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Archive:
Water Year
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BOISE - ARROWROCK DAM
(
ARKI1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-05-20
Issued:
2026-05-20
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
628
639
53
707
1212
APR-JUL
565
574
51
638
1121
JAN-SEP
916
928
63
995
1479
JAN-JUL
853
862
62
926
1388
OCT-SEP
1121
1132
69
1200
1636
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-05-20
Issued:
2026-05-20
Hide Forecast
APR-SEP
626
635
52
687
1212
APR-JUL
564
569
51
618
1121
JAN-SEP
915
923
62
976
1479
JAN-JUL
852
858
62
906
1388
OCT-SEP
1119
1128
69
1180
1636
Reference
ESP with 0 Days QPF
Ensemble:
2026-05-20
Issued:
2026-05-20
Hide Forecast
APR-SEP
632
660
54
757
1212
APR-JUL
566
596
53
681
1121
JAN-SEP
920
949
64
1045
1479
JAN-JUL
854
884
64
969
1388
OCT-SEP
1125
1153
70
1250
1636
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 190, 264, 371, 409, 465, 71, , 75
ESP10, 190, 263, 370, 408, 464, 74, , 78
ESP10, 189, 261, 370, 407, 465, 77, , 81
ESP10, 193, 265, 373, 409, 467, 80, , 84
ESP10, 194, 264, 372, 409, 466, 82, , 86
ESP10, 192, 260, 369, 408, 464, 85, , 89
ESP10, 192, 259, 368, 407, 463, 88, , 92
ESP10, 195, 262, 370, 409, 465, 91, , 95
ESP10, 195, 261, 370, 409, 465, 94, , 98
ESP10, 190, 253, 365, 403, 459, 97, , 101
ESP10, 187, 252, 364, 401, 456, 100, , 104
ESP10, 191, 268, 369, 405, 461, 103, , 107
ESP10, 190, 274, 368, 404, 460, 105, , 109
ESP10, 189, 274, 366, 413, 461, 108, , 112
ESP10, 185, 267, 359, 409, 457, 111, , 115
ESP10, 176, 253, 345, 397, 443, 114, , 118
ESP10, 168, 243, 337, 394, 437, 117, , 121
ESP10, 173, 246, 342, 396, 440, 120, , 124
ESP10, 179, 247, 342, 398, 441, 123, , 127
ESP10, 185, 252, 346, 401, 444, 126, , 130
ESP10, 176, 245, 339, 395, 438, 128, , 132
ESP10, 184, 258, 345, 401, 443, 131, , 135
ESP10, 184, 259, 347, 401, 443, 134, , 138
ESP10, 194, 270, 359, 409, 451, 137, , 141
ESP10, 193, 273, 358, 409, 450, 140, , 144
ESP10, 191, 271, 355, 406, 448, 143, , 147
ESP10, 196, 272, 356, 409, 449, 146, , 150
ESP10, 198, 278, 358, 411, 450, 149, , 153
ESP10, 193, 276, 351, 408, 445, 151, , 155
ESP10, 179, 262, 338, 398, 434, 154, , 158
ESP10, 176, 262, 338, 400, 434, 157, , 161
ESP10, 172, 258, 333, 398, 432, 160, , 164
ESP10, 181, 264, 338, 403, 442, 163, , 167
ESP10, 186, 268, 340, 406, 452, 166, , 170
ESP10, 189, 270, 341, 407, 458, 169, , 173
ESP10, 195, 273, 343, 409, 464, 172, , 176
ESP10, 192, 275, 344, 405, 462, 174, , 178
ESP10, 184, 270, 337, 398, 457, 177, , 181
ESP10, 193, 272, 338, 399, 459, 180, , 184
ESP10, 201, 276, 344, 404, 462, 183, , 187
ESP10, 217, 292, 356, 414, 473, 186, , 190
ESP10, 226, 303, 358, 415, 474, 189, , 193
ESP10, 224, 301, 361, 411, 471, 192, , 196
ESP10, 233, 305, 366, 418, 475, 195, , 199
ESP10, 237, 310, 370, 422, 478, 197, , 201
ESP10, 240, 311, 376, 423, 481, 200, , 204
ESP10, 242, 312, 380, 424, 485, 203, , 207
ESP10, 249, 320, 383, 427, 489, 206, , 210
ESP10, 254, 318, 380, 424, 488, 209, , 213
ESP10, 252, 315, 376, 423, 487, 212, , 216
ESP10, 254, 319, 375, 421, 486, 215, , 219
ESP10, 250, 316, 374, 422, 482, 218, , 222
ESP10, 261, 323, 388, 434, 492, 220, , 224
ESP10, 264, 326, 392, 438, 493, 223, , 227
ESP10, 266, 328, 392, 439, 494, 226, , 230
ESP10, 270, 330, 391, 440, 493, 229, , 233
ESP10, 265, 324, 387, 434, 488, 232, , 236
ESP10, 264, 325, 387, 438, 487, 235, , 239
ESP10, 270, 333, 392, 452, 491, 238, , 242
ESP10, 253, 320, 381, 440, 479, 241, , 245
ESP10, 248, 315, 374, 434, 472, 243, , 247
ESP10, 259, 324, 386, 439, 477, 246, , 250
ESP10, 250, 315, 380, 429, 473, 249, , 253
ESP10, 248, 312, 376, 422, 470, 252, , 256
ESP10, 251, 311, 374, 421, 472, 255, , 259
ESP10, 248, 300, 365, 411, 464, 258, , 262
ESP10, 243, 294, 358, 407, 459, 261, , 265
ESP10, 264, 312, 373, 420, 473, 264, , 268
ESP10, 269, 311, 372, 418, 471, 266, , 270
ESP10, 272, 303, 365, 413, 464, 269, , 273
ESP10, 271, 293, 358, 406, 461, 272, , 276
ESP10, 258, 280, 346, 405, 456, 275, , 279
ESP10, 244, 272, 336, 397, 448, 278, , 282
ESP10, 243, 272, 336, 402, 448, 281, , 285
ESP10, 251, 280, 345, 408, 459, 284, , 288
ESP10, 241, 269, 334, 402, 452, 287, , 291
ESP10, 236, 266, 326, 398, 446, 289, , 293
ESP10, 244, 285, 334, 405, 454, 292, , 296
ESP10, 246, 295, 336, 405, 454, 295, , 299
ESP10, 251, 297, 340, 406, 455, 298, , 302
ESP10, 255, 296, 337, 403, 450, 301, , 305
ESP10, 261, 301, 350, 410, 453, 304, , 308
ESP10, 268, 306, 355, 420, 458, 307, , 311
ESP10, 269, 304, 355, 421, 457, 310, , 314
ESP10, 265, 300, 353, 417, 453, 312, , 316
ESP10, 265, 303, 354, 416, 452, 315, , 319
ESP10, 269, 304, 360, 415, 452, 318, , 322
ESP10, 273, 308, 365, 419, 459, 321, , 325
ESP10, 271, 302, 359, 414, 456, 324, , 328
ESP10, 277, 304, 360, 414, 457, 327, , 331
ESP10, 285, 310, 363, 417, 461, 330, , 334
ESP10, 284, 313, 367, 415, 461, 333, , 337
ESP10, 284, 304, 360, 408, 455, 335, , 339
ESP10, 282, 303, 360, 407, 453, 338, , 342
ESP10, 281, 307, 357, 404, 451, 341, , 345
ESP10, 279, 313, 354, 402, 449, 344, , 348
ESP10, 279, 315, 354, 403, 449, 347, , 351
ESP10, 283, 319, 355, 407, 450, 350, , 354
ESP10, 286, 326, 363, 411, 452, 353, , 357
ESP10, 290, 329, 365, 412, 451, 356, , 360
ESP10, 293, 335, 366, 418, 451, 358, , 362
ESP10, 302, 343, 369, 418, 452, 361, , 365
ESP10, 303, 343, 371, 421, 452, 364, , 368
ESP10, 304, 342, 372, 420, 451, 367, , 371
ESP10, 311, 346, 380, 428, 454, 370, , 374
ESP10, 314, 346, 380, 428, 454, 373, , 377
ESP10, 311, 342, 379, 425, 451, 376, , 380
ESP10, 319, 347, 384, 431, 455, 379, , 383
ESP10, 326, 347, 385, 432, 458, 381, , 385
ESP10, 327, 351, 387, 433, 462, 384, , 388
ESP10, 325, 355, 385, 436, 461, 387, , 391
ESP10, 329, 358, 387, 438, 463, 390, , 394
ESP10, 330, 359, 388, 440, 463, 393, , 397
ESP10, 331, 360, 390, 441, 463, 396, , 400
ESP10, 331, 363, 391, 442, 463, 399, , 403
ESP10, 331, 365, 392, 443, 464, 402, , 406
ESP10, 332, 365, 394, 445, 464, 404, , 408
ESP10, 334, 365, 395, 444, 463, 407, , 411
ESP10, 334, 370, 399, 445, 463, 410, , 414
ESP10, 339, 373, 402, 448, 464, 413, , 417
ESP10, 342, 374, 405, 450, 465, 416, , 420
ESP10, 340, 372, 402, 448, 463, 419, , 423
ESP10, 341, 374, 403, 450, 465, 422, , 426
ESP10, 337, 369, 397, 445, 460, 425, , 429
ESP10, 338, 368, 399, 443, 460, 427, , 431
ESP10, 343, 372, 403, 446, 464, 430, , 434
ESP10, 349, 383, 415, 451, 469, 433, , 437
ESP10, 351, 381, 412, 447, 466, 436, , 440
ESP10, 350, 380, 418, 444, 463, 439, , 443
ESP10, 352, 377, 415, 441, 463, 442, , 446
ESP10, 352, 377, 414, 441, 460, 445, , 449
ESP10, 353, 377, 412, 442, 462, 448, , 452
ESP10, 357, 380, 417, 445, 464, 450, , 454
ESP10, 361, 387, 418, 446, 467, 453, , 457
ESP10, 366, 392, 422, 450, 474, 456, , 460
ESP10, 365, 391, 421, 454, 474, 459, , 463
ESP10, 358, 383, 412, 449, 472, 462, , 466
ESP10, 359, 385, 413, 448, 473, 465, , 469
ESP10, 346, 370, 405, 437, 462, 468, , 472
ESP10, 362, 387, 419, 450, 477, 471, , 475
ESP10, 365, 389, 420, 451, 476, 473, , 477
ESP10, 371, 391, 423, 453, 476, 476, , 480
ESP10, 379, 400, 429, 460, 483, 479, , 483
ESP10, 376, 396, 425, 456, 480, 482, , 486
ESP10, 376, 396, 430, 455, 478, 485, , 489
ESP10, 376, 396, 428, 454, 477, 488, , 492
ESP10, 382, 402, 434, 461, 482, 491, , 495
ESP10, 375, 397, 431, 454, 476, 494, , 498
ESP10, 370, 394, 428, 451, 472, 496, , 500
ESP10, 369, 393, 428, 452, 471, 499, , 503
ESP10, 381, 399, 435, 460, 475, 502, , 506
ESP10, 384, 402, 437, 462, 476, 505, , 509
ESP10, 385, 401, 439, 460, 476, 508, , 512
ESP10, 384, 401, 433, 460, 470, 511, , 515
ESP10, 393, 409, 438, 464, 475, 514, , 518
ESP10, 393, 412, 438, 463, 475, 517, , 521
ESP10, 395, 412, 437, 464, 474, 519, , 523
ESP10, 393, 410, 439, 462, 474, 522, , 526
ESP10, 396, 414, 439, 464, 476, 525, , 529
ESP10, 405, 422, 448, 473, 483, 528, , 532
ESP10, 403, 420, 446, 471, 485, 531, , 535
ESP10, 394, 412, 439, 463, 477, 534, , 538
ESP10, 409, 428, 451, 476, 489, 537, , 541
ESP10, 411, 430, 453, 478, 491, 540, , 544
ESP10, 412, 430, 455, 479, 490, 542, , 546
ESP10, 414, 431, 460, 480, 489, 545, , 549
ESP10, 412, 427, 457, 477, 485, 548, , 552
ESP10, 418, 432, 460, 480, 490, 551, , 555
ESP10, 431, 439, 466, 486, 495, 554, , 558
ESP10, 432, 443, 466, 488, 495, 557, , 561
ESP10, 432, 446, 469, 488, 495, 560, , 564
ESP10, 435, 454, 471, 491, 498, 563, , 567
ESP10, 432, 454, 472, 491, 496, 565, , 569
ESP10, 419, 444, 461, 479, 485, 568, , 572
ESP10, 415, 441, 460, 475, 482, 571, , 575
ESP10, 423, 446, 464, 478, 484, 574, , 578
ESP10, 419, 441, 461, 474, 484, 577, , 581
ESP10, 423, 442, 462, 474, 484, 580, , 584
ESP10, 426, 445, 468, 477, 488, 583, , 587
ESP10, 425, 449, 467, 477, 488, 586, , 590
ESP10, 424, 449, 468, 478, 487, 588, , 592
ESP10, 426, 449, 470, 478, 487, 591, , 595
ESP10, 429, 448, 469, 479, 486, 594, , 598
ESP10, 438, 454, 474, 486, 492, 597, , 601
ESP10, 436, 451, 470, 484, 491, 600, , 604
ESP10, 435, 452, 471, 484, 492, 603, , 607
ESP10, 435, 451, 469, 483, 490, 606, , 610
ESP10, 439, 458, 475, 486, 493, 609, , 613
ESP10, 432, 449, 466, 479, 487, 611, , 615
ESP10, 440, 456, 473, 486, 493, 614, , 618
ESP10, 441, 459, 472, 485, 492, 617, , 621
ESP10, 432, 453, 468, 477, 484, 620, , 624
ESP10, 430, 451, 467, 476, 484, 623, , 627
ESP10, 424, 442, 457, 467, 476, 626, , 630
ESP10, 429, 449, 461, 469, 477, 629, , 633
ESP10, 428, 452, 463, 469, 478, 632, , 636
ESP10, 427, 452, 461, 469, 478, 634, , 638
ESP10, 426, 451, 463, 469, 477, 637, , 641
ESP10, 427, 447, 459, 466, 474, 640, , 644
ESP10, 425, 447, 458, 465, 473, 643, , 647
ESP10, 424, 446, 456, 463, 471, 646, , 650
ESP10, 424, 447, 458, 465, 472, 649, , 653
ESP10, 436, 452, 464, 469, 476, 652, , 656
ESP10, 444, 457, 469, 475, 480, 655, , 659
ESP10, 444, 459, 470, 477, 481, 657, , 661
ESP10, 446, 460, 470, 479, 483, 660, , 664
ESP10, 446, 461, 469, 477, 481, 663, , 667
ESP10, 443, 460, 467, 475, 479, 666, , 670
ESP10, 450, 464, 470, 478, 481, 669, , 673
ESP10, 450, 464, 471, 479, 481, 672, , 676
ESP10, 449, 464, 470, 478, 480, 675, , 679
ESP10, 450, 464, 470, 479, 482, 678, , 682
ESP10, 450, 464, 471, 479, 482, 680, , 684
ESP10, 450, 465, 471, 479, 483, 683, , 687
ESP10, 452, 466, 472, 479, 483, 686, , 690
ESP10, 453, 466, 471, 478, 482, 689, , 693
ESP10, 454, 467, 472, 478, 481, 692, , 696
ESP10, 447, 461, 467, 472, 476, 695, , 699
ESP10, 448, 461, 467, 472, 474, 698, , 702
ESP10, 443, 457, 463, 469, 471, 701, , 705
ESP10, 445, 459, 464, 471, 472, 703, , 707
ESP10, 444, 457, 462, 469, 470, 706, , 710
ESP10, 450, 459, 465, 471, 472, 709, , 713
ESP10, 453, 460, 466, 471, 472, 712, , 716
ESP10, 453, 460, 465, 469, 471, 715, , 719
ESP10, 452, 460, 465, 468, 470, 718, , 722
ESP10, 452, 460, 464, 467, 468, 721, , 725
ESP10, 453, 461, 465, 466, 467, 724, , 728
ESP10, 452, 459, 464, 465, 466, 726, , 730
ESP10, 452, 460, 464, 465, 466, 729, , 733
ESP10, 451, 459, 464, 465, 466, 732, , 736
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ESP10
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Data Files
/chpsesp/ensemble/natural/ARKI1N_SQIN.ESPF10.csv
ARKI1N_SQIN.ESPF0.csv|2026-05-20
ARKI1N_SQIN.ESPF10.csv|2026-05-20
ARKI1N_SQIN.ESPFM.csv|2026-05-20
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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