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Archive:
Water Year
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COLUMBIA - BLO PRIEST RAPIDS DAM
(
PRDW1
)
Forecasts for Water Year
2025
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
51148
51776
76
52840
68162
APR-JUL
44464
44553
76
44712
58905
JAN-SEP
60021
60649
77
61713
78616
JAN-JUL
53337
53426
77
53585
69359
OCT-SEP
69108
69736
79
70799
88197
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
APR-SEP
51178
51598
76
52957
68162
APR-JUL
44280
44535
76
44858
58905
JAN-SEP
60051
60471
77
61830
78616
JAN-JUL
53153
53408
77
53731
69359
OCT-SEP
69137
69557
79
70917
88197
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
APR-SEP
51245
51796
76
53263
68162
APR-JUL
44303
44615
76
45079
58905
JAN-SEP
60118
60669
77
62136
78616
JAN-JUL
53176
53488
77
53952
69359
OCT-SEP
69204
69756
79
71222
88197
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 198, 276, 327, 383, 419, 70, , 74
ESP10, 201, 279, 327, 388, 421, 73, , 77
ESP10, 203, 286, 329, 390, 425, 75, , 79
ESP10, 203, 285, 333, 389, 424, 77, , 81
ESP10, 206, 284, 338, 388, 423, 80, , 84
ESP10, 207, 285, 342, 387, 426, 82, , 86
ESP10, 212, 286, 342, 391, 427, 84, , 88
ESP10, 213, 288, 343, 392, 427, 87, , 91
ESP10, 206, 283, 336, 384, 420, 89, , 93
ESP10, 204, 284, 333, 382, 419, 92, , 96
ESP10, 200, 290, 329, 379, 416, 94, , 98
ESP10, 197, 290, 327, 378, 415, 96, , 100
ESP10, 203, 295, 333, 383, 422, 99, , 103
ESP10, 205, 299, 335, 386, 425, 101, , 105
ESP10, 205, 297, 332, 382, 423, 103, , 107
ESP10, 197, 290, 325, 379, 419, 106, , 110
ESP10, 194, 285, 324, 379, 415, 108, , 112
ESP10, 188, 279, 321, 375, 409, 110, , 114
ESP10, 185, 278, 327, 375, 410, 113, , 117
ESP10, 181, 276, 323, 374, 410, 115, , 119
ESP10, 183, 277, 324, 375, 410, 117, , 121
ESP10, 193, 285, 329, 392, 417, 120, , 124
ESP10, 187, 282, 325, 389, 415, 122, , 126
ESP10, 191, 288, 335, 395, 420, 124, , 128
ESP10, 193, 290, 335, 396, 421, 127, , 131
ESP10, 197, 298, 342, 398, 425, 129, , 133
ESP10, 204, 301, 347, 403, 431, 131, , 135
ESP10, 211, 305, 352, 408, 436, 134, , 138
ESP10, 209, 306, 350, 408, 435, 136, , 140
ESP10, 204, 305, 347, 406, 433, 139, , 143
ESP10, 188, 289, 337, 392, 424, 141, , 145
ESP10, 186, 290, 335, 387, 424, 143, , 147
ESP10, 186, 292, 336, 386, 430, 146, , 150
ESP10, 178, 286, 328, 377, 423, 148, , 152
ESP10, 175, 278, 320, 367, 414, 150, , 154
ESP10, 176, 273, 319, 365, 410, 153, , 157
ESP10, 184, 277, 321, 368, 415, 155, , 159
ESP10, 177, 266, 313, 360, 405, 157, , 161
ESP10, 175, 264, 313, 357, 404, 160, , 164
ESP10, 183, 279, 325, 367, 415, 162, , 166
ESP10, 199, 294, 339, 381, 429, 164, , 168
ESP10, 207, 296, 340, 391, 431, 167, , 171
ESP10, 201, 284, 335, 381, 422, 169, , 173
ESP10, 213, 289, 339, 380, 426, 171, , 175
ESP10, 177, 253, 301, 343, 390, 174, , 178
ESP10, 170, 245, 293, 334, 383, 176, , 180
ESP10, 179, 254, 301, 343, 391, 178, , 182
ESP10, 196, 267, 317, 355, 408, 181, , 185
ESP10, 201, 271, 321, 366, 414, 183, , 187
ESP10, 209, 278, 334, 371, 421, 186, , 190
ESP10, 206, 275, 327, 365, 417, 188, , 192
ESP10, 214, 285, 331, 373, 421, 190, , 194
ESP10, 221, 300, 342, 381, 425, 193, , 197
ESP10, 217, 296, 337, 382, 421, 195, , 199
ESP10, 212, 291, 330, 380, 417, 197, , 201
ESP10, 221, 294, 330, 382, 423, 200, , 204
ESP10, 216, 285, 325, 374, 415, 202, , 206
ESP10, 219, 286, 327, 379, 417, 204, , 208
ESP10, 222, 288, 334, 388, 420, 207, , 211
ESP10, 233, 296, 343, 396, 425, 209, , 213
ESP10, 235, 297, 345, 399, 427, 211, , 215
ESP10, 232, 296, 342, 397, 427, 214, , 218
ESP10, 234, 295, 344, 397, 426, 216, , 220
ESP10, 230, 284, 340, 389, 423, 218, , 222
ESP10, 234, 287, 349, 392, 431, 221, , 225
ESP10, 238, 289, 354, 394, 435, 223, , 227
ESP10, 230, 281, 347, 387, 432, 226, , 230
ESP10, 239, 289, 355, 393, 439, 228, , 232
ESP10, 238, 286, 351, 389, 436, 230, , 234
ESP10, 236, 295, 346, 382, 431, 233, , 237
ESP10, 252, 313, 364, 396, 446, 235, , 239
ESP10, 253, 319, 365, 399, 449, 237, , 241
ESP10, 247, 314, 363, 396, 446, 240, , 244
ESP10, 238, 302, 354, 388, 439, 242, , 246
ESP10, 228, 284, 345, 372, 425, 244, , 248
ESP10, 225, 274, 338, 364, 418, 247, , 251
ESP10, 230, 276, 343, 367, 424, 249, , 253
ESP10, 235, 283, 347, 372, 427, 251, , 255
ESP10, 235, 284, 347, 374, 426, 254, , 258
ESP10, 233, 282, 335, 364, 416, 256, , 260
ESP10, 230, 274, 326, 355, 407, 258, , 262
ESP10, 243, 279, 331, 360, 411, 261, , 265
ESP10, 241, 274, 326, 355, 405, 263, , 267
ESP10, 254, 286, 339, 368, 416, 265, , 269
ESP10, 247, 277, 334, 364, 410, 268, , 272
ESP10, 257, 286, 342, 374, 419, 270, , 274
ESP10, 254, 282, 335, 368, 414, 273, , 277
ESP10, 258, 287, 335, 370, 429, 275, , 279
ESP10, 258, 287, 335, 376, 430, 277, , 281
ESP10, 265, 294, 342, 381, 434, 280, , 284
ESP10, 268, 305, 350, 384, 433, 282, , 286
ESP10, 261, 298, 343, 376, 424, 284, , 288
ESP10, 266, 303, 352, 379, 429, 287, , 291
ESP10, 271, 310, 358, 385, 436, 289, , 293
ESP10, 269, 324, 360, 389, 437, 294, , 298
ESP10, 270, 325, 363, 389, 438, 296, , 300
ESP10, 273, 328, 364, 394, 440, 298, , 302
ESP10, 280, 335, 366, 396, 442, 301, , 305
ESP10, 289, 336, 368, 402, 443, 303, , 307
ESP10, 292, 337, 370, 407, 444, 305, , 309
ESP10, 294, 337, 373, 409, 445, 308, , 312
ESP10, 293, 337, 373, 409, 444, 310, , 314
ESP10, 292, 338, 375, 408, 442, 312, , 316
ESP10, 297, 342, 376, 410, 448, 315, , 319
ESP10, 300, 348, 379, 409, 449, 317, , 321
ESP10, 304, 359, 382, 412, 451, 320, , 324
ESP10, 304, 360, 383, 413, 451, 322, , 326
ESP10, 307, 361, 385, 415, 453, 324, , 328
ESP10, 314, 368, 390, 422, 457, 327, , 331
ESP10, 320, 369, 390, 424, 456, 329, , 333
ESP10, 322, 372, 395, 427, 459, 331, , 335
ESP10, 319, 375, 396, 425, 457, 334, , 338
ESP10, 315, 370, 394, 422, 455, 336, , 340
ESP10, 316, 371, 399, 424, 455, 338, , 342
ESP10, 321, 376, 401, 426, 456, 341, , 345
ESP10, 316, 373, 395, 423, 452, 343, , 347
ESP10, 312, 370, 391, 419, 448, 345, , 349
ESP10, 318, 373, 392, 422, 452, 348, , 352
ESP10, 318, 374, 392, 422, 455, 350, , 354
ESP10, 320, 376, 396, 423, 457, 352, , 356
ESP10, 325, 382, 400, 426, 465, 355, , 359
ESP10, 326, 383, 399, 425, 466, 357, , 361
ESP10, 330, 381, 397, 422, 465, 360, , 364
ESP10, 335, 381, 398, 421, 465, 362, , 366
ESP10, 332, 379, 398, 420, 464, 364, , 368
ESP10, 335, 380, 399, 421, 464, 367, , 371
ESP10, 337, 382, 398, 420, 463, 369, , 373
ESP10, 331, 372, 387, 412, 453, 371, , 375
ESP10, 339, 382, 398, 424, 459, 374, , 378
ESP10, 339, 383, 400, 423, 456, 376, , 380
ESP10, 346, 386, 405, 427, 459, 378, , 382
ESP10, 353, 391, 413, 430, 463, 381, , 385
ESP10, 353, 392, 412, 429, 462, 383, , 387
ESP10, 353, 398, 413, 430, 461, 385, , 389
ESP10, 342, 385, 400, 420, 449, 388, , 392
ESP10, 336, 377, 394, 413, 442, 390, , 394
ESP10, 333, 373, 391, 412, 438, 392, , 396
ESP10, 335, 375, 396, 414, 440, 395, , 399
ESP10, 336, 375, 398, 413, 441, 397, , 401
ESP10, 340, 376, 400, 414, 443, 399, , 403
ESP10, 339, 378, 398, 416, 441, 402, , 406
ESP10, 335, 370, 393, 411, 437, 404, , 408
ESP10, 333, 361, 385, 408, 431, 407, , 411
ESP10, 343, 368, 391, 416, 439, 409, , 413
ESP10, 352, 379, 400, 425, 446, 411, , 415
ESP10, 356, 385, 403, 427, 448, 414, , 418
ESP10, 356, 385, 403, 426, 448, 416, , 420
ESP10, 355, 384, 403, 422, 445, 418, , 422
ESP10, 352, 378, 397, 416, 439, 421, , 425
ESP10, 349, 377, 396, 412, 435, 423, , 427
ESP10, 352, 380, 399, 414, 436, 425, , 429
ESP10, 353, 381, 400, 414, 436, 428, , 432
ESP10, 359, 385, 406, 418, 442, 430, , 434
ESP10, 353, 382, 398, 413, 435, 432, , 436
ESP10, 347, 376, 390, 411, 429, 435, , 439
ESP10, 338, 366, 380, 399, 419, 437, , 441
ESP10, 345, 372, 384, 404, 424, 439, , 443
ESP10, 349, 374, 389, 407, 427, 442, , 446
ESP10, 346, 374, 386, 405, 423, 444, , 448
ESP10, 341, 372, 383, 402, 419, 446, , 450
ESP10, 333, 366, 376, 394, 412, 449, , 453
ESP10, 333, 362, 371, 394, 407, 451, , 455
ESP10, 328, 354, 363, 388, 403, 454, , 458
ESP10, 324, 350, 360, 384, 401, 456, , 460
ESP10, 323, 347, 358, 380, 401, 458, , 462
ESP10, 322, 345, 357, 378, 400, 461, , 465
ESP10, 318, 342, 354, 373, 395, 463, , 467
ESP10, 321, 344, 359, 376, 399, 465, , 469
ESP10, 326, 348, 362, 379, 404, 468, , 472
ESP10, 319, 337, 352, 367, 393, 470, , 474
ESP10, 320, 335, 349, 362, 390, 472, , 476
ESP10, 315, 331, 346, 357, 385, 475, , 479
ESP10, 300, 316, 332, 345, 371, 477, , 481
ESP10, 299, 316, 332, 344, 370, 479, , 483
ESP10, 297, 316, 334, 348, 371, 482, , 486
ESP10, 305, 326, 343, 359, 379, 484, , 488
ESP10, 305, 328, 345, 363, 381, 486, , 490
ESP10, 310, 336, 353, 369, 386, 489, , 493
ESP10, 317, 342, 358, 375, 391, 491, , 495
ESP10, 320, 343, 359, 378, 392, 494, , 498
ESP10, 314, 340, 352, 371, 386, 496, , 500
ESP10, 317, 345, 355, 374, 391, 498, , 502
ESP10, 309, 338, 350, 367, 385, 501, , 505
ESP10, 304, 332, 347, 365, 382, 503, , 507
ESP10, 303, 333, 349, 367, 384, 505, , 509
ESP10, 307, 338, 353, 372, 387, 508, , 512
ESP10, 308, 341, 357, 374, 389, 510, , 514
ESP10, 306, 338, 355, 372, 387, 512, , 516
ESP10, 309, 339, 356, 373, 387, 515, , 519
ESP10, 310, 342, 356, 373, 386, 517, , 521
ESP10, 312, 345, 359, 377, 388, 519, , 523
ESP10, 311, 342, 358, 375, 387, 522, , 526
ESP10, 310, 338, 355, 372, 383, 524, , 528
ESP10, 311, 343, 354, 373, 383, 526, , 530
ESP10, 318, 349, 359, 378, 389, 529, , 533
ESP10, 323, 350, 360, 379, 390, 531, , 535
ESP10, 325, 351, 362, 381, 390, 533, , 537
ESP10, 322, 346, 359, 376, 386, 536, , 540
ESP10, 323, 346, 361, 378, 386, 538, , 542
ESP10, 323, 347, 362, 380, 388, 541, , 545
ESP10, 323, 347, 363, 380, 388, 543, , 547
ESP10, 328, 352, 368, 385, 393, 545, , 549
ESP10, 333, 357, 374, 390, 400, 548, , 552
ESP10, 335, 358, 376, 391, 403, 550, , 554
ESP10, 336, 360, 377, 393, 405, 552, , 556
ESP10, 333, 361, 375, 390, 403, 555, , 559
ESP10, 330, 360, 374, 387, 402, 557, , 561
ESP10, 328, 360, 373, 386, 401, 559, , 563
ESP10, 334, 366, 379, 391, 405, 562, , 566
ESP10, 333, 364, 378, 389, 402, 564, , 568
ESP10, 339, 368, 383, 396, 407, 566, , 570
ESP10, 329, 359, 374, 386, 397, 569, , 573
ESP10, 330, 360, 376, 390, 397, 571, , 575
ESP10, 329, 357, 374, 387, 394, 573, , 577
ESP10, 330, 354, 372, 385, 391, 576, , 580
ESP10, 326, 347, 365, 381, 383, 578, , 582
ESP10, 326, 348, 367, 382, 388, 580, , 584
ESP10, 337, 356, 376, 390, 400, 583, , 587
ESP10, 333, 354, 370, 385, 394, 585, , 589
ESP10, 341, 363, 377, 392, 400, 588, , 592
ESP10, 343, 361, 376, 391, 398, 590, , 594
ESP10, 345, 364, 376, 391, 398, 592, , 596
ESP10, 349, 370, 383, 396, 404, 595, , 599
ESP10, 347, 366, 382, 394, 401, 597, , 601
ESP10, 354, 369, 387, 398, 407, 599, , 603
ESP10, 356, 367, 386, 396, 405, 602, , 606
ESP10, 352, 365, 384, 393, 401, 604, , 608
ESP10, 351, 364, 383, 392, 399, 606, , 610
ESP10, 354, 368, 385, 394, 402, 609, , 613
ESP10, 357, 371, 389, 397, 407, 611, , 615
ESP10, 361, 375, 391, 399, 409, 613, , 617
ESP10, 363, 379, 389, 396, 407, 616, , 620
ESP10, 367, 385, 395, 401, 411, 618, , 622
ESP10, 364, 380, 391, 400, 408, 620, , 624
ESP10, 365, 379, 392, 398, 407, 623, , 627
ESP10, 360, 373, 385, 393, 401, 625, , 629
ESP10, 362, 374, 386, 394, 401, 628, , 632
ESP10, 364, 376, 387, 395, 401, 630, , 634
ESP10, 368, 381, 391, 399, 405, 632, , 636
ESP10, 376, 385, 396, 405, 410, 635, , 639
ESP10, 379, 386, 399, 406, 413, 637, , 641
ESP10, 380, 388, 399, 407, 414, 639, , 643
ESP10, 381, 389, 399, 408, 413, 642, , 646
ESP10, 381, 388, 396, 406, 411, 644, , 648
ESP10, 387, 395, 403, 410, 417, 646, , 650
ESP10, 384, 393, 399, 409, 414, 649, , 653
ESP10, 383, 391, 398, 408, 412, 651, , 655
ESP10, 384, 389, 396, 407, 410, 653, , 657
ESP10, 389, 397, 403, 411, 415, 656, , 660
ESP10, 385, 393, 402, 405, 407, 679, , 683
ESP10, 386, 396, 403, 406, 409, 682, , 686
ESP10, 386, 397, 403, 406, 409, 684, , 688
ESP10, 389, 401, 407, 410, 412, 686, , 690
ESP10, 392, 404, 409, 413, 416, 689, , 693
ESP10, 395, 404, 410, 414, 417, 691, , 695
ESP10, 398, 408, 412, 416, 419, 693, , 697
ESP10, 400, 408, 412, 417, 419, 696, , 700
ESP10, 399, 407, 412, 416, 418, 698, , 702
ESP10, 401, 411, 415, 418, 420, 700, , 704
ESP10, 401, 411, 415, 417, 420, 703, , 707
ESP10, 402, 410, 414, 417, 419, 705, , 709
ESP10, 405, 412, 416, 419, 421, 707, , 711
ESP10, 406, 411, 416, 419, 420, 710, , 714
ESP10, 408, 411, 417, 419, 420, 712, , 716
ESP10, 406, 410, 416, 418, 419, 714, , 718
ESP10, 407, 411, 417, 419, 421, 717, , 721
ESP10, 408, 412, 417, 419, 421, 719, , 723
ESP10, 408, 411, 416, 418, 419, 722, , 726
ESP10, 409, 412, 416, 418, 419, 724, , 728
ESP10, 408, 412, 415, 418, 419, 726, , 730
ESP10, 409, 413, 416, 419, 419, 729, , 733
ESP10, 408, 412, 415, 418, 419, 731, , 735
ESP10, 405, 409, 413, 415, 417, 733, , 737
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/PRDW1W_SQIN.ESPF10.csv
PRDW1W_SQIN.ESPF0.csv|2025-07-11
PRDW1W_SQIN.ESPF10.csv|2025-07-11
PRDW1W_SQIN.ESPFM.csv|2025-07-11
APR-SEP
COLUMBIA - BLO PRIEST RAPIDS DAM
(
PRDW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
50293
63063
93
83004
68162
APR-JUL
43016
52799
90
70054
58905
JAN-SEP
56955
70456
90
91015
78616
JAN-JUL
49426
61545
89
78352
69359
OCT-SEP
64290
80708
92
100578
88197
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/PRDW1W_SQIN.ESPF10.csv
PRDW1W_SQIN.ESPF0.csv|2025-07-11
PRDW1W_SQIN.ESPF10.csv|2025-07-11
PRDW1W_SQIN.ESPFM.csv|2025-07-11
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
