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Water Year
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WILLOW CREEK - NEAR RIRIE
(
RIRI1
)
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
6
6
11
7
60
APR-JUL
7
7
11
7
58
APR-AUG
6
6
11
6
59
JAN-SEP
18
18
26
18
71
JAN-JUL
18
18
27
18
69
OCT-SEP
27
27
35
28
79
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
6
6
11
7
60
APR-JUL
7
7
11
7
58
APR-AUG
6
6
11
6
59
JAN-SEP
18
18
26
18
71
JAN-JUL
18
18
27
18
69
OCT-SEP
27
27
35
28
79
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
6
6
11
7
60
APR-JUL
7
7
11
7
58
APR-AUG
6
6
11
6
59
JAN-SEP
18
18
26
18
71
JAN-JUL
18
18
27
18
69
OCT-SEP
27
27
35
28
79
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 223, 324, 433, 493, 507, 70, , 74
ESP10, 208, 310, 417, 483, 507, 72, , 76
ESP10, 209, 312, 420, 483, 507, 74, , 78
ESP10, 198, 305, 413, 476, 507, 76, , 80
ESP10, 205, 310, 418, 483, 507, 78, , 82
ESP10, 194, 302, 413, 480, 507, 81, , 85
ESP10, 188, 297, 410, 476, 506, 83, , 87
ESP10, 185, 295, 409, 474, 506, 85, , 89
ESP10, 174, 286, 405, 467, 506, 87, , 91
ESP10, 158, 271, 394, 456, 500, 89, , 93
ESP10, 151, 261, 385, 446, 493, 91, , 95
ESP10, 158, 264, 386, 447, 495, 93, , 97
ESP10, 168, 269, 392, 450, 496, 95, , 99
ESP10, 192, 283, 404, 461, 505, 97, , 101
ESP10, 205, 289, 414, 465, 506, 99, , 103
ESP10, 178, 259, 389, 447, 492, 102, , 106
ESP10, 167, 247, 381, 440, 487, 104, , 108
ESP10, 163, 246, 377, 438, 484, 106, , 110
ESP10, 172, 253, 387, 447, 489, 108, , 112
ESP10, 183, 267, 392, 454, 496, 110, , 114
ESP10, 177, 261, 388, 449, 492, 112, , 116
ESP10, 191, 274, 399, 457, 499, 114, , 118
ESP10, 195, 275, 400, 458, 500, 116, , 120
ESP10, 195, 275, 400, 458, 501, 118, , 122
ESP10, 198, 274, 401, 457, 501, 120, , 124
ESP10, 201, 280, 403, 457, 501, 122, , 126
ESP10, 203, 283, 404, 460, 500, 125, , 129
ESP10, 217, 285, 410, 460, 501, 127, , 131
ESP10, 224, 283, 411, 460, 500, 129, , 133
ESP10, 207, 268, 398, 450, 492, 131, , 135
ESP10, 207, 269, 400, 452, 493, 133, , 137
ESP10, 216, 285, 408, 459, 500, 135, , 139
ESP10, 219, 296, 409, 460, 504, 137, , 141
ESP10, 215, 290, 404, 456, 504, 139, , 143
ESP10, 216, 289, 406, 458, 504, 141, , 145
ESP10, 216, 289, 409, 458, 504, 143, , 147
ESP10, 213, 287, 415, 458, 503, 145, , 149
ESP10, 201, 277, 408, 452, 497, 148, , 152
ESP10, 194, 268, 404, 450, 492, 150, , 154
ESP10, 214, 284, 416, 463, 501, 152, , 156
ESP10, 230, 290, 422, 469, 505, 154, , 158
ESP10, 215, 278, 414, 459, 500, 156, , 160
ESP10, 223, 284, 418, 464, 507, 158, , 162
ESP10, 231, 287, 424, 470, 508, 160, , 164
ESP10, 237, 289, 426, 472, 508, 162, , 166
ESP10, 239, 295, 426, 472, 508, 164, , 168
ESP10, 256, 319, 437, 483, 509, 166, , 170
ESP10, 261, 327, 440, 484, 510, 169, , 173
ESP10, 268, 328, 434, 479, 509, 171, , 175
ESP10, 266, 328, 430, 476, 509, 173, , 177
ESP10, 270, 329, 432, 485, 509, 175, , 179
ESP10, 270, 326, 425, 479, 508, 177, , 181
ESP10, 279, 335, 432, 486, 509, 179, , 183
ESP10, 284, 342, 438, 489, 509, 181, , 185
ESP10, 287, 353, 439, 490, 509, 183, , 187
ESP10, 290, 361, 437, 488, 509, 185, , 189
ESP10, 280, 347, 427, 480, 508, 187, , 191
ESP10, 279, 350, 430, 481, 507, 189, , 193
ESP10, 288, 352, 432, 486, 507, 192, , 196
ESP10, 278, 342, 419, 476, 506, 194, , 198
ESP10, 277, 340, 420, 475, 505, 196, , 200
ESP10, 282, 344, 425, 478, 506, 198, , 202
ESP10, 282, 348, 420, 472, 507, 200, , 204
ESP10, 275, 340, 413, 464, 506, 202, , 206
ESP10, 281, 346, 421, 467, 507, 204, , 208
ESP10, 280, 347, 420, 469, 507, 206, , 210
ESP10, 275, 349, 419, 470, 506, 208, , 212
ESP10, 298, 365, 436, 486, 509, 210, , 214
ESP10, 293, 365, 436, 481, 508, 212, , 216
ESP10, 287, 360, 433, 478, 508, 215, , 219
ESP10, 274, 343, 423, 471, 505, 217, , 221
ESP10, 266, 334, 420, 467, 504, 219, , 223
ESP10, 248, 310, 402, 448, 491, 221, , 225
ESP10, 246, 315, 404, 449, 491, 223, , 227
ESP10, 253, 325, 411, 454, 497, 225, , 229
ESP10, 241, 319, 408, 445, 489, 227, , 231
ESP10, 214, 296, 388, 421, 474, 229, , 233
ESP10, 216, 294, 378, 412, 470, 231, , 235
ESP10, 221, 297, 380, 418, 472, 233, , 237
ESP10, 221, 297, 374, 419, 468, 236, , 240
ESP10, 235, 304, 378, 423, 470, 238, , 242
ESP10, 259, 326, 395, 439, 483, 240, , 244
ESP10, 272, 335, 404, 446, 491, 242, , 246
ESP10, 264, 340, 398, 440, 487, 244, , 248
ESP10, 248, 331, 389, 430, 478, 246, , 250
ESP10, 249, 332, 392, 435, 481, 248, , 252
ESP10, 244, 329, 392, 436, 480, 250, , 254
ESP10, 251, 335, 398, 441, 485, 252, , 256
ESP10, 241, 334, 391, 439, 476, 254, , 258
ESP10, 242, 333, 390, 441, 474, 256, , 260
ESP10, 212, 310, 368, 414, 450, 259, , 263
ESP10, 218, 315, 368, 413, 450, 261, , 265
ESP10, 218, 312, 363, 408, 448, 263, , 267
ESP10, 208, 305, 355, 401, 441, 265, , 269
ESP10, 201, 299, 348, 393, 436, 267, , 271
ESP10, 204, 302, 348, 392, 436, 269, , 273
ESP10, 213, 307, 352, 398, 437, 271, , 275
ESP10, 227, 322, 362, 408, 447, 273, , 277
ESP10, 224, 323, 363, 405, 445, 275, , 279
ESP10, 222, 326, 366, 403, 444, 277, , 281
ESP10, 222, 327, 370, 404, 446, 279, , 283
ESP10, 231, 328, 372, 407, 446, 282, , 286
ESP10, 231, 327, 374, 413, 446, 284, , 288
ESP10, 234, 324, 379, 413, 445, 286, , 290
ESP10, 253, 340, 390, 426, 456, 288, , 292
ESP10, 253, 343, 390, 428, 458, 290, , 294
ESP10, 249, 340, 392, 427, 460, 292, , 296
ESP10, 259, 347, 397, 433, 464, 294, , 298
ESP10, 272, 346, 396, 436, 465, 296, , 300
ESP10, 279, 348, 398, 437, 467, 298, , 302
ESP10, 277, 357, 405, 436, 466, 300, , 304
ESP10, 272, 355, 404, 435, 464, 303, , 307
ESP10, 273, 358, 407, 437, 466, 305, , 309
ESP10, 273, 362, 408, 440, 466, 307, , 311
ESP10, 276, 361, 409, 443, 467, 309, , 313
ESP10, 279, 365, 409, 444, 467, 311, , 315
ESP10, 280, 365, 410, 444, 467, 313, , 317
ESP10, 288, 365, 410, 443, 466, 315, , 319
ESP10, 290, 368, 409, 443, 466, 317, , 321
ESP10, 291, 370, 411, 445, 469, 319, , 323
ESP10, 292, 370, 412, 448, 471, 321, , 325
ESP10, 289, 370, 410, 448, 469, 323, , 327
ESP10, 289, 370, 411, 450, 471, 326, , 330
ESP10, 280, 360, 404, 440, 462, 328, , 332
ESP10, 279, 355, 408, 439, 462, 330, , 334
ESP10, 275, 356, 408, 438, 461, 332, , 336
ESP10, 282, 360, 411, 443, 464, 334, , 338
ESP10, 288, 365, 415, 447, 467, 336, , 340
ESP10, 292, 364, 413, 444, 464, 338, , 342
ESP10, 298, 358, 407, 440, 462, 340, , 344
ESP10, 285, 345, 393, 429, 450, 342, , 346
ESP10, 284, 345, 393, 429, 450, 344, , 348
ESP10, 279, 341, 391, 425, 449, 346, , 350
ESP10, 290, 348, 397, 435, 455, 349, , 353
ESP10, 296, 354, 403, 440, 461, 351, , 355
ESP10, 304, 356, 408, 442, 464, 353, , 357
ESP10, 303, 352, 405, 438, 463, 355, , 359
ESP10, 286, 337, 393, 424, 454, 357, , 361
ESP10, 280, 331, 390, 418, 449, 359, , 363
ESP10, 296, 350, 403, 430, 461, 361, , 365
ESP10, 300, 358, 406, 432, 463, 363, , 367
ESP10, 298, 349, 402, 424, 455, 365, , 369
ESP10, 322, 369, 422, 443, 471, 367, , 371
ESP10, 332, 366, 417, 441, 469, 370, , 374
ESP10, 338, 370, 416, 442, 467, 372, , 376
ESP10, 334, 369, 419, 442, 464, 374, , 378
ESP10, 340, 378, 427, 452, 468, 376, , 380
ESP10, 333, 373, 422, 446, 464, 378, , 382
ESP10, 321, 364, 412, 437, 458, 380, , 384
ESP10, 323, 360, 409, 435, 454, 382, , 386
ESP10, 343, 375, 425, 449, 464, 384, , 388
ESP10, 336, 368, 416, 440, 458, 386, , 390
ESP10, 349, 381, 431, 455, 468, 388, , 392
ESP10, 349, 380, 428, 454, 466, 390, , 394
ESP10, 353, 386, 430, 455, 467, 393, , 397
ESP10, 364, 387, 431, 455, 464, 395, , 399
ESP10, 368, 392, 438, 457, 467, 397, , 401
ESP10, 377, 401, 448, 465, 472, 399, , 403
ESP10, 384, 407, 451, 468, 476, 401, , 405
ESP10, 386, 409, 452, 469, 478, 403, , 407
ESP10, 387, 413, 454, 470, 477, 405, , 409
ESP10, 391, 412, 455, 469, 476, 407, , 411
ESP10, 397, 415, 457, 470, 478, 409, , 413
ESP10, 399, 418, 457, 471, 477, 411, , 415
ESP10, 403, 421, 459, 471, 478, 413, , 417
ESP10, 405, 426, 459, 473, 480, 416, , 420
ESP10, 406, 426, 462, 474, 486, 418, , 422
ESP10, 408, 429, 466, 477, 489, 420, , 424
ESP10, 409, 433, 465, 477, 490, 422, , 426
ESP10, 408, 434, 466, 477, 488, 424, , 428
ESP10, 407, 434, 462, 479, 488, 426, , 430
ESP10, 407, 445, 463, 479, 489, 428, , 432
ESP10, 408, 445, 461, 479, 493, 430, , 434
ESP10, 394, 428, 450, 464, 480, 432, , 436
ESP10, 384, 422, 444, 459, 479, 434, , 438
ESP10, 390, 428, 447, 462, 482, 437, , 441
ESP10, 416, 456, 465, 482, 491, 439, , 443
ESP10, 410, 448, 460, 475, 479, 441, , 445
ESP10, 418, 455, 472, 480, 489, 443, , 447
ESP10, 415, 453, 469, 480, 490, 445, , 449
ESP10, 428, 457, 475, 484, 493, 447, , 451
ESP10, 427, 451, 469, 478, 489, 449, , 453
ESP10, 420, 445, 464, 474, 484, 451, , 455
ESP10, 416, 432, 449, 459, 465, 453, , 457
ESP10, 410, 428, 444, 454, 461, 455, , 459
ESP10, 415, 432, 447, 459, 463, 457, , 461
ESP10, 425, 438, 454, 465, 468, 460, , 464
ESP10, 448, 463, 478, 486, 486, 462, , 466
ESP10, 447, 464, 478, 485, 486, 464, , 468
ESP10, 446, 463, 478, 487, 489, 466, , 470
ESP10, 448, 469, 481, 494, 496, 468, , 472
ESP10, 457, 476, 486, 498, 501, 470, , 474
ESP10, 450, 471, 483, 493, 497, 472, , 476
ESP10, 464, 488, 501, 510, 512, 474, , 478
ESP10, 441, 466, 481, 490, 492, 476, , 480
ESP10, 448, 475, 486, 494, 495, 478, , 482
ESP10, 462, 481, 491, 497, 499, 480, , 484
ESP10, 477, 490, 501, 504, 504, 483, , 487
ESP10, 476, 488, 502, 504, 505, 485, , 489
ESP10, 478, 495, 504, 506, 506, 487, , 491
ESP10, 475, 491, 500, 502, 503, 489, , 493
ESP10, 473, 490, 499, 501, 502, 491, , 495
ESP10, 477, 494, 500, 501, 502, 493, , 497
ESP10, 475, 490, 496, 497, 498, 495, , 499
ESP10, 481, 494, 499, 501, 501, 497, , 501
ESP10, 474, 487, 495, 496, 497, 499, , 503
ESP10, 470, 487, 494, 496, 497, 501, , 505
ESP10, 484, 495, 498, 499, 500, 504, , 508
ESP10, 489, 495, 496, 497, 498, 506, , 510
ESP10, 494, 498, 499, 500, 501, 508, , 512
ESP10, 492, 497, 499, 500, 500, 510, , 514
ESP10, 494, 498, 499, 500, 501, 512, , 516
ESP10, 504, 507, 508, 508, 509, 514, , 518
ESP10, 504, 507, 508, 509, 510, 516, , 520
ESP10, 505, 508, 509, 510, 510, 518, , 522
ESP10, 506, 508, 509, 510, 510, 520, , 524
ESP10, 508, 510, 511, 511, 512, 522, , 526
ESP10, 509, 510, 511, 511, 512, 524, , 528
ESP10, 509, 510, 511, 511, 512, 527, , 531
ESP10, 509, 510, 511, 511, 512, 529, , 533
ESP10, 509, 510, 511, 511, 512, 531, , 535
ESP10, 509, 510, 511, 511, 512, 533, , 537
ESP10, 510, 510, 511, 512, 512, 535, , 539
ESP10, 510, 511, 511, 512, 512, 537, , 541
ESP10, 510, 511, 511, 512, 512, 539, , 543
ESP10, 510, 511, 511, 512, 512, 541, , 545
ESP10, 510, 511, 511, 512, 512, 543, , 547
ESP10, 510, 511, 511, 512, 512, 545, , 549
ESP10, 511, 511, 512, 512, 512, 547, , 551
ESP10, 511, 511, 511, 512, 512, 550, , 554
ESP10, 511, 511, 512, 512, 512, 552, , 556
ESP10, 511, 511, 512, 512, 512, 554, , 558
ESP10, 511, 511, 512, 512, 512, 556, , 560
ESP10, 510, 511, 512, 512, 512, 558, , 562
ESP10, 510, 511, 511, 512, 512, 560, , 564
ESP10, 511, 511, 512, 512, 512, 562, , 566
ESP10, 511, 511, 512, 512, 512, 564, , 568
ESP10, 510, 511, 511, 512, 512, 566, , 570
ESP10, 510, 511, 511, 511, 512, 568, , 572
ESP10, 510, 511, 511, 512, 512, 571, , 575
ESP10, 510, 511, 511, 512, 512, 573, , 577
ESP10, 510, 510, 510, 511, 511, 575, , 579
ESP10, 509, 510, 510, 511, 511, 577, , 581
ESP10, 509, 510, 510, 510, 511, 579, , 583
ESP10, 509, 510, 510, 510, 510, 581, , 585
ESP10, 509, 509, 510, 510, 510, 583, , 587
ESP10, 509, 509, 510, 510, 510, 585, , 589
ESP10, 509, 510, 510, 510, 510, 587, , 591
ESP10, 509, 510, 510, 510, 510, 589, , 593
ESP10, 509, 510, 510, 510, 511, 591, , 595
ESP10, 509, 510, 510, 510, 511, 594, , 598
ESP10, 509, 510, 510, 510, 511, 596, , 600
ESP10, 509, 510, 510, 510, 510, 598, , 602
ESP10, 509, 510, 510, 510, 511, 600, , 604
ESP10, 510, 510, 510, 510, 511, 602, , 606
ESP10, 510, 510, 510, 510, 511, 604, , 608
ESP10, 509, 510, 510, 510, 510, 606, , 610
ESP10, 509, 510, 510, 510, 510, 608, , 612
ESP10, 509, 510, 510, 510, 510, 610, , 614
ESP10, 510, 510, 510, 511, 511, 612, , 616
ESP10, 510, 510, 511, 511, 511, 614, , 618
ESP10, 510, 510, 511, 511, 511, 617, , 621
ESP10, 510, 510, 510, 511, 511, 619, , 623
ESP10, 510, 510, 510, 511, 511, 621, , 625
ESP10, 510, 510, 510, 511, 511, 623, , 627
ESP10, 510, 510, 510, 510, 511, 625, , 629
ESP10, 510, 510, 511, 511, 511, 627, , 631
ESP10, 510, 510, 511, 511, 511, 629, , 633
ESP10, 510, 510, 510, 511, 511, 631, , 635
ESP10, 510, 510, 510, 511, 511, 633, , 637
ESP10, 510, 510, 511, 511, 511, 635, , 639
ESP10, 510, 510, 510, 511, 511, 638, , 642
ESP10, 510, 510, 510, 511, 511, 640, , 644
ESP10, 510, 510, 510, 511, 511, 642, , 646
ESP10, 510, 510, 510, 511, 511, 644, , 648
ESP10, 510, 510, 510, 511, 511, 646, , 650
ESP10, 510, 510, 510, 511, 511, 648, , 652
ESP10, 510, 510, 510, 511, 511, 650, , 654
ESP10, 510, 510, 510, 511, 511, 652, , 656
ESP10, 510, 510, 510, 511, 511, 654, , 658
ESP10, 510, 510, 510, 511, 511, 656, , 660
ESP10, 510, 510, 510, 511, 511, 658, , 662
ESP10, 510, 510, 510, 511, 511, 661, , 665
ESP10, 510, 510, 511, 511, 511, 663, , 667
ESP10, 510, 510, 511, 511, 511, 665, , 669
ESP10, 510, 510, 511, 511, 511, 667, , 671
ESP10, 510, 510, 511, 511, 511, 669, , 673
ESP10, 510, 510, 511, 511, 511, 671, , 675
ESP10, 510, 510, 511, 511, 511, 673, , 677
ESP10, 510, 510, 511, 511, 511, 675, , 679
ESP10, 510, 510, 511, 511, 511, 677, , 681
ESP10, 510, 510, 511, 511, 511, 679, , 683
ESP10, 510, 510, 511, 511, 511, 681, , 685
ESP10, 510, 510, 511, 511, 511, 684, , 688
ESP10, 510, 510, 511, 511, 511, 686, , 690
ESP10, 510, 510, 511, 511, 511, 688, , 692
ESP10, 510, 510, 511, 511, 511, 690, , 694
ESP10, 510, 510, 511, 511, 511, 692, , 696
ESP10, 510, 511, 511, 511, 511, 694, , 698
ESP10, 510, 511, 511, 511, 511, 696, , 700
ESP10, 510, 510, 511, 511, 511, 698, , 702
ESP10, 510, 510, 511, 511, 511, 700, , 704
ESP10, 510, 510, 511, 511, 511, 702, , 706
ESP10, 510, 510, 511, 511, 511, 705, , 709
ESP10, 510, 510, 511, 511, 511, 707, , 711
ESP10, 510, 510, 511, 511, 511, 709, , 713
ESP10, 511, 511, 511, 512, 512, 711, , 715
ESP10, 511, 511, 512, 512, 512, 713, , 717
ESP10, 511, 511, 512, 512, 512, 715, , 719
ESP10, 511, 511, 512, 512, 512, 717, , 721
ESP10, 511, 511, 512, 512, 512, 719, , 723
ESP10, 511, 511, 512, 512, 512, 721, , 725
ESP10, 511, 512, 512, 512, 512, 723, , 727
ESP10, 511, 512, 512, 512, 512, 725, , 729
ESP10, 511, 512, 512, 512, 512, 728, , 732
ESP10, 511, 512, 512, 512, 512, 730, , 734
ESP10, 511, 512, 512, 512, 512, 732, , 736
ESP10, 511, 511, 512, 512, 512, 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/RIRI1W_SQIN.ESPF10.csv
RIRI1W_SQIN.ESPF0.csv|2026-08-15
RIRI1W_SQIN.ESPF10.csv|2026-08-15
RIRI1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
WILLOW CREEK - NEAR RIRIE
(
RIRI1
)
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
7
41
67
137
60
APR-JUL
7
40
69
132
58
APR-AUG
7
41
69
135
59
JAN-SEP
14
47
66
154
71
JAN-JUL
14
46
67
148
69
OCT-SEP
16
50
64
156
79
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/RIRI1W_SQIN.ESPF10.csv
RIRI1W_SQIN.ESPF0.csv|2026-08-15
RIRI1W_SQIN.ESPF10.csv|2026-08-15
RIRI1W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
