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Archive:
Water Year
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GRANDE RONDE - TROY
(
TRYO3
)
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
649
650
49
652
1331
APR-JUL
595
595
48
595
1251
APR-AUG
622
622
48
623
1293
JAN-SEP
1203
1204
62
1206
1952
JAN-JUL
1149
1149
61
1149
1872
OCT-SEP
1457
1458
67
1461
2170
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
649
650
49
652
1331
APR-JUL
595
595
48
595
1251
APR-AUG
622
622
48
623
1293
JAN-SEP
1203
1204
62
1207
1952
JAN-JUL
1149
1149
61
1149
1872
OCT-SEP
1457
1458
67
1461
2170
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
649
650
49
653
1331
APR-JUL
595
595
48
595
1251
APR-AUG
622
622
48
624
1293
JAN-SEP
1203
1204
62
1207
1952
JAN-JUL
1149
1149
61
1149
1872
OCT-SEP
1457
1459
67
1462
2170
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 202, 296, 337, 407, 456, 70, , 74
ESP10, 200, 295, 335, 406, 455, 72, , 76
ESP10, 199, 295, 336, 406, 454, 74, , 78
ESP10, 200, 295, 338, 407, 455, 76, , 80
ESP10, 202, 296, 339, 407, 455, 78, , 82
ESP10, 200, 294, 338, 406, 454, 81, , 85
ESP10, 201, 294, 338, 406, 454, 83, , 87
ESP10, 205, 295, 340, 407, 455, 85, , 89
ESP10, 206, 295, 339, 407, 454, 87, , 91
ESP10, 204, 294, 337, 405, 454, 89, , 93
ESP10, 202, 293, 335, 404, 453, 91, , 95
ESP10, 206, 294, 339, 407, 454, 93, , 97
ESP10, 207, 294, 338, 406, 455, 95, , 99
ESP10, 207, 294, 336, 406, 455, 97, , 101
ESP10, 203, 293, 334, 403, 454, 99, , 103
ESP10, 198, 288, 332, 399, 452, 102, , 106
ESP10, 194, 286, 330, 396, 451, 104, , 108
ESP10, 194, 286, 332, 396, 451, 106, , 110
ESP10, 196, 290, 334, 397, 453, 108, , 112
ESP10, 201, 291, 336, 399, 455, 110, , 114
ESP10, 198, 286, 334, 396, 454, 112, , 116
ESP10, 200, 290, 337, 399, 456, 114, , 118
ESP10, 197, 289, 335, 395, 455, 116, , 120
ESP10, 203, 295, 342, 402, 458, 118, , 122
ESP10, 201, 298, 341, 401, 458, 120, , 124
ESP10, 199, 294, 340, 399, 458, 122, , 126
ESP10, 199, 293, 339, 402, 458, 125, , 129
ESP10, 199, 294, 340, 408, 458, 127, , 131
ESP10, 197, 293, 340, 406, 457, 129, , 133
ESP10, 194, 287, 333, 402, 456, 131, , 135
ESP10, 194, 288, 335, 406, 456, 133, , 137
ESP10, 194, 288, 334, 407, 456, 135, , 139
ESP10, 196, 291, 336, 409, 456, 137, , 141
ESP10, 197, 292, 337, 410, 457, 139, , 143
ESP10, 202, 295, 340, 412, 458, 141, , 145
ESP10, 206, 294, 340, 414, 458, 143, , 147
ESP10, 208, 295, 339, 415, 463, 145, , 149
ESP10, 206, 292, 336, 414, 463, 148, , 152
ESP10, 214, 289, 333, 414, 462, 150, , 154
ESP10, 212, 287, 336, 410, 461, 152, , 156
ESP10, 221, 298, 348, 416, 465, 154, , 158
ESP10, 226, 303, 350, 419, 468, 156, , 160
ESP10, 223, 299, 347, 418, 466, 158, , 162
ESP10, 235, 309, 357, 422, 473, 160, , 164
ESP10, 236, 316, 357, 421, 473, 162, , 166
ESP10, 230, 311, 356, 419, 469, 164, , 168
ESP10, 240, 316, 362, 422, 473, 166, , 170
ESP10, 245, 320, 367, 423, 473, 169, , 173
ESP10, 250, 319, 366, 422, 472, 171, , 175
ESP10, 245, 311, 361, 418, 468, 173, , 177
ESP10, 238, 304, 354, 417, 462, 175, , 179
ESP10, 231, 293, 350, 415, 456, 177, , 181
ESP10, 240, 299, 358, 419, 461, 179, , 183
ESP10, 249, 305, 365, 422, 466, 181, , 185
ESP10, 240, 293, 356, 418, 459, 183, , 187
ESP10, 250, 304, 370, 424, 468, 185, , 189
ESP10, 239, 289, 358, 416, 460, 187, , 191
ESP10, 253, 298, 364, 422, 465, 189, , 193
ESP10, 256, 306, 366, 424, 466, 192, , 196
ESP10, 245, 293, 357, 414, 457, 194, , 198
ESP10, 236, 282, 348, 399, 450, 196, , 200
ESP10, 251, 294, 359, 409, 458, 198, , 202
ESP10, 246, 286, 358, 399, 453, 200, , 204
ESP10, 234, 274, 347, 388, 448, 202, , 206
ESP10, 249, 286, 361, 401, 458, 204, , 208
ESP10, 244, 286, 359, 398, 455, 206, , 210
ESP10, 254, 303, 369, 403, 465, 208, , 212
ESP10, 265, 310, 377, 410, 475, 210, , 214
ESP10, 272, 310, 377, 410, 477, 212, , 216
ESP10, 265, 303, 369, 405, 471, 215, , 219
ESP10, 259, 296, 363, 404, 464, 217, , 221
ESP10, 255, 294, 357, 401, 462, 219, , 223
ESP10, 244, 284, 347, 395, 457, 221, , 225
ESP10, 252, 293, 355, 403, 463, 223, , 227
ESP10, 252, 296, 357, 404, 465, 225, , 229
ESP10, 250, 292, 358, 402, 463, 227, , 231
ESP10, 249, 291, 358, 401, 461, 229, , 233
ESP10, 259, 299, 363, 407, 463, 231, , 235
ESP10, 278, 312, 376, 416, 473, 233, , 237
ESP10, 279, 313, 374, 417, 472, 236, , 240
ESP10, 283, 319, 374, 416, 471, 238, , 242
ESP10, 290, 336, 379, 418, 476, 240, , 244
ESP10, 287, 333, 376, 415, 475, 242, , 246
ESP10, 287, 331, 374, 413, 475, 244, , 248
ESP10, 275, 321, 363, 405, 467, 246, , 250
ESP10, 275, 323, 363, 405, 467, 248, , 252
ESP10, 283, 331, 370, 412, 473, 250, , 254
ESP10, 284, 332, 370, 413, 472, 252, , 256
ESP10, 290, 335, 374, 414, 473, 254, , 258
ESP10, 288, 339, 381, 413, 473, 256, , 260
ESP10, 288, 343, 390, 414, 473, 259, , 263
ESP10, 286, 341, 391, 419, 470, 261, , 265
ESP10, 280, 337, 385, 415, 466, 263, , 267
ESP10, 275, 334, 382, 415, 464, 265, , 269
ESP10, 277, 335, 384, 417, 469, 267, , 271
ESP10, 278, 336, 384, 423, 472, 269, , 273
ESP10, 267, 325, 371, 414, 462, 271, , 275
ESP10, 275, 330, 377, 421, 469, 273, , 277
ESP10, 285, 334, 382, 427, 473, 275, , 279
ESP10, 294, 337, 388, 430, 476, 277, , 281
ESP10, 307, 346, 395, 433, 480, 279, , 283
ESP10, 307, 349, 398, 433, 481, 282, , 286
ESP10, 308, 350, 398, 436, 481, 284, , 288
ESP10, 315, 355, 395, 433, 480, 286, , 290
ESP10, 320, 356, 393, 432, 480, 288, , 292
ESP10, 319, 354, 390, 431, 479, 290, , 294
ESP10, 315, 350, 384, 427, 478, 292, , 296
ESP10, 320, 354, 388, 429, 479, 294, , 298
ESP10, 319, 355, 392, 431, 477, 296, , 300
ESP10, 323, 361, 409, 436, 481, 298, , 302
ESP10, 325, 361, 408, 435, 480, 300, , 304
ESP10, 327, 357, 407, 433, 478, 303, , 307
ESP10, 328, 361, 406, 434, 482, 305, , 309
ESP10, 332, 368, 408, 439, 487, 307, , 311
ESP10, 334, 368, 408, 441, 488, 309, , 313
ESP10, 340, 369, 409, 444, 489, 311, , 315
ESP10, 342, 371, 410, 446, 490, 313, , 317
ESP10, 341, 369, 411, 445, 488, 315, , 319
ESP10, 343, 372, 415, 447, 488, 317, , 321
ESP10, 349, 375, 421, 450, 490, 319, , 323
ESP10, 358, 379, 427, 455, 493, 321, , 325
ESP10, 358, 379, 426, 456, 492, 323, , 327
ESP10, 350, 374, 420, 451, 489, 326, , 330
ESP10, 351, 374, 421, 454, 488, 328, , 332
ESP10, 350, 376, 422, 455, 488, 330, , 334
ESP10, 350, 374, 419, 454, 486, 332, , 336
ESP10, 347, 375, 413, 452, 481, 334, , 338
ESP10, 343, 378, 408, 450, 482, 336, , 340
ESP10, 339, 372, 405, 445, 475, 338, , 342
ESP10, 344, 378, 409, 450, 482, 340, , 344
ESP10, 343, 372, 405, 449, 478, 342, , 346
ESP10, 348, 378, 414, 454, 484, 344, , 348
ESP10, 339, 368, 405, 446, 477, 346, , 350
ESP10, 341, 374, 406, 449, 478, 349, , 353
ESP10, 334, 368, 400, 444, 480, 351, , 355
ESP10, 327, 360, 395, 439, 477, 353, , 357
ESP10, 324, 357, 398, 438, 474, 355, , 359
ESP10, 326, 358, 400, 438, 476, 357, , 361
ESP10, 314, 347, 389, 429, 466, 359, , 363
ESP10, 327, 358, 404, 440, 479, 361, , 365
ESP10, 324, 359, 403, 438, 478, 363, , 367
ESP10, 334, 371, 411, 450, 485, 365, , 369
ESP10, 336, 380, 416, 455, 486, 367, , 371
ESP10, 335, 383, 419, 457, 486, 370, , 374
ESP10, 341, 386, 423, 461, 486, 372, , 376
ESP10, 346, 387, 426, 464, 488, 374, , 378
ESP10, 346, 389, 427, 468, 488, 376, , 380
ESP10, 332, 376, 414, 454, 476, 378, , 382
ESP10, 328, 373, 413, 451, 473, 380, , 384
ESP10, 326, 370, 413, 449, 470, 382, , 386
ESP10, 338, 378, 424, 457, 476, 384, , 388
ESP10, 341, 378, 428, 458, 476, 386, , 390
ESP10, 336, 373, 423, 454, 469, 388, , 392
ESP10, 312, 350, 406, 436, 449, 390, , 394
ESP10, 316, 353, 408, 439, 453, 393, , 397
ESP10, 312, 348, 405, 433, 452, 395, , 399
ESP10, 315, 352, 407, 438, 459, 397, , 401
ESP10, 310, 348, 401, 433, 454, 399, , 403
ESP10, 317, 353, 403, 440, 458, 401, , 405
ESP10, 326, 359, 410, 448, 467, 403, , 407
ESP10, 318, 347, 399, 439, 457, 405, , 409
ESP10, 305, 330, 384, 427, 446, 407, , 411
ESP10, 327, 353, 403, 446, 466, 409, , 413
ESP10, 334, 361, 409, 452, 471, 411, , 415
ESP10, 330, 360, 406, 447, 468, 413, , 417
ESP10, 336, 365, 407, 448, 467, 416, , 420
ESP10, 333, 368, 405, 445, 468, 418, , 422
ESP10, 340, 379, 417, 455, 475, 420, , 424
ESP10, 343, 384, 425, 460, 482, 422, , 426
ESP10, 346, 389, 433, 469, 488, 424, , 428
ESP10, 353, 385, 428, 466, 487, 426, , 430
ESP10, 360, 387, 433, 468, 487, 428, , 432
ESP10, 359, 386, 434, 467, 484, 430, , 434
ESP10, 338, 371, 417, 451, 468, 432, , 436
ESP10, 348, 376, 420, 453, 472, 434, , 438
ESP10, 357, 381, 433, 457, 478, 437, , 441
ESP10, 351, 373, 426, 455, 472, 439, , 443
ESP10, 351, 374, 432, 456, 471, 441, , 445
ESP10, 355, 382, 440, 458, 473, 443, , 447
ESP10, 360, 391, 446, 462, 480, 445, , 449
ESP10, 361, 393, 447, 464, 485, 447, , 451
ESP10, 364, 401, 449, 466, 488, 449, , 453
ESP10, 359, 399, 446, 465, 486, 451, , 455
ESP10, 368, 414, 459, 477, 495, 453, , 457
ESP10, 371, 410, 457, 474, 493, 455, , 459
ESP10, 377, 410, 458, 475, 493, 457, , 461
ESP10, 376, 411, 455, 472, 490, 460, , 464
ESP10, 377, 418, 456, 475, 492, 462, , 466
ESP10, 356, 397, 438, 458, 476, 464, , 468
ESP10, 345, 391, 432, 449, 469, 466, , 470
ESP10, 351, 397, 434, 461, 474, 468, , 472
ESP10, 350, 397, 436, 464, 471, 470, , 474
ESP10, 350, 393, 436, 462, 470, 472, , 476
ESP10, 351, 394, 435, 459, 469, 474, , 478
ESP10, 354, 393, 431, 459, 466, 476, , 480
ESP10, 364, 400, 446, 466, 474, 478, , 482
ESP10, 366, 402, 448, 464, 472, 480, , 484
ESP10, 361, 398, 446, 461, 469, 483, , 487
ESP10, 363, 401, 446, 458, 462, 485, , 489
ESP10, 363, 409, 446, 460, 466, 487, , 491
ESP10, 355, 414, 437, 451, 456, 489, , 493
ESP10, 350, 401, 432, 441, 448, 491, , 495
ESP10, 341, 396, 425, 435, 441, 493, , 497
ESP10, 369, 421, 448, 458, 461, 495, , 499
ESP10, 368, 426, 447, 458, 460, 497, , 501
ESP10, 374, 428, 450, 459, 462, 499, , 503
ESP10, 373, 428, 453, 459, 460, 501, , 505
ESP10, 375, 430, 454, 460, 461, 504, , 508
ESP10, 382, 433, 456, 460, 462, 506, , 510
ESP10, 384, 433, 457, 461, 462, 508, , 512
ESP10, 388, 432, 458, 461, 462, 510, , 514
ESP10, 399, 436, 460, 463, 463, 512, , 516
ESP10, 405, 437, 461, 463, 464, 514, , 518
ESP10, 407, 439, 462, 465, 465, 516, , 520
ESP10, 408, 441, 464, 467, 468, 518, , 522
ESP10, 411, 446, 466, 468, 468, 520, , 524
ESP10, 415, 455, 467, 469, 469, 522, , 526
ESP10, 419, 460, 467, 469, 469, 524, , 528
ESP10, 414, 447, 460, 464, 464, 527, , 531
ESP10, 418, 447, 460, 463, 464, 529, , 533
ESP10, 424, 449, 462, 464, 464, 531, , 535
ESP10, 426, 447, 458, 460, 461, 533, , 537
ESP10, 435, 453, 461, 463, 463, 535, , 539
ESP10, 431, 446, 457, 459, 459, 537, , 541
ESP10, 429, 443, 457, 459, 459, 539, , 543
ESP10, 431, 448, 457, 459, 460, 541, , 545
ESP10, 438, 452, 457, 459, 460, 543, , 547
ESP10, 437, 453, 458, 459, 460, 545, , 549
ESP10, 438, 453, 458, 460, 460, 547, , 551
ESP10, 439, 454, 458, 460, 460, 550, , 554
ESP10, 439, 455, 460, 461, 461, 552, , 556
ESP10, 439, 457, 460, 461, 462, 554, , 558
ESP10, 441, 458, 461, 461, 462, 556, , 560
ESP10, 445, 459, 461, 462, 462, 558, , 562
ESP10, 441, 457, 460, 461, 461, 560, , 564
ESP10, 438, 456, 458, 459, 459, 562, , 566
ESP10, 448, 454, 456, 457, 457, 564, , 568
ESP10, 450, 454, 455, 456, 456, 566, , 570
ESP10, 451, 452, 454, 455, 455, 568, , 572
ESP10, 451, 452, 454, 454, 454, 571, , 575
ESP10, 451, 452, 454, 454, 455, 573, , 577
ESP10, 450, 451, 452, 453, 453, 575, , 579
ESP10, 450, 451, 453, 453, 453, 577, , 581
ESP10, 450, 451, 453, 453, 453, 579, , 583
ESP10, 450, 452, 453, 453, 453, 581, , 585
ESP10, 450, 452, 453, 453, 453, 583, , 587
ESP10, 450, 452, 453, 453, 453, 585, , 589
ESP10, 450, 452, 453, 453, 453, 587, , 591
ESP10, 450, 452, 453, 453, 453, 589, , 593
ESP10, 451, 452, 453, 453, 454, 591, , 595
ESP10, 451, 452, 453, 453, 454, 594, , 598
ESP10, 451, 452, 453, 453, 454, 596, , 600
ESP10, 451, 452, 453, 453, 453, 598, , 602
ESP10, 451, 452, 453, 453, 453, 600, , 604
ESP10, 451, 452, 453, 453, 454, 602, , 606
ESP10, 451, 453, 453, 453, 454, 604, , 608
ESP10, 451, 453, 453, 453, 454, 606, , 610
ESP10, 451, 453, 453, 453, 454, 608, , 612
ESP10, 452, 453, 453, 454, 454, 610, , 614
ESP10, 451, 453, 453, 454, 454, 612, , 616
ESP10, 452, 453, 453, 454, 454, 614, , 618
ESP10, 452, 453, 453, 454, 454, 617, , 621
ESP10, 452, 453, 453, 454, 454, 619, , 623
ESP10, 452, 452, 453, 453, 454, 621, , 625
ESP10, 452, 453, 453, 453, 454, 623, , 627
ESP10, 452, 453, 453, 453, 454, 625, , 629
ESP10, 452, 453, 453, 453, 454, 627, , 631
ESP10, 452, 452, 453, 453, 454, 629, , 633
ESP10, 452, 453, 453, 453, 454, 631, , 635
ESP10, 452, 453, 453, 453, 454, 633, , 637
ESP10, 452, 452, 453, 453, 454, 635, , 639
ESP10, 452, 452, 453, 453, 454, 638, , 642
ESP10, 452, 452, 453, 453, 454, 640, , 644
ESP10, 452, 453, 453, 454, 454, 642, , 646
ESP10, 452, 453, 453, 454, 454, 644, , 648
ESP10, 455, 456, 456, 456, 456, 646, , 650
ESP10, 455, 456, 456, 456, 456, 648, , 652
ESP10, 455, 456, 456, 456, 456, 650, , 654
ESP10, 455, 456, 456, 456, 456, 652, , 656
ESP10, 455, 456, 456, 456, 456, 654, , 658
ESP10, 455, 456, 456, 456, 457, 656, , 660
ESP10, 455, 456, 456, 457, 457, 658, , 662
ESP10, 456, 457, 457, 457, 458, 661, , 665
ESP10, 456, 457, 457, 457, 458, 663, , 667
ESP10, 456, 457, 457, 457, 458, 665, , 669
ESP10, 456, 457, 457, 458, 458, 667, , 671
ESP10, 457, 457, 457, 458, 458, 669, , 673
ESP10, 456, 457, 457, 458, 458, 671, , 675
ESP10, 456, 457, 457, 458, 458, 673, , 677
ESP10, 457, 457, 457, 458, 458, 675, , 679
ESP10, 457, 457, 458, 458, 458, 677, , 681
ESP10, 457, 457, 458, 458, 458, 679, , 683
ESP10, 457, 457, 458, 458, 458, 681, , 685
ESP10, 457, 457, 458, 458, 458, 684, , 688
ESP10, 457, 458, 458, 458, 458, 686, , 690
ESP10, 457, 458, 458, 458, 458, 688, , 692
ESP10, 457, 458, 458, 458, 458, 690, , 694
ESP10, 457, 458, 458, 458, 458, 692, , 696
ESP10, 457, 458, 458, 458, 458, 694, , 698
ESP10, 458, 458, 458, 458, 459, 696, , 700
ESP10, 458, 458, 458, 458, 459, 698, , 702
ESP10, 458, 458, 458, 459, 459, 700, , 704
ESP10, 457, 458, 458, 458, 458, 702, , 706
ESP10, 457, 458, 458, 458, 458, 705, , 709
ESP10, 458, 458, 458, 458, 458, 707, , 711
ESP10, 458, 458, 458, 458, 458, 709, , 713
ESP10, 457, 458, 458, 458, 458, 711, , 715
ESP10, 458, 458, 458, 458, 458, 713, , 717
ESP10, 458, 458, 458, 458, 458, 715, , 719
ESP10, 458, 458, 458, 458, 458, 717, , 721
ESP10, 458, 458, 458, 458, 459, 719, , 723
ESP10, 458, 458, 458, 458, 458, 721, , 725
ESP10, 458, 458, 458, 458, 458, 723, , 727
ESP10, 458, 458, 458, 458, 458, 725, , 729
ESP10, 458, 458, 458, 458, 458, 728, , 732
ESP10, 458, 458, 458, 458, 458, 730, , 734
ESP10, 458, 458, 458, 458, 458, 732, , 736
ESP10, 458, 458, 458, 458, 458, 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/TRYO3W_SQIN.ESPF10.csv
TRYO3W_SQIN.ESPF0.csv|2026-08-15
TRYO3W_SQIN.ESPF10.csv|2026-08-15
TRYO3W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
GRANDE RONDE - TROY
(
TRYO3
)
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
661
1285
97
1961
1331
APR-JUL
597
1197
96
1833
1251
APR-AUG
629
1244
96
1907
1293
JAN-SEP
1185
1758
90
2607
1952
JAN-JUL
1125
1665
89
2475
1872
OCT-SEP
1304
1927
89
2790
2170
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/TRYO3W_SQIN.ESPF10.csv
TRYO3W_SQIN.ESPF0.csv|2026-08-15
TRYO3W_SQIN.ESPF10.csv|2026-08-15
TRYO3W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
