NF FLATHEAD - NEAR COLUMBIA FALLS
Forecasts For Water Year 2026
Official Water Supply
ESP with 10 days QPF
Ensemble: 2026-09-03 Issued: 2026-09-03
Forecast
Period
Forecasts Are in KAF Obs Runoff
(2026-09-03)
30 Year
Average
(1991-2020)
90 % 50 % %
Average
10 %
OCT 38 68
NOV 107 84
DEC 234 59
JAN 118 49
FEB 67 45
MAR 214 77
APR 292 222
MAY 594 585
JUN 465 563
JUL 214 230
AUG 67 90
SEP 46 46 76 47 3.3* 60
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
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NF FLATHEAD - NEAR COLUMBIA FALLS
Forecasts For Water Year 2026
Experimental Water Supply
HEFS with 15 days EQPF
Ensemble: 2026-09-03 Issued: 2026-09-03
Forecast
Period
Forecasts Are in KAF Obs Runoff
(2026-09-03)
30 Year
Average
(1991-2020)
90 % 50 % %
Average
10 %
OCT 38 68
NOV 107 84
DEC 234 59
JAN 118 49
FEB 67 45
MAR 214 77
APR 292 222
MAY 594 585
JUN 465 563
JUL 214 230
AUG 67 90
SEP 46 46 77 78 3.3* 60
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
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NF FLATHEAD - NEAR COLUMBIA FALLS
Forecasts For Water Year 2026
Reference
ESP with 0 days QPF
Ensemble: 2026-09-03 Issued: 2026-09-03
Forecast
Period
Forecasts Are in KAF Obs Runoff
(2026-09-03)
30 Year
Average
(1991-2020)
90 % 50 % %
Average
10 %
OCT 38 68
NOV 107 84
DEC 234 59
JAN 118 49
FEB 67 45
MAR 214 77
APR 292 222
MAY 594 585
JUN 465 563
JUL 214 230
AUG 67 90
SEP 46 46 76 48 3.3* 60
Move the mouse over the desired "Forecast Table" to update graph.
* Partial Monthly Total
CSV
Download