MONTANA FLOW REPORT

Last Updated: December 19, 2025

Montana's river systems are currently exhibiting a notable diversity in streamflow conditions, with several areas experiencing significant deviations from normal flows. River enthusiasts should be aware that while some rivers like the Swiftcurrent Creek at Many Glacier are running high at 372.38% of the normal flow, others like the Missouri River near Landusky are also above average with a streamflow of 9100 cubic feet per second (cfs), indicating a 32.21% increase. This suggests increased opportunities for whitewater activities in certain corridors but also raises concerns for potential flooding near affected communities and watersheds. Conversely, the Beaverhead River near Twin Bridges and the Big Hole River near Wise River are reporting low flows, at -24.62% and -53.01% of the normal respectively, indicative of possible flow drought conditions that could impact local ecosystems and water availability.

The state capital, Helena, situated along the Missouri River, should monitor for any changes in the water levels, as any significant rise in the Missouri's current streamflow of 3120 cfs could hint at flood risks. In contrast, the Sun River near Vaughn is experiencing a notable decrease at -30.84% of normal flow, suggesting a watchful eye for low water conditions that may affect agricultural and recreational uses. The Missoula region, near the confluence of the Blackfoot and Clark Fork Rivers, is observing mixed conditions, with the Blackfoot River near Bonner showing high streamflows at 146.12% of normal, whereas the Clark Fork below Missoula is at 139.38% of normal, both of which could influence the accessibility for fishing and rafting communities. The Middle Fork Flathead River near West Glacier, popular among whitewater enthusiasts, is flowing at a substantial 409.16% of normal, warranting attention for safety due to rapid water level changes that could impact conditions on popular trails. Overall, Montana's rivers present a patchwork of conditions that demand a careful and informed approach to water-based recreation and resource management in the upcoming season.

       



Montana has a varied climate and terrain that greatly affects its flow conditions. The state boasts of major rivers such as the Missouri, Yellowstone, and the Clark Fork, which drain into the Mississippi, Missouri, and Columbia Rivers, respectively. Montana also has a number of reservoirs/dams, such as the Fort Peck Dam and the Hungry Horse Dam, which serve as major power sources and water storage for the state. The state's hydrology is influenced by its mountainous terrain, which leads to high precipitation levels and generates snowpacks. These snowpacks, in turn, largely determine the state's flow conditions in the summer months. Montana's flow conditions are also affected by its climate, which is characterized by dry summers and cold winters. Overall, Montana's flow conditions are shaped by a mix of climatic and topographic factors, including watershed, snowpack, and precipitation.


       

Winter Storm Warnings

December 19 2025

Montana residents are advised to exercise caution as multiple High Wind Warnings are in effect until this afternoon, with gusts reaching up to 80 mph in areas including the Beartooth Foothills and Livingston, making travel treacherous along Interstate 90 from Livingston to Big Timber. The Judith Gap, Melville Foothills, and Northern Sweet Grass are also experiencing severe crosswinds. Additionally, the Absaroka/Beartooth Mountains are under a Winter Storm Warning with heavy snowfall and avalanche risks. Mixed precipitation and freezing rain advisories impact Wibaux County and northeast Montana, with hazardous conditions for the morning commute. Please stay indoors if possible and avoid affected routes.


Rafting & Kayaking

River Run Status Streamflow (CFS) Air Temp (F)
Alberton Gorge (St. John to Forrest Grove)
Class III to IV
33.44
Bear Creek to Essex
Class II to III+
RUNNABLE 445 55
Beartrap Canyon - Madison Dam to Route 84
Class III to IV
RUNNABLE 1030 46
Bible Run
Class III to IV
RUNNABLE 529 54
Big Creek to Glacier Rim
Class III- to III
RUNNABLE 1380 47
Border to Polebridge
Class II to II+
TOO LOW 432 45
Camp Baker to Eden Bridge
Class II to II+
RUNNABLE 1970 41
Essex to Moccasin Creek
Class II+
RUNNABLE 1290 49
Gardiner Town Run
Class III- to III+
RUNNABLE 1080 43
Glacier RIm to Blankenship Bridge and Confluence
Class II
RUNNABLE 4590 49
Missoula Town Run
Class II to II+
RUNNABLE 958 49
Moccasin Creek to West Glacier (John Stevens Canyon)
Class II+ to III+
RUNNABLE 4310 53
Moose to Storm Castle
Class III+ to IV+
RUNNABLE 308 51
Polebridge to Big Creek
Class II to III-
RUNNABLE 4590 49
Schafer Meadows to Bear Creek (Upper)
Class III+ to IV+
RUNNABLE 4310 53
West Glacier to Blankenship Bridge
Class II+ to III
RUNNABLE 4310 53
Yankee Jim Canyon (Joe Brown to Miner)
Class III to III+
RUNNABLE 1080 43
       
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