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Archive:
Water Year
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COLUMBIA - PRIEST RAPIDS DAM
(
PRWW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-06-23
Issued:
2026-06-23
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
60978
62441
92
64651
68225
APR-JUL
50703
51216
89
51782
57704
JAN-SEP
75064
76526
98
78736
77879
JAN-JUL
64788
65301
97
65867
67358
OCT-SEP
86826
88289
100
90498
87958
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-06-23
Issued:
2026-06-23
Hide Forecast
APR-SEP
61201
62850
92
64732
68225
APR-JUL
50693
51392
89
52175
57704
JAN-SEP
75287
76935
99
78817
77879
JAN-JUL
64778
65477
97
66261
67358
OCT-SEP
87049
88697
101
90580
87958
Reference
ESP with 0 Days QPF
Ensemble:
2026-06-23
Issued:
2026-06-23
Hide Forecast
APR-SEP
61248
62831
92
64705
68225
APR-JUL
50790
51328
89
52550
57704
JAN-SEP
75333
76916
99
78790
77879
JAN-JUL
64876
65413
97
66635
67358
OCT-SEP
87096
88679
101
90552
87958
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 224, 297, 352, 409, 435, 71, , 75
ESP10, 219, 295, 346, 404, 431, 73, , 77
ESP10, 222, 298, 351, 407, 436, 76, , 80
ESP10, 221, 298, 352, 405, 434, 78, , 82
ESP10, 222, 298, 353, 402, 432, 81, , 85
ESP10, 220, 296, 352, 398, 431, 83, , 87
ESP10, 225, 299, 353, 401, 436, 86, , 90
ESP10, 229, 302, 358, 402, 436, 88, , 92
ESP10, 230, 305, 359, 402, 437, 91, , 95
ESP10, 227, 307, 356, 400, 436, 93, , 97
ESP10, 227, 312, 359, 401, 437, 96, , 100
ESP10, 225, 312, 358, 402, 436, 98, , 102
ESP10, 219, 307, 352, 397, 432, 101, , 105
ESP10, 221, 308, 354, 401, 434, 103, , 107
ESP10, 221, 306, 351, 399, 434, 106, , 110
ESP10, 208, 297, 337, 389, 424, 108, , 112
ESP10, 198, 286, 329, 380, 414, 111, , 115
ESP10, 209, 296, 342, 393, 425, 113, , 117
ESP10, 210, 298, 346, 395, 428, 116, , 120
ESP10, 210, 299, 346, 397, 431, 118, , 122
ESP10, 200, 291, 337, 387, 421, 121, , 125
ESP10, 201, 291, 336, 391, 420, 123, , 127
ESP10, 194, 288, 331, 386, 420, 126, , 130
ESP10, 202, 297, 343, 392, 429, 128, , 132
ESP10, 207, 302, 348, 401, 432, 131, , 135
ESP10, 211, 308, 352, 406, 436, 133, , 137
ESP10, 213, 306, 352, 406, 436, 136, , 140
ESP10, 215, 308, 351, 406, 436, 138, , 142
ESP10, 205, 300, 343, 399, 428, 141, , 145
ESP10, 189, 287, 330, 387, 417, 143, , 147
ESP10, 188, 286, 332, 386, 421, 146, , 150
ESP10, 194, 292, 338, 388, 428, 148, , 152
ESP10, 190, 288, 337, 387, 427, 151, , 155
ESP10, 202, 299, 345, 400, 437, 153, , 157
ESP10, 208, 303, 347, 402, 438, 156, , 160
ESP10, 211, 303, 347, 400, 436, 158, , 162
ESP10, 213, 302, 346, 398, 437, 161, , 165
ESP10, 210, 295, 344, 389, 430, 163, , 167
ESP10, 216, 301, 351, 395, 438, 166, , 170
ESP10, 213, 300, 352, 390, 437, 168, , 172
ESP10, 214, 302, 351, 392, 438, 171, , 175
ESP10, 219, 302, 349, 396, 438, 173, , 177
ESP10, 230, 307, 361, 402, 445, 176, , 180
ESP10, 243, 312, 365, 403, 450, 178, , 182
ESP10, 237, 307, 357, 396, 441, 181, , 185
ESP10, 246, 312, 363, 402, 445, 183, , 187
ESP10, 238, 304, 354, 395, 439, 186, , 190
ESP10, 246, 310, 363, 400, 450, 188, , 192
ESP10, 241, 304, 358, 401, 446, 191, , 195
ESP10, 245, 310, 364, 402, 450, 193, , 197
ESP10, 246, 310, 364, 400, 448, 196, , 200
ESP10, 247, 315, 359, 399, 444, 198, , 202
ESP10, 244, 317, 357, 396, 439, 201, , 205
ESP10, 254, 326, 367, 407, 447, 204, , 208
ESP10, 250, 322, 362, 407, 444, 206, , 210
ESP10, 253, 318, 359, 408, 444, 209, , 213
ESP10, 251, 314, 355, 403, 439, 211, , 215
ESP10, 251, 312, 355, 403, 439, 214, , 218
ESP10, 252, 313, 361, 408, 441, 216, , 220
ESP10, 243, 303, 351, 400, 431, 219, , 223
ESP10, 232, 293, 341, 389, 421, 221, , 225
ESP10, 236, 294, 343, 392, 423, 224, , 228
ESP10, 229, 284, 337, 385, 414, 226, , 230
ESP10, 214, 262, 320, 365, 402, 229, , 233
ESP10, 214, 264, 326, 365, 407, 231, , 235
ESP10, 209, 261, 320, 360, 405, 234, , 238
ESP10, 220, 272, 330, 372, 419, 236, , 240
ESP10, 203, 257, 315, 358, 404, 239, , 243
ESP10, 176, 229, 286, 329, 377, 241, , 245
ESP10, 167, 227, 278, 318, 368, 244, , 248
ESP10, 167, 230, 280, 319, 369, 246, , 250
ESP10, 173, 242, 288, 326, 377, 249, , 253
ESP10, 174, 242, 292, 328, 378, 251, , 255
ESP10, 169, 234, 287, 320, 373, 254, , 258
ESP10, 174, 231, 290, 322, 372, 256, , 260
ESP10, 182, 231, 293, 322, 374, 259, , 263
ESP10, 184, 230, 299, 322, 377, 261, , 265
ESP10, 182, 226, 296, 318, 374, 264, , 268
ESP10, 178, 225, 291, 313, 368, 266, , 270
ESP10, 181, 227, 283, 307, 362, 269, , 273
ESP10, 194, 236, 289, 314, 367, 271, , 275
ESP10, 200, 234, 287, 312, 365, 274, , 278
ESP10, 213, 245, 298, 324, 376, 276, , 280
ESP10, 218, 249, 301, 333, 380, 279, , 283
ESP10, 213, 241, 296, 329, 375, 281, , 285
ESP10, 209, 236, 291, 327, 373, 284, , 288
ESP10, 211, 240, 293, 328, 376, 286, , 290
ESP10, 216, 245, 297, 332, 390, 289, , 293
ESP10, 212, 243, 293, 331, 388, 291, , 295
ESP10, 217, 246, 297, 332, 388, 294, , 298
ESP10, 224, 260, 304, 338, 390, 296, , 300
ESP10, 222, 257, 304, 335, 386, 299, , 303
ESP10, 215, 251, 303, 329, 382, 301, , 305
ESP10, 216, 254, 304, 331, 386, 304, , 308
ESP10, 207, 250, 297, 325, 380, 306, , 310
ESP10, 206, 262, 298, 329, 381, 309, , 313
ESP10, 206, 262, 301, 329, 382, 311, , 315
ESP10, 206, 261, 299, 332, 380, 314, , 318
ESP10, 208, 263, 300, 331, 378, 316, , 320
ESP10, 212, 263, 295, 333, 375, 319, , 323
ESP10, 210, 261, 294, 332, 372, 321, , 325
ESP10, 211, 260, 295, 333, 372, 324, , 328
ESP10, 210, 258, 294, 331, 368, 326, , 330
ESP10, 207, 257, 292, 328, 365, 329, , 333
ESP10, 214, 261, 291, 327, 365, 331, , 335
ESP10, 215, 261, 292, 325, 363, 334, , 338
ESP10, 212, 264, 290, 323, 363, 337, , 341
ESP10, 213, 266, 292, 327, 363, 339, , 343
ESP10, 215, 267, 294, 327, 364, 342, , 346
ESP10, 226, 279, 302, 337, 371, 344, , 348
ESP10, 233, 284, 305, 339, 372, 347, , 351
ESP10, 239, 291, 312, 346, 378, 349, , 353
ESP10, 238, 293, 316, 348, 378, 352, , 356
ESP10, 242, 297, 321, 351, 382, 354, , 358
ESP10, 242, 296, 322, 352, 382, 357, , 361
ESP10, 238, 292, 317, 347, 375, 359, , 363
ESP10, 242, 296, 319, 352, 379, 362, , 366
ESP10, 243, 299, 321, 354, 380, 364, , 368
ESP10, 249, 301, 321, 356, 383, 367, , 371
ESP10, 248, 302, 321, 355, 385, 369, , 373
ESP10, 246, 302, 323, 354, 385, 372, , 376
ESP10, 240, 296, 314, 344, 380, 374, , 378
ESP10, 234, 289, 307, 336, 375, 377, , 381
ESP10, 243, 291, 310, 338, 378, 379, , 383
ESP10, 245, 291, 311, 339, 381, 382, , 386
ESP10, 243, 289, 311, 337, 379, 384, , 388
ESP10, 242, 286, 306, 334, 374, 387, , 391
ESP10, 251, 296, 316, 339, 381, 389, , 393
ESP10, 252, 294, 312, 339, 377, 392, , 396
ESP10, 250, 293, 313, 343, 375, 394, , 398
ESP10, 254, 296, 316, 344, 375, 397, , 401
ESP10, 258, 299, 322, 345, 374, 399, , 403
ESP10, 253, 293, 318, 337, 367, 402, , 406
ESP10, 256, 297, 320, 338, 369, 404, , 408
ESP10, 253, 298, 317, 338, 366, 407, , 411
ESP10, 241, 286, 303, 328, 352, 409, , 413
ESP10, 243, 286, 303, 329, 352, 412, , 416
ESP10, 249, 293, 311, 335, 358, 414, , 418
ESP10, 237, 281, 302, 323, 346, 417, , 421
ESP10, 249, 289, 314, 332, 357, 419, , 423
ESP10, 245, 284, 307, 327, 350, 422, , 426
ESP10, 253, 290, 313, 332, 357, 424, , 428
ESP10, 254, 287, 310, 331, 355, 427, , 431
ESP10, 266, 294, 317, 340, 363, 429, , 433
ESP10, 271, 296, 318, 343, 365, 432, , 436
ESP10, 275, 298, 320, 345, 367, 434, , 438
ESP10, 275, 299, 323, 344, 366, 437, , 441
ESP10, 270, 296, 316, 339, 361, 439, , 443
ESP10, 265, 292, 313, 332, 356, 442, , 446
ESP10, 258, 284, 306, 322, 346, 444, , 448
ESP10, 262, 288, 307, 323, 346, 447, , 451
ESP10, 260, 283, 305, 321, 341, 449, , 453
ESP10, 253, 277, 297, 313, 332, 452, , 456
ESP10, 248, 271, 296, 307, 328, 454, , 458
ESP10, 242, 267, 289, 301, 323, 457, , 461
ESP10, 241, 269, 285, 303, 321, 459, , 463
ESP10, 231, 259, 272, 293, 310, 462, , 466
ESP10, 234, 260, 273, 295, 312, 464, , 468
ESP10, 216, 245, 257, 278, 297, 467, , 471
ESP10, 233, 261, 274, 292, 311, 469, , 473
ESP10, 232, 262, 275, 292, 312, 472, , 476
ESP10, 227, 258, 270, 288, 307, 475, , 479
ESP10, 225, 253, 262, 283, 300, 477, , 481
ESP10, 230, 258, 268, 289, 306, 480, , 484
ESP10, 227, 253, 263, 284, 304, 482, , 486
ESP10, 224, 248, 260, 278, 302, 485, , 489
ESP10, 219, 243, 255, 272, 299, 487, , 491
ESP10, 221, 245, 258, 276, 301, 490, , 494
ESP10, 219, 243, 257, 278, 298, 492, , 496
ESP10, 223, 243, 258, 279, 300, 495, , 499
ESP10, 225, 242, 257, 276, 297, 497, , 501
ESP10, 232, 245, 261, 278, 301, 500, , 504
ESP10, 231, 244, 259, 275, 298, 502, , 506
ESP10, 221, 237, 251, 268, 289, 505, , 509
ESP10, 217, 235, 250, 266, 286, 507, , 511
ESP10, 221, 240, 256, 273, 292, 510, , 514
ESP10, 220, 242, 256, 273, 292, 512, , 516
ESP10, 222, 246, 261, 278, 296, 515, , 519
ESP10, 224, 251, 265, 284, 300, 517, , 521
ESP10, 228, 255, 270, 288, 303, 520, , 524
ESP10, 236, 261, 276, 297, 309, 522, , 526
ESP10, 238, 264, 276, 297, 310, 525, , 529
ESP10, 237, 264, 276, 295, 309, 527, , 531
ESP10, 241, 270, 283, 299, 315, 530, , 534
ESP10, 239, 269, 286, 301, 315, 532, , 536
ESP10, 236, 266, 284, 300, 315, 535, , 539
ESP10, 237, 268, 284, 302, 315, 537, , 541
ESP10, 239, 274, 290, 305, 318, 540, , 544
ESP10, 238, 273, 287, 303, 317, 542, , 546
ESP10, 234, 267, 280, 297, 309, 545, , 549
ESP10, 231, 264, 278, 294, 305, 547, , 551
ESP10, 230, 264, 278, 294, 305, 550, , 554
ESP10, 234, 268, 283, 300, 311, 552, , 556
ESP10, 239, 271, 285, 302, 313, 555, , 559
ESP10, 237, 273, 282, 300, 309, 557, , 561
ESP10, 246, 280, 287, 306, 315, 560, , 564
ESP10, 249, 277, 286, 304, 313, 562, , 566
ESP10, 252, 280, 290, 307, 315, 565, , 569
ESP10, 248, 274, 287, 303, 310, 567, , 571
ESP10, 250, 276, 289, 306, 312, 570, , 574
ESP10, 252, 278, 293, 308, 315, 572, , 576
ESP10, 254, 280, 295, 311, 318, 575, , 579
ESP10, 257, 282, 297, 315, 320, 577, , 581
ESP10, 266, 291, 307, 323, 331, 580, , 584
ESP10, 266, 289, 306, 321, 331, 582, , 586
ESP10, 268, 291, 307, 322, 332, 585, , 589
ESP10, 268, 294, 306, 321, 333, 587, , 591
ESP10, 266, 292, 305, 319, 332, 590, , 594
ESP10, 267, 298, 309, 321, 333, 592, , 596
ESP10, 266, 297, 309, 320, 332, 595, , 599
ESP10, 267, 298, 309, 320, 332, 597, , 601
ESP10, 272, 302, 313, 326, 337, 600, , 604
ESP10, 276, 306, 318, 329, 341, 602, , 606
ESP10, 277, 306, 319, 332, 340, 605, , 609
ESP10, 278, 305, 319, 332, 340, 608, , 612
ESP10, 280, 304, 318, 331, 337, 610, , 614
ESP10, 284, 304, 321, 333, 337, 613, , 617
ESP10, 283, 304, 321, 333, 338, 615, , 619
ESP10, 283, 302, 320, 332, 340, 618, , 622
ESP10, 284, 304, 320, 332, 340, 620, , 624
ESP10, 286, 305, 321, 333, 340, 623, , 627
ESP10, 287, 304, 318, 332, 338, 625, , 629
ESP10, 288, 304, 317, 329, 334, 628, , 632
ESP10, 287, 305, 318, 329, 336, 630, , 634
ESP10, 285, 302, 316, 328, 333, 633, , 637
ESP10, 288, 301, 319, 328, 336, 635, , 639
ESP10, 290, 299, 319, 327, 335, 638, , 642
ESP10, 291, 302, 321, 329, 336, 640, , 644
ESP10, 294, 306, 322, 332, 339, 643, , 647
ESP10, 299, 310, 327, 336, 344, 645, , 649
ESP10, 293, 305, 324, 331, 339, 648, , 652
ESP10, 291, 304, 320, 329, 336, 650, , 654
ESP10, 296, 310, 321, 328, 336, 653, , 657
ESP10, 292, 308, 319, 326, 332, 655, , 659
ESP10, 293, 308, 318, 327, 333, 658, , 662
ESP10, 289, 303, 317, 322, 330, 660, , 664
ESP10, 290, 303, 315, 322, 329, 663, , 667
ESP10, 293, 305, 314, 323, 329, 665, , 669
ESP10, 295, 307, 318, 325, 333, 668, , 672
ESP10, 289, 300, 312, 319, 326, 670, , 674
ESP10, 292, 301, 314, 322, 328, 673, , 677
ESP10, 292, 300, 313, 321, 328, 675, , 679
ESP10, 293, 300, 313, 321, 329, 678, , 682
ESP10, 295, 302, 315, 324, 330, 680, , 684
ESP10, 295, 302, 312, 324, 329, 683, , 687
ESP10, 296, 305, 315, 323, 330, 685, , 689
ESP10, 302, 311, 319, 328, 335, 688, , 692
ESP10, 305, 315, 322, 332, 337, 690, , 694
ESP10, 305, 316, 322, 332, 339, 693, , 697
ESP10, 304, 315, 324, 331, 337, 695, , 699
ESP10, 311, 324, 331, 338, 345, 698, , 702
ESP10, 312, 325, 334, 341, 345, 700, , 704
ESP10, 320, 330, 339, 346, 351, 703, , 707
ESP10, 321, 327, 337, 344, 349, 705, , 709
ESP10, 323, 328, 336, 344, 348, 708, , 712
ESP10, 325, 331, 339, 346, 349, 710, , 714
ESP10, 326, 332, 340, 347, 351, 713, , 717
ESP10, 324, 331, 338, 345, 350, 715, , 719
ESP10, 324, 331, 339, 345, 349, 718, , 722
ESP10, 327, 334, 342, 347, 352, 720, , 724
ESP10, 328, 337, 343, 349, 353, 723, , 727
ESP10, 326, 335, 342, 348, 352, 725, , 729
ESP10, 327, 338, 344, 349, 354, 728, , 732
ESP10, 323, 333, 340, 345, 352, 730, , 734
ESP10, 334, 342, 349, 352, 360, 733, , 737
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ESP10
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Data Files
/chpsesp/ensemble/natural/PRWW1N_SQIN.ESPF10.csv
PRWW1N_SQIN.ESPF0.csv|2026-06-23
PRWW1N_SQIN.ESPF10.csv|2026-06-23
PRWW1N_SQIN.ESPFM.csv|2026-06-23
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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