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Archive:
Water Year
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BITTERROOT - NEAR DARBY
(
DARM8
)
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
472
473
91
477
519
APR-JUL
426
426
92
426
465
APR-AUG
453
453
91
454
497
JAN-SEP
580
581
101
584
575
JAN-JUL
534
534
102
534
521
OCT-SEP
643
644
103
647
624
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
472
474
91
476
519
APR-JUL
426
426
92
426
465
APR-AUG
452
453
91
454
497
JAN-SEP
580
582
101
584
575
JAN-JUL
534
534
102
534
521
OCT-SEP
643
645
103
647
624
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
472
474
91
478
519
APR-JUL
426
426
92
426
465
APR-AUG
452
453
91
455
497
JAN-SEP
580
582
101
585
575
JAN-JUL
534
534
102
534
521
OCT-SEP
643
645
103
649
624
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 212, 313, 374, 424, 456, 70, , 74
ESP10, 211, 312, 374, 423, 455, 72, , 76
ESP10, 209, 310, 372, 422, 458, 74, , 78
ESP10, 208, 309, 371, 421, 457, 76, , 80
ESP10, 205, 306, 369, 419, 455, 78, , 82
ESP10, 204, 306, 370, 419, 455, 81, , 85
ESP10, 191, 295, 361, 411, 449, 83, , 87
ESP10, 201, 313, 372, 418, 457, 85, , 89
ESP10, 198, 312, 369, 416, 456, 87, , 91
ESP10, 196, 310, 367, 415, 455, 89, , 93
ESP10, 185, 300, 357, 409, 448, 91, , 95
ESP10, 198, 314, 368, 419, 457, 93, , 97
ESP10, 181, 299, 354, 405, 442, 95, , 99
ESP10, 191, 303, 359, 409, 446, 97, , 101
ESP10, 187, 299, 356, 405, 443, 99, , 103
ESP10, 179, 291, 349, 399, 439, 102, , 106
ESP10, 176, 290, 347, 398, 437, 104, , 108
ESP10, 172, 289, 346, 400, 438, 106, , 110
ESP10, 155, 270, 332, 391, 430, 108, , 112
ESP10, 159, 274, 337, 393, 431, 110, , 114
ESP10, 153, 270, 330, 388, 427, 112, , 116
ESP10, 150, 270, 335, 389, 427, 114, , 118
ESP10, 147, 270, 334, 386, 425, 116, , 120
ESP10, 152, 277, 339, 396, 429, 118, , 122
ESP10, 171, 298, 358, 413, 444, 120, , 124
ESP10, 208, 331, 390, 444, 472, 122, , 126
ESP10, 220, 340, 399, 451, 479, 125, , 129
ESP10, 230, 345, 406, 455, 481, 127, , 131
ESP10, 226, 343, 406, 453, 479, 129, , 133
ESP10, 206, 326, 391, 442, 469, 131, , 135
ESP10, 212, 332, 397, 446, 472, 133, , 137
ESP10, 225, 334, 399, 447, 473, 135, , 139
ESP10, 233, 343, 405, 452, 475, 137, , 141
ESP10, 241, 350, 409, 454, 477, 139, , 143
ESP10, 243, 350, 407, 453, 476, 141, , 145
ESP10, 250, 351, 408, 454, 478, 143, , 147
ESP10, 250, 353, 409, 453, 477, 145, , 149
ESP10, 244, 352, 406, 449, 472, 148, , 152
ESP10, 249, 365, 409, 453, 476, 150, , 154
ESP10, 249, 367, 410, 454, 478, 152, , 156
ESP10, 253, 370, 415, 457, 483, 154, , 158
ESP10, 252, 370, 417, 463, 485, 156, , 160
ESP10, 253, 371, 418, 464, 487, 158, , 162
ESP10, 249, 368, 416, 462, 485, 160, , 164
ESP10, 243, 354, 412, 457, 477, 162, , 166
ESP10, 254, 356, 417, 458, 482, 164, , 168
ESP10, 260, 358, 419, 459, 483, 166, , 170
ESP10, 269, 364, 424, 461, 487, 169, , 173
ESP10, 271, 366, 424, 461, 487, 171, , 175
ESP10, 265, 359, 415, 454, 479, 173, , 177
ESP10, 265, 355, 413, 449, 477, 175, , 179
ESP10, 266, 350, 408, 443, 474, 177, , 181
ESP10, 275, 354, 410, 448, 476, 179, , 183
ESP10, 281, 359, 416, 451, 479, 181, , 185
ESP10, 271, 356, 410, 447, 478, 183, , 187
ESP10, 274, 358, 413, 450, 481, 185, , 189
ESP10, 262, 348, 409, 445, 475, 187, , 191
ESP10, 267, 350, 411, 450, 479, 189, , 193
ESP10, 278, 362, 418, 457, 483, 192, , 196
ESP10, 257, 347, 403, 446, 472, 194, , 198
ESP10, 238, 328, 386, 434, 461, 196, , 200
ESP10, 249, 337, 388, 438, 464, 198, , 202
ESP10, 230, 316, 370, 422, 451, 200, , 204
ESP10, 213, 298, 351, 409, 434, 202, , 206
ESP10, 213, 303, 351, 409, 434, 204, , 208
ESP10, 193, 284, 332, 396, 418, 206, , 210
ESP10, 190, 281, 329, 395, 415, 208, , 212
ESP10, 180, 276, 321, 387, 408, 210, , 214
ESP10, 187, 280, 325, 390, 416, 212, , 216
ESP10, 181, 276, 319, 385, 412, 215, , 219
ESP10, 199, 290, 337, 397, 430, 217, , 221
ESP10, 193, 284, 329, 390, 424, 219, , 223
ESP10, 197, 290, 336, 394, 427, 221, , 225
ESP10, 207, 296, 344, 399, 435, 223, , 227
ESP10, 214, 293, 342, 401, 434, 225, , 229
ESP10, 217, 292, 343, 402, 433, 227, , 231
ESP10, 213, 287, 341, 400, 430, 229, , 233
ESP10, 237, 299, 351, 410, 437, 231, , 235
ESP10, 240, 299, 351, 409, 433, 233, , 237
ESP10, 238, 298, 350, 408, 432, 236, , 240
ESP10, 237, 299, 346, 404, 430, 238, , 242
ESP10, 237, 301, 344, 403, 428, 240, , 244
ESP10, 249, 312, 352, 410, 436, 242, , 246
ESP10, 253, 316, 354, 412, 439, 244, , 248
ESP10, 250, 314, 353, 410, 435, 246, , 250
ESP10, 251, 314, 353, 412, 435, 248, , 252
ESP10, 253, 316, 354, 415, 437, 250, , 254
ESP10, 259, 321, 363, 425, 445, 252, , 256
ESP10, 259, 324, 370, 428, 447, 254, , 258
ESP10, 258, 323, 370, 429, 446, 256, , 260
ESP10, 261, 325, 374, 429, 446, 259, , 263
ESP10, 260, 326, 376, 427, 446, 261, , 265
ESP10, 263, 324, 372, 424, 445, 263, , 267
ESP10, 266, 321, 368, 421, 442, 265, , 269
ESP10, 261, 314, 359, 414, 437, 267, , 271
ESP10, 264, 316, 359, 414, 437, 269, , 273
ESP10, 277, 316, 358, 414, 437, 271, , 275
ESP10, 279, 321, 362, 417, 438, 273, , 277
ESP10, 267, 309, 351, 407, 429, 275, , 279
ESP10, 271, 312, 353, 407, 432, 277, , 281
ESP10, 273, 318, 354, 407, 433, 279, , 283
ESP10, 275, 318, 355, 407, 434, 282, , 286
ESP10, 277, 318, 360, 408, 435, 284, , 288
ESP10, 284, 316, 360, 409, 434, 286, , 290
ESP10, 292, 318, 361, 412, 435, 288, , 292
ESP10, 295, 320, 362, 412, 435, 290, , 294
ESP10, 293, 318, 362, 408, 433, 292, , 296
ESP10, 300, 321, 367, 411, 434, 294, , 298
ESP10, 304, 323, 370, 409, 433, 296, , 300
ESP10, 311, 329, 378, 418, 438, 298, , 302
ESP10, 310, 328, 378, 416, 439, 300, , 304
ESP10, 319, 331, 380, 418, 440, 303, , 307
ESP10, 321, 332, 380, 418, 441, 305, , 309
ESP10, 323, 338, 382, 419, 443, 307, , 311
ESP10, 324, 339, 384, 420, 444, 309, , 313
ESP10, 329, 340, 386, 420, 446, 311, , 315
ESP10, 330, 340, 386, 420, 448, 313, , 317
ESP10, 333, 341, 385, 421, 451, 315, , 319
ESP10, 333, 348, 390, 422, 451, 317, , 321
ESP10, 334, 349, 393, 427, 453, 319, , 323
ESP10, 334, 355, 395, 430, 454, 321, , 325
ESP10, 327, 344, 389, 428, 445, 323, , 327
ESP10, 330, 346, 391, 429, 446, 326, , 330
ESP10, 326, 342, 387, 426, 443, 328, , 332
ESP10, 325, 341, 386, 426, 444, 330, , 334
ESP10, 327, 344, 388, 427, 446, 332, , 336
ESP10, 326, 345, 388, 426, 447, 334, , 338
ESP10, 325, 345, 386, 425, 445, 336, , 340
ESP10, 333, 351, 391, 429, 449, 338, , 342
ESP10, 333, 352, 390, 429, 447, 340, , 344
ESP10, 323, 343, 381, 422, 438, 342, , 346
ESP10, 326, 347, 386, 425, 441, 344, , 348
ESP10, 328, 346, 389, 424, 440, 346, , 350
ESP10, 328, 350, 385, 422, 439, 349, , 353
ESP10, 332, 353, 391, 425, 444, 351, , 355
ESP10, 332, 354, 389, 423, 443, 353, , 357
ESP10, 327, 349, 383, 419, 439, 355, , 359
ESP10, 321, 343, 377, 413, 434, 357, , 361
ESP10, 320, 342, 376, 412, 434, 359, , 363
ESP10, 323, 345, 379, 414, 437, 361, , 365
ESP10, 318, 342, 378, 411, 435, 363, , 367
ESP10, 326, 347, 387, 420, 442, 365, , 369
ESP10, 330, 350, 389, 421, 444, 367, , 371
ESP10, 327, 346, 387, 417, 440, 370, , 374
ESP10, 337, 352, 394, 421, 443, 372, , 376
ESP10, 336, 355, 395, 422, 442, 374, , 378
ESP10, 335, 353, 396, 421, 441, 376, , 380
ESP10, 327, 347, 391, 416, 437, 378, , 382
ESP10, 319, 342, 386, 411, 432, 380, , 384
ESP10, 307, 332, 375, 401, 421, 382, , 386
ESP10, 321, 345, 385, 409, 431, 384, , 388
ESP10, 318, 342, 384, 406, 429, 386, , 390
ESP10, 322, 348, 388, 410, 433, 388, , 392
ESP10, 313, 341, 381, 405, 425, 390, , 394
ESP10, 308, 332, 374, 399, 420, 393, , 397
ESP10, 309, 339, 376, 399, 420, 395, , 399
ESP10, 296, 330, 363, 389, 412, 397, , 401
ESP10, 299, 330, 366, 389, 413, 399, , 403
ESP10, 266, 301, 338, 363, 387, 401, , 405
ESP10, 299, 329, 367, 388, 414, 403, , 407
ESP10, 285, 316, 356, 375, 402, 405, , 409
ESP10, 259, 295, 334, 355, 382, 407, , 411
ESP10, 283, 312, 349, 369, 398, 409, , 413
ESP10, 284, 315, 347, 369, 399, 411, , 415
ESP10, 285, 320, 351, 372, 402, 413, , 417
ESP10, 279, 315, 347, 368, 397, 416, , 420
ESP10, 280, 313, 344, 367, 394, 418, , 422
ESP10, 283, 325, 347, 370, 396, 420, , 424
ESP10, 292, 334, 355, 376, 402, 422, , 426
ESP10, 306, 340, 361, 384, 406, 424, , 428
ESP10, 306, 340, 362, 384, 405, 426, , 430
ESP10, 299, 340, 365, 388, 410, 428, , 432
ESP10, 304, 339, 365, 387, 408, 430, , 434
ESP10, 293, 326, 357, 376, 398, 432, , 436
ESP10, 292, 324, 356, 377, 398, 434, , 438
ESP10, 286, 323, 351, 373, 394, 437, , 441
ESP10, 306, 334, 363, 388, 405, 439, , 443
ESP10, 305, 332, 362, 386, 403, 441, , 445
ESP10, 307, 334, 364, 388, 408, 443, , 447
ESP10, 307, 334, 363, 386, 406, 445, , 449
ESP10, 311, 336, 366, 388, 406, 447, , 451
ESP10, 319, 344, 372, 393, 411, 449, , 453
ESP10, 317, 344, 370, 391, 409, 451, , 455
ESP10, 324, 350, 375, 395, 413, 453, , 457
ESP10, 326, 352, 377, 395, 415, 455, , 459
ESP10, 319, 351, 370, 390, 412, 457, , 461
ESP10, 321, 354, 372, 391, 413, 460, , 464
ESP10, 319, 353, 370, 389, 411, 462, , 466
ESP10, 312, 349, 366, 385, 406, 464, , 468
ESP10, 315, 348, 365, 384, 405, 466, , 470
ESP10, 302, 334, 356, 374, 394, 468, , 472
ESP10, 311, 340, 361, 378, 399, 470, , 474
ESP10, 309, 339, 360, 376, 398, 472, , 476
ESP10, 323, 353, 373, 388, 410, 474, , 478
ESP10, 319, 348, 367, 384, 405, 476, , 480
ESP10, 328, 353, 376, 388, 410, 478, , 482
ESP10, 342, 366, 389, 398, 420, 480, , 484
ESP10, 353, 377, 398, 409, 429, 483, , 487
ESP10, 353, 376, 400, 411, 427, 485, , 489
ESP10, 351, 375, 398, 410, 425, 487, , 491
ESP10, 342, 367, 390, 401, 418, 489, , 493
ESP10, 342, 368, 394, 401, 420, 491, , 495
ESP10, 341, 370, 394, 402, 421, 493, , 497
ESP10, 338, 365, 388, 397, 414, 495, , 499
ESP10, 335, 362, 385, 393, 411, 497, , 501
ESP10, 333, 358, 383, 390, 409, 499, , 503
ESP10, 334, 361, 383, 392, 409, 501, , 505
ESP10, 332, 365, 383, 393, 408, 504, , 508
ESP10, 335, 369, 386, 397, 410, 506, , 510
ESP10, 335, 371, 388, 398, 410, 508, , 512
ESP10, 336, 372, 389, 401, 413, 510, , 514
ESP10, 340, 377, 391, 405, 415, 512, , 516
ESP10, 341, 377, 392, 406, 417, 514, , 518
ESP10, 341, 380, 393, 406, 417, 516, , 520
ESP10, 343, 379, 394, 408, 418, 518, , 522
ESP10, 331, 368, 381, 395, 404, 520, , 524
ESP10, 334, 370, 381, 395, 410, 522, , 526
ESP10, 334, 372, 383, 396, 409, 524, , 528
ESP10, 335, 372, 383, 398, 409, 527, , 531
ESP10, 335, 375, 383, 398, 409, 529, , 533
ESP10, 337, 376, 384, 398, 412, 531, , 535
ESP10, 336, 372, 382, 394, 407, 533, , 537
ESP10, 348, 381, 391, 401, 414, 535, , 539
ESP10, 352, 383, 392, 401, 414, 537, , 541
ESP10, 349, 381, 389, 398, 412, 539, , 543
ESP10, 351, 382, 391, 398, 413, 541, , 545
ESP10, 353, 382, 392, 398, 415, 543, , 547
ESP10, 353, 382, 394, 399, 415, 545, , 549
ESP10, 356, 385, 397, 405, 416, 547, , 551
ESP10, 356, 386, 397, 406, 417, 550, , 554
ESP10, 351, 381, 392, 402, 410, 552, , 556
ESP10, 346, 374, 386, 396, 405, 554, , 558
ESP10, 352, 375, 389, 397, 408, 556, , 560
ESP10, 347, 371, 380, 390, 398, 558, , 562
ESP10, 346, 369, 378, 389, 395, 560, , 564
ESP10, 349, 376, 381, 393, 397, 562, , 566
ESP10, 348, 376, 382, 392, 397, 564, , 568
ESP10, 348, 375, 384, 388, 392, 566, , 570
ESP10, 351, 378, 385, 391, 395, 568, , 572
ESP10, 359, 377, 385, 390, 393, 571, , 575
ESP10, 373, 393, 397, 400, 402, 573, , 577
ESP10, 367, 385, 391, 395, 397, 575, , 579
ESP10, 369, 384, 390, 394, 396, 577, , 581
ESP10, 378, 390, 395, 397, 398, 579, , 583
ESP10, 370, 383, 389, 393, 394, 581, , 585
ESP10, 368, 381, 389, 392, 393, 583, , 587
ESP10, 369, 378, 385, 389, 389, 585, , 589
ESP10, 377, 382, 386, 387, 388, 587, , 591
ESP10, 385, 388, 390, 391, 392, 589, , 593
ESP10, 388, 391, 393, 395, 395, 591, , 595
ESP10, 388, 390, 392, 394, 394, 594, , 598
ESP10, 381, 384, 386, 387, 388, 596, , 600
ESP10, 386, 388, 390, 391, 392, 598, , 602
ESP10, 386, 388, 390, 391, 392, 600, , 604
ESP10, 385, 388, 390, 391, 392, 602, , 606
ESP10, 385, 387, 389, 390, 391, 604, , 608
ESP10, 384, 387, 388, 389, 390, 606, , 610
ESP10, 382, 385, 386, 387, 388, 608, , 612
ESP10, 381, 383, 384, 386, 387, 610, , 614
ESP10, 379, 381, 383, 384, 385, 612, , 616
ESP10, 380, 382, 383, 384, 385, 614, , 618
ESP10, 379, 381, 383, 384, 385, 617, , 621
ESP10, 379, 382, 383, 384, 385, 619, , 623
ESP10, 379, 381, 382, 383, 384, 621, , 625
ESP10, 378, 380, 382, 383, 384, 623, , 627
ESP10, 378, 380, 382, 383, 384, 625, , 629
ESP10, 378, 380, 381, 382, 383, 627, , 631
ESP10, 378, 379, 381, 382, 383, 629, , 633
ESP10, 371, 373, 375, 375, 376, 631, , 635
ESP10, 331, 335, 337, 338, 339, 633, , 637
ESP10, 338, 339, 341, 342, 343, 635, , 639
ESP10, 346, 347, 349, 350, 351, 638, , 642
ESP10, 358, 359, 361, 362, 362, 640, , 644
ESP10, 357, 358, 360, 361, 362, 642, , 646
ESP10, 358, 360, 361, 362, 363, 644, , 648
ESP10, 364, 366, 367, 368, 369, 646, , 650
ESP10, 364, 366, 367, 368, 369, 648, , 652
ESP10, 364, 366, 367, 368, 369, 650, , 654
ESP10, 364, 366, 367, 368, 369, 652, , 656
ESP10, 365, 366, 367, 368, 369, 654, , 658
ESP10, 365, 366, 367, 368, 369, 656, , 660
ESP10, 364, 366, 367, 368, 368, 658, , 662
ESP10, 364, 366, 367, 368, 368, 661, , 665
ESP10, 364, 366, 367, 368, 369, 663, , 667
ESP10, 364, 366, 367, 368, 368, 665, , 669
ESP10, 365, 366, 367, 368, 368, 667, , 671
ESP10, 365, 366, 367, 368, 369, 669, , 673
ESP10, 365, 366, 367, 368, 369, 671, , 675
ESP10, 364, 366, 367, 368, 368, 673, , 677
ESP10, 366, 367, 368, 369, 369, 675, , 679
ESP10, 366, 367, 368, 369, 370, 677, , 681
ESP10, 366, 368, 369, 370, 370, 679, , 683
ESP10, 367, 368, 369, 370, 371, 681, , 685
ESP10, 368, 368, 370, 370, 371, 684, , 688
ESP10, 368, 369, 370, 370, 371, 686, , 690
ESP10, 368, 369, 370, 371, 371, 688, , 692
ESP10, 373, 374, 375, 375, 376, 690, , 694
ESP10, 374, 375, 376, 376, 377, 692, , 696
ESP10, 374, 375, 376, 377, 377, 694, , 698
ESP10, 375, 376, 377, 377, 378, 696, , 700
ESP10, 375, 376, 377, 377, 378, 698, , 702
ESP10, 375, 376, 377, 378, 378, 700, , 704
ESP10, 375, 377, 377, 378, 378, 702, , 706
ESP10, 374, 375, 376, 377, 377, 705, , 709
ESP10, 374, 375, 376, 377, 377, 707, , 711
ESP10, 375, 376, 377, 377, 378, 709, , 713
ESP10, 375, 376, 377, 377, 378, 711, , 715
ESP10, 375, 376, 377, 377, 378, 713, , 717
ESP10, 375, 376, 377, 377, 378, 715, , 719
ESP10, 375, 376, 377, 377, 378, 717, , 721
ESP10, 375, 376, 376, 377, 377, 719, , 723
ESP10, 374, 375, 376, 376, 377, 721, , 725
ESP10, 374, 375, 376, 376, 376, 723, , 727
ESP10, 374, 375, 375, 376, 376, 725, , 729
ESP10, 374, 375, 376, 376, 376, 728, , 732
ESP10, 375, 376, 376, 376, 377, 730, , 734
ESP10, 375, 375, 376, 376, 377, 732, , 736
ESP10, 375, 376, 377, 377, 377, 734, , 738
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/DARM8W_SQIN.ESPF10.csv
DARM8W_SQIN.ESPF0.csv|2026-08-15
DARM8W_SQIN.ESPF10.csv|2026-08-15
DARM8W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
BITTERROOT - NEAR DARBY
(
DARM8
)
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
254
437
84
855
519
APR-JUL
217
386
83
785
465
APR-AUG
238
416
84
828
497
JAN-SEP
291
475
83
895
575
JAN-JUL
255
418
80
825
521
OCT-SEP
333
517
83
937
624
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/DARM8W_SQIN.ESPF10.csv
DARM8W_SQIN.ESPF0.csv|2026-08-15
DARM8W_SQIN.ESPF10.csv|2026-08-15
DARM8W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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