Choose Date:
Archive:
Water Year
Loading...
COLUMBIA - PRIEST RAPIDS DAM
(
PRWW1
)
Forecasts for Water Year
2026
Natural Forecast
ESP with 10 Days QPF
Ensemble:
2026-05-02
Issued:
2026-05-02
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
63675
66859
98
72875
68225
APR-JUL
51207
53967
94
58705
57704
JAN-SEP
77760
80944
104
86960
77879
JAN-JUL
65292
68053
101
72791
67358
OCT-SEP
89522
92706
105
98722
87958
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-05-01
Issued:
2026-05-01
Hide Forecast
APR-SEP
65202
68574
101
74334
68225
APR-JUL
53305
56087
97
60814
57704
JAN-SEP
79287
82659
106
88419
77879
JAN-JUL
67390
70172
104
74899
67358
OCT-SEP
91050
94421
107
100181
87958
Reference
ESP with 0 Days QPF
Ensemble:
2026-05-02
Issued:
2026-05-02
Hide Forecast
APR-SEP
65634
68894
101
74515
68225
APR-JUL
52497
55288
96
60249
57704
JAN-SEP
79719
82980
107
88600
77879
JAN-JUL
66582
69373
103
74334
67358
OCT-SEP
91481
94742
108
100362
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, 74, , 78
ESP10, 222, 298, 351, 407, 436, 77, , 81
ESP10, 221, 298, 352, 405, 434, 80, , 84
ESP10, 222, 298, 353, 402, 432, 84, , 88
ESP10, 220, 296, 352, 398, 431, 87, , 91
ESP10, 225, 299, 353, 401, 436, 90, , 94
ESP10, 229, 302, 358, 402, 436, 93, , 97
ESP10, 230, 305, 359, 402, 437, 96, , 100
ESP10, 227, 307, 356, 400, 436, 99, , 103
ESP10, 227, 312, 359, 401, 437, 102, , 106
ESP10, 225, 312, 358, 402, 436, 105, , 109
ESP10, 219, 307, 352, 397, 432, 109, , 113
ESP10, 221, 308, 354, 401, 434, 112, , 116
ESP10, 221, 306, 351, 399, 434, 115, , 119
ESP10, 208, 297, 337, 389, 424, 118, , 122
ESP10, 198, 286, 329, 380, 414, 121, , 125
ESP10, 209, 296, 342, 393, 425, 124, , 128
ESP10, 210, 298, 346, 395, 428, 127, , 131
ESP10, 210, 299, 346, 397, 431, 130, , 134
ESP10, 200, 291, 337, 387, 421, 133, , 137
ESP10, 201, 291, 336, 391, 420, 137, , 141
ESP10, 194, 288, 331, 386, 420, 140, , 144
ESP10, 202, 297, 343, 392, 429, 143, , 147
ESP10, 207, 302, 348, 401, 432, 146, , 150
ESP10, 211, 308, 352, 406, 436, 149, , 153
ESP10, 213, 306, 352, 406, 436, 152, , 156
ESP10, 215, 308, 351, 406, 436, 155, , 159
ESP10, 205, 300, 343, 399, 428, 158, , 162
ESP10, 189, 287, 330, 387, 417, 161, , 165
ESP10, 188, 286, 332, 386, 421, 165, , 169
ESP10, 194, 292, 338, 388, 428, 168, , 172
ESP10, 190, 288, 337, 387, 427, 171, , 175
ESP10, 202, 299, 345, 400, 437, 174, , 178
ESP10, 208, 303, 347, 402, 438, 177, , 181
ESP10, 211, 303, 347, 400, 436, 180, , 184
ESP10, 213, 302, 346, 398, 437, 183, , 187
ESP10, 210, 295, 344, 389, 430, 186, , 190
ESP10, 216, 301, 351, 395, 438, 190, , 194
ESP10, 213, 300, 352, 390, 437, 193, , 197
ESP10, 214, 302, 351, 392, 438, 196, , 200
ESP10, 219, 302, 349, 396, 438, 199, , 203
ESP10, 230, 307, 361, 402, 445, 202, , 206
ESP10, 243, 312, 365, 403, 450, 205, , 209
ESP10, 237, 307, 357, 396, 441, 208, , 212
ESP10, 246, 312, 363, 402, 445, 211, , 215
ESP10, 238, 304, 354, 395, 439, 214, , 218
ESP10, 246, 310, 363, 400, 450, 218, , 222
ESP10, 241, 304, 358, 401, 446, 221, , 225
ESP10, 245, 310, 364, 402, 450, 224, , 228
ESP10, 246, 310, 364, 400, 448, 227, , 231
ESP10, 247, 315, 359, 399, 444, 230, , 234
ESP10, 244, 317, 357, 396, 439, 233, , 237
ESP10, 254, 326, 367, 407, 447, 236, , 240
ESP10, 250, 322, 362, 407, 444, 239, , 243
ESP10, 253, 318, 359, 408, 444, 243, , 247
ESP10, 251, 314, 355, 403, 439, 246, , 250
ESP10, 251, 312, 355, 403, 439, 249, , 253
ESP10, 252, 313, 361, 408, 441, 252, , 256
ESP10, 243, 303, 351, 400, 431, 255, , 259
ESP10, 232, 293, 341, 389, 421, 258, , 262
ESP10, 236, 294, 343, 392, 423, 261, , 265
ESP10, 229, 284, 337, 385, 414, 264, , 268
ESP10, 214, 262, 320, 365, 402, 267, , 271
ESP10, 214, 264, 326, 365, 407, 271, , 275
ESP10, 209, 261, 320, 360, 405, 274, , 278
ESP10, 220, 272, 330, 372, 419, 277, , 281
ESP10, 203, 257, 315, 358, 404, 280, , 284
ESP10, 176, 229, 286, 329, 377, 283, , 287
ESP10, 167, 227, 278, 318, 368, 286, , 290
ESP10, 167, 230, 280, 319, 369, 289, , 293
ESP10, 173, 242, 288, 326, 377, 292, , 296
ESP10, 174, 242, 292, 328, 378, 295, , 299
ESP10, 169, 234, 287, 320, 373, 299, , 303
ESP10, 174, 231, 290, 322, 372, 302, , 306
ESP10, 182, 231, 293, 322, 374, 305, , 309
ESP10, 184, 230, 299, 322, 377, 308, , 312
ESP10, 182, 226, 296, 318, 374, 311, , 315
ESP10, 178, 225, 291, 313, 368, 314, , 318
ESP10, 181, 227, 283, 307, 362, 317, , 321
ESP10, 194, 236, 289, 314, 367, 320, , 324
ESP10, 200, 234, 287, 312, 365, 324, , 328
ESP10, 213, 245, 298, 324, 376, 327, , 331
ESP10, 218, 249, 301, 333, 380, 330, , 334
ESP10, 213, 241, 296, 329, 375, 333, , 337
ESP10, 209, 236, 291, 327, 373, 336, , 340
ESP10, 211, 240, 293, 328, 376, 339, , 343
ESP10, 216, 245, 297, 332, 390, 342, , 346
ESP10, 212, 243, 293, 331, 388, 345, , 349
ESP10, 217, 246, 297, 332, 388, 348, , 352
ESP10, 224, 260, 304, 338, 390, 352, , 356
ESP10, 222, 257, 304, 335, 386, 355, , 359
ESP10, 215, 251, 303, 329, 382, 358, , 362
ESP10, 216, 254, 304, 331, 386, 361, , 365
ESP10, 207, 250, 297, 325, 380, 364, , 368
ESP10, 206, 262, 298, 329, 381, 367, , 371
ESP10, 206, 262, 301, 329, 382, 370, , 374
ESP10, 206, 261, 299, 332, 380, 373, , 377
ESP10, 208, 263, 300, 331, 378, 377, , 381
ESP10, 212, 263, 295, 333, 375, 380, , 384
ESP10, 210, 261, 294, 332, 372, 383, , 387
ESP10, 211, 260, 295, 333, 372, 386, , 390
ESP10, 210, 258, 294, 331, 368, 389, , 393
ESP10, 207, 257, 292, 328, 365, 392, , 396
ESP10, 214, 261, 291, 327, 365, 395, , 399
ESP10, 215, 261, 292, 325, 363, 398, , 402
ESP10, 212, 264, 290, 323, 363, 401, , 405
ESP10, 213, 266, 292, 327, 363, 405, , 409
ESP10, 215, 267, 294, 327, 364, 408, , 412
ESP10, 226, 279, 302, 337, 371, 411, , 415
ESP10, 233, 284, 305, 339, 372, 414, , 418
ESP10, 239, 291, 312, 346, 378, 417, , 421
ESP10, 238, 293, 316, 348, 378, 420, , 424
ESP10, 242, 297, 321, 351, 382, 423, , 427
ESP10, 242, 296, 322, 352, 382, 426, , 430
ESP10, 238, 292, 317, 347, 375, 429, , 433
ESP10, 242, 296, 319, 352, 379, 433, , 437
ESP10, 243, 299, 321, 354, 380, 436, , 440
ESP10, 249, 301, 321, 356, 383, 439, , 443
ESP10, 248, 302, 321, 355, 385, 442, , 446
ESP10, 246, 302, 323, 354, 385, 445, , 449
ESP10, 240, 296, 314, 344, 380, 448, , 452
ESP10, 234, 289, 307, 336, 375, 451, , 455
ESP10, 243, 291, 310, 338, 378, 454, , 458
ESP10, 245, 291, 311, 339, 381, 458, , 462
ESP10, 243, 289, 311, 337, 379, 461, , 465
ESP10, 242, 286, 306, 334, 374, 464, , 468
ESP10, 251, 296, 316, 339, 381, 467, , 471
ESP10, 252, 294, 312, 339, 377, 470, , 474
ESP10, 250, 293, 313, 343, 375, 473, , 477
ESP10, 254, 296, 316, 344, 375, 476, , 480
ESP10, 258, 299, 322, 345, 374, 479, , 483
ESP10, 253, 293, 318, 337, 367, 482, , 486
ESP10, 256, 297, 320, 338, 369, 486, , 490
ESP10, 253, 298, 317, 338, 366, 489, , 493
ESP10, 241, 286, 303, 328, 352, 492, , 496
ESP10, 243, 286, 303, 329, 352, 495, , 499
ESP10, 249, 293, 311, 335, 358, 498, , 502
ESP10, 237, 281, 302, 323, 346, 501, , 505
ESP10, 249, 289, 314, 332, 357, 504, , 508
ESP10, 245, 284, 307, 327, 350, 507, , 511
ESP10, 253, 290, 313, 332, 357, 511, , 515
ESP10, 254, 287, 310, 331, 355, 514, , 518
ESP10, 266, 294, 317, 340, 363, 517, , 521
ESP10, 271, 296, 318, 343, 365, 520, , 524
ESP10, 275, 298, 320, 345, 367, 523, , 527
ESP10, 275, 299, 323, 344, 366, 526, , 530
ESP10, 270, 296, 316, 339, 361, 529, , 533
ESP10, 265, 292, 313, 332, 356, 532, , 536
ESP10, 258, 284, 306, 322, 346, 535, , 539
ESP10, 262, 288, 307, 323, 346, 539, , 543
ESP10, 260, 283, 305, 321, 341, 542, , 546
ESP10, 253, 277, 297, 313, 332, 545, , 549
ESP10, 248, 271, 296, 307, 328, 548, , 552
ESP10, 242, 267, 289, 301, 323, 551, , 555
ESP10, 241, 269, 285, 303, 321, 554, , 558
ESP10, 231, 259, 272, 293, 310, 557, , 561
ESP10, 234, 260, 273, 295, 312, 560, , 564
ESP10, 216, 245, 257, 278, 297, 563, , 567
ESP10, 233, 261, 274, 292, 311, 567, , 571
ESP10, 232, 262, 275, 292, 312, 570, , 574
ESP10, 227, 258, 270, 288, 307, 573, , 577
ESP10, 225, 253, 262, 283, 300, 576, , 580
ESP10, 230, 258, 268, 289, 306, 579, , 583
ESP10, 227, 253, 263, 284, 304, 582, , 586
ESP10, 224, 248, 260, 278, 302, 585, , 589
ESP10, 219, 243, 255, 272, 299, 588, , 592
ESP10, 221, 245, 258, 276, 301, 592, , 596
ESP10, 219, 243, 257, 278, 298, 595, , 599
ESP10, 223, 243, 258, 279, 300, 598, , 602
ESP10, 225, 242, 257, 276, 297, 601, , 605
ESP10, 232, 245, 261, 278, 301, 604, , 608
ESP10, 231, 244, 259, 275, 298, 607, , 611
ESP10, 221, 237, 251, 268, 289, 610, , 614
ESP10, 217, 235, 250, 266, 286, 613, , 617
ESP10, 221, 240, 256, 273, 292, 616, , 620
ESP10, 220, 242, 256, 273, 292, 620, , 624
ESP10, 222, 246, 261, 278, 296, 623, , 627
ESP10, 224, 251, 265, 284, 300, 626, , 630
ESP10, 228, 255, 270, 288, 303, 629, , 633
ESP10, 236, 261, 276, 297, 309, 632, , 636
ESP10, 238, 264, 276, 297, 310, 635, , 639
ESP10, 237, 264, 276, 295, 309, 638, , 642
ESP10, 241, 270, 283, 299, 315, 641, , 645
ESP10, 239, 269, 286, 301, 315, 645, , 649
ESP10, 236, 266, 284, 300, 315, 648, , 652
ESP10, 237, 268, 284, 302, 315, 651, , 655
ESP10, 239, 274, 290, 305, 318, 654, , 658
ESP10, 238, 273, 287, 303, 317, 657, , 661
ESP10, 234, 267, 280, 297, 309, 660, , 664
ESP10, 231, 264, 278, 294, 305, 663, , 667
ESP10, 230, 264, 278, 294, 305, 666, , 670
ESP10, 234, 268, 283, 300, 311, 669, , 673
ESP10, 239, 271, 285, 302, 313, 673, , 677
ESP10, 237, 273, 282, 300, 309, 676, , 680
ESP10, 246, 280, 287, 306, 315, 679, , 683
ESP10, 249, 277, 286, 304, 313, 682, , 686
ESP10, 252, 280, 290, 307, 315, 685, , 689
ESP10, 248, 274, 287, 303, 310, 688, , 692
ESP10, 250, 276, 289, 306, 312, 691, , 695
ESP10, 252, 278, 293, 308, 315, 694, , 698
ESP10, 254, 280, 295, 311, 318, 697, , 701
ESP10, 257, 282, 297, 315, 320, 701, , 705
ESP10, 266, 291, 307, 323, 331, 704, , 708
ESP10, 266, 289, 306, 321, 331, 707, , 711
ESP10, 268, 291, 307, 322, 332, 710, , 714
ESP10, 268, 294, 306, 321, 333, 713, , 717
ESP10, 266, 292, 305, 319, 332, 716, , 720
ESP10, 267, 298, 309, 321, 333, 719, , 723
ESP10, 266, 297, 309, 320, 332, 722, , 726
ESP10, 267, 298, 309, 320, 332, 726, , 730
ESP10, 272, 302, 313, 326, 337, 729, , 733
ESP10, 276, 306, 318, 329, 341, 732, , 736
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|2026-05-02
PRWW1N_SQIN.ESPF10.csv|2026-05-02
PRWW1N_SQIN.ESPFM.csv|2026-05-02
APR-SEP
Commerce Home
|
NOAA
|
NWS Organization
|
NWRFC Site Map
|
Search
Freedom of Information Act
|
Privacy Policy
|
Information Quality
|
USA.gov
|
Career Opportunities
#FFF68F
#33CCFF
#404040
#660066
#F00007
#66CCFF
ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
