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Water Year
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COLUMBIA - ARROW LAKES (HUGH KEENLEYSIDE DAM)
(
ARDQ2
)
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
20697
21076
88
21968
23959
APR-JUL
16731
16820
91
16883
18539
JAN-SEP
22812
23192
90
24083
25830
JAN-JUL
18846
18935
93
18998
20410
OCT-SEP
27194
27574
95
28466
29024
Experimental
HEFS with 15 days EQPF
Ensemble:
2025-07-17
Issued:
2025-07-17
Hide Forecast
APR-SEP
20485
20931
87
22210
23959
APR-JUL
16564
16771
90
17260
18539
JAN-SEP
22601
23046
89
24325
25830
JAN-JUL
18679
18887
93
19376
20410
OCT-SEP
26983
27428
95
28707
29024
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-17
Issued:
2025-07-17
Hide Forecast
APR-SEP
20400
20777
87
21838
23959
APR-JUL
16467
16601
90
16938
18539
JAN-SEP
22515
22892
89
23953
25830
JAN-JUL
18583
18716
92
19054
20410
OCT-SEP
26897
27274
94
28335
29024
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 198, 264, 313, 352, 424, 70, , 74
ESP10, 203, 266, 315, 354, 426, 73, , 77
ESP10, 203, 269, 320, 355, 426, 75, , 79
ESP10, 196, 264, 322, 348, 420, 77, , 81
ESP10, 195, 263, 324, 345, 419, 80, , 84
ESP10, 195, 264, 325, 349, 426, 82, , 86
ESP10, 194, 263, 329, 348, 432, 84, , 88
ESP10, 195, 262, 329, 352, 433, 86, , 90
ESP10, 184, 252, 318, 342, 422, 89, , 93
ESP10, 182, 249, 320, 341, 424, 91, , 95
ESP10, 180, 243, 312, 337, 420, 93, , 97
ESP10, 179, 240, 309, 334, 415, 96, , 100
ESP10, 193, 258, 321, 351, 428, 98, , 102
ESP10, 191, 256, 322, 354, 425, 100, , 104
ESP10, 186, 253, 313, 346, 420, 103, , 107
ESP10, 177, 244, 303, 342, 410, 105, , 109
ESP10, 175, 241, 301, 345, 407, 107, , 111
ESP10, 172, 233, 294, 335, 398, 109, , 113
ESP10, 168, 230, 289, 335, 395, 112, , 116
ESP10, 168, 232, 287, 335, 395, 114, , 118
ESP10, 166, 230, 285, 333, 393, 116, , 120
ESP10, 174, 238, 297, 350, 401, 119, , 123
ESP10, 173, 233, 302, 348, 394, 121, , 125
ESP10, 181, 239, 310, 352, 401, 123, , 127
ESP10, 179, 238, 309, 350, 401, 126, , 130
ESP10, 182, 239, 313, 353, 401, 128, , 132
ESP10, 198, 252, 324, 372, 418, 130, , 134
ESP10, 217, 257, 335, 380, 424, 132, , 136
ESP10, 222, 264, 334, 378, 422, 135, , 139
ESP10, 231, 268, 333, 378, 421, 137, , 141
ESP10, 219, 254, 319, 365, 413, 139, , 143
ESP10, 217, 261, 315, 359, 413, 142, , 146
ESP10, 221, 269, 318, 367, 420, 144, , 148
ESP10, 222, 266, 313, 361, 418, 146, , 150
ESP10, 207, 253, 305, 350, 403, 149, , 153
ESP10, 209, 256, 310, 357, 401, 151, , 155
ESP10, 209, 254, 311, 355, 401, 153, , 157
ESP10, 196, 246, 304, 349, 389, 155, , 159
ESP10, 192, 241, 297, 343, 383, 158, , 162
ESP10, 199, 249, 304, 352, 393, 160, , 164
ESP10, 212, 265, 320, 364, 405, 162, , 166
ESP10, 214, 274, 319, 362, 404, 165, , 169
ESP10, 204, 264, 301, 343, 387, 167, , 171
ESP10, 209, 261, 308, 346, 390, 169, , 173
ESP10, 172, 227, 268, 312, 351, 172, , 176
ESP10, 179, 234, 273, 318, 355, 174, , 178
ESP10, 183, 249, 281, 323, 359, 176, , 180
ESP10, 196, 263, 299, 340, 381, 179, , 183
ESP10, 195, 263, 299, 343, 379, 181, , 185
ESP10, 201, 269, 307, 351, 390, 183, , 187
ESP10, 200, 263, 305, 351, 388, 185, , 189
ESP10, 207, 269, 309, 352, 389, 188, , 192
ESP10, 215, 279, 316, 358, 394, 190, , 194
ESP10, 215, 278, 319, 365, 390, 192, , 196
ESP10, 203, 271, 308, 353, 377, 195, , 199
ESP10, 209, 277, 312, 358, 384, 197, , 201
ESP10, 191, 265, 298, 345, 372, 199, , 203
ESP10, 193, 269, 300, 343, 381, 202, , 206
ESP10, 197, 271, 306, 343, 384, 204, , 208
ESP10, 205, 273, 310, 349, 391, 206, , 210
ESP10, 209, 278, 324, 351, 398, 208, , 212
ESP10, 209, 276, 321, 355, 399, 211, , 215
ESP10, 213, 284, 322, 358, 403, 213, , 217
ESP10, 203, 271, 317, 346, 404, 215, , 219
ESP10, 213, 282, 325, 357, 419, 218, , 222
ESP10, 221, 287, 332, 368, 424, 220, , 224
ESP10, 206, 273, 320, 356, 410, 222, , 226
ESP10, 210, 278, 325, 361, 413, 225, , 229
ESP10, 206, 274, 320, 363, 409, 227, , 231
ESP10, 202, 270, 313, 361, 401, 229, , 233
ESP10, 218, 285, 328, 375, 418, 231, , 235
ESP10, 218, 287, 329, 379, 420, 234, , 238
ESP10, 213, 286, 324, 376, 417, 236, , 240
ESP10, 200, 275, 312, 366, 410, 238, , 242
ESP10, 186, 264, 297, 355, 396, 241, , 245
ESP10, 175, 256, 288, 346, 389, 243, , 247
ESP10, 198, 276, 305, 371, 408, 245, , 249
ESP10, 206, 279, 306, 372, 414, 248, , 252
ESP10, 226, 296, 319, 385, 429, 250, , 254
ESP10, 217, 285, 312, 376, 421, 252, , 256
ESP10, 213, 277, 306, 371, 413, 254, , 258
ESP10, 214, 273, 310, 368, 412, 257, , 261
ESP10, 206, 270, 305, 364, 405, 259, , 263
ESP10, 213, 281, 315, 372, 411, 261, , 265
ESP10, 207, 275, 310, 364, 402, 264, , 268
ESP10, 225, 295, 333, 379, 418, 266, , 270
ESP10, 216, 286, 322, 369, 407, 268, , 272
ESP10, 224, 290, 325, 373, 410, 271, , 275
ESP10, 232, 291, 329, 371, 407, 273, , 277
ESP10, 239, 297, 336, 376, 411, 275, , 279
ESP10, 238, 297, 340, 379, 410, 278, , 282
ESP10, 223, 282, 323, 369, 393, 280, , 284
ESP10, 232, 291, 332, 377, 401, 282, , 286
ESP10, 244, 305, 342, 384, 414, 284, , 288
ESP10, 256, 304, 342, 383, 422, 289, , 293
ESP10, 256, 303, 344, 382, 425, 291, , 295
ESP10, 261, 303, 346, 384, 428, 294, , 298
ESP10, 267, 306, 349, 391, 431, 296, , 300
ESP10, 278, 314, 354, 399, 434, 298, , 302
ESP10, 280, 317, 359, 403, 438, 301, , 305
ESP10, 279, 314, 356, 403, 435, 303, , 307
ESP10, 280, 318, 355, 405, 434, 305, , 309
ESP10, 282, 316, 354, 402, 432, 307, , 311
ESP10, 284, 315, 356, 401, 436, 310, , 314
ESP10, 286, 320, 356, 407, 439, 312, , 316
ESP10, 298, 328, 367, 413, 447, 314, , 318
ESP10, 298, 333, 366, 415, 446, 317, , 321
ESP10, 299, 334, 369, 416, 452, 319, , 323
ESP10, 306, 346, 377, 424, 461, 321, , 325
ESP10, 313, 347, 378, 424, 463, 324, , 328
ESP10, 313, 344, 376, 426, 468, 326, , 330
ESP10, 310, 345, 374, 425, 467, 328, , 332
ESP10, 308, 347, 374, 421, 465, 330, , 334
ESP10, 308, 348, 376, 421, 465, 333, , 337
ESP10, 308, 349, 374, 419, 463, 335, , 339
ESP10, 302, 344, 371, 412, 458, 337, , 341
ESP10, 305, 349, 376, 419, 462, 340, , 344
ESP10, 301, 351, 373, 417, 459, 342, , 346
ESP10, 300, 356, 376, 417, 459, 344, , 348
ESP10, 303, 358, 381, 420, 460, 347, , 351
ESP10, 307, 357, 382, 427, 460, 349, , 353
ESP10, 303, 352, 378, 422, 457, 351, , 355
ESP10, 307, 350, 376, 419, 458, 353, , 357
ESP10, 323, 349, 376, 419, 460, 356, , 360
ESP10, 325, 350, 378, 418, 459, 358, , 362
ESP10, 326, 357, 382, 420, 460, 360, , 364
ESP10, 326, 360, 382, 418, 463, 363, , 367
ESP10, 322, 358, 378, 414, 456, 365, , 369
ESP10, 327, 363, 384, 420, 462, 367, , 371
ESP10, 327, 362, 380, 425, 460, 370, , 374
ESP10, 336, 371, 386, 437, 465, 372, , 376
ESP10, 343, 376, 392, 441, 467, 374, , 378
ESP10, 341, 377, 394, 442, 467, 377, , 381
ESP10, 338, 378, 394, 439, 464, 379, , 383
ESP10, 322, 367, 379, 427, 458, 381, , 385
ESP10, 315, 358, 373, 419, 448, 383, , 387
ESP10, 308, 351, 367, 412, 444, 386, , 390
ESP10, 311, 353, 371, 414, 446, 388, , 392
ESP10, 312, 355, 375, 417, 447, 390, , 394
ESP10, 317, 360, 377, 419, 450, 393, , 397
ESP10, 311, 356, 373, 415, 443, 395, , 399
ESP10, 311, 350, 367, 415, 440, 397, , 401
ESP10, 307, 341, 362, 406, 431, 400, , 404
ESP10, 311, 347, 366, 411, 436, 402, , 406
ESP10, 323, 358, 377, 419, 445, 404, , 408
ESP10, 331, 363, 380, 422, 447, 406, , 410
ESP10, 330, 367, 380, 420, 446, 409, , 413
ESP10, 331, 362, 376, 416, 440, 411, , 415
ESP10, 322, 353, 369, 409, 430, 413, , 417
ESP10, 314, 349, 360, 401, 418, 416, , 420
ESP10, 322, 354, 367, 407, 423, 418, , 422
ESP10, 324, 354, 374, 408, 424, 420, , 424
ESP10, 329, 358, 383, 414, 427, 423, , 427
ESP10, 333, 358, 382, 413, 425, 425, , 429
ESP10, 328, 355, 374, 407, 418, 427, , 431
ESP10, 317, 343, 362, 394, 406, 429, , 433
ESP10, 331, 351, 369, 401, 413, 432, , 436
ESP10, 334, 351, 373, 402, 416, 434, , 438
ESP10, 324, 340, 362, 392, 407, 436, , 440
ESP10, 316, 335, 355, 386, 401, 439, , 443
ESP10, 314, 329, 349, 381, 398, 441, , 445
ESP10, 310, 322, 345, 378, 392, 443, , 447
ESP10, 304, 314, 338, 372, 386, 446, , 450
ESP10, 297, 308, 333, 364, 380, 448, , 452
ESP10, 293, 301, 326, 356, 372, 450, , 454
ESP10, 283, 292, 316, 345, 363, 453, , 457
ESP10, 277, 289, 310, 335, 357, 455, , 459
ESP10, 290, 300, 322, 345, 365, 457, , 461
ESP10, 289, 304, 323, 344, 364, 459, , 463
ESP10, 281, 299, 315, 338, 354, 462, , 466
ESP10, 278, 298, 315, 336, 350, 464, , 468
ESP10, 276, 294, 312, 334, 348, 466, , 470
ESP10, 269, 283, 301, 325, 336, 469, , 473
ESP10, 268, 284, 300, 325, 336, 471, , 475
ESP10, 264, 276, 295, 316, 334, 473, , 477
ESP10, 275, 286, 306, 326, 345, 476, , 480
ESP10, 277, 287, 311, 326, 347, 478, , 482
ESP10, 298, 308, 331, 351, 368, 480, , 484
ESP10, 305, 320, 339, 358, 375, 482, , 486
ESP10, 308, 323, 341, 361, 380, 485, , 489
ESP10, 300, 315, 335, 354, 372, 487, , 491
ESP10, 323, 340, 362, 380, 395, 489, , 493
ESP10, 315, 333, 356, 372, 390, 492, , 496
ESP10, 314, 329, 354, 374, 389, 494, , 498
ESP10, 315, 331, 356, 375, 389, 496, , 500
ESP10, 317, 333, 359, 376, 390, 499, , 503
ESP10, 319, 334, 360, 378, 393, 501, , 505
ESP10, 314, 330, 354, 374, 387, 503, , 507
ESP10, 315, 332, 358, 376, 389, 505, , 509
ESP10, 307, 324, 350, 369, 382, 508, , 512
ESP10, 310, 327, 353, 372, 384, 510, , 514
ESP10, 308, 325, 352, 371, 382, 512, , 516
ESP10, 305, 327, 350, 371, 378, 515, , 519
ESP10, 311, 332, 355, 375, 382, 517, , 521
ESP10, 317, 338, 361, 381, 390, 519, , 523
ESP10, 317, 336, 358, 378, 386, 522, , 526
ESP10, 318, 334, 359, 378, 387, 524, , 528
ESP10, 322, 342, 360, 381, 397, 526, , 530
ESP10, 325, 347, 363, 385, 398, 528, , 532
ESP10, 323, 345, 362, 384, 395, 531, , 535
ESP10, 324, 346, 362, 385, 396, 533, , 537
ESP10, 336, 361, 375, 399, 408, 535, , 539
ESP10, 351, 375, 386, 409, 422, 538, , 542
ESP10, 350, 375, 388, 409, 426, 540, , 544
ESP10, 350, 374, 389, 409, 426, 542, , 546
ESP10, 349, 371, 389, 406, 423, 545, , 549
ESP10, 349, 370, 387, 404, 421, 547, , 551
ESP10, 351, 370, 387, 404, 420, 549, , 553
ESP10, 348, 373, 385, 405, 418, 552, , 556
ESP10, 346, 371, 385, 404, 416, 554, , 558
ESP10, 349, 375, 389, 407, 421, 556, , 560
ESP10, 348, 371, 384, 403, 416, 558, , 562
ESP10, 347, 370, 384, 405, 416, 561, , 565
ESP10, 339, 365, 376, 398, 409, 563, , 567
ESP10, 339, 365, 378, 398, 409, 565, , 569
ESP10, 330, 357, 371, 391, 401, 568, , 572
ESP10, 335, 362, 379, 397, 406, 570, , 574
ESP10, 343, 366, 384, 401, 412, 572, , 576
ESP10, 335, 358, 377, 394, 405, 575, , 579
ESP10, 350, 372, 391, 407, 417, 577, , 581
ESP10, 352, 374, 393, 407, 419, 579, , 583
ESP10, 354, 378, 395, 411, 421, 581, , 585
ESP10, 356, 381, 398, 415, 425, 584, , 588
ESP10, 355, 381, 398, 415, 425, 586, , 590
ESP10, 357, 388, 401, 417, 428, 588, , 592
ESP10, 358, 388, 402, 421, 431, 591, , 595
ESP10, 359, 385, 401, 422, 430, 593, , 597
ESP10, 356, 381, 398, 417, 426, 595, , 599
ESP10, 353, 377, 393, 414, 423, 598, , 602
ESP10, 352, 376, 393, 413, 423, 600, , 604
ESP10, 362, 384, 400, 418, 430, 602, , 606
ESP10, 359, 382, 396, 414, 426, 604, , 608
ESP10, 367, 391, 405, 422, 433, 607, , 611
ESP10, 364, 385, 402, 417, 428, 609, , 613
ESP10, 362, 383, 402, 417, 426, 611, , 615
ESP10, 351, 373, 391, 409, 415, 614, , 618
ESP10, 352, 375, 389, 405, 417, 616, , 620
ESP10, 352, 370, 382, 398, 411, 618, , 622
ESP10, 359, 377, 388, 405, 418, 621, , 625
ESP10, 371, 383, 394, 411, 423, 623, , 627
ESP10, 375, 385, 397, 414, 424, 625, , 629
ESP10, 373, 383, 399, 413, 423, 627, , 631
ESP10, 371, 381, 396, 412, 420, 630, , 634
ESP10, 364, 371, 387, 404, 414, 632, , 636
ESP10, 370, 380, 395, 409, 420, 634, , 638
ESP10, 363, 374, 390, 406, 416, 637, , 641
ESP10, 360, 373, 389, 405, 414, 639, , 643
ESP10, 359, 369, 386, 400, 409, 641, , 645
ESP10, 365, 375, 394, 407, 415, 644, , 648
ESP10, 364, 379, 396, 405, 413, 667, , 671
ESP10, 362, 378, 395, 406, 412, 669, , 673
ESP10, 367, 380, 396, 406, 412, 671, , 675
ESP10, 367, 381, 397, 406, 412, 674, , 678
ESP10, 368, 384, 398, 409, 414, 676, , 680
ESP10, 372, 387, 399, 410, 414, 678, , 682
ESP10, 379, 398, 409, 418, 421, 680, , 684
ESP10, 377, 395, 407, 416, 420, 683, , 687
ESP10, 374, 392, 407, 413, 417, 685, , 689
ESP10, 377, 395, 409, 415, 418, 687, , 691
ESP10, 375, 394, 407, 412, 416, 690, , 694
ESP10, 374, 391, 405, 411, 413, 692, , 696
ESP10, 384, 396, 413, 417, 421, 694, , 698
ESP10, 385, 395, 411, 415, 420, 697, , 701
ESP10, 388, 397, 413, 418, 421, 699, , 703
ESP10, 384, 394, 409, 416, 418, 701, , 705
ESP10, 388, 397, 413, 418, 420, 703, , 707
ESP10, 385, 396, 410, 414, 416, 706, , 710
ESP10, 382, 394, 407, 412, 414, 708, , 712
ESP10, 383, 397, 406, 412, 415, 710, , 714
ESP10, 381, 396, 404, 411, 413, 713, , 717
ESP10, 384, 399, 407, 413, 416, 715, , 719
ESP10, 382, 394, 404, 410, 412, 717, , 721
ESP10, 373, 386, 395, 401, 405, 720, , 724
ESP10, 376, 391, 399, 405, 410, 722, , 726
ESP10, 372, 387, 397, 402, 407, 724, , 728
ESP10, 360, 378, 388, 393, 398, 726, , 730
ESP10, 355, 374, 384, 388, 393, 729, , 733
ESP10, 361, 375, 384, 386, 393, 731, , 735
ESP10, 359, 372, 381, 384, 390, 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/ARDQ2IN_SQIN.ESPF10.csv
ARDQ2IN_SQIN.ESPF0.csv|2025-07-17
ARDQ2IN_SQIN.ESPF10.csv|2025-07-17
ARDQ2IN_SQIN.ESPFM.csv|2025-07-17
APR-SEP
COLUMBIA - ARROW LAKES (HUGH KEENLEYSIDE DAM)
(
ARDQ2
)
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
18703
23772
99
28604
23959
APR-JUL
14587
18222
98
21790
18539
JAN-SEP
20422
25570
99
30353
25830
JAN-JUL
16295
20469
100
23556
20410
OCT-SEP
23092
28606
99
33215
29024
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/ARDQ2IN_SQIN.ESPF10.csv
ARDQ2IN_SQIN.ESPF0.csv|2025-07-17
ARDQ2IN_SQIN.ESPF10.csv|2025-07-17
ARDQ2IN_SQIN.ESPFM.csv|2025-07-17
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
