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Water Year
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UMATILLA - AT PENDLETON
(
PDTO3
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-04-27
Issued:
2026-04-27
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
113
115
73
153
158
APR-JUL
110
111
73
147
152
JAN-SEP
244
246
74
285
331
JAN-JUL
241
243
75
279
326
OCT-SEP
303
305
80
343
380
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-04-27
Issued:
2026-04-27
Hide Forecast
APR-SEP
113
117
74
170
158
APR-JUL
110
113
74
163
152
JAN-SEP
245
248
75
302
331
JAN-JUL
242
245
75
294
326
OCT-SEP
303
306
81
360
380
Reference
ESP with 0 Days QPF
Ensemble:
2026-04-27
Issued:
2026-04-27
Hide Forecast
APR-SEP
113
120
76
176
158
APR-JUL
110
117
77
168
152
JAN-SEP
245
252
76
307
331
JAN-JUL
242
248
76
299
326
OCT-SEP
303
310
82
365
380
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 210, 262, 346, 403, 440, 71, , 75
ESP10, 208, 260, 345, 401, 439, 74, , 78
ESP10, 208, 259, 346, 401, 439, 78, , 82
ESP10, 210, 261, 348, 402, 440, 81, , 85
ESP10, 210, 261, 348, 402, 441, 84, , 88
ESP10, 208, 259, 346, 401, 440, 87, , 91
ESP10, 207, 257, 344, 400, 439, 90, , 94
ESP10, 210, 260, 347, 401, 441, 94, , 98
ESP10, 208, 263, 346, 401, 441, 97, , 101
ESP10, 206, 262, 344, 400, 440, 100, , 104
ESP10, 205, 261, 342, 399, 438, 103, , 107
ESP10, 207, 263, 346, 400, 439, 106, , 110
ESP10, 201, 258, 340, 397, 436, 109, , 113
ESP10, 200, 257, 340, 396, 436, 113, , 117
ESP10, 197, 255, 338, 395, 435, 116, , 120
ESP10, 191, 251, 334, 392, 433, 119, , 123
ESP10, 189, 250, 332, 392, 432, 122, , 126
ESP10, 189, 251, 334, 393, 432, 125, , 129
ESP10, 195, 254, 339, 396, 434, 129, , 133
ESP10, 199, 255, 343, 398, 435, 132, , 136
ESP10, 198, 252, 339, 395, 435, 135, , 139
ESP10, 201, 253, 342, 397, 435, 138, , 142
ESP10, 199, 251, 339, 394, 434, 141, , 145
ESP10, 205, 256, 349, 399, 438, 145, , 149
ESP10, 206, 256, 357, 399, 439, 148, , 152
ESP10, 205, 256, 355, 397, 440, 151, , 155
ESP10, 205, 254, 355, 397, 441, 154, , 158
ESP10, 205, 253, 355, 397, 441, 157, , 161
ESP10, 204, 251, 353, 405, 441, 161, , 165
ESP10, 203, 247, 345, 402, 439, 164, , 168
ESP10, 204, 247, 345, 407, 439, 167, , 171
ESP10, 203, 246, 343, 405, 439, 170, , 174
ESP10, 204, 247, 344, 406, 439, 173, , 177
ESP10, 204, 248, 345, 409, 439, 176, , 180
ESP10, 207, 249, 349, 413, 440, 180, , 184
ESP10, 208, 250, 348, 413, 440, 183, , 187
ESP10, 209, 252, 348, 413, 441, 186, , 190
ESP10, 209, 257, 348, 412, 441, 189, , 193
ESP10, 209, 271, 348, 412, 442, 192, , 196
ESP10, 204, 268, 347, 411, 440, 196, , 200
ESP10, 207, 271, 351, 417, 442, 199, , 203
ESP10, 211, 277, 355, 421, 445, 202, , 206
ESP10, 208, 274, 353, 419, 445, 205, , 209
ESP10, 223, 284, 362, 425, 448, 208, , 212
ESP10, 226, 289, 362, 423, 448, 212, , 216
ESP10, 222, 283, 357, 419, 444, 215, , 219
ESP10, 232, 291, 365, 425, 450, 218, , 222
ESP10, 234, 295, 368, 428, 452, 221, , 225
ESP10, 238, 296, 367, 427, 451, 224, , 228
ESP10, 232, 293, 367, 423, 450, 228, , 232
ESP10, 229, 292, 369, 419, 451, 231, , 235
ESP10, 225, 290, 364, 417, 448, 234, , 238
ESP10, 230, 295, 369, 420, 449, 237, , 241
ESP10, 236, 300, 379, 424, 453, 240, , 244
ESP10, 225, 292, 367, 412, 446, 243, , 247
ESP10, 246, 304, 379, 424, 457, 247, , 251
ESP10, 236, 294, 369, 415, 454, 250, , 254
ESP10, 244, 303, 377, 426, 460, 253, , 257
ESP10, 240, 299, 375, 425, 457, 256, , 260
ESP10, 238, 295, 375, 423, 455, 259, , 263
ESP10, 230, 292, 371, 419, 454, 263, , 267
ESP10, 241, 295, 377, 423, 456, 266, , 270
ESP10, 240, 295, 376, 422, 456, 269, , 273
ESP10, 228, 291, 367, 415, 453, 272, , 276
ESP10, 238, 298, 375, 420, 458, 275, , 279
ESP10, 237, 298, 373, 419, 457, 279, , 283
ESP10, 235, 299, 374, 419, 459, 282, , 286
ESP10, 242, 304, 378, 422, 468, 285, , 289
ESP10, 248, 308, 381, 424, 470, 288, , 292
ESP10, 243, 304, 378, 419, 467, 291, , 295
ESP10, 241, 302, 376, 417, 465, 295, , 299
ESP10, 246, 310, 378, 420, 469, 298, , 302
ESP10, 239, 308, 378, 417, 467, 301, , 305
ESP10, 244, 314, 378, 421, 466, 304, , 308
ESP10, 250, 319, 384, 427, 470, 307, , 311
ESP10, 254, 324, 388, 433, 476, 310, , 314
ESP10, 261, 320, 384, 430, 473, 314, , 318
ESP10, 265, 319, 380, 427, 469, 317, , 321
ESP10, 278, 331, 382, 429, 472, 320, , 324
ESP10, 272, 333, 375, 422, 469, 323, , 327
ESP10, 273, 335, 377, 425, 469, 326, , 330
ESP10, 282, 339, 380, 427, 472, 330, , 334
ESP10, 279, 339, 378, 425, 472, 333, , 337
ESP10, 278, 340, 377, 424, 472, 336, , 340
ESP10, 270, 331, 369, 420, 465, 339, , 343
ESP10, 269, 331, 372, 422, 464, 342, , 346
ESP10, 273, 337, 377, 424, 467, 346, , 350
ESP10, 275, 340, 378, 424, 469, 349, , 353
ESP10, 275, 341, 378, 425, 469, 352, , 356
ESP10, 273, 344, 381, 423, 468, 355, , 359
ESP10, 272, 346, 389, 422, 466, 358, , 362
ESP10, 273, 346, 397, 421, 466, 362, , 366
ESP10, 268, 341, 392, 416, 462, 365, , 369
ESP10, 272, 341, 390, 416, 464, 368, , 372
ESP10, 287, 347, 394, 422, 470, 371, , 375
ESP10, 292, 351, 398, 430, 475, 374, , 378
ESP10, 288, 345, 393, 425, 471, 377, , 381
ESP10, 293, 347, 395, 426, 474, 381, , 385
ESP10, 302, 347, 394, 426, 474, 384, , 388
ESP10, 313, 350, 397, 430, 477, 387, , 391
ESP10, 316, 354, 400, 432, 480, 390, , 394
ESP10, 315, 356, 400, 433, 480, 393, , 397
ESP10, 319, 362, 402, 436, 481, 397, , 401
ESP10, 318, 361, 402, 438, 479, 400, , 404
ESP10, 321, 371, 405, 441, 481, 403, , 407
ESP10, 323, 378, 406, 442, 484, 406, , 410
ESP10, 320, 376, 405, 439, 485, 409, , 413
ESP10, 322, 378, 406, 440, 485, 413, , 417
ESP10, 322, 382, 406, 440, 485, 416, , 420
ESP10, 329, 388, 416, 447, 490, 419, , 423
ESP10, 329, 387, 419, 450, 489, 422, , 426
ESP10, 331, 389, 420, 450, 490, 425, , 429
ESP10, 333, 394, 421, 451, 491, 429, , 433
ESP10, 340, 396, 425, 452, 493, 432, , 436
ESP10, 339, 396, 425, 453, 494, 435, , 439
ESP10, 340, 401, 428, 453, 494, 438, , 442
ESP10, 344, 404, 430, 455, 494, 441, , 445
ESP10, 343, 402, 429, 456, 493, 444, , 448
ESP10, 339, 399, 425, 453, 490, 448, , 452
ESP10, 340, 403, 429, 457, 490, 451, , 455
ESP10, 342, 405, 433, 459, 491, 454, , 458
ESP10, 343, 405, 433, 461, 491, 457, , 461
ESP10, 345, 405, 432, 460, 492, 460, , 464
ESP10, 345, 403, 434, 460, 492, 464, , 468
ESP10, 349, 405, 438, 463, 493, 467, , 471
ESP10, 356, 408, 440, 466, 495, 470, , 474
ESP10, 353, 403, 442, 465, 494, 473, , 477
ESP10, 352, 403, 440, 467, 493, 476, , 480
ESP10, 356, 407, 443, 471, 493, 480, , 484
ESP10, 354, 404, 440, 472, 492, 483, , 487
ESP10, 355, 406, 441, 472, 491, 486, , 490
ESP10, 359, 409, 444, 475, 496, 489, , 493
ESP10, 354, 405, 440, 471, 494, 492, , 496
ESP10, 354, 404, 441, 470, 495, 496, , 500
ESP10, 349, 401, 439, 466, 495, 499, , 503
ESP10, 340, 393, 430, 466, 492, 502, , 506
ESP10, 348, 395, 437, 470, 493, 505, , 509
ESP10, 358, 399, 439, 474, 494, 508, , 512
ESP10, 350, 387, 433, 466, 489, 511, , 515
ESP10, 363, 399, 443, 474, 494, 515, , 519
ESP10, 364, 401, 443, 476, 495, 518, , 522
ESP10, 367, 403, 446, 478, 496, 521, , 525
ESP10, 369, 406, 447, 481, 497, 524, , 528
ESP10, 368, 405, 446, 481, 496, 527, , 531
ESP10, 369, 404, 444, 482, 494, 531, , 535
ESP10, 375, 407, 447, 483, 496, 534, , 538
ESP10, 379, 409, 452, 485, 498, 537, , 541
ESP10, 375, 407, 450, 482, 495, 540, , 544
ESP10, 375, 409, 450, 484, 496, 543, , 547
ESP10, 372, 406, 447, 482, 495, 547, , 551
ESP10, 379, 412, 453, 486, 498, 550, , 554
ESP10, 380, 411, 453, 486, 497, 553, , 557
ESP10, 379, 411, 453, 486, 498, 556, , 560
ESP10, 376, 407, 450, 482, 494, 559, , 563
ESP10, 377, 413, 450, 482, 495, 563, , 567
ESP10, 377, 413, 451, 483, 496, 566, , 570
ESP10, 377, 415, 451, 483, 497, 569, , 573
ESP10, 376, 412, 448, 481, 495, 572, , 576
ESP10, 377, 414, 449, 483, 495, 575, , 579
ESP10, 385, 420, 454, 487, 499, 578, , 582
ESP10, 372, 410, 442, 478, 491, 582, , 586
ESP10, 358, 402, 432, 469, 485, 585, , 589
ESP10, 376, 420, 450, 483, 497, 588, , 592
ESP10, 380, 421, 451, 486, 500, 591, , 595
ESP10, 384, 421, 452, 486, 500, 594, , 598
ESP10, 383, 413, 446, 481, 493, 598, , 602
ESP10, 384, 417, 451, 484, 497, 601, , 605
ESP10, 385, 417, 452, 483, 498, 604, , 608
ESP10, 390, 426, 459, 487, 501, 607, , 611
ESP10, 391, 428, 467, 488, 501, 610, , 614
ESP10, 388, 430, 464, 488, 499, 614, , 618
ESP10, 388, 432, 466, 488, 501, 617, , 621
ESP10, 383, 432, 464, 487, 498, 620, , 624
ESP10, 363, 413, 448, 474, 483, 623, , 627
ESP10, 370, 409, 449, 469, 479, 626, , 630
ESP10, 388, 427, 461, 479, 489, 630, , 634
ESP10, 381, 419, 456, 470, 481, 633, , 637
ESP10, 373, 414, 449, 465, 472, 636, , 640
ESP10, 381, 418, 455, 468, 477, 639, , 643
ESP10, 394, 433, 464, 478, 490, 642, , 646
ESP10, 403, 439, 468, 483, 491, 645, , 649
ESP10, 410, 439, 470, 486, 493, 649, , 653
ESP10, 412, 442, 480, 489, 495, 652, , 656
ESP10, 419, 449, 484, 494, 498, 655, , 659
ESP10, 417, 451, 483, 494, 498, 658, , 662
ESP10, 419, 456, 482, 493, 498, 661, , 665
ESP10, 416, 451, 478, 490, 496, 665, , 669
ESP10, 416, 456, 481, 489, 495, 668, , 672
ESP10, 401, 441, 469, 479, 485, 671, , 675
ESP10, 387, 435, 460, 470, 478, 674, , 678
ESP10, 390, 440, 465, 479, 482, 677, , 681
ESP10, 384, 429, 456, 473, 475, 681, , 685
ESP10, 373, 419, 450, 465, 468, 684, , 688
ESP10, 344, 391, 424, 438, 440, 687, , 691
ESP10, 353, 397, 434, 447, 449, 690, , 694
ESP10, 364, 408, 443, 452, 454, 693, , 697
ESP10, 378, 415, 449, 455, 456, 697, , 701
ESP10, 359, 392, 431, 438, 440, 700, , 704
ESP10, 353, 391, 416, 421, 423, 703, , 707
ESP10, 350, 390, 415, 418, 421, 706, , 710
ESP10, 341, 383, 406, 408, 410, 709, , 713
ESP10, 328, 368, 391, 393, 394, 712, , 716
ESP10, 302, 349, 364, 366, 368, 716, , 720
ESP10, 341, 386, 399, 401, 402, 719, , 723
ESP10, 340, 388, 400, 402, 403, 722, , 726
ESP10, 340, 386, 394, 396, 397, 725, , 729
ESP10, 340, 387, 394, 396, 397, 728, , 732
ESP10, 342, 387, 394, 396, 397, 732, , 736
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Scale To Last 45 Days
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/PDTO3W_SQIN.ESPF10.csv
PDTO3W_SQIN.ESPF0.csv|2026-04-27
PDTO3W_SQIN.ESPF10.csv|2026-04-27
PDTO3W_SQIN.ESPFM.csv|2026-04-27
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
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