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Water Year
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BLACKFOOT - NEAR BONNER
(
BONM8
)
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
889
889
100
890
891
APR-JUL
817
817
101
817
811
APR-AUG
860
860
101
860
855
JAN-SEP
1130
1131
111
1132
1017
JAN-JUL
1058
1058
113
1058
937
OCT-SEP
1261
1262
112
1263
1126
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
889
889
100
891
891
APR-JUL
817
817
101
817
811
APR-AUG
860
860
101
861
855
JAN-SEP
1130
1131
111
1133
1017
JAN-JUL
1058
1058
113
1058
937
OCT-SEP
1261
1262
112
1263
1126
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
889
890
100
892
891
APR-JUL
817
817
101
817
811
APR-AUG
860
860
101
861
855
JAN-SEP
1131
1132
111
1134
1017
JAN-JUL
1058
1058
113
1058
937
OCT-SEP
1261
1262
112
1264
1126
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 291, 366, 395, 433, 455, 70, , 74
ESP10, 289, 364, 395, 432, 453, 72, , 76
ESP10, 285, 360, 393, 430, 450, 74, , 78
ESP10, 285, 360, 393, 430, 450, 76, , 80
ESP10, 284, 359, 394, 429, 449, 78, , 82
ESP10, 281, 358, 393, 428, 448, 81, , 85
ESP10, 262, 344, 381, 418, 436, 83, , 87
ESP10, 280, 360, 391, 428, 447, 85, , 89
ESP10, 277, 356, 387, 425, 444, 87, , 91
ESP10, 282, 358, 390, 427, 447, 89, , 93
ESP10, 274, 353, 388, 424, 441, 91, , 95
ESP10, 290, 361, 394, 429, 447, 93, , 97
ESP10, 282, 356, 389, 424, 450, 95, , 99
ESP10, 282, 356, 389, 425, 449, 97, , 101
ESP10, 283, 355, 390, 425, 449, 99, , 103
ESP10, 276, 350, 385, 422, 443, 102, , 106
ESP10, 272, 347, 383, 420, 442, 104, , 108
ESP10, 268, 343, 382, 420, 441, 106, , 110
ESP10, 271, 345, 388, 422, 443, 108, , 112
ESP10, 272, 345, 390, 428, 445, 110, , 114
ESP10, 267, 342, 386, 426, 442, 112, , 116
ESP10, 267, 341, 386, 427, 441, 114, , 118
ESP10, 260, 336, 381, 425, 439, 116, , 120
ESP10, 269, 347, 387, 430, 447, 118, , 122
ESP10, 265, 350, 384, 430, 446, 120, , 124
ESP10, 261, 352, 383, 428, 446, 122, , 126
ESP10, 264, 356, 394, 431, 448, 125, , 129
ESP10, 267, 360, 400, 434, 452, 127, , 131
ESP10, 266, 362, 400, 434, 455, 129, , 133
ESP10, 255, 353, 392, 426, 447, 131, , 135
ESP10, 259, 356, 396, 430, 450, 133, , 137
ESP10, 266, 358, 397, 431, 451, 135, , 139
ESP10, 262, 356, 397, 428, 448, 137, , 141
ESP10, 266, 359, 400, 430, 450, 139, , 143
ESP10, 265, 357, 398, 428, 448, 141, , 145
ESP10, 269, 360, 400, 429, 450, 143, , 147
ESP10, 267, 358, 401, 428, 448, 145, , 149
ESP10, 266, 357, 399, 429, 447, 148, , 152
ESP10, 269, 361, 401, 431, 449, 150, , 154
ESP10, 268, 361, 400, 430, 447, 152, , 156
ESP10, 272, 364, 401, 434, 450, 154, , 158
ESP10, 274, 368, 408, 435, 452, 156, , 160
ESP10, 276, 371, 408, 435, 452, 158, , 162
ESP10, 275, 369, 406, 435, 450, 160, , 164
ESP10, 282, 368, 407, 436, 451, 162, , 166
ESP10, 282, 365, 404, 436, 448, 164, , 168
ESP10, 285, 367, 405, 438, 453, 166, , 170
ESP10, 296, 374, 410, 445, 461, 169, , 173
ESP10, 309, 377, 412, 449, 467, 171, , 175
ESP10, 306, 376, 411, 448, 465, 173, , 177
ESP10, 302, 373, 409, 446, 466, 175, , 179
ESP10, 305, 374, 413, 447, 466, 177, , 181
ESP10, 302, 376, 408, 443, 461, 179, , 183
ESP10, 305, 378, 410, 446, 462, 181, , 185
ESP10, 295, 369, 401, 437, 454, 183, , 187
ESP10, 304, 375, 405, 441, 459, 185, , 189
ESP10, 303, 377, 402, 438, 459, 187, , 191
ESP10, 306, 379, 405, 441, 461, 189, , 193
ESP10, 306, 380, 407, 442, 464, 192, , 196
ESP10, 288, 365, 399, 430, 453, 194, , 198
ESP10, 268, 349, 387, 418, 443, 196, , 200
ESP10, 274, 355, 393, 422, 446, 198, , 202
ESP10, 261, 345, 387, 416, 438, 200, , 204
ESP10, 234, 323, 367, 398, 426, 202, , 206
ESP10, 231, 319, 365, 398, 425, 204, , 208
ESP10, 229, 312, 358, 394, 421, 206, , 210
ESP10, 237, 319, 369, 403, 425, 208, , 212
ESP10, 187, 271, 334, 374, 401, 210, , 214
ESP10, 150, 238, 302, 350, 381, 212, , 216
ESP10, 149, 231, 296, 339, 376, 215, , 219
ESP10, 157, 245, 307, 346, 379, 217, , 221
ESP10, 154, 241, 303, 343, 378, 219, , 223
ESP10, 157, 242, 306, 344, 386, 221, , 225
ESP10, 172, 255, 318, 354, 393, 223, , 227
ESP10, 174, 254, 315, 351, 391, 225, , 229
ESP10, 200, 276, 336, 372, 409, 227, , 231
ESP10, 201, 272, 330, 369, 406, 229, , 233
ESP10, 213, 280, 338, 374, 410, 231, , 235
ESP10, 228, 295, 346, 380, 415, 233, , 237
ESP10, 224, 286, 349, 375, 410, 236, , 240
ESP10, 218, 277, 342, 369, 405, 238, , 242
ESP10, 223, 281, 348, 372, 408, 240, , 244
ESP10, 252, 311, 376, 395, 425, 242, , 246
ESP10, 252, 308, 374, 394, 423, 244, , 248
ESP10, 250, 300, 368, 389, 418, 246, , 250
ESP10, 247, 298, 367, 390, 416, 248, , 252
ESP10, 251, 299, 370, 393, 416, 250, , 254
ESP10, 255, 306, 373, 395, 417, 252, , 256
ESP10, 259, 311, 375, 399, 420, 254, , 258
ESP10, 256, 310, 375, 397, 419, 256, , 260
ESP10, 299, 355, 401, 423, 444, 259, , 263
ESP10, 299, 355, 401, 423, 445, 261, , 265
ESP10, 305, 350, 399, 420, 443, 263, , 267
ESP10, 306, 349, 400, 419, 441, 265, , 269
ESP10, 302, 346, 398, 418, 438, 267, , 271
ESP10, 299, 344, 397, 416, 436, 269, , 273
ESP10, 295, 337, 393, 410, 432, 271, , 275
ESP10, 303, 335, 392, 409, 432, 273, , 277
ESP10, 298, 329, 389, 406, 431, 275, , 279
ESP10, 301, 344, 392, 409, 433, 277, , 281
ESP10, 304, 347, 394, 413, 435, 279, , 283
ESP10, 304, 347, 394, 415, 434, 282, , 286
ESP10, 307, 349, 395, 416, 435, 284, , 288
ESP10, 315, 349, 393, 416, 435, 286, , 290
ESP10, 323, 351, 395, 418, 437, 288, , 292
ESP10, 321, 355, 395, 417, 436, 290, , 294
ESP10, 321, 357, 395, 416, 435, 292, , 296
ESP10, 321, 355, 394, 415, 435, 294, , 298
ESP10, 315, 351, 390, 412, 431, 296, , 300
ESP10, 331, 367, 402, 423, 441, 298, , 302
ESP10, 334, 365, 400, 424, 439, 300, , 304
ESP10, 338, 369, 402, 425, 440, 303, , 307
ESP10, 340, 375, 403, 425, 441, 305, , 309
ESP10, 342, 378, 405, 426, 443, 307, , 311
ESP10, 334, 371, 399, 423, 437, 309, , 313
ESP10, 341, 374, 401, 426, 444, 311, , 315
ESP10, 348, 375, 403, 427, 445, 313, , 317
ESP10, 348, 372, 402, 425, 442, 315, , 319
ESP10, 349, 374, 402, 426, 442, 317, , 321
ESP10, 356, 378, 404, 428, 444, 319, , 323
ESP10, 362, 378, 405, 428, 444, 321, , 325
ESP10, 360, 383, 406, 427, 443, 323, , 327
ESP10, 364, 385, 410, 429, 446, 326, , 330
ESP10, 366, 383, 408, 427, 444, 328, , 332
ESP10, 372, 388, 415, 429, 447, 330, , 334
ESP10, 375, 388, 414, 430, 447, 332, , 336
ESP10, 370, 385, 413, 427, 444, 334, , 338
ESP10, 364, 381, 410, 423, 440, 336, , 340
ESP10, 364, 377, 405, 419, 434, 338, , 342
ESP10, 364, 375, 402, 421, 431, 340, , 344
ESP10, 362, 375, 402, 422, 431, 342, , 346
ESP10, 365, 378, 403, 423, 434, 344, , 348
ESP10, 369, 381, 404, 424, 434, 346, , 350
ESP10, 369, 381, 403, 422, 433, 349, , 353
ESP10, 368, 380, 403, 421, 436, 351, , 355
ESP10, 363, 377, 400, 420, 434, 353, , 357
ESP10, 356, 373, 396, 416, 431, 355, , 359
ESP10, 355, 372, 395, 415, 432, 357, , 361
ESP10, 362, 378, 399, 421, 439, 359, , 363
ESP10, 368, 383, 403, 424, 444, 361, , 365
ESP10, 366, 377, 400, 420, 444, 363, , 367
ESP10, 370, 382, 403, 423, 447, 365, , 369
ESP10, 369, 381, 402, 420, 446, 367, , 371
ESP10, 368, 379, 401, 418, 443, 370, , 374
ESP10, 368, 378, 400, 417, 443, 372, , 376
ESP10, 364, 377, 398, 415, 439, 374, , 378
ESP10, 366, 381, 401, 417, 440, 376, , 380
ESP10, 362, 380, 402, 415, 437, 378, , 382
ESP10, 358, 379, 399, 412, 434, 380, , 384
ESP10, 345, 369, 386, 401, 423, 382, , 386
ESP10, 351, 374, 391, 405, 426, 384, , 388
ESP10, 350, 375, 390, 404, 425, 386, , 390
ESP10, 346, 371, 387, 400, 422, 388, , 392
ESP10, 338, 366, 382, 395, 418, 390, , 394
ESP10, 331, 362, 376, 390, 412, 393, , 397
ESP10, 323, 360, 371, 384, 406, 395, , 399
ESP10, 302, 341, 355, 370, 391, 397, , 401
ESP10, 316, 353, 364, 379, 398, 399, , 403
ESP10, 272, 313, 325, 341, 368, 401, , 405
ESP10, 307, 345, 357, 371, 393, 403, , 407
ESP10, 307, 345, 360, 373, 395, 405, , 409
ESP10, 285, 325, 341, 358, 382, 407, , 411
ESP10, 299, 339, 355, 374, 391, 409, , 413
ESP10, 298, 336, 354, 374, 389, 411, , 415
ESP10, 296, 334, 353, 375, 389, 413, , 417
ESP10, 291, 328, 346, 372, 384, 416, , 420
ESP10, 286, 322, 342, 368, 380, 418, , 422
ESP10, 289, 324, 344, 370, 383, 420, , 424
ESP10, 296, 331, 351, 376, 390, 422, , 426
ESP10, 304, 334, 353, 378, 395, 424, , 428
ESP10, 309, 332, 353, 380, 395, 426, , 430
ESP10, 304, 328, 348, 376, 391, 428, , 432
ESP10, 304, 328, 347, 375, 392, 430, , 434
ESP10, 284, 310, 329, 358, 378, 432, , 436
ESP10, 286, 311, 333, 366, 381, 434, , 438
ESP10, 295, 316, 340, 370, 383, 437, , 441
ESP10, 291, 312, 339, 368, 379, 439, , 443
ESP10, 293, 314, 339, 368, 380, 441, , 445
ESP10, 284, 303, 331, 359, 371, 443, , 447
ESP10, 279, 300, 328, 355, 367, 445, , 449
ESP10, 283, 304, 335, 360, 374, 447, , 451
ESP10, 288, 316, 340, 366, 379, 449, , 453
ESP10, 284, 310, 338, 361, 374, 451, , 455
ESP10, 293, 313, 343, 367, 378, 453, , 457
ESP10, 298, 312, 342, 367, 378, 455, , 459
ESP10, 289, 307, 335, 363, 371, 457, , 461
ESP10, 291, 310, 335, 368, 372, 460, , 464
ESP10, 286, 306, 334, 361, 367, 462, , 466
ESP10, 285, 304, 331, 358, 366, 464, , 468
ESP10, 280, 301, 325, 351, 359, 466, , 470
ESP10, 274, 302, 321, 347, 354, 468, , 472
ESP10, 274, 302, 323, 346, 355, 470, , 474
ESP10, 274, 304, 325, 347, 355, 472, , 476
ESP10, 289, 318, 338, 360, 367, 474, , 478
ESP10, 263, 293, 314, 339, 344, 476, , 480
ESP10, 254, 284, 302, 327, 333, 478, , 482
ESP10, 246, 277, 299, 322, 326, 480, , 484
ESP10, 257, 288, 315, 335, 340, 483, , 487
ESP10, 262, 293, 319, 337, 343, 485, , 489
ESP10, 266, 294, 318, 338, 344, 487, , 491
ESP10, 262, 290, 312, 333, 339, 489, , 493
ESP10, 268, 297, 319, 338, 345, 491, , 495
ESP10, 274, 304, 326, 344, 351, 493, , 497
ESP10, 281, 306, 332, 348, 353, 495, , 499
ESP10, 275, 301, 327, 342, 349, 497, , 501
ESP10, 277, 302, 331, 345, 354, 499, , 503
ESP10, 282, 303, 331, 343, 353, 501, , 505
ESP10, 286, 305, 329, 340, 348, 504, , 508
ESP10, 287, 304, 328, 338, 347, 506, , 510
ESP10, 289, 307, 328, 340, 346, 508, , 512
ESP10, 290, 309, 330, 342, 347, 510, , 514
ESP10, 295, 316, 336, 348, 354, 512, , 516
ESP10, 295, 316, 337, 349, 356, 514, , 518
ESP10, 295, 320, 339, 349, 356, 516, , 520
ESP10, 298, 323, 340, 351, 358, 518, , 522
ESP10, 292, 321, 340, 351, 360, 520, , 524
ESP10, 297, 325, 342, 351, 361, 522, , 526
ESP10, 296, 324, 341, 349, 359, 524, , 528
ESP10, 293, 325, 339, 348, 357, 527, , 531
ESP10, 293, 324, 340, 348, 357, 529, , 533
ESP10, 297, 324, 342, 349, 357, 531, , 535
ESP10, 298, 321, 340, 346, 353, 533, , 537
ESP10, 305, 327, 343, 350, 356, 535, , 539
ESP10, 312, 333, 345, 353, 359, 537, , 541
ESP10, 309, 331, 341, 349, 357, 539, , 543
ESP10, 303, 331, 337, 343, 349, 541, , 545
ESP10, 317, 342, 348, 355, 363, 543, , 547
ESP10, 318, 342, 349, 356, 364, 545, , 549
ESP10, 337, 349, 360, 366, 372, 547, , 551
ESP10, 337, 349, 361, 367, 372, 550, , 554
ESP10, 336, 348, 360, 366, 371, 552, , 556
ESP10, 332, 344, 358, 365, 368, 554, , 558
ESP10, 335, 348, 359, 366, 369, 556, , 560
ESP10, 325, 342, 352, 359, 363, 558, , 562
ESP10, 328, 344, 355, 362, 365, 560, , 564
ESP10, 343, 349, 359, 365, 369, 562, , 566
ESP10, 341, 347, 357, 364, 367, 564, , 568
ESP10, 336, 345, 353, 358, 362, 566, , 570
ESP10, 308, 317, 327, 332, 334, 568, , 572
ESP10, 299, 308, 315, 322, 324, 571, , 575
ESP10, 311, 323, 329, 335, 338, 573, , 577
ESP10, 310, 320, 327, 332, 334, 575, , 579
ESP10, 313, 324, 330, 336, 337, 577, , 581
ESP10, 313, 324, 330, 335, 337, 579, , 583
ESP10, 315, 324, 331, 333, 335, 581, , 585
ESP10, 310, 320, 327, 330, 332, 583, , 587
ESP10, 311, 323, 330, 334, 336, 585, , 589
ESP10, 314, 326, 332, 335, 337, 587, , 591
ESP10, 332, 341, 348, 351, 352, 589, , 593
ESP10, 333, 340, 346, 349, 350, 591, , 595
ESP10, 342, 350, 354, 355, 355, 594, , 598
ESP10, 346, 351, 354, 355, 355, 596, , 600
ESP10, 348, 352, 353, 354, 354, 598, , 602
ESP10, 348, 351, 353, 354, 355, 600, , 604
ESP10, 352, 355, 357, 358, 358, 602, , 606
ESP10, 354, 357, 358, 358, 359, 604, , 608
ESP10, 355, 357, 358, 358, 359, 606, , 610
ESP10, 356, 357, 357, 358, 359, 608, , 612
ESP10, 355, 357, 357, 358, 358, 610, , 614
ESP10, 355, 356, 356, 357, 357, 612, , 616
ESP10, 355, 356, 356, 357, 357, 614, , 618
ESP10, 355, 356, 356, 357, 357, 617, , 621
ESP10, 354, 356, 356, 357, 357, 619, , 623
ESP10, 353, 355, 356, 356, 357, 621, , 625
ESP10, 353, 355, 356, 356, 356, 623, , 627
ESP10, 354, 355, 356, 356, 356, 625, , 629
ESP10, 350, 353, 353, 353, 354, 627, , 631
ESP10, 347, 349, 350, 350, 351, 629, , 633
ESP10, 341, 344, 344, 344, 345, 631, , 635
ESP10, 342, 344, 344, 344, 344, 633, , 637
ESP10, 344, 346, 346, 346, 346, 635, , 639
ESP10, 339, 340, 340, 341, 341, 638, , 642
ESP10, 341, 341, 342, 342, 342, 640, , 644
ESP10, 341, 341, 342, 342, 342, 642, , 646
ESP10, 341, 342, 342, 342, 342, 644, , 648
ESP10, 343, 343, 344, 344, 344, 646, , 650
ESP10, 343, 343, 344, 344, 344, 648, , 652
ESP10, 343, 344, 344, 344, 344, 650, , 654
ESP10, 343, 344, 344, 345, 345, 652, , 656
ESP10, 345, 345, 346, 346, 346, 654, , 658
ESP10, 345, 345, 346, 346, 346, 656, , 660
ESP10, 345, 345, 346, 346, 346, 658, , 662
ESP10, 349, 350, 350, 350, 350, 661, , 665
ESP10, 349, 350, 350, 350, 350, 663, , 667
ESP10, 349, 350, 350, 350, 350, 665, , 669
ESP10, 349, 350, 350, 350, 350, 667, , 671
ESP10, 349, 350, 350, 350, 351, 669, , 673
ESP10, 349, 350, 350, 350, 351, 671, , 675
ESP10, 349, 350, 350, 350, 350, 673, , 677
ESP10, 349, 349, 349, 350, 350, 675, , 679
ESP10, 349, 349, 349, 349, 350, 677, , 681
ESP10, 349, 349, 349, 349, 350, 679, , 683
ESP10, 349, 349, 349, 349, 350, 681, , 685
ESP10, 349, 349, 349, 349, 350, 684, , 688
ESP10, 349, 349, 349, 349, 350, 686, , 690
ESP10, 349, 349, 349, 349, 350, 688, , 692
ESP10, 349, 349, 349, 349, 350, 690, , 694
ESP10, 349, 349, 349, 349, 350, 692, , 696
ESP10, 348, 349, 349, 349, 350, 694, , 698
ESP10, 349, 349, 349, 349, 350, 696, , 700
ESP10, 348, 348, 349, 349, 349, 698, , 702
ESP10, 348, 348, 348, 349, 349, 700, , 704
ESP10, 348, 348, 348, 348, 349, 702, , 706
ESP10, 348, 348, 348, 349, 349, 705, , 709
ESP10, 348, 348, 348, 348, 349, 707, , 711
ESP10, 348, 348, 348, 348, 349, 709, , 713
ESP10, 348, 348, 348, 349, 349, 711, , 715
ESP10, 348, 348, 348, 349, 349, 713, , 717
ESP10, 348, 348, 348, 349, 349, 715, , 719
ESP10, 348, 348, 348, 349, 349, 717, , 721
ESP10, 348, 348, 348, 349, 349, 719, , 723
ESP10, 348, 348, 348, 348, 349, 721, , 725
ESP10, 348, 348, 348, 348, 348, 723, , 727
ESP10, 348, 348, 348, 348, 348, 725, , 729
ESP10, 348, 348, 348, 348, 348, 728, , 732
ESP10, 348, 348, 348, 348, 348, 730, , 734
ESP10, 347, 347, 348, 348, 348, 732, , 736
ESP10, 347, 347, 347, 347, 347, 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/BONM8W_SQIN.ESPF10.csv
BONM8W_SQIN.ESPF0.csv|2026-08-15
BONM8W_SQIN.ESPF10.csv|2026-08-15
BONM8W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
BLACKFOOT - NEAR BONNER
(
BONM8
)
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
513
794
89
1502
891
APR-JUL
460
710
87
1361
811
APR-AUG
489
757
89
1446
855
JAN-SEP
584
866
85
1626
1017
JAN-JUL
536
784
84
1475
937
OCT-SEP
662
944
84
1708
1126
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/BONM8W_SQIN.ESPF10.csv
BONM8W_SQIN.ESPF0.csv|2026-08-15
BONM8W_SQIN.ESPF10.csv|2026-08-15
BONM8W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
