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Water Year
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COLUMBIA - ARROW LAKES (HUGH KEENLEYSIDE DAM)
(
ARDQ2
)
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
23953
24877
104
26433
23959
APR-JUL
19184
19618
106
20162
18539
JAN-SEP
26786
27711
107
29267
25830
JAN-JUL
22017
22451
110
22996
20410
OCT-SEP
29926
30851
106
32407
29024
Experimental
HEFS with 15 days EQPF
Ensemble:
2026-06-23
Issued:
2026-06-23
Hide Forecast
APR-SEP
24397
25226
105
26789
23959
APR-JUL
19410
19959
108
20541
18539
JAN-SEP
27231
28060
109
29623
25830
JAN-JUL
22244
22793
112
23375
20410
OCT-SEP
30370
31200
107
32763
29024
Reference
ESP with 0 Days QPF
Ensemble:
2026-06-23
Issued:
2026-06-23
Hide Forecast
APR-SEP
24336
25307
106
26825
23959
APR-JUL
19338
19997
108
20677
18539
JAN-SEP
27170
28141
109
29658
25830
JAN-JUL
22172
22831
112
23511
20410
OCT-SEP
30310
31281
108
32798
29024
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 244, 302, 342, 378, 443, 71, , 75
ESP10, 240, 297, 338, 374, 438, 73, , 77
ESP10, 243, 299, 343, 376, 439, 76, , 80
ESP10, 240, 299, 347, 375, 436, 78, , 82
ESP10, 234, 295, 345, 369, 431, 81, , 85
ESP10, 234, 295, 347, 371, 438, 83, , 87
ESP10, 238, 299, 355, 373, 448, 86, , 90
ESP10, 239, 300, 355, 378, 451, 88, , 92
ESP10, 243, 301, 358, 382, 453, 91, , 95
ESP10, 239, 298, 357, 379, 454, 93, , 97
ESP10, 244, 299, 358, 383, 456, 96, , 100
ESP10, 240, 296, 353, 378, 450, 98, , 102
ESP10, 228, 287, 342, 370, 440, 101, , 105
ESP10, 234, 292, 349, 378, 444, 103, , 107
ESP10, 238, 297, 350, 379, 447, 106, , 110
ESP10, 230, 288, 339, 375, 437, 108, , 112
ESP10, 225, 283, 338, 373, 432, 111, , 115
ESP10, 244, 296, 352, 387, 445, 113, , 117
ESP10, 243, 297, 349, 388, 443, 116, , 120
ESP10, 241, 294, 346, 384, 440, 118, , 122
ESP10, 234, 289, 340, 378, 434, 121, , 125
ESP10, 221, 279, 330, 376, 424, 123, , 127
ESP10, 229, 281, 339, 379, 425, 126, , 130
ESP10, 230, 281, 338, 378, 426, 128, , 132
ESP10, 231, 283, 340, 379, 428, 131, , 135
ESP10, 246, 295, 360, 393, 439, 133, , 137
ESP10, 244, 292, 356, 394, 439, 136, , 140
ESP10, 253, 290, 356, 393, 437, 138, , 142
ESP10, 247, 290, 345, 384, 426, 141, , 145
ESP10, 249, 284, 337, 377, 419, 143, , 147
ESP10, 252, 287, 342, 379, 425, 146, , 150
ESP10, 254, 295, 341, 379, 430, 148, , 152
ESP10, 253, 298, 339, 383, 432, 151, , 155
ESP10, 264, 305, 344, 387, 439, 153, , 157
ESP10, 267, 307, 352, 392, 441, 156, , 160
ESP10, 261, 303, 350, 391, 433, 158, , 162
ESP10, 260, 301, 352, 390, 432, 161, , 165
ESP10, 251, 295, 345, 385, 423, 163, , 167
ESP10, 263, 308, 354, 396, 433, 166, , 170
ESP10, 256, 302, 348, 393, 428, 168, , 172
ESP10, 249, 299, 342, 384, 421, 171, , 175
ESP10, 248, 301, 341, 380, 418, 173, , 177
ESP10, 270, 323, 355, 394, 432, 176, , 180
ESP10, 280, 328, 365, 401, 439, 178, , 182
ESP10, 272, 321, 356, 395, 430, 181, , 185
ESP10, 281, 327, 363, 404, 434, 183, , 187
ESP10, 275, 325, 359, 399, 428, 186, , 190
ESP10, 274, 325, 363, 401, 435, 188, , 192
ESP10, 265, 318, 357, 396, 426, 191, , 195
ESP10, 264, 319, 357, 397, 429, 193, , 197
ESP10, 275, 329, 366, 406, 440, 196, , 200
ESP10, 271, 321, 359, 398, 431, 198, , 202
ESP10, 269, 321, 358, 396, 428, 201, , 205
ESP10, 279, 331, 368, 409, 433, 204, , 208
ESP10, 275, 330, 367, 407, 429, 206, , 210
ESP10, 269, 331, 361, 401, 425, 209, , 213
ESP10, 266, 331, 360, 401, 427, 211, , 215
ESP10, 267, 333, 359, 398, 433, 214, , 218
ESP10, 264, 328, 361, 393, 430, 216, , 220
ESP10, 264, 323, 356, 389, 429, 219, , 223
ESP10, 252, 313, 349, 377, 421, 221, , 225
ESP10, 253, 312, 349, 380, 422, 224, , 228
ESP10, 255, 317, 349, 382, 423, 226, , 230
ESP10, 247, 306, 345, 371, 425, 229, , 233
ESP10, 241, 302, 339, 367, 423, 231, , 235
ESP10, 242, 301, 340, 370, 421, 234, , 238
ESP10, 247, 307, 347, 377, 426, 236, , 240
ESP10, 233, 294, 335, 368, 412, 239, , 243
ESP10, 205, 266, 308, 346, 385, 241, , 245
ESP10, 203, 264, 305, 347, 383, 244, , 248
ESP10, 208, 269, 311, 353, 390, 246, , 250
ESP10, 215, 278, 319, 362, 398, 249, , 253
ESP10, 214, 283, 318, 362, 398, 251, , 255
ESP10, 205, 274, 309, 354, 394, 254, , 258
ESP10, 198, 270, 302, 350, 388, 256, , 260
ESP10, 189, 264, 293, 343, 383, 259, , 263
ESP10, 188, 263, 289, 346, 380, 261, , 265
ESP10, 188, 257, 283, 340, 377, 264, , 268
ESP10, 178, 241, 266, 326, 363, 266, , 270
ESP10, 173, 234, 263, 320, 361, 269, , 273
ESP10, 181, 238, 267, 324, 364, 271, , 275
ESP10, 175, 232, 265, 315, 355, 274, , 278
ESP10, 182, 243, 273, 327, 362, 276, , 280
ESP10, 185, 253, 278, 333, 365, 279, , 283
ESP10, 183, 249, 280, 330, 360, 281, , 285
ESP10, 178, 243, 280, 323, 354, 284, , 288
ESP10, 182, 245, 280, 324, 359, 286, , 290
ESP10, 185, 246, 279, 326, 358, 289, , 293
ESP10, 191, 245, 282, 323, 355, 291, , 295
ESP10, 195, 249, 285, 324, 356, 294, , 298
ESP10, 192, 246, 286, 323, 352, 296, , 300
ESP10, 194, 245, 283, 326, 349, 299, , 303
ESP10, 193, 244, 283, 324, 348, 301, , 305
ESP10, 198, 251, 287, 325, 352, 304, , 308
ESP10, 198, 244, 283, 318, 352, 306, , 310
ESP10, 202, 243, 281, 320, 356, 309, , 313
ESP10, 196, 237, 276, 315, 356, 311, , 315
ESP10, 191, 230, 270, 309, 350, 314, , 318
ESP10, 190, 225, 265, 308, 348, 316, , 320
ESP10, 189, 221, 258, 304, 341, 319, , 323
ESP10, 183, 218, 256, 301, 339, 321, , 325
ESP10, 185, 221, 254, 303, 338, 324, , 328
ESP10, 184, 222, 253, 301, 336, 326, , 330
ESP10, 187, 222, 261, 300, 336, 329, , 333
ESP10, 186, 221, 257, 297, 337, 331, , 335
ESP10, 189, 223, 257, 299, 338, 334, , 338
ESP10, 193, 224, 258, 300, 340, 337, , 341
ESP10, 194, 229, 259, 307, 340, 339, , 343
ESP10, 195, 230, 264, 310, 346, 342, , 346
ESP10, 200, 238, 270, 313, 351, 344, , 348
ESP10, 209, 240, 276, 316, 356, 347, , 351
ESP10, 214, 245, 279, 319, 364, 349, , 353
ESP10, 212, 244, 278, 320, 364, 352, , 356
ESP10, 216, 250, 284, 324, 368, 354, , 358
ESP10, 215, 251, 284, 323, 366, 357, , 361
ESP10, 206, 244, 275, 313, 356, 359, , 363
ESP10, 213, 255, 281, 317, 361, 362, , 366
ESP10, 214, 256, 283, 323, 363, 364, , 368
ESP10, 215, 262, 283, 326, 363, 367, , 371
ESP10, 212, 261, 286, 325, 361, 369, , 373
ESP10, 209, 259, 283, 323, 357, 372, , 376
ESP10, 201, 247, 270, 317, 346, 374, , 378
ESP10, 192, 238, 261, 310, 338, 377, , 381
ESP10, 207, 245, 271, 316, 347, 379, , 383
ESP10, 206, 244, 268, 312, 346, 382, , 386
ESP10, 209, 241, 269, 309, 343, 384, , 388
ESP10, 205, 241, 267, 306, 340, 387, , 391
ESP10, 218, 253, 277, 314, 353, 389, , 393
ESP10, 224, 257, 281, 315, 354, 392, , 396
ESP10, 213, 250, 273, 308, 345, 394, , 398
ESP10, 218, 255, 274, 314, 346, 397, , 401
ESP10, 220, 257, 276, 319, 346, 399, , 403
ESP10, 216, 252, 269, 313, 338, 402, , 406
ESP10, 219, 259, 274, 317, 342, 404, , 408
ESP10, 218, 259, 277, 316, 341, 407, , 411
ESP10, 207, 247, 267, 308, 337, 409, , 413
ESP10, 207, 245, 265, 309, 335, 412, , 416
ESP10, 213, 251, 272, 316, 339, 414, , 418
ESP10, 205, 243, 265, 307, 331, 417, , 421
ESP10, 209, 249, 271, 315, 337, 419, , 423
ESP10, 202, 245, 262, 306, 328, 422, , 426
ESP10, 208, 250, 270, 312, 334, 424, , 428
ESP10, 206, 245, 267, 312, 330, 427, , 431
ESP10, 214, 251, 270, 315, 335, 429, , 433
ESP10, 210, 247, 268, 310, 331, 432, , 436
ESP10, 211, 248, 266, 307, 327, 434, , 438
ESP10, 215, 249, 266, 310, 327, 437, , 441
ESP10, 205, 241, 255, 301, 317, 439, , 443
ESP10, 200, 230, 247, 291, 306, 442, , 446
ESP10, 188, 216, 236, 278, 292, 444, , 448
ESP10, 182, 219, 230, 272, 284, 447, , 451
ESP10, 178, 214, 229, 266, 280, 449, , 453
ESP10, 170, 204, 226, 257, 271, 452, , 456
ESP10, 166, 200, 228, 255, 267, 454, , 458
ESP10, 165, 196, 224, 251, 262, 457, , 461
ESP10, 167, 201, 226, 250, 262, 459, , 463
ESP10, 156, 189, 213, 238, 250, 462, , 466
ESP10, 165, 187, 208, 235, 248, 464, , 468
ESP10, 153, 179, 198, 224, 238, 467, , 471
ESP10, 158, 181, 202, 229, 241, 469, , 473
ESP10, 154, 177, 195, 224, 237, 472, , 476
ESP10, 147, 167, 186, 219, 229, 475, , 479
ESP10, 133, 154, 175, 205, 215, 477, , 481
ESP10, 151, 167, 188, 218, 232, 480, , 484
ESP10, 145, 161, 183, 211, 226, 482, , 486
ESP10, 147, 160, 181, 207, 222, 485, , 489
ESP10, 149, 162, 184, 210, 225, 487, , 491
ESP10, 155, 169, 190, 213, 228, 490, , 494
ESP10, 152, 166, 185, 208, 226, 492, , 496
ESP10, 153, 166, 187, 206, 223, 495, , 499
ESP10, 151, 168, 187, 206, 220, 497, , 501
ESP10, 162, 180, 198, 218, 230, 500, , 504
ESP10, 164, 178, 198, 217, 229, 502, , 506
ESP10, 164, 176, 195, 217, 226, 505, , 509
ESP10, 158, 170, 189, 210, 219, 507, , 511
ESP10, 163, 171, 192, 211, 224, 510, , 514
ESP10, 174, 184, 204, 223, 235, 512, , 516
ESP10, 174, 185, 206, 223, 236, 515, , 519
ESP10, 177, 189, 211, 230, 242, 517, , 521
ESP10, 177, 190, 212, 231, 242, 520, , 524
ESP10, 186, 203, 222, 241, 256, 522, , 526
ESP10, 191, 205, 225, 244, 259, 525, , 529
ESP10, 188, 207, 224, 243, 257, 527, , 531
ESP10, 190, 210, 229, 245, 261, 530, , 534
ESP10, 193, 207, 230, 246, 259, 532, , 536
ESP10, 192, 206, 229, 246, 258, 535, , 539
ESP10, 188, 201, 224, 242, 252, 537, , 541
ESP10, 186, 198, 224, 240, 249, 540, , 544
ESP10, 185, 198, 222, 240, 248, 542, , 546
ESP10, 179, 194, 218, 235, 245, 545, , 549
ESP10, 178, 193, 217, 233, 243, 547, , 551
ESP10, 176, 190, 215, 232, 240, 550, , 554
ESP10, 182, 196, 224, 238, 245, 552, , 556
ESP10, 184, 205, 225, 241, 247, 555, , 559
ESP10, 184, 205, 225, 242, 248, 557, , 561
ESP10, 185, 205, 224, 241, 249, 560, , 564
ESP10, 190, 209, 228, 244, 253, 562, , 566
ESP10, 188, 205, 226, 243, 251, 565, , 569
ESP10, 187, 206, 224, 241, 257, 567, , 571
ESP10, 188, 209, 226, 243, 256, 570, , 574
ESP10, 192, 213, 229, 249, 260, 572, , 576
ESP10, 198, 218, 234, 254, 264, 575, , 579
ESP10, 200, 219, 236, 254, 265, 577, , 581
ESP10, 211, 232, 247, 264, 279, 580, , 584
ESP10, 214, 235, 248, 265, 283, 582, , 586
ESP10, 214, 235, 249, 266, 284, 585, , 589
ESP10, 212, 233, 250, 265, 283, 587, , 591
ESP10, 214, 233, 249, 265, 284, 590, , 594
ESP10, 221, 238, 254, 269, 287, 592, , 596
ESP10, 220, 239, 253, 267, 286, 595, , 599
ESP10, 221, 240, 256, 270, 286, 597, , 601
ESP10, 223, 243, 260, 273, 289, 600, , 604
ESP10, 228, 246, 260, 274, 290, 602, , 606
ESP10, 227, 247, 261, 276, 289, 605, , 609
ESP10, 226, 247, 259, 278, 290, 608, , 612
ESP10, 225, 248, 261, 278, 292, 610, , 614
ESP10, 227, 249, 263, 281, 294, 613, , 617
ESP10, 227, 250, 266, 281, 293, 615, , 619
ESP10, 227, 249, 266, 280, 293, 618, , 622
ESP10, 227, 252, 267, 280, 293, 620, , 624
ESP10, 224, 248, 265, 277, 289, 623, , 627
ESP10, 222, 246, 263, 275, 289, 625, , 629
ESP10, 217, 242, 259, 274, 285, 628, , 632
ESP10, 213, 239, 257, 272, 285, 630, , 634
ESP10, 215, 241, 259, 275, 286, 633, , 637
ESP10, 214, 242, 257, 274, 284, 635, , 639
ESP10, 210, 237, 253, 271, 282, 638, , 642
ESP10, 219, 245, 260, 277, 287, 640, , 644
ESP10, 220, 245, 263, 278, 288, 643, , 647
ESP10, 229, 254, 272, 287, 299, 645, , 649
ESP10, 227, 250, 269, 284, 296, 648, , 652
ESP10, 224, 246, 264, 278, 291, 650, , 654
ESP10, 225, 248, 266, 277, 291, 653, , 657
ESP10, 224, 247, 265, 277, 289, 655, , 659
ESP10, 228, 250, 267, 280, 291, 658, , 662
ESP10, 218, 240, 258, 270, 280, 660, , 664
ESP10, 223, 245, 264, 277, 285, 663, , 667
ESP10, 226, 244, 260, 273, 284, 665, , 669
ESP10, 236, 252, 269, 284, 293, 668, , 672
ESP10, 227, 243, 260, 275, 285, 670, , 674
ESP10, 228, 239, 256, 273, 285, 673, , 677
ESP10, 225, 237, 253, 271, 281, 675, , 679
ESP10, 232, 241, 259, 276, 287, 678, , 682
ESP10, 230, 240, 257, 274, 284, 680, , 684
ESP10, 232, 243, 259, 275, 288, 683, , 687
ESP10, 240, 251, 267, 281, 293, 685, , 689
ESP10, 244, 255, 274, 288, 297, 688, , 692
ESP10, 242, 254, 274, 287, 297, 690, , 694
ESP10, 238, 252, 271, 284, 292, 693, , 697
ESP10, 235, 249, 270, 283, 290, 695, , 699
ESP10, 251, 264, 283, 298, 303, 698, , 702
ESP10, 252, 265, 284, 298, 307, 700, , 704
ESP10, 261, 275, 292, 305, 315, 703, , 707
ESP10, 257, 271, 288, 302, 311, 705, , 709
ESP10, 255, 270, 289, 302, 309, 708, , 712
ESP10, 256, 271, 291, 302, 310, 710, , 714
ESP10, 258, 276, 294, 305, 311, 713, , 717
ESP10, 252, 269, 288, 299, 305, 715, , 719
ESP10, 252, 269, 289, 299, 305, 718, , 722
ESP10, 257, 275, 293, 305, 310, 720, , 724
ESP10, 258, 278, 294, 307, 313, 723, , 727
ESP10, 260, 280, 292, 306, 312, 725, , 729
ESP10, 262, 280, 297, 307, 313, 728, , 732
ESP10, 256, 276, 293, 303, 310, 730, , 734
ESP10, 279, 296, 312, 321, 332, 733, , 737
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Data Files
/chpsesp/ensemble/natural/ARDQ2IN_SQIN.ESPF10.csv
ARDQ2IN_SQIN.ESPF0.csv|2026-06-23
ARDQ2IN_SQIN.ESPF10.csv|2026-06-23
ARDQ2IN_SQIN.ESPFM.csv|2026-06-23
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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