Choose Date:
Archive:
Water Year
Loading...
COLUMBIA - ARROW LAKES (HUGH KEENLEYSIDE DAM)
(
ARDQ2
)
Forecasts for Water Year
2025
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
19845
20312
84
21257
24059
APR-JUL
16174
16263
87
16382
18779
JAN-SEP
21975
22442
86
23387
25978
JAN-JUL
18303
18392
89
18512
20698
OCT-SEP
26316
26783
92
27728
29084
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
APR-SEP
20153
20395
85
21545
24059
APR-JUL
16209
16454
88
16832
18779
JAN-SEP
22283
22524
87
23675
25978
JAN-JUL
18339
18583
90
18962
20698
OCT-SEP
26624
26865
92
28016
29084
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
APR-SEP
19956
20302
84
21385
24059
APR-JUL
16123
16376
87
16760
18779
JAN-SEP
22085
22431
86
23514
25978
JAN-JUL
18253
18506
89
18889
20698
OCT-SEP
26426
26772
92
27855
29084
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 200, 266, 315, 354, 425, 70, , 74
ESP10, 205, 268, 316, 356, 427, 73, , 77
ESP10, 205, 271, 321, 356, 427, 75, , 79
ESP10, 198, 266, 323, 349, 421, 77, , 81
ESP10, 197, 265, 325, 346, 420, 80, , 84
ESP10, 197, 266, 327, 351, 427, 82, , 86
ESP10, 197, 265, 330, 350, 433, 84, , 88
ESP10, 197, 264, 331, 353, 434, 87, , 91
ESP10, 187, 254, 319, 344, 423, 89, , 93
ESP10, 184, 251, 321, 342, 425, 91, , 95
ESP10, 182, 245, 314, 339, 421, 94, , 98
ESP10, 181, 242, 310, 335, 416, 96, , 100
ESP10, 195, 260, 323, 352, 429, 98, , 102
ESP10, 193, 258, 324, 355, 426, 101, , 105
ESP10, 188, 255, 315, 347, 421, 103, , 107
ESP10, 180, 245, 304, 343, 411, 105, , 109
ESP10, 178, 243, 303, 347, 408, 108, , 112
ESP10, 174, 235, 295, 337, 399, 110, , 114
ESP10, 171, 231, 291, 336, 396, 113, , 117
ESP10, 171, 234, 289, 337, 396, 115, , 119
ESP10, 168, 232, 286, 334, 394, 117, , 121
ESP10, 176, 240, 298, 352, 402, 120, , 124
ESP10, 176, 235, 304, 349, 395, 122, , 126
ESP10, 183, 241, 312, 353, 402, 124, , 128
ESP10, 182, 240, 310, 351, 402, 127, , 131
ESP10, 185, 241, 315, 355, 402, 129, , 133
ESP10, 200, 254, 325, 374, 419, 131, , 135
ESP10, 220, 259, 337, 381, 425, 134, , 138
ESP10, 224, 266, 335, 380, 423, 136, , 140
ESP10, 234, 270, 334, 379, 422, 138, , 142
ESP10, 221, 256, 321, 366, 414, 141, , 145
ESP10, 219, 263, 316, 360, 414, 143, , 147
ESP10, 223, 271, 320, 368, 421, 145, , 149
ESP10, 224, 268, 314, 362, 419, 148, , 152
ESP10, 209, 255, 307, 351, 404, 150, , 154
ESP10, 211, 258, 312, 358, 402, 152, , 156
ESP10, 211, 256, 313, 356, 402, 155, , 159
ESP10, 199, 248, 306, 351, 390, 157, , 161
ESP10, 195, 243, 299, 345, 385, 159, , 163
ESP10, 202, 251, 306, 353, 394, 162, , 166
ESP10, 215, 267, 322, 365, 406, 164, , 168
ESP10, 217, 276, 321, 363, 405, 166, , 170
ESP10, 206, 266, 303, 344, 388, 169, , 173
ESP10, 211, 263, 310, 347, 391, 171, , 175
ESP10, 174, 229, 270, 313, 353, 173, , 177
ESP10, 182, 236, 275, 320, 356, 176, , 180
ESP10, 185, 251, 283, 325, 360, 178, , 182
ESP10, 199, 265, 301, 341, 382, 180, , 184
ESP10, 197, 265, 301, 344, 380, 183, , 187
ESP10, 203, 271, 308, 353, 391, 185, , 189
ESP10, 202, 265, 307, 352, 389, 187, , 191
ESP10, 209, 270, 310, 353, 390, 190, , 194
ESP10, 217, 281, 317, 359, 395, 192, , 196
ESP10, 217, 279, 320, 366, 391, 195, , 199
ESP10, 205, 272, 309, 354, 378, 197, , 201
ESP10, 211, 279, 314, 359, 385, 199, , 203
ESP10, 194, 267, 299, 346, 373, 202, , 206
ESP10, 196, 270, 302, 344, 382, 204, , 208
ESP10, 199, 273, 307, 345, 385, 206, , 210
ESP10, 208, 275, 311, 350, 392, 209, , 213
ESP10, 211, 280, 325, 352, 399, 211, , 215
ESP10, 212, 277, 323, 356, 399, 213, , 217
ESP10, 215, 286, 323, 360, 403, 216, , 220
ESP10, 205, 273, 318, 348, 405, 218, , 222
ESP10, 215, 284, 327, 358, 420, 220, , 224
ESP10, 223, 288, 333, 369, 425, 223, , 227
ESP10, 209, 275, 322, 357, 411, 225, , 229
ESP10, 212, 280, 326, 362, 414, 227, , 231
ESP10, 209, 276, 321, 364, 410, 230, , 234
ESP10, 205, 272, 315, 362, 402, 232, , 236
ESP10, 220, 287, 329, 376, 419, 234, , 238
ESP10, 220, 288, 330, 380, 421, 237, , 241
ESP10, 216, 288, 326, 377, 418, 239, , 243
ESP10, 203, 277, 313, 367, 411, 241, , 245
ESP10, 188, 266, 299, 356, 397, 244, , 248
ESP10, 178, 258, 290, 347, 390, 246, , 250
ESP10, 201, 278, 306, 372, 409, 248, , 252
ESP10, 209, 281, 307, 373, 415, 251, , 255
ESP10, 228, 297, 320, 386, 429, 253, , 257
ESP10, 219, 287, 313, 377, 422, 255, , 259
ESP10, 215, 279, 308, 372, 414, 258, , 262
ESP10, 216, 275, 312, 369, 413, 260, , 264
ESP10, 209, 272, 306, 365, 405, 262, , 266
ESP10, 215, 284, 317, 373, 412, 265, , 269
ESP10, 209, 277, 312, 365, 403, 267, , 271
ESP10, 227, 297, 335, 380, 419, 269, , 273
ESP10, 219, 288, 323, 370, 408, 272, , 276
ESP10, 227, 292, 327, 375, 411, 274, , 278
ESP10, 234, 293, 330, 373, 408, 276, , 280
ESP10, 242, 299, 338, 377, 412, 279, , 283
ESP10, 241, 299, 341, 380, 411, 281, , 285
ESP10, 226, 284, 324, 371, 394, 284, , 288
ESP10, 234, 294, 333, 378, 402, 286, , 290
ESP10, 246, 307, 343, 385, 415, 288, , 292
ESP10, 258, 306, 344, 384, 423, 293, , 297
ESP10, 258, 305, 346, 383, 426, 295, , 299
ESP10, 263, 305, 347, 385, 429, 298, , 302
ESP10, 269, 308, 350, 393, 431, 300, , 304
ESP10, 280, 316, 355, 400, 434, 302, , 306
ESP10, 282, 319, 360, 404, 438, 305, , 309
ESP10, 281, 316, 357, 404, 436, 307, , 311
ESP10, 282, 319, 356, 406, 434, 309, , 313
ESP10, 283, 318, 356, 403, 433, 312, , 316
ESP10, 286, 317, 357, 402, 437, 314, , 318
ESP10, 288, 322, 357, 409, 440, 316, , 320
ESP10, 300, 329, 369, 414, 448, 319, , 323
ESP10, 300, 335, 368, 416, 447, 321, , 325
ESP10, 300, 336, 370, 417, 453, 323, , 327
ESP10, 308, 348, 378, 425, 462, 326, , 330
ESP10, 315, 348, 379, 425, 464, 328, , 332
ESP10, 315, 345, 377, 427, 468, 330, , 334
ESP10, 312, 346, 375, 426, 468, 333, , 337
ESP10, 310, 349, 375, 422, 466, 335, , 339
ESP10, 310, 350, 377, 422, 466, 337, , 341
ESP10, 309, 351, 376, 420, 464, 340, , 344
ESP10, 304, 346, 372, 413, 458, 342, , 346
ESP10, 307, 351, 377, 420, 463, 344, , 348
ESP10, 303, 352, 374, 418, 460, 347, , 351
ESP10, 302, 357, 377, 418, 459, 349, , 353
ESP10, 305, 359, 382, 420, 460, 351, , 355
ESP10, 309, 358, 383, 427, 461, 354, , 358
ESP10, 305, 353, 379, 423, 457, 356, , 360
ESP10, 309, 352, 378, 420, 459, 358, , 362
ESP10, 325, 351, 377, 420, 461, 361, , 365
ESP10, 327, 351, 379, 419, 460, 363, , 367
ESP10, 328, 358, 383, 420, 461, 366, , 370
ESP10, 328, 362, 383, 419, 463, 368, , 372
ESP10, 324, 359, 379, 415, 456, 370, , 374
ESP10, 329, 364, 385, 421, 463, 373, , 377
ESP10, 329, 363, 381, 426, 461, 375, , 379
ESP10, 338, 372, 387, 438, 465, 377, , 381
ESP10, 344, 377, 394, 441, 468, 380, , 384
ESP10, 343, 378, 395, 442, 467, 382, , 386
ESP10, 340, 379, 395, 440, 465, 384, , 388
ESP10, 324, 368, 380, 428, 458, 387, , 391
ESP10, 317, 359, 375, 420, 449, 389, , 393
ESP10, 309, 352, 369, 413, 444, 391, , 395
ESP10, 312, 355, 372, 415, 447, 394, , 398
ESP10, 314, 357, 376, 418, 448, 396, , 400
ESP10, 319, 361, 378, 420, 450, 398, , 402
ESP10, 313, 357, 374, 415, 444, 401, , 405
ESP10, 312, 352, 368, 416, 440, 403, , 407
ESP10, 309, 342, 363, 407, 431, 405, , 409
ESP10, 313, 349, 368, 411, 436, 408, , 412
ESP10, 325, 359, 379, 420, 446, 410, , 414
ESP10, 333, 365, 382, 422, 447, 412, , 416
ESP10, 331, 369, 381, 420, 446, 415, , 419
ESP10, 333, 363, 377, 416, 441, 417, , 421
ESP10, 324, 355, 370, 410, 430, 419, , 423
ESP10, 316, 350, 361, 402, 419, 422, , 426
ESP10, 324, 355, 368, 408, 423, 424, , 428
ESP10, 326, 356, 375, 409, 425, 426, , 430
ESP10, 330, 359, 384, 414, 428, 429, , 433
ESP10, 335, 359, 383, 414, 425, 431, , 435
ESP10, 330, 357, 375, 408, 418, 433, , 437
ESP10, 319, 344, 363, 395, 406, 436, , 440
ESP10, 332, 352, 370, 402, 414, 438, , 442
ESP10, 335, 352, 374, 403, 416, 440, , 444
ESP10, 325, 342, 363, 393, 408, 443, , 447
ESP10, 318, 336, 356, 387, 402, 445, , 449
ESP10, 316, 330, 350, 382, 399, 448, , 452
ESP10, 312, 324, 346, 379, 393, 450, , 454
ESP10, 306, 316, 340, 373, 387, 452, , 456
ESP10, 299, 310, 334, 365, 381, 455, , 459
ESP10, 295, 303, 328, 357, 373, 457, , 461
ESP10, 285, 293, 318, 346, 364, 459, , 463
ESP10, 279, 290, 312, 337, 358, 462, , 466
ESP10, 292, 301, 324, 346, 366, 464, , 468
ESP10, 291, 306, 324, 345, 365, 466, , 470
ESP10, 283, 300, 317, 339, 355, 469, , 473
ESP10, 280, 299, 316, 337, 351, 471, , 475
ESP10, 278, 296, 314, 335, 349, 473, , 477
ESP10, 270, 285, 302, 326, 337, 476, , 480
ESP10, 270, 285, 301, 326, 337, 478, , 482
ESP10, 266, 277, 296, 317, 335, 480, , 484
ESP10, 277, 288, 308, 327, 346, 483, , 487
ESP10, 279, 289, 312, 328, 348, 485, , 489
ESP10, 300, 309, 333, 352, 368, 487, , 491
ESP10, 307, 321, 340, 359, 376, 490, , 494
ESP10, 309, 324, 342, 362, 380, 492, , 496
ESP10, 301, 316, 336, 355, 373, 494, , 498
ESP10, 324, 341, 363, 380, 396, 497, , 501
ESP10, 317, 334, 357, 373, 391, 499, , 503
ESP10, 315, 330, 355, 375, 389, 501, , 505
ESP10, 315, 331, 356, 375, 389, 504, , 508
ESP10, 318, 333, 359, 376, 390, 506, , 510
ESP10, 320, 335, 361, 378, 393, 508, , 512
ESP10, 316, 331, 355, 375, 387, 511, , 515
ESP10, 317, 333, 359, 377, 390, 513, , 517
ESP10, 308, 326, 352, 370, 383, 515, , 519
ESP10, 311, 329, 354, 373, 385, 518, , 522
ESP10, 309, 325, 353, 372, 382, 520, , 524
ESP10, 306, 328, 351, 371, 379, 522, , 526
ESP10, 312, 333, 356, 375, 383, 525, , 529
ESP10, 318, 339, 361, 381, 390, 527, , 531
ESP10, 318, 337, 360, 379, 387, 530, , 534
ESP10, 319, 335, 359, 379, 387, 532, , 536
ESP10, 323, 342, 361, 381, 397, 534, , 538
ESP10, 325, 347, 363, 385, 398, 537, , 541
ESP10, 324, 346, 362, 384, 395, 539, , 543
ESP10, 325, 346, 363, 385, 396, 541, , 545
ESP10, 337, 362, 375, 399, 408, 544, , 548
ESP10, 352, 376, 387, 409, 423, 546, , 550
ESP10, 351, 375, 389, 409, 426, 548, , 552
ESP10, 351, 375, 390, 409, 426, 551, , 555
ESP10, 349, 371, 389, 406, 423, 553, , 557
ESP10, 350, 371, 388, 404, 421, 555, , 559
ESP10, 352, 370, 387, 404, 420, 558, , 562
ESP10, 350, 374, 386, 406, 419, 560, , 564
ESP10, 347, 371, 385, 404, 416, 562, , 566
ESP10, 365, 390, 404, 422, 436, 565, , 569
ESP10, 348, 371, 384, 403, 415, 567, , 571
ESP10, 349, 372, 386, 406, 417, 569, , 573
ESP10, 339, 365, 376, 398, 408, 572, , 576
ESP10, 339, 365, 378, 398, 409, 574, , 578
ESP10, 331, 357, 371, 391, 401, 576, , 580
ESP10, 336, 363, 379, 397, 406, 579, , 583
ESP10, 343, 366, 384, 401, 412, 581, , 585
ESP10, 335, 358, 377, 394, 404, 583, , 587
ESP10, 351, 372, 391, 407, 417, 586, , 590
ESP10, 352, 374, 393, 407, 419, 588, , 592
ESP10, 355, 379, 396, 411, 422, 590, , 594
ESP10, 357, 382, 399, 415, 425, 593, , 597
ESP10, 356, 382, 399, 416, 425, 595, , 599
ESP10, 358, 388, 402, 418, 429, 597, , 601
ESP10, 359, 388, 403, 422, 431, 600, , 604
ESP10, 360, 386, 401, 422, 430, 602, , 606
ESP10, 357, 382, 398, 418, 426, 604, , 608
ESP10, 354, 378, 394, 415, 424, 607, , 611
ESP10, 354, 378, 395, 415, 425, 609, , 613
ESP10, 364, 386, 402, 420, 432, 611, , 615
ESP10, 360, 383, 397, 415, 427, 614, , 618
ESP10, 369, 392, 407, 423, 434, 616, , 620
ESP10, 365, 387, 403, 419, 429, 619, , 623
ESP10, 364, 384, 403, 418, 427, 621, , 625
ESP10, 354, 375, 393, 411, 417, 623, , 627
ESP10, 353, 376, 389, 406, 418, 626, , 630
ESP10, 354, 372, 384, 401, 414, 628, , 632
ESP10, 362, 380, 391, 407, 420, 630, , 634
ESP10, 372, 384, 395, 412, 424, 633, , 637
ESP10, 375, 385, 397, 414, 424, 635, , 639
ESP10, 374, 385, 400, 414, 425, 637, , 641
ESP10, 372, 382, 397, 413, 420, 640, , 644
ESP10, 368, 375, 390, 407, 417, 642, , 646
ESP10, 374, 384, 399, 412, 423, 644, , 648
ESP10, 366, 377, 393, 409, 420, 647, , 651
ESP10, 363, 376, 392, 408, 417, 649, , 653
ESP10, 359, 370, 387, 401, 409, 651, , 655
ESP10, 365, 375, 393, 407, 415, 654, , 658
ESP10, 365, 380, 397, 406, 414, 677, , 681
ESP10, 363, 378, 395, 406, 412, 679, , 683
ESP10, 367, 381, 396, 406, 413, 682, , 686
ESP10, 369, 382, 398, 407, 413, 684, , 688
ESP10, 371, 386, 400, 411, 416, 686, , 690
ESP10, 375, 390, 401, 412, 416, 689, , 693
ESP10, 380, 399, 410, 418, 421, 691, , 695
ESP10, 377, 396, 407, 416, 420, 693, , 697
ESP10, 375, 393, 407, 413, 417, 696, , 700
ESP10, 378, 395, 409, 414, 418, 698, , 702
ESP10, 375, 394, 407, 412, 416, 701, , 705
ESP10, 375, 391, 405, 411, 413, 703, , 707
ESP10, 384, 396, 412, 417, 421, 705, , 709
ESP10, 386, 396, 411, 416, 421, 708, , 712
ESP10, 389, 397, 413, 418, 421, 710, , 714
ESP10, 384, 394, 409, 415, 418, 712, , 716
ESP10, 388, 397, 413, 418, 421, 715, , 719
ESP10, 386, 396, 410, 414, 416, 717, , 721
ESP10, 383, 395, 407, 412, 414, 719, , 723
ESP10, 383, 397, 406, 412, 415, 722, , 726
ESP10, 382, 397, 405, 411, 414, 724, , 728
ESP10, 385, 399, 408, 414, 416, 726, , 730
ESP10, 381, 393, 403, 409, 411, 729, , 733
ESP10, 373, 386, 395, 400, 405, 731, , 735
ESP10, 377, 392, 400, 406, 411, 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/watersupply/ARDQ2IW_SQIN.ESPF10.csv
ARDQ2IW_SQIN.ESPF0.csv|2025-07-12
ARDQ2IW_SQIN.ESPF10.csv|2025-07-12
ARDQ2IW_SQIN.ESPFM.csv|2025-07-12
APR-SEP
COLUMBIA - ARROW LAKES (HUGH KEENLEYSIDE DAM)
(
ARDQ2
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-12
Issued:
2025-07-12
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
18501
23577
98
28375
24059
APR-JUL
14485
18050
96
21500
18779
JAN-SEP
20147
25346
98
30085
25978
JAN-JUL
16131
20237
98
23215
20698
OCT-SEP
22758
28285
97
32750
29084
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/ARDQ2IW_SQIN.ESPF10.csv
ARDQ2IW_SQIN.ESPF0.csv|2025-07-12
ARDQ2IW_SQIN.ESPF10.csv|2025-07-12
ARDQ2IW_SQIN.ESPFM.csv|2025-07-12
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
