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Archive:
Water Year
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COLUMBIA - PRIEST RAPIDS DAM
(
PRWW1
)
Forecasts for Water Year
2025
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2025-07-17
Issued:
2025-07-17
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
52326
52826
77
53893
68225
APR-JUL
43543
43554
75
43562
57704
JAN-SEP
59894
60394
78
61461
77879
JAN-JUL
51111
51122
76
51130
67358
OCT-SEP
69254
69754
79
70820
87958
Experimental
HEFS with 15 days EQPF
Ensemble:
2025-07-17
Issued:
2025-07-17
Hide Forecast
APR-SEP
52010
52812
77
53972
68225
APR-JUL
43429
43530
75
43809
57704
JAN-SEP
59578
60380
78
61540
77879
JAN-JUL
50997
51098
76
51377
67358
OCT-SEP
68937
69739
79
70899
87958
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-17
Issued:
2025-07-17
Hide Forecast
APR-SEP
51966
52553
77
53441
68225
APR-JUL
43363
43454
75
43636
57704
JAN-SEP
59534
60121
77
61009
77879
JAN-JUL
50931
51022
76
51204
67358
OCT-SEP
68894
69480
79
70368
87958
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 192, 272, 323, 378, 416, 70, , 74
ESP10, 195, 274, 323, 384, 418, 73, , 77
ESP10, 197, 276, 325, 385, 421, 75, , 79
ESP10, 197, 278, 329, 384, 420, 77, , 81
ESP10, 200, 278, 334, 383, 419, 80, , 84
ESP10, 200, 278, 338, 382, 422, 82, , 86
ESP10, 205, 280, 337, 385, 424, 84, , 88
ESP10, 206, 282, 339, 385, 424, 86, , 90
ESP10, 199, 278, 332, 379, 417, 89, , 93
ESP10, 197, 280, 328, 377, 417, 91, , 95
ESP10, 193, 284, 325, 374, 413, 93, , 97
ESP10, 190, 281, 322, 373, 412, 96, , 100
ESP10, 196, 287, 328, 378, 419, 98, , 102
ESP10, 198, 292, 331, 381, 422, 100, , 104
ESP10, 198, 289, 327, 381, 421, 103, , 107
ESP10, 190, 286, 320, 377, 417, 105, , 109
ESP10, 187, 281, 320, 376, 413, 107, , 111
ESP10, 182, 273, 317, 369, 407, 109, , 113
ESP10, 180, 270, 323, 372, 408, 112, , 116
ESP10, 176, 269, 318, 370, 408, 114, , 118
ESP10, 178, 270, 318, 371, 408, 116, , 120
ESP10, 187, 279, 325, 384, 415, 119, , 123
ESP10, 181, 278, 322, 380, 414, 121, , 125
ESP10, 186, 284, 330, 383, 419, 123, , 127
ESP10, 188, 286, 331, 387, 420, 126, , 130
ESP10, 191, 291, 337, 394, 424, 128, , 132
ESP10, 199, 295, 343, 397, 430, 130, , 134
ESP10, 206, 299, 347, 403, 436, 132, , 136
ESP10, 204, 300, 346, 401, 434, 135, , 139
ESP10, 199, 298, 343, 399, 432, 137, , 141
ESP10, 183, 283, 329, 385, 423, 139, , 143
ESP10, 180, 278, 328, 380, 423, 142, , 146
ESP10, 180, 279, 331, 378, 427, 144, , 148
ESP10, 173, 273, 322, 369, 421, 146, , 150
ESP10, 168, 268, 316, 361, 411, 149, , 153
ESP10, 171, 267, 313, 360, 408, 151, , 155
ESP10, 179, 272, 316, 364, 413, 153, , 157
ESP10, 171, 261, 308, 355, 403, 155, , 159
ESP10, 169, 258, 308, 353, 403, 158, , 162
ESP10, 178, 267, 320, 362, 414, 160, , 164
ESP10, 193, 284, 333, 376, 428, 162, , 166
ESP10, 201, 286, 334, 386, 430, 165, , 169
ESP10, 194, 275, 329, 375, 421, 167, , 171
ESP10, 206, 278, 333, 375, 425, 169, , 173
ESP10, 169, 245, 296, 340, 389, 172, , 176
ESP10, 162, 232, 288, 330, 381, 174, , 178
ESP10, 171, 241, 296, 340, 390, 176, , 180
ESP10, 187, 255, 308, 351, 406, 179, , 183
ESP10, 192, 260, 312, 363, 412, 181, , 185
ESP10, 201, 271, 326, 368, 419, 183, , 187
ESP10, 198, 268, 322, 362, 415, 185, , 189
ESP10, 206, 278, 325, 367, 418, 188, , 192
ESP10, 213, 292, 334, 375, 422, 190, , 194
ESP10, 209, 288, 329, 376, 418, 192, , 196
ESP10, 205, 285, 321, 374, 413, 195, , 199
ESP10, 215, 287, 323, 379, 420, 197, , 201
ESP10, 210, 280, 320, 371, 412, 199, , 203
ESP10, 213, 280, 320, 374, 414, 202, , 206
ESP10, 216, 282, 326, 382, 418, 204, , 208
ESP10, 227, 291, 339, 391, 423, 206, , 210
ESP10, 228, 292, 340, 394, 424, 208, , 212
ESP10, 226, 287, 336, 392, 420, 211, , 215
ESP10, 227, 285, 337, 392, 419, 213, , 217
ESP10, 224, 272, 333, 384, 417, 215, , 219
ESP10, 227, 277, 343, 387, 427, 218, , 222
ESP10, 232, 283, 347, 389, 432, 220, , 224
ESP10, 224, 274, 339, 382, 429, 222, , 226
ESP10, 232, 284, 349, 389, 437, 225, , 229
ESP10, 232, 281, 346, 384, 433, 227, , 231
ESP10, 230, 289, 340, 378, 429, 229, , 233
ESP10, 246, 307, 358, 393, 443, 231, , 235
ESP10, 246, 313, 359, 394, 445, 234, , 238
ESP10, 241, 308, 356, 391, 440, 236, , 240
ESP10, 232, 296, 348, 383, 430, 238, , 242
ESP10, 221, 278, 338, 368, 416, 241, , 245
ESP10, 218, 268, 331, 359, 408, 243, , 247
ESP10, 224, 269, 337, 362, 415, 245, , 249
ESP10, 229, 272, 341, 366, 418, 248, , 252
ESP10, 229, 278, 341, 367, 417, 250, , 254
ESP10, 228, 275, 329, 357, 407, 252, , 256
ESP10, 225, 268, 319, 348, 397, 254, , 258
ESP10, 239, 272, 326, 353, 402, 257, , 261
ESP10, 236, 268, 322, 349, 399, 259, , 263
ESP10, 249, 280, 332, 363, 409, 261, , 265
ESP10, 242, 271, 326, 358, 403, 264, , 268
ESP10, 252, 279, 334, 368, 413, 266, , 270
ESP10, 246, 275, 326, 363, 408, 268, , 272
ESP10, 250, 281, 329, 364, 421, 271, , 275
ESP10, 249, 281, 328, 368, 422, 273, , 277
ESP10, 259, 287, 336, 374, 426, 275, , 279
ESP10, 262, 298, 343, 377, 425, 278, , 282
ESP10, 253, 290, 337, 369, 416, 280, , 284
ESP10, 257, 295, 345, 374, 422, 282, , 286
ESP10, 262, 303, 351, 380, 428, 284, , 288
ESP10, 261, 318, 354, 385, 429, 289, , 293
ESP10, 262, 319, 357, 385, 431, 291, , 295
ESP10, 265, 322, 359, 390, 432, 294, , 298
ESP10, 272, 326, 362, 392, 434, 296, , 300
ESP10, 281, 329, 364, 397, 435, 298, , 302
ESP10, 284, 330, 366, 402, 436, 301, , 305
ESP10, 285, 330, 369, 405, 439, 303, , 307
ESP10, 287, 330, 370, 405, 438, 305, , 309
ESP10, 285, 333, 370, 403, 436, 307, , 311
ESP10, 293, 336, 370, 404, 440, 310, , 314
ESP10, 296, 341, 372, 404, 440, 312, , 316
ESP10, 300, 352, 375, 408, 443, 314, , 318
ESP10, 300, 353, 377, 409, 444, 317, , 321
ESP10, 303, 356, 379, 412, 445, 319, , 323
ESP10, 311, 363, 384, 419, 450, 321, , 325
ESP10, 316, 365, 385, 420, 448, 324, , 328
ESP10, 319, 368, 389, 423, 451, 326, , 330
ESP10, 315, 369, 391, 421, 449, 328, , 332
ESP10, 312, 365, 389, 418, 446, 330, , 334
ESP10, 313, 365, 393, 420, 447, 333, , 337
ESP10, 318, 371, 395, 424, 448, 335, , 339
ESP10, 313, 366, 390, 421, 444, 337, , 341
ESP10, 308, 363, 386, 417, 442, 340, , 344
ESP10, 315, 367, 387, 419, 448, 342, , 346
ESP10, 315, 368, 388, 420, 451, 344, , 348
ESP10, 315, 370, 392, 420, 452, 347, , 351
ESP10, 321, 377, 396, 423, 461, 349, , 353
ESP10, 321, 378, 395, 422, 462, 351, , 355
ESP10, 326, 376, 394, 419, 461, 353, , 357
ESP10, 327, 375, 393, 418, 462, 356, , 360
ESP10, 325, 375, 394, 416, 460, 358, , 362
ESP10, 329, 375, 395, 418, 461, 360, , 364
ESP10, 330, 377, 393, 416, 459, 363, , 367
ESP10, 323, 366, 383, 409, 449, 365, , 369
ESP10, 331, 376, 394, 421, 455, 367, , 371
ESP10, 333, 378, 396, 419, 452, 370, , 374
ESP10, 340, 381, 401, 423, 455, 372, , 376
ESP10, 347, 386, 409, 427, 459, 374, , 378
ESP10, 347, 387, 408, 425, 457, 377, , 381
ESP10, 347, 391, 409, 428, 457, 379, , 383
ESP10, 335, 380, 396, 416, 444, 381, , 385
ESP10, 328, 373, 388, 409, 437, 383, , 387
ESP10, 325, 369, 387, 405, 433, 386, , 390
ESP10, 327, 371, 392, 407, 436, 388, , 392
ESP10, 329, 370, 395, 410, 437, 390, , 394
ESP10, 332, 372, 395, 410, 438, 393, , 397
ESP10, 332, 372, 393, 412, 436, 395, , 399
ESP10, 329, 364, 387, 407, 432, 397, , 401
ESP10, 326, 355, 380, 404, 426, 400, , 404
ESP10, 337, 363, 386, 412, 434, 402, , 406
ESP10, 345, 371, 394, 418, 442, 404, , 408
ESP10, 348, 377, 398, 420, 444, 406, , 410
ESP10, 350, 379, 399, 420, 444, 409, , 413
ESP10, 347, 378, 398, 417, 440, 411, , 415
ESP10, 345, 373, 393, 410, 435, 413, , 417
ESP10, 345, 372, 391, 404, 430, 416, , 420
ESP10, 348, 374, 393, 409, 431, 418, , 422
ESP10, 349, 376, 394, 408, 431, 420, , 424
ESP10, 355, 381, 402, 411, 437, 423, , 427
ESP10, 346, 378, 394, 406, 430, 425, , 429
ESP10, 341, 371, 386, 403, 423, 427, , 431
ESP10, 331, 361, 374, 392, 413, 429, , 433
ESP10, 338, 366, 379, 398, 419, 432, , 436
ESP10, 342, 370, 384, 401, 421, 434, , 438
ESP10, 340, 371, 382, 398, 418, 436, , 440
ESP10, 335, 368, 379, 396, 414, 439, , 443
ESP10, 327, 361, 372, 389, 407, 441, , 445
ESP10, 327, 356, 367, 388, 402, 443, , 447
ESP10, 322, 348, 358, 382, 397, 446, , 450
ESP10, 318, 345, 355, 378, 397, 448, , 452
ESP10, 316, 341, 352, 375, 396, 450, , 454
ESP10, 315, 338, 351, 372, 394, 453, , 457
ESP10, 310, 334, 348, 367, 389, 455, , 459
ESP10, 314, 338, 353, 372, 394, 457, , 461
ESP10, 319, 341, 356, 374, 399, 459, , 463
ESP10, 312, 329, 346, 362, 389, 462, , 466
ESP10, 312, 325, 341, 356, 384, 464, , 468
ESP10, 307, 322, 338, 351, 378, 466, , 470
ESP10, 292, 309, 324, 338, 364, 469, , 473
ESP10, 291, 308, 325, 338, 363, 471, , 475
ESP10, 289, 307, 325, 340, 362, 473, , 477
ESP10, 297, 319, 335, 351, 372, 476, , 480
ESP10, 297, 321, 339, 355, 374, 478, , 482
ESP10, 301, 328, 344, 360, 379, 480, , 484
ESP10, 307, 334, 350, 367, 384, 482, , 486
ESP10, 310, 337, 352, 371, 385, 485, , 489
ESP10, 305, 332, 345, 365, 380, 487, , 491
ESP10, 308, 337, 349, 367, 385, 489, , 493
ESP10, 299, 329, 342, 359, 377, 492, , 496
ESP10, 295, 326, 341, 356, 375, 494, , 498
ESP10, 294, 325, 342, 360, 377, 496, , 500
ESP10, 298, 330, 347, 366, 381, 499, , 503
ESP10, 299, 335, 350, 367, 382, 501, , 505
ESP10, 297, 333, 347, 365, 381, 503, , 507
ESP10, 300, 334, 348, 366, 380, 505, , 509
ESP10, 301, 336, 348, 365, 379, 508, , 512
ESP10, 303, 340, 351, 369, 382, 510, , 514
ESP10, 302, 337, 350, 368, 380, 512, , 516
ESP10, 301, 333, 346, 364, 376, 515, , 519
ESP10, 302, 338, 346, 365, 376, 517, , 521
ESP10, 310, 345, 352, 371, 384, 519, , 523
ESP10, 316, 344, 354, 372, 385, 522, , 526
ESP10, 317, 346, 356, 375, 385, 524, , 528
ESP10, 314, 339, 353, 371, 379, 526, , 530
ESP10, 316, 340, 355, 371, 380, 528, , 532
ESP10, 316, 342, 356, 373, 380, 531, , 535
ESP10, 316, 342, 356, 375, 381, 533, , 537
ESP10, 321, 346, 362, 379, 386, 535, , 539
ESP10, 325, 351, 368, 384, 393, 538, , 542
ESP10, 328, 353, 369, 385, 396, 540, , 544
ESP10, 329, 355, 371, 389, 398, 542, , 546
ESP10, 326, 354, 368, 385, 397, 545, , 549
ESP10, 323, 353, 367, 382, 395, 547, , 551
ESP10, 322, 354, 367, 382, 395, 549, , 553
ESP10, 328, 360, 373, 387, 400, 552, , 556
ESP10, 327, 358, 373, 386, 397, 554, , 558
ESP10, 329, 360, 373, 387, 398, 556, , 560
ESP10, 322, 355, 368, 381, 393, 558, , 562
ESP10, 324, 356, 370, 384, 392, 561, , 565
ESP10, 322, 353, 368, 382, 389, 563, , 567
ESP10, 325, 351, 366, 380, 388, 565, , 569
ESP10, 320, 344, 360, 376, 380, 568, , 572
ESP10, 321, 345, 362, 377, 384, 570, , 574
ESP10, 331, 353, 370, 384, 396, 572, , 576
ESP10, 326, 348, 364, 379, 390, 575, , 579
ESP10, 335, 358, 374, 387, 396, 577, , 581
ESP10, 336, 357, 372, 387, 394, 579, , 583
ESP10, 341, 360, 372, 386, 394, 581, , 585
ESP10, 345, 365, 379, 392, 399, 584, , 588
ESP10, 342, 361, 378, 390, 396, 586, , 590
ESP10, 349, 365, 383, 393, 402, 588, , 592
ESP10, 351, 361, 382, 392, 401, 591, , 595
ESP10, 349, 360, 379, 388, 397, 593, , 597
ESP10, 348, 360, 379, 388, 396, 595, , 599
ESP10, 350, 364, 382, 389, 398, 598, , 602
ESP10, 352, 367, 385, 392, 402, 600, , 604
ESP10, 356, 370, 387, 395, 404, 602, , 606
ESP10, 358, 374, 385, 392, 402, 604, , 608
ESP10, 362, 380, 392, 398, 407, 607, , 611
ESP10, 359, 376, 387, 396, 403, 609, , 613
ESP10, 359, 374, 387, 394, 403, 611, , 615
ESP10, 356, 369, 380, 388, 397, 614, , 618
ESP10, 357, 371, 381, 392, 396, 616, , 620
ESP10, 358, 371, 382, 391, 395, 618, , 622
ESP10, 363, 375, 386, 396, 399, 621, , 625
ESP10, 371, 380, 392, 400, 405, 623, , 627
ESP10, 374, 382, 394, 402, 408, 625, , 629
ESP10, 374, 383, 396, 402, 409, 627, , 631
ESP10, 374, 384, 394, 403, 408, 630, , 634
ESP10, 373, 382, 391, 400, 404, 632, , 636
ESP10, 380, 389, 399, 405, 411, 634, , 638
ESP10, 378, 387, 396, 404, 409, 637, , 641
ESP10, 376, 386, 394, 403, 407, 639, , 643
ESP10, 379, 385, 393, 403, 407, 641, , 645
ESP10, 385, 393, 400, 407, 411, 644, , 648
ESP10, 383, 390, 398, 402, 405, 667, , 671
ESP10, 385, 393, 400, 404, 407, 669, , 673
ESP10, 385, 394, 400, 403, 407, 671, , 675
ESP10, 388, 398, 404, 407, 410, 674, , 678
ESP10, 391, 401, 407, 410, 413, 676, , 680
ESP10, 394, 402, 407, 411, 414, 678, , 682
ESP10, 397, 406, 410, 414, 416, 680, , 684
ESP10, 398, 406, 410, 414, 416, 683, , 687
ESP10, 397, 405, 411, 413, 415, 685, , 689
ESP10, 401, 409, 414, 415, 418, 687, , 691
ESP10, 400, 409, 413, 415, 417, 690, , 694
ESP10, 402, 408, 412, 415, 417, 692, , 696
ESP10, 406, 411, 414, 418, 419, 694, , 698
ESP10, 405, 410, 414, 417, 419, 697, , 701
ESP10, 407, 411, 416, 418, 419, 699, , 703
ESP10, 406, 409, 414, 416, 418, 701, , 705
ESP10, 407, 411, 415, 418, 419, 703, , 707
ESP10, 408, 411, 415, 417, 418, 706, , 710
ESP10, 408, 410, 414, 416, 418, 708, , 712
ESP10, 408, 411, 414, 416, 418, 710, , 714
ESP10, 407, 411, 414, 416, 417, 713, , 717
ESP10, 408, 412, 415, 417, 418, 715, , 719
ESP10, 407, 412, 414, 416, 417, 717, , 721
ESP10, 404, 409, 411, 413, 415, 720, , 724
ESP10, 405, 410, 413, 415, 417, 722, , 726
ESP10, 404, 409, 412, 414, 416, 724, , 728
ESP10, 399, 405, 408, 410, 412, 726, , 730
ESP10, 397, 404, 407, 409, 411, 729, , 733
ESP10, 399, 405, 408, 410, 412, 731, , 735
ESP10, 398, 403, 406, 408, 409, 733, , 737
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
Overlay
ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/natural/PRWW1N_SQIN.ESPF10.csv
PRWW1N_SQIN.ESPF0.csv|2025-07-17
PRWW1N_SQIN.ESPF10.csv|2025-07-17
PRWW1N_SQIN.ESPFM.csv|2025-07-17
APR-SEP
COLUMBIA - PRIEST RAPIDS DAM
(
PRWW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2025-07-17
Issued:
2025-07-17
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
51376
63915
94
83724
68225
APR-JUL
41973
51086
89
66177
57704
JAN-SEP
57737
71457
92
91546
77879
JAN-JUL
48340
60192
89
74292
67358
OCT-SEP
65188
81813
93
102078
87958
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/PRWW1N_SQIN.ESPF10.csv
PRWW1N_SQIN.ESPF0.csv|2025-07-17
PRWW1N_SQIN.ESPF10.csv|2025-07-17
PRWW1N_SQIN.ESPFM.csv|2025-07-17
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
