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FLATHEAD - AT COLUMBIA FALLS
(
CFMM8
)
Forecasts for Water Year
2026
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
5251
5251
93
5259
5634
APR-JUL
4932
4932
94
4932
5237
APR-AUG
5113
5113
93
5113
5473
JAN-SEP
6668
6668
107
6676
6244
JAN-JUL
6349
6349
109
6349
5847
OCT-SEP
8012
8013
116
8021
6906
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
APR-SEP
5251
5251
93
5265
5634
APR-JUL
4932
4932
94
4932
5237
APR-AUG
5113
5113
93
5113
5473
JAN-SEP
6668
6668
107
6682
6244
JAN-JUL
6349
6349
109
6349
5847
OCT-SEP
8012
8013
116
8027
6906
Reference
ESP with 0 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
APR-SEP
5251
5252
93
5276
5634
APR-JUL
4932
4932
94
4932
5237
APR-AUG
5113
5113
93
5114
5473
JAN-SEP
6668
6669
107
6693
6244
JAN-JUL
6349
6349
109
6349
5847
OCT-SEP
8012
8014
116
8038
6906
Move the mouse over the desired "Forecast Period" to display a graph.
ESP10, 201, 277, 345, 420, 454, 70, , 74
ESP10, 202, 278, 346, 416, 450, 72, , 76
ESP10, 203, 277, 347, 415, 457, 74, , 78
ESP10, 204, 277, 346, 414, 455, 76, , 80
ESP10, 208, 276, 346, 413, 454, 78, , 82
ESP10, 201, 267, 338, 404, 453, 81, , 85
ESP10, 206, 272, 343, 408, 459, 83, , 87
ESP10, 210, 272, 345, 409, 461, 85, , 89
ESP10, 210, 272, 345, 409, 463, 87, , 91
ESP10, 206, 269, 341, 404, 458, 89, , 93
ESP10, 210, 267, 337, 401, 458, 91, , 95
ESP10, 220, 276, 346, 408, 466, 93, , 97
ESP10, 221, 278, 346, 408, 470, 95, , 99
ESP10, 220, 278, 345, 407, 470, 97, , 101
ESP10, 215, 273, 341, 402, 466, 99, , 103
ESP10, 206, 266, 336, 394, 458, 101, , 105
ESP10, 198, 267, 329, 388, 451, 103, , 107
ESP10, 204, 277, 335, 392, 456, 106, , 110
ESP10, 199, 273, 332, 389, 450, 108, , 112
ESP10, 205, 279, 335, 398, 453, 110, , 114
ESP10, 194, 285, 325, 390, 443, 112, , 116
ESP10, 200, 290, 333, 395, 447, 114, , 118
ESP10, 196, 282, 327, 387, 449, 116, , 120
ESP10, 212, 289, 334, 399, 457, 118, , 122
ESP10, 216, 287, 336, 395, 460, 120, , 124
ESP10, 212, 281, 334, 392, 460, 122, , 126
ESP10, 213, 281, 338, 392, 461, 124, , 128
ESP10, 218, 283, 342, 398, 466, 126, , 130
ESP10, 217, 277, 336, 392, 461, 129, , 133
ESP10, 203, 261, 322, 376, 446, 131, , 135
ESP10, 209, 265, 328, 382, 451, 133, , 137
ESP10, 213, 265, 330, 387, 453, 135, , 139
ESP10, 204, 254, 325, 378, 443, 137, , 141
ESP10, 215, 261, 338, 389, 450, 139, , 143
ESP10, 216, 264, 338, 389, 449, 141, , 145
ESP10, 219, 267, 338, 391, 456, 143, , 147
ESP10, 221, 265, 336, 391, 454, 145, , 149
ESP10, 216, 257, 333, 381, 444, 147, , 151
ESP10, 222, 261, 341, 386, 448, 149, , 153
ESP10, 221, 263, 342, 384, 446, 151, , 155
ESP10, 222, 267, 342, 388, 446, 154, , 158
ESP10, 233, 280, 350, 398, 452, 156, , 160
ESP10, 236, 280, 348, 396, 450, 158, , 162
ESP10, 238, 285, 354, 400, 450, 160, , 164
ESP10, 227, 273, 346, 391, 439, 162, , 166
ESP10, 235, 280, 356, 399, 448, 164, , 168
ESP10, 221, 267, 345, 387, 435, 166, , 170
ESP10, 235, 281, 360, 403, 450, 168, , 172
ESP10, 233, 275, 354, 400, 455, 170, , 174
ESP10, 239, 277, 360, 405, 458, 172, , 176
ESP10, 232, 270, 351, 400, 449, 174, , 178
ESP10, 238, 273, 352, 402, 455, 177, , 181
ESP10, 238, 265, 344, 393, 445, 179, , 183
ESP10, 247, 277, 355, 400, 453, 181, , 185
ESP10, 236, 271, 345, 393, 447, 183, , 187
ESP10, 240, 272, 345, 392, 453, 185, , 189
ESP10, 238, 271, 346, 387, 454, 187, , 191
ESP10, 236, 268, 344, 384, 452, 189, , 193
ESP10, 240, 275, 348, 387, 454, 191, , 195
ESP10, 228, 263, 334, 381, 442, 193, , 197
ESP10, 212, 252, 318, 372, 428, 195, , 199
ESP10, 221, 263, 327, 379, 438, 197, , 201
ESP10, 199, 241, 308, 360, 418, 199, , 203
ESP10, 179, 222, 292, 342, 402, 202, , 206
ESP10, 185, 228, 299, 350, 407, 204, , 208
ESP10, 187, 228, 306, 350, 407, 206, , 210
ESP10, 198, 238, 319, 359, 416, 208, , 212
ESP10, 184, 223, 307, 344, 402, 210, , 214
ESP10, 156, 196, 278, 316, 377, 212, , 216
ESP10, 148, 190, 269, 306, 370, 214, , 218
ESP10, 143, 188, 265, 303, 370, 216, , 220
ESP10, 151, 198, 276, 312, 381, 218, , 222
ESP10, 161, 212, 287, 322, 389, 220, , 224
ESP10, 161, 207, 282, 315, 388, 222, , 226
ESP10, 174, 218, 295, 329, 401, 225, , 229
ESP10, 179, 220, 299, 336, 404, 227, , 231
ESP10, 196, 239, 314, 355, 421, 229, , 233
ESP10, 200, 243, 314, 354, 419, 231, , 235
ESP10, 207, 249, 319, 358, 424, 233, , 237
ESP10, 204, 249, 319, 355, 421, 235, , 239
ESP10, 210, 257, 326, 359, 425, 237, , 241
ESP10, 213, 261, 327, 361, 426, 239, , 243
ESP10, 223, 275, 337, 378, 436, 241, , 245
ESP10, 229, 276, 338, 379, 436, 243, , 247
ESP10, 227, 268, 332, 369, 428, 245, , 249
ESP10, 228, 267, 332, 372, 430, 248, , 252
ESP10, 228, 272, 331, 373, 429, 250, , 254
ESP10, 235, 279, 336, 380, 433, 252, , 256
ESP10, 240, 281, 337, 384, 432, 254, , 258
ESP10, 243, 284, 338, 384, 433, 256, , 260
ESP10, 251, 295, 343, 393, 440, 258, , 262
ESP10, 247, 290, 340, 388, 434, 260, , 264
ESP10, 251, 289, 337, 386, 430, 262, , 266
ESP10, 256, 293, 341, 387, 432, 264, , 268
ESP10, 252, 287, 336, 381, 426, 266, , 270
ESP10, 247, 283, 334, 380, 424, 268, , 272
ESP10, 246, 282, 335, 379, 425, 270, , 274
ESP10, 252, 288, 340, 382, 430, 273, , 277
ESP10, 259, 294, 347, 387, 434, 275, , 279
ESP10, 260, 300, 349, 392, 435, 277, , 281
ESP10, 264, 302, 356, 397, 436, 279, , 283
ESP10, 266, 304, 357, 398, 436, 281, , 285
ESP10, 266, 307, 358, 399, 436, 283, , 287
ESP10, 259, 302, 352, 394, 432, 285, , 289
ESP10, 263, 307, 355, 396, 442, 287, , 291
ESP10, 264, 305, 353, 394, 440, 289, , 293
ESP10, 266, 307, 354, 395, 440, 291, , 295
ESP10, 269, 311, 357, 400, 442, 293, , 297
ESP10, 265, 313, 357, 398, 443, 296, , 300
ESP10, 276, 325, 367, 407, 453, 298, , 302
ESP10, 276, 327, 368, 407, 452, 300, , 304
ESP10, 277, 331, 372, 408, 453, 302, , 306
ESP10, 276, 334, 372, 407, 453, 304, , 308
ESP10, 280, 342, 375, 411, 456, 306, , 310
ESP10, 279, 347, 375, 411, 457, 308, , 312
ESP10, 286, 350, 375, 413, 458, 310, , 314
ESP10, 291, 350, 376, 414, 461, 312, , 316
ESP10, 299, 347, 376, 414, 459, 314, , 318
ESP10, 301, 345, 376, 412, 458, 316, , 320
ESP10, 302, 350, 380, 411, 459, 318, , 322
ESP10, 307, 350, 381, 413, 460, 321, , 325
ESP10, 307, 344, 380, 409, 455, 323, , 327
ESP10, 306, 342, 379, 409, 453, 325, , 329
ESP10, 306, 341, 378, 410, 453, 327, , 331
ESP10, 319, 347, 384, 416, 458, 329, , 333
ESP10, 317, 354, 383, 415, 457, 331, , 335
ESP10, 312, 349, 378, 411, 451, 333, , 337
ESP10, 314, 348, 377, 412, 449, 335, , 339
ESP10, 310, 344, 373, 406, 442, 337, , 341
ESP10, 319, 360, 385, 417, 452, 339, , 343
ESP10, 324, 363, 386, 421, 456, 341, , 345
ESP10, 326, 364, 389, 423, 461, 344, , 348
ESP10, 321, 360, 390, 419, 465, 346, , 350
ESP10, 330, 365, 394, 422, 472, 348, , 352
ESP10, 331, 360, 392, 418, 470, 350, , 354
ESP10, 330, 359, 390, 420, 468, 352, , 356
ESP10, 328, 356, 388, 423, 465, 354, , 358
ESP10, 328, 357, 388, 426, 466, 356, , 360
ESP10, 323, 352, 381, 421, 459, 358, , 362
ESP10, 327, 356, 385, 426, 462, 360, , 364
ESP10, 321, 350, 380, 422, 462, 362, , 366
ESP10, 321, 348, 380, 420, 461, 364, , 368
ESP10, 317, 340, 377, 412, 454, 366, , 370
ESP10, 320, 340, 378, 412, 453, 369, , 373
ESP10, 328, 347, 383, 419, 456, 371, , 375
ESP10, 337, 357, 392, 426, 462, 373, , 377
ESP10, 339, 363, 396, 430, 464, 375, , 379
ESP10, 338, 363, 396, 430, 463, 377, , 381
ESP10, 337, 363, 395, 428, 461, 379, , 383
ESP10, 326, 360, 389, 419, 452, 381, , 385
ESP10, 335, 368, 398, 428, 459, 383, , 387
ESP10, 331, 365, 393, 424, 454, 385, , 389
ESP10, 325, 362, 388, 419, 450, 387, , 391
ESP10, 319, 356, 382, 414, 444, 389, , 393
ESP10, 317, 358, 381, 412, 439, 392, , 396
ESP10, 314, 355, 377, 407, 433, 394, , 398
ESP10, 304, 345, 366, 398, 423, 396, , 400
ESP10, 307, 348, 370, 402, 425, 398, , 402
ESP10, 294, 337, 359, 391, 411, 400, , 404
ESP10, 307, 352, 372, 403, 424, 402, , 406
ESP10, 319, 364, 388, 412, 434, 404, , 408
ESP10, 320, 365, 387, 414, 433, 406, , 410
ESP10, 323, 367, 391, 417, 436, 408, , 412
ESP10, 328, 375, 397, 424, 442, 410, , 414
ESP10, 323, 370, 394, 423, 438, 412, , 416
ESP10, 317, 365, 389, 417, 433, 414, , 418
ESP10, 310, 359, 382, 410, 428, 417, , 421
ESP10, 311, 360, 383, 411, 429, 419, , 423
ESP10, 312, 356, 380, 407, 426, 421, , 425
ESP10, 313, 356, 379, 405, 424, 423, , 427
ESP10, 315, 354, 380, 402, 422, 425, , 429
ESP10, 313, 348, 379, 396, 417, 427, , 431
ESP10, 315, 350, 382, 398, 420, 429, , 433
ESP10, 306, 339, 371, 389, 413, 431, , 435
ESP10, 308, 340, 371, 393, 414, 433, , 437
ESP10, 305, 340, 371, 392, 412, 435, , 439
ESP10, 303, 335, 368, 388, 404, 437, , 441
ESP10, 308, 340, 374, 398, 410, 440, , 444
ESP10, 308, 342, 378, 400, 412, 442, , 446
ESP10, 309, 341, 378, 401, 413, 444, , 448
ESP10, 310, 340, 379, 402, 417, 446, , 450
ESP10, 310, 340, 378, 402, 416, 448, , 452
ESP10, 309, 338, 375, 399, 412, 450, , 454
ESP10, 318, 349, 383, 408, 423, 452, , 456
ESP10, 322, 354, 382, 409, 424, 454, , 458
ESP10, 317, 351, 378, 405, 421, 456, , 460
ESP10, 317, 353, 378, 404, 423, 458, , 462
ESP10, 321, 359, 382, 408, 429, 460, , 464
ESP10, 317, 357, 380, 404, 426, 462, , 466
ESP10, 313, 352, 376, 399, 418, 465, , 469
ESP10, 311, 350, 374, 396, 415, 467, , 471
ESP10, 316, 354, 379, 400, 419, 469, , 473
ESP10, 326, 363, 389, 410, 430, 471, , 475
ESP10, 318, 357, 381, 403, 423, 473, , 477
ESP10, 318, 358, 383, 403, 422, 475, , 479
ESP10, 319, 363, 389, 404, 423, 477, , 481
ESP10, 305, 350, 376, 393, 409, 479, , 483
ESP10, 324, 361, 387, 404, 420, 481, , 485
ESP10, 326, 357, 386, 402, 417, 483, , 487
ESP10, 336, 361, 391, 407, 422, 485, , 489
ESP10, 338, 360, 392, 406, 421, 488, , 492
ESP10, 339, 357, 389, 406, 419, 490, , 494
ESP10, 340, 357, 391, 405, 419, 492, , 496
ESP10, 338, 356, 389, 407, 419, 494, , 498
ESP10, 331, 352, 385, 402, 415, 496, , 500
ESP10, 328, 351, 384, 402, 412, 498, , 502
ESP10, 327, 347, 383, 398, 409, 500, , 504
ESP10, 324, 344, 380, 398, 405, 502, , 506
ESP10, 323, 345, 378, 398, 405, 504, , 508
ESP10, 322, 347, 378, 398, 405, 506, , 510
ESP10, 325, 349, 379, 400, 408, 508, , 512
ESP10, 329, 357, 389, 406, 415, 510, , 514
ESP10, 342, 374, 402, 420, 430, 513, , 517
ESP10, 340, 374, 403, 420, 429, 515, , 519
ESP10, 339, 370, 398, 416, 425, 517, , 521
ESP10, 337, 368, 397, 414, 424, 519, , 523
ESP10, 334, 364, 395, 410, 423, 521, , 525
ESP10, 332, 363, 394, 409, 422, 523, , 527
ESP10, 334, 358, 389, 405, 418, 525, , 529
ESP10, 336, 358, 391, 406, 419, 527, , 531
ESP10, 339, 360, 392, 406, 418, 529, , 533
ESP10, 340, 360, 388, 405, 416, 531, , 535
ESP10, 338, 359, 384, 400, 411, 533, , 537
ESP10, 344, 362, 393, 406, 414, 536, , 540
ESP10, 327, 345, 379, 390, 399, 538, , 542
ESP10, 334, 356, 388, 400, 407, 540, , 544
ESP10, 326, 354, 380, 392, 400, 542, , 546
ESP10, 322, 351, 376, 390, 398, 544, , 548
ESP10, 324, 356, 382, 392, 399, 546, , 550
ESP10, 328, 361, 383, 394, 400, 548, , 552
ESP10, 319, 358, 378, 386, 392, 550, , 554
ESP10, 317, 354, 375, 383, 388, 552, , 556
ESP10, 321, 353, 372, 380, 386, 554, , 558
ESP10, 312, 343, 361, 368, 376, 556, , 560
ESP10, 318, 349, 366, 372, 380, 558, , 562
ESP10, 318, 349, 367, 373, 379, 561, , 565
ESP10, 312, 346, 360, 368, 372, 563, , 567
ESP10, 332, 364, 378, 385, 390, 565, , 569
ESP10, 323, 341, 357, 366, 369, 567, , 571
ESP10, 316, 331, 347, 356, 360, 569, , 573
ESP10, 330, 347, 360, 370, 375, 571, , 575
ESP10, 327, 346, 360, 367, 372, 573, , 577
ESP10, 326, 345, 357, 367, 371, 575, , 579
ESP10, 323, 341, 356, 364, 367, 577, , 581
ESP10, 320, 339, 356, 362, 365, 579, , 583
ESP10, 310, 323, 338, 346, 348, 581, , 585
ESP10, 319, 332, 346, 352, 356, 584, , 588
ESP10, 324, 338, 351, 358, 363, 586, , 590
ESP10, 339, 355, 364, 372, 376, 588, , 592
ESP10, 340, 351, 359, 367, 372, 590, , 594
ESP10, 344, 356, 360, 368, 372, 592, , 596
ESP10, 352, 360, 365, 371, 373, 594, , 598
ESP10, 356, 363, 368, 372, 375, 596, , 600
ESP10, 354, 362, 367, 371, 373, 598, , 602
ESP10, 357, 363, 370, 372, 375, 600, , 604
ESP10, 360, 366, 372, 374, 376, 602, , 606
ESP10, 361, 366, 373, 375, 376, 604, , 608
ESP10, 361, 367, 372, 375, 376, 607, , 611
ESP10, 359, 366, 371, 373, 374, 609, , 613
ESP10, 361, 369, 373, 375, 376, 611, , 615
ESP10, 361, 369, 372, 375, 375, 613, , 617
ESP10, 360, 367, 371, 373, 373, 615, , 619
ESP10, 359, 367, 370, 372, 373, 617, , 621
ESP10, 356, 363, 366, 367, 368, 619, , 623
ESP10, 356, 363, 365, 367, 367, 621, , 625
ESP10, 360, 366, 368, 369, 369, 623, , 627
ESP10, 354, 360, 362, 363, 363, 625, , 629
ESP10, 350, 356, 357, 358, 358, 627, , 631
ESP10, 343, 349, 350, 351, 351, 629, , 633
ESP10, 335, 340, 342, 342, 343, 632, , 636
ESP10, 339, 344, 345, 346, 346, 634, , 638
ESP10, 348, 352, 353, 354, 354, 636, , 640
ESP10, 348, 351, 352, 353, 353, 638, , 642
ESP10, 346, 349, 350, 350, 350, 640, , 644
ESP10, 345, 348, 349, 350, 350, 642, , 646
ESP10, 343, 345, 346, 347, 347, 644, , 648
ESP10, 342, 344, 345, 346, 346, 646, , 650
ESP10, 342, 344, 345, 346, 346, 648, , 652
ESP10, 342, 344, 345, 345, 345, 650, , 654
ESP10, 342, 344, 345, 345, 345, 652, , 656
ESP10, 342, 344, 345, 345, 345, 655, , 659
ESP10, 343, 344, 345, 345, 345, 657, , 661
ESP10, 342, 343, 344, 344, 344, 659, , 663
ESP10, 342, 343, 344, 344, 345, 661, , 665
ESP10, 342, 343, 344, 344, 345, 663, , 667
ESP10, 341, 343, 344, 344, 345, 665, , 669
ESP10, 342, 343, 344, 344, 345, 667, , 671
ESP10, 342, 344, 344, 345, 345, 669, , 673
ESP10, 342, 344, 344, 345, 345, 671, , 675
ESP10, 342, 344, 344, 345, 345, 673, , 677
ESP10, 342, 344, 344, 344, 345, 675, , 679
ESP10, 342, 344, 345, 345, 345, 677, , 681
ESP10, 342, 344, 345, 345, 345, 680, , 684
ESP10, 343, 344, 345, 345, 345, 682, , 686
ESP10, 343, 344, 345, 345, 345, 684, , 688
ESP10, 343, 344, 345, 345, 345, 686, , 690
ESP10, 343, 345, 345, 345, 346, 688, , 692
ESP10, 343, 345, 345, 346, 346, 690, , 694
ESP10, 343, 345, 346, 346, 346, 692, , 696
ESP10, 346, 347, 348, 348, 348, 694, , 698
ESP10, 346, 348, 348, 348, 348, 696, , 700
ESP10, 346, 348, 348, 349, 349, 698, , 702
ESP10, 346, 348, 348, 349, 349, 700, , 704
ESP10, 347, 348, 349, 349, 349, 703, , 707
ESP10, 347, 348, 349, 349, 349, 705, , 709
ESP10, 347, 349, 349, 349, 349, 707, , 711
ESP10, 348, 349, 349, 350, 350, 709, , 713
ESP10, 348, 349, 350, 350, 350, 711, , 715
ESP10, 348, 349, 350, 350, 350, 713, , 717
ESP10, 350, 351, 351, 351, 351, 715, , 719
ESP10, 350, 351, 351, 351, 351, 717, , 721
ESP10, 350, 351, 351, 351, 351, 719, , 723
ESP10, 350, 351, 351, 351, 351, 721, , 725
ESP10, 349, 351, 351, 351, 351, 723, , 727
ESP10, 350, 351, 351, 351, 351, 725, , 729
ESP10, 351, 351, 351, 352, 352, 728, , 732
ESP10, 351, 351, 352, 352, 352, 730, , 734
ESP10, 350, 351, 351, 351, 351, 732, , 736
ESP10, 351, 351, 351, 351, 351, 734, , 738
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/CFMM8W_SQIN.ESPF10.csv
CFMM8W_SQIN.ESPF0.csv|2026-08-16
CFMM8W_SQIN.ESPF10.csv|2026-08-16
CFMM8W_SQIN.ESPFM.csv|2026-08-16
APR-SEP
FLATHEAD - AT COLUMBIA FALLS
(
CFMM8
)
Forecasts for Water Year
2027
Official Water Supply
ESP with 10 Days QPF
Ensemble:
2026-08-16
Issued:
2026-08-16
Hide Forecast
Forecast
Period
Forecasts Are in KAF
30 Year
Average
(1991-2020)
90 %
50 %
%
Average
10 %
APR-SEP
3814
5405
96
7530
5634
APR-JUL
3457
4990
95
6934
5237
APR-AUG
3669
5225
95
7329
5473
JAN-SEP
4106
6000
96
7865
6244
JAN-JUL
3762
5428
93
7342
5847
OCT-SEP
4409
6431
93
8747
6906
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/CFMM8W_SQIN.ESPF10.csv
CFMM8W_SQIN.ESPF0.csv|2026-08-16
CFMM8W_SQIN.ESPF10.csv|2026-08-16
CFMM8W_SQIN.ESPFM.csv|2026-08-16
APR-SEP
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ESP10,ESPM,ESP0
ESP10,ESPM,ESP0
Last Forecast
