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Water Year
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SF BOISE - ANDERSON RANCH DAM
(
ARAI1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-04-15
Issued:
2026-04-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
199
236
47
310
498
APR-JUL
179
217
47
283
465
JAN-SEP
310
347
59
421
589
JAN-JUL
290
328
59
395
556
OCT-SEP
386
422
65
496
647
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-04-15
Issued:
2026-04-15
Hide Forecast
APR-SEP
190
221
44
305
498
APR-JUL
171
201
43
281
465
JAN-SEP
301
332
56
416
589
JAN-JUL
282
312
56
392
556
OCT-SEP
376
407
63
492
647
Reference
ESP with 0 Days QPF
Ensemble:
2026-04-15
Issued:
2026-04-15
Hide Forecast
APR-SEP
181
226
45
312
498
APR-JUL
160
205
44
287
465
JAN-SEP
292
337
57
423
589
JAN-JUL
271
316
57
398
556
OCT-SEP
367
412
64
498
647
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 181, 260, 373, 414, 474, 71, , 75
ESP10, 180, 258, 371, 412, 473, 75, , 79
ESP10, 179, 257, 370, 412, 473, 78, , 82
ESP10, 184, 260, 373, 414, 475, 82, , 86
ESP10, 185, 259, 372, 413, 475, 85, , 89
ESP10, 183, 255, 368, 410, 473, 88, , 92
ESP10, 183, 253, 366, 408, 471, 92, , 96
ESP10, 187, 256, 369, 411, 474, 95, , 99
ESP10, 186, 256, 369, 410, 473, 98, , 102
ESP10, 178, 247, 361, 404, 467, 102, , 106
ESP10, 175, 247, 359, 401, 465, 105, , 109
ESP10, 181, 258, 365, 406, 470, 109, , 113
ESP10, 178, 261, 362, 404, 468, 112, , 116
ESP10, 175, 259, 359, 401, 466, 115, , 119
ESP10, 167, 251, 351, 395, 461, 119, , 123
ESP10, 156, 234, 336, 382, 446, 122, , 126
ESP10, 147, 224, 329, 375, 437, 126, , 130
ESP10, 153, 228, 335, 382, 440, 129, , 133
ESP10, 158, 228, 335, 382, 440, 132, , 136
ESP10, 165, 239, 340, 387, 445, 136, , 140
ESP10, 157, 235, 332, 380, 437, 139, , 143
ESP10, 166, 245, 339, 386, 443, 142, , 146
ESP10, 165, 245, 339, 386, 442, 146, , 150
ESP10, 175, 255, 353, 396, 451, 149, , 153
ESP10, 174, 257, 352, 394, 449, 153, , 157
ESP10, 173, 256, 350, 394, 446, 156, , 160
ESP10, 182, 261, 351, 396, 446, 159, , 163
ESP10, 184, 265, 353, 401, 449, 163, , 167
ESP10, 178, 261, 347, 397, 443, 166, , 170
ESP10, 166, 248, 333, 388, 431, 170, , 174
ESP10, 164, 251, 332, 391, 434, 173, , 177
ESP10, 159, 250, 326, 390, 431, 176, , 180
ESP10, 170, 262, 333, 397, 445, 180, , 184
ESP10, 175, 263, 334, 407, 456, 183, , 187
ESP10, 175, 263, 334, 409, 457, 186, , 190
ESP10, 176, 261, 334, 407, 458, 190, , 194
ESP10, 172, 256, 333, 405, 459, 193, , 197
ESP10, 165, 247, 325, 397, 453, 197, , 201
ESP10, 171, 247, 325, 397, 454, 200, , 204
ESP10, 178, 250, 333, 402, 457, 203, , 207
ESP10, 195, 266, 346, 413, 469, 207, , 211
ESP10, 215, 285, 357, 425, 477, 210, , 214
ESP10, 213, 289, 361, 424, 474, 214, , 218
ESP10, 220, 293, 368, 427, 478, 217, , 221
ESP10, 225, 300, 373, 432, 481, 220, , 224
ESP10, 228, 302, 379, 433, 484, 224, , 228
ESP10, 230, 306, 383, 435, 488, 227, , 231
ESP10, 235, 309, 385, 436, 491, 230, , 234
ESP10, 235, 305, 383, 434, 490, 234, , 238
ESP10, 235, 305, 378, 431, 488, 237, , 241
ESP10, 235, 309, 377, 429, 488, 241, , 245
ESP10, 231, 305, 373, 426, 483, 244, , 248
ESP10, 241, 311, 384, 433, 492, 247, , 251
ESP10, 243, 313, 387, 435, 494, 251, , 255
ESP10, 244, 319, 386, 435, 495, 254, , 258
ESP10, 249, 318, 386, 438, 494, 257, , 261
ESP10, 244, 310, 384, 434, 489, 261, , 265
ESP10, 244, 311, 385, 433, 489, 264, , 268
ESP10, 251, 320, 391, 440, 493, 268, , 272
ESP10, 236, 306, 379, 426, 482, 271, , 275
ESP10, 232, 306, 377, 425, 477, 274, , 278
ESP10, 239, 315, 386, 430, 480, 278, , 282
ESP10, 230, 306, 376, 423, 476, 281, , 285
ESP10, 232, 303, 372, 425, 473, 285, , 289
ESP10, 236, 299, 374, 429, 475, 288, , 292
ESP10, 232, 288, 368, 423, 467, 291, , 295
ESP10, 226, 284, 362, 420, 466, 295, , 299
ESP10, 248, 307, 380, 437, 482, 298, , 302
ESP10, 251, 304, 377, 434, 478, 301, , 305
ESP10, 252, 294, 371, 429, 471, 305, , 309
ESP10, 251, 292, 364, 421, 468, 308, , 312
ESP10, 241, 280, 351, 412, 462, 312, , 316
ESP10, 227, 265, 338, 403, 455, 315, , 319
ESP10, 225, 267, 337, 408, 454, 318, , 322
ESP10, 232, 273, 343, 413, 464, 322, , 326
ESP10, 227, 260, 332, 403, 458, 325, , 329
ESP10, 222, 254, 324, 397, 451, 329, , 333
ESP10, 231, 271, 334, 405, 459, 332, , 336
ESP10, 229, 281, 333, 404, 457, 335, , 339
ESP10, 236, 289, 336, 405, 459, 339, , 343
ESP10, 239, 290, 334, 402, 453, 342, , 346
ESP10, 243, 288, 345, 405, 454, 345, , 349
ESP10, 242, 285, 342, 406, 450, 349, , 353
ESP10, 243, 283, 341, 405, 448, 352, , 356
ESP10, 236, 275, 335, 399, 442, 356, , 360
ESP10, 239, 273, 336, 397, 444, 359, , 363
ESP10, 244, 273, 336, 395, 448, 362, , 366
ESP10, 251, 278, 343, 400, 455, 366, , 370
ESP10, 245, 271, 338, 395, 450, 369, , 373
ESP10, 246, 274, 341, 394, 451, 373, , 377
ESP10, 244, 273, 338, 390, 448, 376, , 380
ESP10, 257, 272, 341, 389, 448, 379, , 383
ESP10, 252, 264, 333, 382, 443, 383, , 387
ESP10, 251, 270, 333, 381, 443, 386, , 390
ESP10, 248, 273, 333, 378, 440, 389, , 393
ESP10, 243, 278, 328, 376, 437, 393, , 397
ESP10, 243, 283, 328, 378, 437, 396, , 400
ESP10, 247, 286, 331, 381, 438, 400, , 404
ESP10, 253, 292, 339, 389, 440, 403, , 407
ESP10, 260, 292, 342, 390, 439, 406, , 410
ESP10, 264, 311, 342, 397, 440, 410, , 414
ESP10, 270, 315, 341, 397, 440, 413, , 417
ESP10, 272, 315, 341, 400, 439, 417, , 421
ESP10, 273, 315, 343, 400, 438, 420, , 424
ESP10, 281, 319, 349, 403, 441, 423, , 427
ESP10, 281, 320, 348, 405, 442, 427, , 431
ESP10, 278, 316, 345, 404, 439, 430, , 434
ESP10, 285, 324, 352, 410, 444, 433, , 437
ESP10, 285, 324, 353, 410, 444, 437, , 441
ESP10, 287, 325, 357, 413, 449, 440, , 444
ESP10, 285, 326, 357, 412, 448, 444, , 448
ESP10, 289, 328, 363, 414, 450, 447, , 451
ESP10, 291, 333, 366, 416, 451, 450, , 454
ESP10, 291, 333, 367, 417, 451, 454, , 458
ESP10, 291, 338, 368, 418, 451, 457, , 461
ESP10, 296, 340, 368, 419, 451, 461, , 465
ESP10, 297, 340, 370, 421, 451, 464, , 468
ESP10, 297, 341, 370, 423, 451, 467, , 471
ESP10, 297, 343, 373, 424, 451, 471, , 475
ESP10, 298, 344, 376, 427, 452, 474, , 478
ESP10, 299, 344, 382, 431, 452, 477, , 481
ESP10, 298, 344, 379, 428, 449, 481, , 485
ESP10, 300, 345, 379, 430, 451, 484, , 488
ESP10, 295, 339, 376, 425, 446, 488, , 492
ESP10, 298, 339, 375, 422, 446, 491, , 495
ESP10, 309, 345, 378, 425, 449, 494, , 498
ESP10, 312, 348, 382, 425, 449, 498, , 502
ESP10, 309, 342, 377, 420, 446, 501, , 505
ESP10, 307, 338, 383, 416, 444, 505, , 509
ESP10, 311, 338, 380, 417, 445, 508, , 512
ESP10, 317, 343, 388, 421, 446, 511, , 515
ESP10, 321, 349, 389, 421, 445, 515, , 519
ESP10, 325, 354, 394, 426, 450, 518, , 522
ESP10, 328, 360, 396, 431, 454, 521, , 525
ESP10, 331, 363, 399, 434, 458, 525, , 529
ESP10, 328, 364, 396, 434, 458, 528, , 532
ESP10, 318, 357, 387, 427, 456, 532, , 536
ESP10, 320, 357, 387, 426, 456, 535, , 539
ESP10, 314, 342, 375, 415, 445, 538, , 542
ESP10, 332, 358, 390, 429, 460, 542, , 546
ESP10, 334, 358, 390, 429, 459, 545, , 549
ESP10, 341, 358, 395, 429, 459, 549, , 553
ESP10, 351, 369, 403, 439, 466, 552, , 556
ESP10, 347, 368, 400, 436, 462, 555, , 559
ESP10, 346, 369, 407, 435, 463, 559, , 563
ESP10, 343, 367, 408, 438, 461, 562, , 566
ESP10, 351, 375, 416, 446, 469, 565, , 569
ESP10, 345, 369, 412, 441, 463, 569, , 573
ESP10, 340, 365, 411, 438, 457, 572, , 576
ESP10, 338, 364, 410, 440, 456, 576, , 580
ESP10, 346, 372, 416, 448, 460, 579, , 583
ESP10, 349, 377, 417, 449, 461, 582, , 586
ESP10, 350, 377, 417, 449, 461, 586, , 590
ESP10, 353, 376, 411, 447, 455, 589, , 593
ESP10, 359, 380, 413, 448, 457, 592, , 596
ESP10, 361, 382, 413, 446, 456, 596, , 600
ESP10, 363, 383, 413, 446, 456, 599, , 603
ESP10, 364, 381, 418, 446, 458, 603, , 607
ESP10, 368, 386, 419, 449, 462, 606, , 610
ESP10, 378, 395, 426, 457, 469, 609, , 613
ESP10, 381, 396, 426, 455, 472, 613, , 617
ESP10, 372, 386, 416, 446, 462, 616, , 620
ESP10, 385, 401, 432, 461, 477, 620, , 624
ESP10, 387, 406, 432, 463, 478, 623, , 627
ESP10, 389, 405, 430, 462, 476, 626, , 630
ESP10, 392, 409, 437, 461, 475, 630, , 634
ESP10, 389, 406, 436, 460, 471, 633, , 637
ESP10, 396, 411, 442, 466, 475, 636, , 640
ESP10, 410, 421, 456, 475, 483, 640, , 644
ESP10, 415, 424, 456, 479, 485, 643, , 647
ESP10, 417, 427, 458, 479, 486, 647, , 651
ESP10, 416, 429, 457, 478, 485, 650, , 654
ESP10, 415, 432, 456, 477, 483, 653, , 657
ESP10, 402, 421, 445, 463, 470, 657, , 661
ESP10, 398, 418, 443, 461, 468, 660, , 664
ESP10, 400, 422, 445, 461, 470, 664, , 668
ESP10, 395, 417, 443, 456, 468, 667, , 671
ESP10, 401, 418, 445, 457, 470, 670, , 674
ESP10, 406, 421, 451, 459, 474, 674, , 678
ESP10, 405, 425, 450, 459, 472, 677, , 681
ESP10, 404, 426, 449, 462, 471, 680, , 684
ESP10, 413, 435, 459, 469, 479, 684, , 688
ESP10, 412, 431, 454, 468, 475, 687, , 691
ESP10, 422, 441, 464, 478, 485, 691, , 695
ESP10, 418, 440, 461, 476, 483, 694, , 698
ESP10, 416, 441, 461, 475, 483, 697, , 701
ESP10, 415, 441, 459, 473, 482, 701, , 705
ESP10, 422, 448, 466, 478, 484, 704, , 708
ESP10, 410, 434, 452, 465, 475, 708, , 712
ESP10, 436, 458, 474, 487, 494, 711, , 715
ESP10, 436, 458, 473, 486, 493, 714, , 718
ESP10, 426, 453, 467, 479, 484, 718, , 722
ESP10, 425, 453, 466, 478, 486, 721, , 725
ESP10, 418, 443, 457, 469, 477, 724, , 728
ESP10, 425, 450, 463, 473, 481, 728, , 732
ESP10, 426, 453, 463, 474, 482, 731, , 735
Max Scale
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Scale To Last 45 Days
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/ARAI1N_SQIN.ESPF10.csv
ARAI1N_SQIN.ESPF0.csv|2026-04-15
ARAI1N_SQIN.ESPF10.csv|2026-04-15
ARAI1N_SQIN.ESPFM.csv|2026-04-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast