466
ESP10, 299, 315, 337, 359, 375, 464, , 468
ESP10, 293, 311, 333, 354, 370, 466, , 470
ESP10, 294, 310, 333, 354, 370, 468, , 472
ESP10, 296, 311, 336, 354, 370, 470, , 474
ESP10, 297, 312, 337, 355, 371, 472, , 476
ESP10, 299, 320, 339, 359, 373, 474, , 478
ESP10, 313, 337, 355, 374, 385, 476, , 480
ESP10, 306, 332, 349, 368, 379, 478, , 482
ESP10, 307, 332, 351, 368, 379, 480, , 484
ESP10, 313, 337, 357, 373, 383, 483, , 487
ESP10, 312, 334, 353, 370, 379, 485, , 489
ESP10, 316, 339, 356, 373, 384, 487, , 491
ESP10, 320, 344, 357, 374, 385, 489, , 493
ESP10, 331, 358, 372, 386, 398, 491, , 495
ESP10, 342, 367, 384, 394, 407, 493, , 497
ESP10, 352, 373, 391, 400, 412, 495, , 499
ESP10, 354, 373, 392, 401, 413, 497, , 501
ESP10, 353, 375, 392, 403, 414, 499, , 503
ESP10, 352, 374, 390, 400, 411, 501, , 505
ESP10, 355, 375, 388, 399, 411, 504, , 508
ESP10, 354, 373, 386, 399, 409, 506, , 510
ESP10, 354, 371, 386, 397, 408, 508, , 512
ESP10, 354, 370, 385, 397, 408, 510, , 514
ESP10, 355, 371, 386, 397, 411, 512, , 516
ESP10, 358, 372, 390, 399, 413, 514, , 518
ESP10, 357, 372, 390, 397, 411, 516, , 520
ESP10, 360, 374, 396, 401, 413, 518, , 522
ESP10, 362, 377, 397, 403, 417, 520, , 524
ESP10, 361, 380, 398, 402, 418, 522, , 526
ESP10, 363, 380, 399, 405, 419, 524, , 528
ESP10, 372, 388, 403, 410, 423, 527, , 531
ESP10, 376, 391, 406, 412, 426, 529, , 533
ESP10, 375, 390, 405, 414, 424, 531, , 535
ESP10, 377, 394, 407, 416, 426, 533, , 537
ESP10, 376, 392, 404, 414, 424, 535, , 539
ESP10, 388, 410, 419, 429, 438, 537, , 541
ESP10, 381, 406, 415, 423, 433, 539, , 543
ESP10, 384, 406, 415, 422, 433, 541, , 545
ESP10, 387, 404, 415, 425, 431, 543, , 547
ESP10, 389, 406, 415, 424, 431, 545, , 549
ESP10, 392, 408, 416, 424, 432, 547, , 551
ESP10, 397, 411, 417, 427, 434, 550, , 554
ESP10, 396, 408, 417, 427, 432, 552, , 556
ESP10, 400, 409, 416, 428, 433, 554, , 558
ESP10, 397, 406, 414, 425, 430, 556, , 560
ESP10, 397, 406, 413, 425, 429, 558, , 562
ESP10, 397, 407, 414, 425, 429, 560, , 564
ESP10, 397, 409, 415, 425, 429, 562, , 566
ESP10, 393, 403, 412, 419, 422, 564, , 568
ESP10, 383, 394, 400, 407, 410, 566, , 570
ESP10, 386, 398, 404, 411, 413, 568, , 572
ESP10, 382, 396, 401, 409, 410, 571, , 575
ESP10, 369, 384, 393, 400, 402, 573, , 577
ESP10, 375, 394, 400, 405, 407, 575, , 579
ESP10, 380, 399, 404, 409, 410, 577, , 581
ESP10, 388, 403, 408, 413, 414, 579, , 583
ESP10, 391, 406, 411, 416, 417, 581, , 585
ESP10, 392, 406, 410, 415, 417, 583, , 587
ESP10, 392, 404, 409, 414, 415, 585, , 589
ESP10, 395, 406, 410, 414, 416, 587, , 591
ESP10, 394, 406, 411, 413, 415, 589, , 593
ESP10, 394, 406, 410, 413, 415, 591, , 595
ESP10, 398, 410, 414, 417, 419, 594, , 598
ESP10, 400, 410, 415, 417, 418, 596, , 600
ESP10, 403, 411, 415, 417, 418, 598, , 602
ESP10, 402, 411, 414, 416, 417, 600, , 604
ESP10, 402, 411, 413, 415, 416, 602, , 606
ESP10, 406, 413, 415, 416, 418, 604, , 608
ESP10, 415, 419, 421, 422, 423, 606, , 610
ESP10, 418, 421, 423, 424, 426, 608, , 612
ESP10, 419, 422, 423, 425, 426, 610, , 614
ESP10, 421, 424, 425, 427, 428, 612, , 616
ESP10, 421, 424, 425, 427, 428, 614, , 618
ESP10, 421, 424, 426, 427, 428, 617, , 621
ESP10, 422, 424, 426, 427, 428, 619, , 623
ESP10, 420, 422, 424, 425, 426, 621, , 625
ESP10, 420, 422, 424, 425, 426, 623, , 627
ESP10, 420, 422, 424, 425, 426, 625, , 629
ESP10, 420, 422, 424, 425, 426, 627, , 631
ESP10, 420, 422, 423, 425, 426, 629, , 633
ESP10, 419, 422, 423, 424, 425, 631, , 635
ESP10, 419, 422, 423, 424, 426, 633, , 637
ESP10, 419, 421, 422, 424, 425, 635, , 639
ESP10, 418, 421, 422, 423, 424, 638, , 642
ESP10, 419, 422, 423, 424, 425, 640, , 644
ESP10, 419, 422, 423, 424, 425, 642, , 646
ESP10, 418, 421, 422, 424, 425, 644, , 648
ESP10, 412, 415, 416, 417, 418, 646, , 650
ESP10, 413, 415, 416, 417, 418, 648, , 652
ESP10, 418, 420, 422, 423, 424, 650, , 654
ESP10, 418, 420, 422, 423, 424, 652, , 656
ESP10, 418, 420, 422, 423, 424, 654, , 658
ESP10, 418, 420, 422, 423, 424, 656, , 660
ESP10, 417, 420, 421, 422, 423, 658, , 662
ESP10, 416, 419, 420, 421, 422, 661, , 665
ESP10, 416, 419, 420, 421, 422, 663, , 667
ESP10, 414, 417, 419, 420, 420, 665, , 669
ESP10, 414, 417, 419, 420, 420, 667, , 671
ESP10, 415, 418, 419, 420, 420, 669, , 673
ESP10, 415, 418, 419, 420, 420, 671, , 675
ESP10, 415, 418, 419, 420, 420, 673, , 677
ESP10, 415, 418, 419, 420, 420, 675, , 679
ESP10, 415, 418, 419, 420, 420, 677, , 681
ESP10, 415, 418, 419, 420, 420, 679, , 683
ESP10, 415, 418, 419, 420, 420, 681, , 685
ESP10, 415, 418, 419, 420, 420, 684, , 688
ESP10, 415, 418, 419, 420, 420, 686, , 690
ESP10, 414, 417, 418, 419, 420, 688, , 692
ESP10, 415, 417, 418, 419, 420, 690, , 694
ESP10, 414, 416, 417, 418, 419, 692, , 696
ESP10, 414, 416, 417, 418, 419, 694, , 698
ESP10, 414, 417, 418, 419, 419, 696, , 700
ESP10, 414, 417, 418, 419, 419, 698, , 702
ESP10, 414, 416, 418, 418, 419, 700, , 704
ESP10, 414, 417, 418, 418, 419, 702, , 706
ESP10, 415, 417, 418, 419, 419, 705, , 709
ESP10, 415, 417, 418, 418, 419, 707, , 711
ESP10, 415, 417, 418, 419, 419, 709, , 713
ESP10, 415, 417, 418, 418, 419, 711, , 715
ESP10, 416, 417, 418, 418, 419, 713, , 717
ESP10, 415, 417, 418, 418, 419, 715, , 719
ESP10, 415, 416, 418, 418, 418, 717, , 721
ESP10, 415, 417, 418, 418, 418, 719, , 723
ESP10, 414, 417, 418, 418, 418, 721, , 725
ESP10, 414, 416, 417, 418, 418, 723, , 727
ESP10, 411, 414, 415, 415, 416, 725, , 729
ESP10, 412, 414, 415, 416, 416, 728, , 732
ESP10, 412, 415, 415, 416, 416, 730, , 734
ESP10, 413, 415, 415, 416, 416, 732, , 736
ESP10, 413, 415, 415, 416, 416, 734, , 738
Max Scale
Scale To Data
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Show Min/Max Ensemble Volume
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/TONW1W_SQIN.ESPF10.csv
TONW1W_SQIN.ESPF0.csv|2026-08-15
TONW1W_SQIN.ESPF10.csv|2026-08-15
TONW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
OKANOGAN - NEAR TONASKET
(
TONW1
)
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
695
1478
86
2178
1720
APR-JUL
640
1342
86
1893
1566
APR-AUG
661
1426
86
2090
1656
JAN-SEP
904
1749
88
2547
1986
JAN-JUL
847
1631
89
2254
1832
OCT-SEP
1068
2008
90
2873
2238
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/TONW1W_SQIN.ESPF10.csv
TONW1W_SQIN.ESPF0.csv|2026-08-15
TONW1W_SQIN.ESPF10.csv|2026-08-15
TONW1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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