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Archive:
Water Year
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LEWIS - MERWIN DAM
(
MEWW1
)
Forecasts for Water Year
2025
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
738
747
69
779
1082
APR-JUL
663
663
75
664
881
JAN-SEP
1873
1882
80
1914
2363
JAN-JUL
1798
1798
83
1799
2162
OCT-SEP
2876
2884
84
2916
3417
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
APR-SEP
738
747
69
779
1082
APR-JUL
662
663
75
666
881
JAN-SEP
1874
1882
80
1914
2363
JAN-JUL
1797
1798
83
1802
2162
OCT-SEP
2876
2884
84
2916
3417
Reference
ESP with 0 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
APR-SEP
738
749
69
784
1082
APR-JUL
662
663
75
670
881
JAN-SEP
1873
1884
80
1919
2363
JAN-JUL
1797
1798
83
1806
2162
OCT-SEP
2876
2887
84
2921
3417
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 233, 282, 324, 378, 452, 70, , 74
ESP10, 233, 282, 324, 378, 452, 73, , 77
ESP10, 233, 282, 324, 378, 452, 75, , 79
ESP10, 233, 282, 324, 378, 452, 77, , 81
ESP10, 233, 282, 324, 378, 452, 80, , 84
ESP10, 233, 282, 324, 378, 452, 82, , 86
ESP10, 233, 282, 324, 378, 452, 84, , 88
ESP10, 233, 282, 324, 378, 452, 87, , 91
ESP10, 233, 282, 324, 378, 452, 89, , 93
ESP10, 233, 282, 324, 378, 452, 92, , 96
ESP10, 233, 282, 324, 378, 452, 94, , 98
ESP10, 233, 282, 324, 378, 452, 96, , 100
ESP10, 233, 282, 324, 378, 453, 99, , 103
ESP10, 233, 282, 324, 378, 453, 101, , 105
ESP10, 233, 282, 324, 378, 454, 103, , 107
ESP10, 233, 282, 324, 378, 454, 106, , 110
ESP10, 233, 282, 324, 378, 454, 108, , 112
ESP10, 233, 282, 324, 378, 454, 110, , 114
ESP10, 233, 282, 324, 378, 455, 113, , 117
ESP10, 233, 280, 323, 378, 453, 115, , 119
ESP10, 233, 281, 324, 379, 454, 117, , 121
ESP10, 233, 280, 324, 378, 453, 120, , 124
ESP10, 233, 280, 323, 379, 453, 122, , 126
ESP10, 232, 280, 323, 378, 453, 124, , 128
ESP10, 231, 279, 322, 377, 454, 127, , 131
ESP10, 231, 278, 322, 376, 452, 129, , 133
ESP10, 233, 279, 323, 376, 453, 131, , 135
ESP10, 234, 280, 323, 377, 453, 134, , 138
ESP10, 233, 279, 322, 376, 453, 136, , 140
ESP10, 235, 280, 322, 378, 453, 139, , 143
ESP10, 234, 278, 319, 377, 451, 141, , 145
ESP10, 231, 275, 312, 374, 446, 143, , 147
ESP10, 230, 275, 311, 374, 445, 146, , 150
ESP10, 229, 273, 310, 372, 443, 148, , 152
ESP10, 223, 269, 304, 368, 438, 150, , 154
ESP10, 229, 274, 311, 376, 446, 153, , 157
ESP10, 230, 275, 313, 379, 450, 155, , 159
ESP10, 230, 275, 313, 379, 451, 157, , 161
ESP10, 231, 274, 313, 378, 451, 160, , 164
ESP10, 231, 276, 315, 378, 453, 162, , 166
ESP10, 231, 277, 317, 378, 454, 164, , 168
ESP10, 232, 278, 320, 378, 454, 167, , 171
ESP10, 228, 276, 315, 373, 448, 169, , 173
ESP10, 228, 278, 317, 373, 447, 171, , 175
ESP10, 218, 274, 308, 364, 436, 174, , 178
ESP10, 212, 266, 301, 358, 429, 176, , 180
ESP10, 213, 268, 304, 361, 431, 178, , 182
ESP10, 217, 273, 306, 369, 438, 181, , 185
ESP10, 218, 276, 309, 373, 441, 183, , 187
ESP10, 221, 280, 313, 378, 444, 186, , 190
ESP10, 218, 280, 307, 379, 441, 188, , 192
ESP10, 222, 286, 319, 385, 445, 190, , 194
ESP10, 225, 290, 323, 389, 450, 193, , 197
ESP10, 223, 289, 321, 387, 448, 195, , 199
ESP10, 223, 289, 321, 386, 448, 197, , 201
ESP10, 223, 291, 321, 387, 448, 200, , 204
ESP10, 226, 292, 322, 387, 450, 202, , 206
ESP10, 228, 294, 325, 389, 452, 204, , 208
ESP10, 229, 293, 325, 388, 452, 207, , 211
ESP10, 230, 293, 325, 388, 451, 209, , 213
ESP10, 234, 295, 326, 389, 453, 211, , 215
ESP10, 234, 293, 326, 387, 453, 214, , 218
ESP10, 229, 287, 321, 381, 447, 216, , 220
ESP10, 228, 284, 322, 379, 444, 218, , 222
ESP10, 224, 279, 318, 375, 440, 221, , 225
ESP10, 223, 276, 315, 373, 437, 223, , 227
ESP10, 223, 275, 315, 372, 436, 226, , 230
ESP10, 225, 277, 320, 373, 439, 228, , 232
ESP10, 225, 276, 319, 372, 439, 230, , 234
ESP10, 224, 274, 315, 368, 432, 233, , 237
ESP10, 229, 280, 319, 374, 439, 235, , 239
ESP10, 231, 283, 321, 377, 441, 237, , 241
ESP10, 232, 282, 322, 380, 441, 240, , 244
ESP10, 230, 277, 319, 377, 436, 242, , 246
ESP10, 227, 272, 314, 373, 431, 244, , 248
ESP10, 230, 274, 316, 375, 434, 247, , 251
ESP10, 229, 271, 316, 372, 430, 249, , 253
ESP10, 230, 271, 318, 372, 430, 251, , 255
ESP10, 227, 267, 317, 369, 427, 254, , 258
ESP10, 230, 269, 319, 375, 429, 256, , 260
ESP10, 230, 268, 319, 375, 429, 258, , 262
ESP10, 231, 269, 322, 376, 431, 261, , 265
ESP10, 230, 269, 322, 376, 432, 263, , 267
ESP10, 229, 265, 318, 373, 430, 265, , 269
ESP10, 227, 262, 316, 371, 427, 268, , 272
ESP10, 227, 261, 316, 370, 428, 270, , 274
ESP10, 230, 264, 320, 375, 432, 273, , 277
ESP10, 231, 267, 321, 377, 432, 275, , 279
ESP10, 228, 264, 318, 375, 430, 277, , 281
ESP10, 230, 268, 325, 378, 432, 280, , 284
ESP10, 231, 271, 329, 379, 432, 282, , 286
ESP10, 233, 275, 333, 381, 435, 284, , 288
ESP10, 233, 276, 331, 380, 434, 287, , 291
ESP10, 234, 280, 334, 383, 437, 289, , 293
ESP10, 235, 284, 333, 385, 436, 294, , 298
ESP10, 237, 287, 337, 387, 438, 296, , 300
ESP10, 235, 285, 334, 385, 435, 298, , 302
ESP10, 237, 285, 336, 386, 435, 301, , 305
ESP10, 237, 285, 336, 387, 435, 303, , 307
ESP10, 239, 285, 336, 390, 435, 305, , 309
ESP10, 241, 286, 337, 391, 436, 308, , 312
ESP10, 241, 288, 341, 391, 436, 310, , 314
ESP10, 237, 284, 340, 387, 432, 312, , 316
ESP10, 241, 284, 343, 387, 434, 315, , 319
ESP10, 248, 288, 352, 391, 439, 317, , 321
ESP10, 248, 287, 352, 392, 439, 320, , 324
ESP10, 247, 287, 353, 391, 442, 322, , 326
ESP10, 248, 289, 357, 392, 444, 324, , 328
ESP10, 250, 290, 361, 393, 446, 327, , 331
ESP10, 250, 290, 362, 393, 446, 329, , 333
ESP10, 249, 290, 361, 395, 445, 331, , 335
ESP10, 240, 283, 354, 387, 436, 334, , 338
ESP10, 235, 279, 350, 384, 431, 336, , 340
ESP10, 236, 280, 351, 386, 431, 338, , 342
ESP10, 238, 282, 353, 388, 433, 341, , 345
ESP10, 236, 282, 351, 386, 429, 343, , 347
ESP10, 228, 275, 341, 378, 423, 345, , 349
ESP10, 230, 278, 346, 380, 424, 348, , 352
ESP10, 228, 276, 344, 378, 422, 350, , 354
ESP10, 227, 276, 344, 377, 421, 352, , 356
ESP10, 228, 280, 348, 378, 423, 355, , 359
ESP10, 228, 277, 348, 376, 421, 357, , 361
ESP10, 225, 273, 342, 374, 416, 360, , 364
ESP10, 227, 275, 343, 377, 423, 362, , 366
ESP10, 225, 272, 338, 378, 421, 364, , 368
ESP10, 215, 262, 329, 370, 417, 367, , 371
ESP10, 208, 257, 326, 369, 415, 369, , 373
ESP10, 213, 264, 329, 373, 419, 371, , 375
ESP10, 210, 265, 329, 372, 418, 374, , 378
ESP10, 219, 271, 337, 381, 426, 376, , 380
ESP10, 225, 276, 343, 385, 432, 378, , 382
ESP10, 225, 275, 344, 385, 433, 381, , 385
ESP10, 225, 277, 345, 386, 435, 383, , 387
ESP10, 224, 277, 346, 387, 435, 385, , 389
ESP10, 225, 280, 347, 386, 436, 388, , 392
ESP10, 227, 281, 348, 387, 438, 390, , 394
ESP10, 228, 281, 348, 387, 438, 392, , 396
ESP10, 235, 282, 350, 390, 440, 395, , 399
ESP10, 246, 284, 352, 392, 444, 397, , 401
ESP10, 251, 286, 354, 396, 446, 399, , 403
ESP10, 265, 289, 357, 402, 448, 402, , 406
ESP10, 264, 288, 356, 405, 449, 404, , 408
ESP10, 262, 287, 354, 404, 447, 407, , 411
ESP10, 261, 286, 353, 402, 444, 409, , 413
ESP10, 261, 285, 353, 401, 442, 411, , 415
ESP10, 262, 284, 357, 403, 440, 414, , 418
ESP10, 262, 285, 359, 404, 442, 416, , 420
ESP10, 260, 285, 357, 404, 441, 418, , 422
ESP10, 256, 284, 356, 402, 439, 421, , 425
ESP10, 252, 283, 352, 403, 436, 423, , 427
ESP10, 250, 282, 349, 400, 432, 425, , 429
ESP10, 248, 278, 346, 397, 428, 428, , 432
ESP10, 253, 285, 352, 403, 431, 430, , 434
ESP10, 252, 286, 352, 400, 428, 432, , 436
ESP10, 243, 280, 346, 392, 421, 435, , 439
ESP10, 238, 274, 342, 386, 416, 437, , 441
ESP10, 238, 276, 344, 388, 419, 439, , 443
ESP10, 237, 276, 346, 388, 419, 442, , 446
ESP10, 235, 274, 344, 386, 417, 444, , 448
ESP10, 230, 269, 339, 381, 413, 446, , 450
ESP10, 223, 263, 330, 373, 405, 449, , 453
ESP10, 221, 257, 323, 368, 402, 451, , 455
ESP10, 221, 262, 323, 366, 403, 454, , 458
ESP10, 216, 259, 318, 359, 399, 456, , 460
ESP10, 218, 262, 320, 361, 401, 458, , 462
ESP10, 220, 270, 324, 369, 405, 461, , 465
ESP10, 222, 277, 333, 373, 407, 463, , 467
ESP10, 228, 283, 335, 374, 406, 465, , 469
ESP10, 236, 296, 344, 378, 406, 468, , 472
ESP10, 233, 285, 334, 369, 397, 470, , 474
ESP10, 227, 284, 332, 365, 393, 472, , 476
ESP10, 219, 275, 320, 354, 388, 475, , 479
ESP10, 205, 256, 300, 336, 372, 477, , 481
ESP10, 203, 250, 294, 330, 368, 479, , 483
ESP10, 211, 268, 299, 333, 373, 482, , 486
ESP10, 223, 275, 309, 343, 375, 484, , 488
ESP10, 224, 274, 315, 343, 376, 486, , 490
ESP10, 232, 276, 315, 349, 380, 489, , 493
ESP10, 259, 297, 339, 374, 405, 491, , 495
ESP10, 267, 301, 347, 382, 409, 494, , 498
ESP10, 267, 297, 342, 379, 405, 496, , 500
ESP10, 257, 295, 342, 374, 399, 498, , 502
ESP10, 241, 280, 329, 362, 387, 501, , 505
ESP10, 227, 263, 312, 353, 376, 503, , 507
ESP10, 241, 271, 322, 364, 389, 505, , 509
ESP10, 229, 260, 315, 353, 378, 508, , 512
ESP10, 246, 275, 333, 368, 395, 510, , 514
ESP10, 235, 266, 325, 359, 389, 512, , 516
ESP10, 251, 275, 337, 369, 400, 515, , 519
ESP10, 261, 292, 343, 374, 402, 517, , 521
ESP10, 266, 294, 344, 378, 404, 519, , 523
ESP10, 270, 297, 345, 380, 405, 522, , 526
ESP10, 280, 309, 345, 380, 405, 524, , 528
ESP10, 279, 317, 344, 383, 404, 526, , 530
ESP10, 281, 319, 353, 384, 407, 529, , 533
ESP10, 283, 327, 357, 382, 406, 531, , 535
ESP10, 285, 337, 364, 388, 411, 533, , 537
ESP10, 282, 335, 363, 389, 408, 536, , 540
ESP10, 288, 341, 366, 394, 412, 538, , 542
ESP10, 294, 342, 366, 396, 414, 541, , 545
ESP10, 290, 335, 363, 388, 406, 543, , 547
ESP10, 297, 341, 373, 393, 409, 545, , 549
ESP10, 311, 348, 379, 400, 414, 548, , 552
ESP10, 316, 356, 384, 404, 417, 550, , 554
ESP10, 317, 359, 386, 406, 417, 552, , 556
ESP10, 321, 360, 389, 410, 419, 555, , 559
ESP10, 323, 359, 388, 409, 418, 557, , 561
ESP10, 320, 358, 388, 409, 417, 559, , 563
ESP10, 324, 363, 393, 411, 419, 562, , 566
ESP10, 327, 369, 395, 412, 421, 564, , 568
ESP10, 327, 371, 395, 414, 420, 566, , 570
ESP10, 331, 372, 397, 414, 421, 569, , 573
ESP10, 337, 374, 396, 414, 422, 571, , 575
ESP10, 340, 374, 396, 414, 423, 573, , 577
ESP10, 345, 385, 398, 416, 423, 576, , 580
ESP10, 343, 382, 398, 417, 422, 578, , 582
ESP10, 346, 380, 402, 417, 422, 580, , 584
ESP10, 352, 385, 408, 420, 424, 583, , 587
ESP10, 355, 385, 408, 421, 425, 585, , 589
ESP10, 355, 387, 409, 421, 425, 588, , 592
ESP10, 352, 385, 410, 421, 425, 590, , 594
ESP10, 352, 388, 409, 420, 424, 592, , 596
ESP10, 356, 394, 410, 420, 424, 595, , 599
ESP10, 355, 393, 410, 419, 425, 597, , 601
ESP10, 355, 392, 410, 419, 426, 599, , 603
ESP10, 350, 390, 407, 417, 424, 602, , 606
ESP10, 345, 385, 403, 415, 423, 604, , 608
ESP10, 340, 381, 400, 410, 418, 606, , 610
ESP10, 332, 374, 392, 403, 411, 609, , 613
ESP10, 342, 383, 400, 410, 417, 611, , 615
ESP10, 357, 390, 407, 416, 422, 613, , 617
ESP10, 358, 388, 406, 415, 421, 616, , 620
ESP10, 365, 391, 409, 418, 424, 618, , 622
ESP10, 366, 399, 411, 419, 424, 620, , 624
ESP10, 364, 396, 407, 417, 421, 623, , 627
ESP10, 366, 398, 409, 418, 422, 625, , 629
ESP10, 364, 399, 409, 418, 422, 628, , 632
ESP10, 382, 408, 415, 422, 425, 630, , 634
ESP10, 386, 409, 417, 422, 426, 632, , 636
ESP10, 393, 408, 416, 422, 426, 635, , 639
ESP10, 395, 409, 417, 422, 426, 637, , 641
ESP10, 396, 409, 419, 423, 426, 639, , 643
ESP10, 398, 411, 420, 423, 426, 642, , 646
ESP10, 398, 413, 420, 424, 427, 644, , 648
ESP10, 401, 414, 420, 424, 427, 646, , 650
ESP10, 401, 414, 420, 425, 428, 649, , 653
ESP10, 401, 415, 422, 425, 427, 651, , 655
ESP10, 401, 415, 422, 425, 427, 653, , 657
ESP10, 403, 415, 422, 426, 428, 656, , 660
ESP10, 410, 422, 428, 430, 432, 679, , 683
ESP10, 411, 424, 428, 431, 432, 682, , 686
ESP10, 412, 425, 429, 432, 433, 684, , 688
ESP10, 412, 424, 429, 431, 432, 686, , 690
ESP10, 414, 424, 428, 431, 432, 689, , 693
ESP10, 414, 424, 428, 431, 432, 691, , 695
ESP10, 414, 424, 428, 431, 432, 693, , 697
ESP10, 414, 424, 429, 431, 432, 696, , 700
ESP10, 414, 424, 429, 431, 432, 698, , 702
ESP10, 417, 427, 432, 434, 435, 700, , 704
ESP10, 414, 424, 429, 432, 432, 703, , 707
ESP10, 414, 424, 429, 432, 432, 705, , 709
ESP10, 414, 425, 429, 432, 432, 707, , 711
ESP10, 415, 425, 429, 432, 432, 710, , 714
ESP10, 415, 425, 429, 432, 432, 712, , 716
ESP10, 416, 425, 429, 432, 433, 714, , 718
ESP10, 417, 425, 429, 432, 433, 717, , 721
ESP10, 422, 428, 432, 435, 436, 719, , 723
ESP10, 422, 428, 432, 435, 436, 722, , 726
ESP10, 422, 428, 433, 435, 436, 724, , 728
ESP10, 422, 428, 433, 435, 436, 726, , 730
ESP10, 422, 429, 433, 435, 436, 729, , 733
ESP10, 422, 430, 433, 435, 436, 731, , 735
ESP10, 422, 430, 433, 435, 436, 733, , 737
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/MEWW1W_SQIN.ESPF10.csv
MEWW1W_SQIN.ESPF0.csv|2025-07-11
MEWW1W_SQIN.ESPF10.csv|2025-07-11
MEWW1W_SQIN.ESPFM.csv|2025-07-11
APR-SEP
LEWIS - MERWIN DAM
(
MEWW1
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2025-07-11
Issued:
2025-07-11
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
693
1052
97
1324
1082
APR-JUL
608
930
106
1206
881
JAN-SEP
1723
2344
99
2902
2363
JAN-JUL
1596
2215
102
2761
2162
OCT-SEP
2559
3277
96
4201
3417
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/MEWW1W_SQIN.ESPF10.csv
MEWW1W_SQIN.ESPF0.csv|2025-07-11
MEWW1W_SQIN.ESPF10.csv|2025-07-11
MEWW1W_SQIN.ESPFM.csv|2025-07-11
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
