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Archive:
Water Year
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COLUMBIA - JOHN DAY DAM
(
JDAO3
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-15
Issued:
2026-07-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
79083
79695
84
81015
94749
APR-JUL
67130
67144
82
67169
81538
JAN-SEP
102274
102886
91
104207
113078
JAN-JUL
90322
90335
90
90360
99868
OCT-SEP
120390
121002
94
122323
128097
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-07-15
Issued:
2026-07-15
Hide Forecast
APR-SEP
79188
79815
84
81086
94749
APR-JUL
67099
67158
82
67239
81538
JAN-SEP
102379
103006
91
104278
113078
JAN-JUL
90290
90350
90
90431
99868
OCT-SEP
120495
121122
95
122393
128097
Reference
ESP with 0 Days QPF
Ensemble:
2026-07-15
Issued:
2026-07-15
Hide Forecast
APR-SEP
79023
79870
84
81037
94749
APR-JUL
66963
67084
82
67259
81538
JAN-SEP
102214
103062
91
104229
113078
JAN-JUL
90155
90276
90
90451
99868
OCT-SEP
120330
121178
95
122344
128097
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 252, 320, 359, 414, 452, 70, , 74
ESP10, 246, 318, 356, 410, 451, 73, , 77
ESP10, 244, 319, 352, 411, 449, 75, , 79
ESP10, 243, 316, 353, 411, 449, 77, , 81
ESP10, 243, 317, 352, 411, 448, 80, , 84
ESP10, 239, 312, 349, 410, 445, 82, , 86
ESP10, 241, 314, 351, 413, 446, 84, , 88
ESP10, 242, 317, 354, 415, 448, 87, , 91
ESP10, 240, 318, 356, 416, 448, 89, , 93
ESP10, 236, 315, 350, 412, 445, 91, , 95
ESP10, 233, 316, 350, 409, 445, 94, , 98
ESP10, 234, 319, 352, 411, 446, 96, , 100
ESP10, 229, 318, 345, 411, 445, 98, , 102
ESP10, 229, 318, 347, 414, 449, 100, , 104
ESP10, 229, 317, 344, 411, 446, 103, , 107
ESP10, 214, 304, 333, 401, 434, 105, , 109
ESP10, 205, 296, 326, 393, 426, 107, , 111
ESP10, 214, 304, 335, 402, 434, 110, , 114
ESP10, 217, 307, 336, 405, 436, 112, , 116
ESP10, 219, 309, 342, 406, 437, 114, , 118
ESP10, 207, 301, 332, 394, 428, 117, , 121
ESP10, 207, 305, 336, 403, 429, 119, , 123
ESP10, 201, 306, 331, 399, 425, 121, , 125
ESP10, 209, 319, 341, 407, 435, 124, , 128
ESP10, 213, 327, 350, 416, 440, 126, , 130
ESP10, 215, 328, 350, 419, 442, 128, , 132
ESP10, 215, 328, 350, 420, 441, 131, , 135
ESP10, 227, 329, 355, 422, 441, 133, , 137
ESP10, 221, 322, 350, 415, 437, 135, , 139
ESP10, 203, 310, 337, 405, 427, 138, , 142
ESP10, 202, 310, 338, 404, 426, 140, , 144
ESP10, 208, 313, 342, 408, 430, 142, , 146
ESP10, 218, 314, 342, 405, 433, 145, , 149
ESP10, 227, 324, 352, 414, 442, 147, , 151
ESP10, 233, 326, 353, 417, 443, 149, , 153
ESP10, 233, 326, 353, 416, 441, 151, , 155
ESP10, 234, 324, 353, 414, 442, 154, , 158
ESP10, 229, 318, 346, 407, 436, 156, , 160
ESP10, 236, 325, 351, 412, 441, 158, , 162
ESP10, 238, 322, 356, 410, 446, 161, , 165
ESP10, 245, 329, 358, 410, 452, 163, , 167
ESP10, 250, 338, 360, 412, 455, 165, , 169
ESP10, 260, 345, 367, 416, 460, 168, , 172
ESP10, 270, 346, 372, 426, 467, 170, , 174
ESP10, 266, 339, 369, 423, 463, 172, , 176
ESP10, 273, 342, 373, 426, 468, 175, , 179
ESP10, 269, 336, 370, 424, 468, 177, , 181
ESP10, 281, 342, 376, 429, 474, 179, , 183
ESP10, 285, 340, 373, 424, 475, 182, , 186
ESP10, 285, 343, 375, 426, 476, 184, , 188
ESP10, 282, 344, 373, 424, 473, 186, , 190
ESP10, 277, 341, 368, 419, 470, 189, , 193
ESP10, 276, 346, 370, 418, 468, 191, , 195
ESP10, 287, 356, 382, 428, 475, 193, , 197
ESP10, 284, 354, 380, 431, 470, 196, , 200
ESP10, 283, 353, 381, 431, 470, 198, , 202
ESP10, 276, 346, 377, 426, 465, 200, , 204
ESP10, 274, 344, 378, 431, 464, 202, , 206
ESP10, 277, 344, 381, 433, 464, 205, , 209
ESP10, 265, 328, 372, 420, 452, 207, , 211
ESP10, 254, 315, 364, 410, 443, 209, , 213
ESP10, 260, 321, 370, 415, 449, 212, , 216
ESP10, 247, 314, 362, 404, 441, 214, , 218
ESP10, 229, 293, 340, 385, 425, 216, , 220
ESP10, 231, 298, 341, 391, 430, 219, , 223
ESP10, 223, 295, 337, 385, 423, 221, , 225
ESP10, 230, 302, 347, 398, 430, 223, , 227
ESP10, 225, 295, 340, 395, 426, 226, , 230
ESP10, 211, 274, 321, 377, 413, 228, , 232
ESP10, 204, 270, 315, 368, 404, 230, , 234
ESP10, 202, 268, 315, 369, 407, 233, , 237
ESP10, 206, 266, 315, 372, 412, 235, , 239
ESP10, 205, 266, 315, 372, 411, 237, , 241
ESP10, 202, 261, 310, 366, 409, 240, , 244
ESP10, 206, 261, 312, 365, 411, 242, , 246
ESP10, 208, 259, 312, 363, 410, 244, , 248
ESP10, 206, 259, 314, 360, 409, 247, , 251
ESP10, 214, 263, 317, 360, 412, 249, , 253
ESP10, 216, 270, 320, 359, 414, 251, , 255
ESP10, 222, 272, 316, 355, 410, 253, , 257
ESP10, 232, 275, 320, 362, 413, 256, , 260
ESP10, 240, 276, 324, 366, 411, 258, , 262
ESP10, 253, 283, 332, 376, 419, 260, , 264
ESP10, 256, 283, 335, 381, 421, 263, , 267
ESP10, 248, 273, 326, 376, 414, 265, , 269
ESP10, 243, 268, 322, 375, 415, 267, , 271
ESP10, 244, 274, 324, 380, 418, 270, , 274
ESP10, 246, 281, 332, 384, 422, 272, , 276
ESP10, 244, 281, 331, 380, 422, 274, , 278
ESP10, 251, 284, 330, 380, 420, 277, , 281
ESP10, 259, 287, 338, 378, 422, 279, , 283
ESP10, 259, 290, 336, 376, 421, 281, , 285
ESP10, 253, 286, 331, 371, 416, 284, , 288
ESP10, 252, 295, 330, 377, 415, 286, , 290
ESP10, 244, 290, 326, 373, 410, 288, , 292
ESP10, 241, 291, 328, 374, 408, 291, , 295
ESP10, 238, 290, 325, 375, 408, 293, , 297
ESP10, 238, 292, 326, 375, 407, 295, , 299
ESP10, 243, 289, 326, 374, 406, 298, , 302
ESP10, 250, 290, 329, 373, 406, 300, , 304
ESP10, 247, 291, 331, 372, 405, 302, , 306
ESP10, 247, 293, 329, 372, 408, 304, , 308
ESP10, 245, 294, 328, 370, 407, 307, , 311
ESP10, 248, 297, 324, 368, 408, 309, , 313
ESP10, 253, 295, 328, 366, 411, 311, , 315
ESP10, 252, 300, 332, 367, 411, 314, , 318
ESP10, 250, 295, 335, 365, 408, 316, , 320
ESP10, 255, 301, 337, 368, 409, 318, , 322
ESP10, 256, 307, 337, 370, 408, 321, , 325
ESP10, 262, 320, 343, 378, 413, 323, , 327
ESP10, 269, 320, 344, 378, 413, 325, , 329
ESP10, 277, 323, 348, 382, 418, 328, , 332
ESP10, 283, 325, 350, 384, 419, 330, , 334
ESP10, 289, 331, 356, 389, 423, 332, , 336
ESP10, 289, 331, 359, 388, 424, 335, , 339
ESP10, 281, 330, 356, 386, 420, 337, , 341
ESP10, 287, 332, 360, 387, 423, 339, , 343
ESP10, 291, 333, 362, 388, 427, 342, , 346
ESP10, 292, 340, 362, 389, 427, 344, , 348
ESP10, 292, 344, 364, 389, 427, 346, , 350
ESP10, 295, 341, 361, 389, 424, 349, , 353
ESP10, 297, 340, 358, 386, 421, 351, , 355
ESP10, 290, 333, 353, 380, 418, 353, , 357
ESP10, 294, 333, 353, 381, 422, 355, , 359
ESP10, 298, 335, 352, 381, 425, 358, , 362
ESP10, 300, 339, 354, 382, 425, 360, , 364
ESP10, 296, 335, 352, 381, 421, 362, , 366
ESP10, 302, 340, 357, 387, 425, 365, , 369
ESP10, 302, 340, 354, 387, 423, 367, , 371
ESP10, 304, 339, 356, 385, 421, 369, , 373
ESP10, 303, 340, 356, 385, 418, 372, , 376
ESP10, 308, 341, 356, 386, 418, 374, , 378
ESP10, 307, 337, 351, 381, 412, 376, , 380
ESP10, 312, 341, 354, 385, 414, 379, , 383
ESP10, 308, 345, 355, 385, 411, 381, , 385
ESP10, 302, 334, 346, 376, 401, 383, , 387
ESP10, 300, 330, 345, 374, 401, 386, , 390
ESP10, 304, 336, 350, 378, 407, 388, , 392
ESP10, 290, 324, 339, 366, 396, 390, , 394
ESP10, 303, 336, 352, 378, 409, 393, , 397
ESP10, 296, 328, 346, 372, 404, 395, , 399
ESP10, 302, 334, 355, 379, 410, 397, , 401
ESP10, 307, 336, 355, 382, 409, 400, , 404
ESP10, 313, 340, 359, 387, 414, 402, , 406
ESP10, 316, 340, 361, 387, 416, 404, , 408
ESP10, 320, 344, 362, 392, 418, 406, , 410
ESP10, 324, 344, 364, 393, 417, 409, , 413
ESP10, 318, 338, 359, 384, 409, 411, , 415
ESP10, 315, 332, 358, 380, 404, 413, , 417
ESP10, 304, 326, 350, 371, 395, 416, , 420
ESP10, 307, 332, 356, 374, 397, 418, , 422
ESP10, 303, 329, 354, 371, 393, 420, , 424
ESP10, 294, 321, 351, 366, 385, 423, , 427
ESP10, 285, 315, 347, 361, 378, 425, , 429
ESP10, 283, 313, 345, 361, 372, 427, , 431
ESP10, 280, 313, 341, 358, 372, 430, , 434
ESP10, 272, 306, 333, 350, 364, 432, , 436
ESP10, 274, 309, 332, 350, 365, 434, , 438
ESP10, 266, 299, 322, 336, 353, 437, , 441
ESP10, 280, 312, 335, 348, 367, 439, , 443
ESP10, 280, 312, 332, 346, 365, 441, , 445
ESP10, 273, 306, 324, 341, 358, 444, , 448
ESP10, 276, 306, 323, 344, 358, 446, , 450
ESP10, 281, 311, 328, 350, 365, 448, , 452
ESP10, 280, 312, 329, 348, 363, 451, , 455
ESP10, 277, 310, 325, 345, 360, 453, , 457
ESP10, 271, 306, 320, 341, 355, 455, , 459
ESP10, 274, 307, 323, 346, 358, 457, , 461
ESP10, 276, 308, 322, 346, 361, 460, , 464
ESP10, 282, 310, 329, 348, 362, 462, , 466
ESP10, 284, 307, 327, 346, 360, 464, , 468
ESP10, 291, 309, 329, 347, 364, 467, , 471
ESP10, 294, 307, 328, 344, 363, 469, , 473
ESP10, 281, 296, 317, 334, 354, 471, , 475
ESP10, 276, 293, 313, 328, 346, 474, , 478
ESP10, 282, 300, 317, 335, 351, 476, , 480
ESP10, 278, 296, 316, 336, 348, 478, , 482
ESP10, 279, 298, 322, 341, 350, 481, , 485
ESP10, 282, 304, 327, 345, 357, 483, , 487
ESP10, 284, 306, 330, 348, 364, 485, , 489
ESP10, 291, 312, 339, 354, 368, 488, , 492
ESP10, 294, 314, 342, 355, 370, 490, , 494
ESP10, 291, 312, 339, 350, 367, 492, , 496
ESP10, 297, 321, 345, 357, 373, 495, , 499
ESP10, 295, 320, 344, 359, 371, 497, , 501
ESP10, 292, 318, 344, 360, 369, 499, , 503
ESP10, 295, 319, 344, 361, 369, 502, , 506
ESP10, 297, 325, 349, 365, 372, 504, , 508
ESP10, 295, 319, 344, 359, 367, 506, , 510
ESP10, 290, 313, 338, 351, 360, 508, , 512
ESP10, 286, 310, 333, 347, 355, 511, , 515
ESP10, 286, 311, 333, 347, 354, 513, , 517
ESP10, 285, 312, 333, 348, 355, 515, , 519
ESP10, 290, 315, 337, 352, 359, 518, , 522
ESP10, 288, 318, 334, 348, 354, 520, , 524
ESP10, 302, 327, 343, 357, 362, 522, , 526
ESP10, 299, 323, 340, 354, 360, 525, , 529
ESP10, 307, 329, 343, 358, 365, 527, , 531
ESP10, 308, 324, 341, 355, 361, 529, , 533
ESP10, 309, 324, 342, 355, 361, 532, , 536
ESP10, 312, 326, 342, 357, 362, 534, , 538
ESP10, 313, 327, 346, 359, 364, 536, , 540
ESP10, 315, 332, 351, 362, 367, 539, , 543
ESP10, 324, 345, 360, 371, 380, 541, , 545
ESP10, 323, 346, 359, 370, 381, 543, , 547
ESP10, 325, 348, 360, 372, 382, 546, , 550
ESP10, 324, 347, 359, 369, 381, 548, , 552
ESP10, 322, 349, 359, 368, 380, 550, , 554
ESP10, 325, 351, 361, 370, 381, 553, , 557
ESP10, 326, 350, 360, 369, 380, 555, , 559
ESP10, 327, 350, 361, 371, 380, 557, , 561
ESP10, 332, 354, 366, 376, 384, 559, , 563
ESP10, 335, 357, 368, 378, 390, 562, , 566
ESP10, 335, 358, 370, 379, 391, 564, , 568
ESP10, 336, 358, 370, 380, 390, 566, , 570
ESP10, 336, 357, 370, 381, 388, 569, , 573
ESP10, 337, 358, 370, 381, 388, 571, , 575
ESP10, 337, 358, 371, 381, 387, 573, , 577
ESP10, 335, 356, 369, 381, 388, 576, , 580
ESP10, 337, 360, 368, 381, 388, 578, , 582
ESP10, 341, 362, 370, 383, 389, 580, , 584
ESP10, 340, 359, 368, 381, 386, 583, , 587
ESP10, 344, 360, 368, 380, 386, 585, , 589
ESP10, 345, 359, 371, 381, 387, 587, , 591
ESP10, 342, 356, 370, 380, 385, 590, , 594
ESP10, 348, 357, 371, 381, 387, 592, , 596
ESP10, 350, 355, 370, 380, 386, 594, , 598
ESP10, 351, 358, 374, 381, 387, 597, , 601
ESP10, 353, 361, 375, 383, 388, 599, , 603
ESP10, 357, 367, 379, 387, 391, 601, , 605
ESP10, 352, 363, 375, 382, 387, 604, , 608
ESP10, 351, 362, 373, 381, 385, 606, , 610
ESP10, 352, 367, 375, 380, 386, 608, , 612
ESP10, 350, 364, 373, 377, 383, 610, , 614
ESP10, 350, 364, 374, 379, 383, 613, , 617
ESP10, 349, 361, 371, 375, 382, 615, , 619
ESP10, 350, 360, 370, 375, 381, 617, , 621
ESP10, 350, 363, 370, 375, 380, 620, , 624
ESP10, 355, 364, 372, 377, 383, 622, , 626
ESP10, 351, 359, 368, 373, 378, 624, , 628
ESP10, 353, 361, 370, 375, 381, 627, , 631
ESP10, 353, 360, 369, 376, 380, 629, , 633
ESP10, 354, 361, 371, 375, 381, 631, , 635
ESP10, 356, 362, 371, 377, 382, 634, , 638
ESP10, 356, 362, 369, 377, 382, 636, , 640
ESP10, 357, 362, 371, 376, 382, 638, , 642
ESP10, 360, 366, 374, 380, 385, 641, , 645
ESP10, 363, 370, 375, 382, 386, 643, , 647
ESP10, 364, 370, 377, 383, 387, 645, , 649
ESP10, 362, 371, 376, 382, 386, 648, , 652
ESP10, 368, 377, 382, 388, 392, 650, , 654
ESP10, 368, 377, 383, 389, 391, 652, , 656
ESP10, 374, 381, 388, 393, 396, 655, , 659
ESP10, 375, 380, 387, 391, 394, 657, , 661
ESP10, 376, 380, 386, 391, 394, 659, , 663
ESP10, 377, 382, 387, 392, 395, 661, , 665
ESP10, 378, 383, 388, 393, 396, 664, , 668
ESP10, 377, 382, 387, 392, 395, 666, , 670
ESP10, 376, 382, 387, 391, 395, 668, , 672
ESP10, 378, 384, 389, 393, 397, 671, , 675
ESP10, 379, 386, 390, 394, 397, 673, , 677
ESP10, 377, 385, 389, 394, 397, 675, , 679
ESP10, 378, 386, 390, 394, 398, 678, , 682
ESP10, 375, 383, 388, 392, 396, 680, , 684
ESP10, 383, 389, 394, 397, 401, 682, , 686
ESP10, 383, 389, 393, 397, 400, 685, , 689
ESP10, 383, 389, 393, 396, 400, 687, , 691
ESP10, 380, 385, 390, 393, 396, 689, , 693
ESP10, 380, 385, 389, 392, 396, 692, , 696
ESP10, 376, 382, 386, 389, 392, 694, , 698
ESP10, 378, 385, 389, 391, 395, 696, , 700
ESP10, 382, 387, 391, 395, 396, 699, , 703
ESP10, 382, 385, 390, 393, 395, 701, , 705
ESP10, 382, 385, 390, 393, 395, 703, , 707
ESP10, 382, 385, 389, 393, 394, 706, , 710
ESP10, 383, 387, 391, 394, 396, 708, , 712
ESP10, 388, 390, 393, 396, 398, 710, , 714
ESP10, 388, 390, 393, 396, 398, 712, , 716
ESP10, 388, 390, 393, 396, 397, 715, , 719
ESP10, 388, 390, 394, 396, 397, 717, , 721
ESP10, 388, 391, 394, 396, 397, 719, , 723
ESP10, 388, 392, 394, 396, 397, 722, , 726
ESP10, 388, 392, 393, 396, 397, 724, , 728
ESP10, 388, 391, 393, 395, 396, 726, , 730
ESP10, 387, 391, 393, 395, 396, 729, , 733
ESP10, 388, 392, 394, 396, 397, 731, , 735
ESP10, 388, 392, 394, 396, 397, 733, , 737
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
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Overlay
ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/JDAO3N_SQIN.ESPF10.csv
JDAO3N_SQIN.ESPF0.csv|2026-07-15
JDAO3N_SQIN.ESPF10.csv|2026-07-15
JDAO3N_SQIN.ESPFM.csv|2026-07-15
APR-SEP
COLUMBIA - JOHN DAY DAM
(
JDAO3
)
Forecasts for Water Year
2027
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-07-15
Issued:
2026-07-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
68015
89535
94
113204
94749
APR-JUL
56238
74768
92
92811
81538
JAN-SEP
80604
106398
94
134290
113078
JAN-JUL
68766
90318
90
115699
99868
OCT-SEP
92624
119303
93
152113
128097
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/natural/JDAO3N_SQIN.ESPF10.csv
JDAO3N_SQIN.ESPF0.csv|2026-07-15
JDAO3N_SQIN.ESPF10.csv|2026-07-15
JDAO3N_SQIN.ESPFM.csv|2026-07-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
