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Archive:
Water Year
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CLARK FORK - AT ST REGIS
(
SRGM8
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
3350
3360
89
3372
3771
APR-JUL
3037
3037
89
3037
3429
APR-AUG
3200
3200
89
3202
3610
JAN-SEP
4474
4484
101
4496
4451
JAN-JUL
4161
4161
101
4161
4109
OCT-SEP
5275
5284
105
5296
5042
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
3351
3360
89
3373
3771
APR-JUL
3037
3037
89
3037
3429
APR-AUG
3199
3200
89
3204
3610
JAN-SEP
4475
4484
101
4497
4451
JAN-JUL
4161
4161
101
4161
4109
OCT-SEP
5275
5284
105
5297
5042
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
APR-SEP
3350
3360
89
3382
3771
APR-JUL
3037
3037
89
3037
3429
APR-AUG
3198
3201
89
3209
3610
JAN-SEP
4474
4484
101
4506
4451
JAN-JUL
4161
4161
101
4161
4109
OCT-SEP
5274
5285
105
5306
5042
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 260, 354, 400, 446, 475, 70, , 74
ESP10, 256, 350, 395, 442, 471, 72, , 76
ESP10, 255, 349, 395, 444, 473, 74, , 78
ESP10, 253, 350, 393, 443, 472, 76, , 80
ESP10, 251, 353, 394, 444, 471, 78, , 82
ESP10, 250, 352, 394, 443, 474, 81, , 85
ESP10, 236, 340, 383, 433, 466, 83, , 87
ESP10, 249, 353, 393, 441, 481, 85, , 89
ESP10, 243, 346, 388, 436, 477, 87, , 91
ESP10, 246, 347, 388, 435, 477, 89, , 93
ESP10, 237, 340, 380, 427, 469, 91, , 95
ESP10, 255, 352, 392, 436, 478, 93, , 97
ESP10, 245, 344, 386, 428, 469, 95, , 99
ESP10, 247, 347, 391, 430, 471, 97, , 101
ESP10, 243, 344, 388, 427, 468, 99, , 103
ESP10, 232, 335, 377, 425, 459, 102, , 106
ESP10, 225, 329, 372, 422, 456, 104, , 108
ESP10, 222, 328, 372, 424, 456, 106, , 110
ESP10, 224, 329, 374, 426, 459, 108, , 112
ESP10, 226, 332, 377, 430, 462, 110, , 114
ESP10, 219, 324, 374, 425, 456, 112, , 116
ESP10, 224, 329, 379, 429, 457, 114, , 118
ESP10, 216, 320, 374, 424, 450, 116, , 120
ESP10, 225, 331, 383, 432, 459, 118, , 122
ESP10, 229, 335, 393, 438, 464, 120, , 124
ESP10, 228, 337, 397, 442, 468, 122, , 126
ESP10, 232, 343, 403, 445, 474, 125, , 129
ESP10, 239, 346, 407, 448, 478, 127, , 131
ESP10, 239, 343, 404, 446, 475, 129, , 133
ESP10, 224, 327, 390, 433, 463, 131, , 135
ESP10, 231, 330, 393, 435, 466, 133, , 137
ESP10, 240, 330, 394, 436, 468, 135, , 139
ESP10, 242, 334, 395, 441, 468, 137, , 141
ESP10, 249, 347, 400, 446, 473, 139, , 143
ESP10, 245, 349, 398, 444, 471, 141, , 145
ESP10, 248, 352, 401, 446, 475, 143, , 147
ESP10, 243, 349, 399, 442, 473, 145, , 149
ESP10, 238, 345, 393, 443, 470, 148, , 152
ESP10, 241, 354, 398, 447, 475, 150, , 154
ESP10, 241, 353, 396, 445, 472, 152, , 156
ESP10, 246, 358, 403, 449, 476, 154, , 158
ESP10, 250, 362, 407, 454, 479, 156, , 160
ESP10, 252, 367, 412, 456, 483, 158, , 162
ESP10, 249, 366, 410, 454, 481, 160, , 164
ESP10, 247, 362, 410, 454, 479, 162, , 166
ESP10, 248, 358, 407, 451, 484, 164, , 168
ESP10, 253, 360, 410, 451, 487, 166, , 170
ESP10, 264, 368, 418, 455, 494, 169, , 173
ESP10, 270, 370, 421, 458, 497, 171, , 175
ESP10, 268, 370, 417, 455, 495, 173, , 177
ESP10, 262, 368, 413, 452, 491, 175, , 179
ESP10, 271, 366, 409, 453, 492, 177, , 181
ESP10, 270, 370, 406, 449, 492, 179, , 183
ESP10, 276, 375, 409, 453, 498, 181, , 185
ESP10, 264, 367, 399, 445, 490, 183, , 187
ESP10, 272, 369, 402, 449, 492, 185, , 189
ESP10, 267, 362, 397, 443, 486, 187, , 191
ESP10, 269, 365, 402, 447, 488, 189, , 193
ESP10, 274, 370, 408, 452, 491, 192, , 196
ESP10, 253, 351, 396, 438, 477, 194, , 198
ESP10, 229, 328, 379, 422, 462, 196, , 200
ESP10, 236, 334, 387, 430, 467, 198, , 202
ESP10, 218, 316, 370, 418, 452, 200, , 204
ESP10, 185, 284, 340, 395, 427, 202, , 206
ESP10, 188, 286, 341, 400, 428, 204, , 208
ESP10, 174, 271, 327, 389, 416, 206, , 210
ESP10, 179, 276, 331, 397, 420, 208, , 212
ESP10, 158, 257, 314, 381, 410, 210, , 214
ESP10, 151, 247, 303, 374, 402, 212, , 216
ESP10, 148, 237, 292, 364, 395, 215, , 219
ESP10, 158, 251, 301, 370, 402, 217, , 221
ESP10, 153, 247, 297, 365, 399, 219, , 223
ESP10, 155, 250, 299, 366, 399, 221, , 225
ESP10, 166, 261, 311, 375, 408, 223, , 227
ESP10, 166, 259, 308, 373, 406, 225, , 229
ESP10, 182, 272, 327, 386, 417, 227, , 231
ESP10, 184, 269, 323, 383, 412, 229, , 233
ESP10, 191, 278, 330, 384, 413, 231, , 235
ESP10, 201, 288, 339, 390, 420, 233, , 237
ESP10, 205, 285, 337, 387, 416, 236, , 240
ESP10, 207, 286, 336, 386, 413, 238, , 242
ESP10, 215, 292, 341, 390, 416, 240, , 244
ESP10, 226, 304, 352, 400, 425, 242, , 246
ESP10, 225, 303, 353, 399, 424, 244, , 248
ESP10, 219, 296, 348, 394, 420, 246, , 250
ESP10, 218, 294, 348, 395, 419, 248, , 252
ESP10, 218, 294, 349, 400, 418, 250, , 254
ESP10, 222, 297, 351, 406, 420, 252, , 256
ESP10, 222, 298, 351, 406, 421, 254, , 258
ESP10, 221, 298, 350, 406, 420, 256, , 260
ESP10, 248, 330, 366, 420, 437, 259, , 263
ESP10, 250, 328, 365, 417, 435, 261, , 265
ESP10, 254, 322, 361, 414, 431, 263, , 267
ESP10, 258, 323, 361, 412, 433, 265, , 269
ESP10, 255, 315, 358, 408, 428, 267, , 271
ESP10, 256, 315, 361, 407, 430, 269, , 273
ESP10, 250, 309, 357, 404, 427, 271, , 275
ESP10, 254, 310, 359, 405, 427, 273, , 277
ESP10, 253, 306, 356, 407, 425, 275, , 279
ESP10, 254, 305, 356, 406, 425, 277, , 281
ESP10, 260, 315, 358, 408, 426, 279, , 283
ESP10, 265, 320, 359, 408, 426, 282, , 286
ESP10, 266, 322, 360, 408, 426, 284, , 288
ESP10, 271, 320, 362, 408, 424, 286, , 290
ESP10, 276, 322, 364, 409, 425, 288, , 292
ESP10, 275, 324, 364, 408, 423, 290, , 294
ESP10, 273, 322, 364, 408, 422, 292, , 296
ESP10, 277, 323, 364, 408, 423, 294, , 298
ESP10, 274, 325, 363, 405, 420, 296, , 300
ESP10, 288, 340, 372, 415, 430, 298, , 302
ESP10, 287, 341, 371, 416, 433, 300, , 304
ESP10, 291, 345, 375, 420, 437, 303, , 307
ESP10, 293, 345, 382, 420, 441, 305, , 309
ESP10, 298, 348, 392, 423, 447, 307, , 311
ESP10, 299, 346, 391, 421, 446, 309, , 313
ESP10, 312, 348, 394, 424, 447, 311, , 315
ESP10, 326, 351, 396, 425, 447, 313, , 317
ESP10, 328, 353, 393, 423, 445, 315, , 319
ESP10, 330, 358, 394, 424, 451, 317, , 321
ESP10, 333, 359, 394, 426, 451, 319, , 323
ESP10, 335, 360, 395, 427, 452, 321, , 325
ESP10, 330, 354, 392, 422, 447, 323, , 327
ESP10, 333, 359, 395, 424, 449, 326, , 330
ESP10, 331, 356, 391, 424, 447, 328, , 332
ESP10, 335, 361, 397, 429, 450, 330, , 334
ESP10, 338, 363, 397, 432, 451, 332, , 336
ESP10, 336, 359, 392, 430, 447, 334, , 338
ESP10, 333, 355, 389, 428, 443, 336, , 340
ESP10, 335, 358, 391, 430, 446, 338, , 342
ESP10, 337, 364, 401, 432, 446, 340, , 344
ESP10, 338, 362, 401, 430, 445, 342, , 346
ESP10, 338, 360, 399, 425, 443, 344, , 348
ESP10, 343, 359, 397, 424, 444, 346, , 350
ESP10, 350, 360, 396, 424, 445, 349, , 353
ESP10, 349, 361, 395, 423, 445, 351, , 355
ESP10, 344, 362, 390, 423, 446, 353, , 357
ESP10, 338, 359, 384, 419, 441, 355, , 359
ESP10, 336, 357, 384, 418, 440, 357, , 361
ESP10, 334, 354, 382, 416, 437, 359, , 363
ESP10, 338, 359, 386, 421, 443, 361, , 365
ESP10, 331, 352, 379, 416, 437, 363, , 367
ESP10, 341, 360, 386, 425, 445, 365, , 369
ESP10, 342, 360, 390, 426, 444, 367, , 371
ESP10, 339, 359, 393, 422, 440, 370, , 374
ESP10, 340, 361, 401, 425, 441, 372, , 376
ESP10, 340, 362, 400, 424, 441, 374, , 378
ESP10, 342, 364, 400, 426, 444, 376, , 380
ESP10, 333, 360, 393, 420, 437, 378, , 382
ESP10, 326, 356, 389, 413, 431, 380, , 384
ESP10, 310, 345, 378, 401, 418, 382, , 386
ESP10, 325, 358, 386, 409, 427, 384, , 388
ESP10, 323, 359, 387, 408, 426, 386, , 390
ESP10, 320, 359, 384, 407, 425, 388, , 392
ESP10, 312, 352, 378, 400, 417, 390, , 394
ESP10, 299, 343, 369, 390, 411, 393, , 397
ESP10, 293, 341, 364, 383, 407, 395, , 399
ESP10, 277, 328, 350, 369, 394, 397, , 401
ESP10, 284, 331, 354, 371, 398, 399, , 403
ESP10, 246, 295, 318, 340, 363, 401, , 405
ESP10, 278, 324, 350, 369, 392, 403, , 407
ESP10, 269, 314, 343, 360, 385, 405, , 409
ESP10, 251, 298, 327, 344, 370, 407, , 411
ESP10, 272, 317, 346, 360, 390, 409, , 413
ESP10, 272, 317, 345, 358, 390, 411, , 415
ESP10, 274, 321, 347, 363, 394, 413, , 417
ESP10, 267, 314, 339, 354, 386, 416, , 420
ESP10, 265, 307, 333, 348, 381, 418, , 422
ESP10, 272, 311, 336, 352, 384, 420, , 424
ESP10, 279, 318, 344, 361, 390, 422, , 426
ESP10, 285, 325, 350, 366, 396, 424, , 428
ESP10, 289, 325, 350, 369, 396, 426, , 430
ESP10, 295, 331, 356, 376, 399, 428, , 432
ESP10, 299, 332, 357, 378, 398, 430, , 434
ESP10, 284, 315, 341, 362, 383, 432, , 436
ESP10, 285, 314, 341, 364, 383, 434, , 438
ESP10, 286, 316, 345, 366, 387, 437, , 441
ESP10, 287, 320, 349, 371, 387, 439, , 443
ESP10, 290, 319, 350, 373, 387, 441, , 445
ESP10, 289, 317, 350, 372, 384, 443, , 447
ESP10, 285, 315, 346, 369, 380, 445, , 449
ESP10, 295, 324, 357, 378, 395, 447, , 451
ESP10, 304, 340, 365, 386, 402, 449, , 453
ESP10, 300, 335, 361, 381, 397, 451, , 455
ESP10, 307, 340, 366, 385, 402, 453, , 457
ESP10, 314, 339, 369, 387, 403, 455, , 459
ESP10, 307, 335, 362, 380, 396, 457, , 461
ESP10, 311, 339, 364, 383, 401, 460, , 464
ESP10, 308, 335, 359, 380, 396, 462, , 466
ESP10, 307, 330, 357, 378, 392, 464, , 468
ESP10, 301, 327, 350, 371, 385, 466, , 470
ESP10, 291, 323, 341, 363, 378, 468, , 472
ESP10, 297, 330, 349, 366, 382, 470, , 474
ESP10, 296, 328, 349, 364, 382, 472, , 476
ESP10, 313, 347, 366, 385, 398, 474, , 478
ESP10, 296, 330, 351, 370, 383, 476, , 480
ESP10, 300, 332, 355, 372, 383, 478, , 482
ESP10, 298, 332, 355, 370, 382, 480, , 484
ESP10, 312, 345, 369, 383, 396, 483, , 487
ESP10, 315, 348, 370, 384, 396, 485, , 489
ESP10, 318, 348, 369, 382, 395, 487, , 491
ESP10, 313, 345, 366, 380, 392, 489, , 493
ESP10, 316, 349, 371, 386, 396, 491, , 495
ESP10, 317, 352, 373, 387, 398, 493, , 497
ESP10, 322, 357, 380, 391, 402, 495, , 499
ESP10, 316, 353, 376, 387, 397, 497, , 501
ESP10, 314, 355, 374, 387, 396, 499, , 503
ESP10, 316, 354, 373, 386, 395, 501, , 505
ESP10, 319, 351, 369, 384, 391, 504, , 508
ESP10, 326, 353, 371, 384, 391, 506, , 510
ESP10, 333, 356, 371, 384, 391, 508, , 512
ESP10, 337, 358, 371, 387, 394, 510, , 514
ESP10, 342, 364, 375, 392, 400, 512, , 516
ESP10, 344, 367, 378, 395, 402, 514, , 518
ESP10, 344, 368, 380, 397, 403, 516, , 520
ESP10, 345, 370, 382, 398, 406, 518, , 522
ESP10, 340, 368, 380, 396, 404, 520, , 524
ESP10, 340, 371, 380, 397, 405, 522, , 526
ESP10, 343, 369, 382, 398, 404, 524, , 528
ESP10, 343, 370, 382, 397, 406, 527, , 531
ESP10, 342, 369, 382, 396, 407, 529, , 533
ESP10, 343, 373, 387, 399, 409, 531, , 535
ESP10, 341, 370, 383, 395, 406, 533, , 537
ESP10, 354, 379, 392, 401, 411, 535, , 539
ESP10, 359, 381, 395, 403, 412, 537, , 541
ESP10, 355, 375, 392, 400, 407, 539, , 543
ESP10, 357, 379, 392, 399, 407, 541, , 545
ESP10, 362, 385, 395, 404, 416, 543, , 547
ESP10, 363, 384, 396, 404, 417, 545, , 549
ESP10, 371, 390, 401, 410, 420, 547, , 551
ESP10, 371, 390, 401, 410, 420, 550, , 554
ESP10, 367, 387, 399, 407, 415, 552, , 556
ESP10, 362, 378, 391, 400, 409, 554, , 558
ESP10, 367, 384, 396, 404, 412, 556, , 560
ESP10, 361, 378, 388, 396, 404, 558, , 562
ESP10, 360, 376, 388, 395, 402, 560, , 564
ESP10, 368, 383, 392, 403, 406, 562, , 566
ESP10, 367, 384, 393, 402, 405, 564, , 568
ESP10, 366, 382, 391, 399, 400, 566, , 570
ESP10, 357, 372, 382, 389, 392, 568, , 572
ESP10, 359, 369, 380, 386, 388, 571, , 575
ESP10, 377, 384, 395, 400, 403, 573, , 577
ESP10, 370, 378, 389, 394, 397, 575, , 579
ESP10, 372, 381, 389, 395, 398, 577, , 581
ESP10, 374, 383, 389, 395, 398, 579, , 583
ESP10, 373, 382, 389, 392, 396, 581, , 585
ESP10, 367, 379, 385, 390, 392, 583, , 587
ESP10, 367, 379, 385, 390, 392, 585, , 589
ESP10, 374, 386, 390, 396, 397, 587, , 591
ESP10, 389, 395, 399, 404, 405, 589, , 593
ESP10, 391, 395, 399, 402, 404, 591, , 595
ESP10, 394, 399, 402, 405, 406, 594, , 598
ESP10, 393, 398, 401, 402, 404, 596, , 600
ESP10, 397, 401, 403, 404, 405, 598, , 602
ESP10, 397, 400, 403, 404, 405, 600, , 604
ESP10, 399, 402, 404, 405, 406, 602, , 606
ESP10, 400, 403, 405, 406, 406, 604, , 608
ESP10, 400, 403, 404, 406, 406, 606, , 610
ESP10, 399, 402, 403, 404, 405, 608, , 612
ESP10, 398, 400, 402, 403, 403, 610, , 614
ESP10, 397, 399, 400, 401, 402, 612, , 616
ESP10, 397, 399, 400, 401, 402, 614, , 618
ESP10, 397, 399, 400, 401, 401, 617, , 621
ESP10, 396, 399, 399, 400, 401, 619, , 623
ESP10, 394, 397, 398, 399, 400, 621, , 625
ESP10, 394, 397, 397, 398, 399, 623, , 627
ESP10, 394, 396, 397, 398, 399, 625, , 629
ESP10, 389, 392, 393, 394, 394, 627, , 631
ESP10, 385, 388, 389, 390, 391, 629, , 633
ESP10, 378, 382, 383, 384, 384, 631, , 635
ESP10, 361, 365, 367, 368, 369, 633, , 637
ESP10, 369, 372, 373, 374, 375, 635, , 639
ESP10, 373, 375, 377, 377, 378, 638, , 642
ESP10, 378, 379, 380, 381, 382, 640, , 644
ESP10, 377, 378, 379, 380, 381, 642, , 646
ESP10, 378, 379, 380, 381, 381, 644, , 648
ESP10, 380, 381, 382, 383, 383, 646, , 650
ESP10, 380, 381, 382, 383, 383, 648, , 652
ESP10, 380, 381, 382, 382, 383, 650, , 654
ESP10, 380, 380, 382, 382, 383, 652, , 656
ESP10, 380, 380, 381, 382, 383, 654, , 658
ESP10, 380, 380, 381, 382, 383, 656, , 660
ESP10, 379, 379, 381, 381, 382, 658, , 662
ESP10, 380, 380, 381, 382, 383, 661, , 665
ESP10, 380, 380, 382, 382, 383, 663, , 667
ESP10, 380, 380, 381, 382, 383, 665, , 669
ESP10, 380, 380, 382, 382, 383, 667, , 671
ESP10, 380, 380, 381, 382, 383, 669, , 673
ESP10, 380, 380, 381, 382, 383, 671, , 675
ESP10, 379, 380, 381, 382, 382, 673, , 677
ESP10, 379, 380, 381, 382, 382, 675, , 679
ESP10, 379, 380, 381, 381, 382, 677, , 681
ESP10, 379, 380, 381, 382, 382, 679, , 683
ESP10, 380, 380, 381, 382, 382, 681, , 685
ESP10, 380, 380, 381, 382, 382, 684, , 688
ESP10, 380, 381, 382, 382, 383, 686, , 690
ESP10, 380, 381, 382, 382, 383, 688, , 692
ESP10, 381, 381, 383, 383, 383, 690, , 694
ESP10, 381, 382, 383, 383, 384, 692, , 696
ESP10, 382, 382, 383, 384, 384, 694, , 698
ESP10, 382, 382, 383, 384, 384, 696, , 700
ESP10, 381, 382, 383, 383, 384, 698, , 702
ESP10, 382, 382, 383, 384, 384, 700, , 704
ESP10, 382, 382, 383, 384, 384, 702, , 706
ESP10, 381, 382, 383, 384, 384, 705, , 709
ESP10, 382, 382, 383, 384, 384, 707, , 711
ESP10, 382, 383, 384, 384, 384, 709, , 713
ESP10, 382, 383, 384, 384, 384, 711, , 715
ESP10, 382, 383, 384, 384, 384, 713, , 717
ESP10, 382, 383, 384, 384, 384, 715, , 719
ESP10, 382, 383, 384, 384, 385, 717, , 721
ESP10, 382, 383, 384, 384, 385, 719, , 723
ESP10, 382, 383, 384, 384, 384, 721, , 725
ESP10, 382, 383, 384, 384, 384, 723, , 727
ESP10, 382, 383, 383, 384, 384, 725, , 729
ESP10, 382, 383, 383, 384, 384, 728, , 732
ESP10, 383, 383, 384, 384, 384, 730, , 734
ESP10, 382, 383, 383, 384, 384, 732, , 736
ESP10, 383, 383, 384, 384, 384, 734, , 738
Max Scale
Scale To Data
Scale To Last 45 Days
Show Min/Max Ensemble Volume
Show Tooltips Help
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ESP10
HEFS
ESP0
Data Files
/chpsesp/ensemble/watersupply/SRGM8W_SQIN.ESPF10.csv
SRGM8W_SQIN.ESPF0.csv|2026-08-15
SRGM8W_SQIN.ESPF10.csv|2026-08-15
SRGM8W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
CLARK FORK - AT ST REGIS
(
SRGM8
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-15
Issued:
2026-08-15
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
2330
3423
91
5535
3771
APR-JUL
2073
3019
88
5014
3429
APR-AUG
2207
3234
90
5311
3610
JAN-SEP
2772
3947
89
6114
4451
JAN-JUL
2516
3555
87
5593
4109
OCT-SEP
3255
4458
88
6728
5042
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/SRGM8W_SQIN.ESPF10.csv
SRGM8W_SQIN.ESPF0.csv|2026-08-15
SRGM8W_SQIN.ESPF10.csv|2026-08-15
SRGM8W_SQIN.ESPFM.csv|2026-08-15
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
