MONTANA FLOW REPORT

Last Updated: December 24, 2025

Montana's river systems are experiencing a dynamic period, with river and streamflow conditions varying widely across the state. Several waterways are experiencing above-normal streamflows, particularly the St. Mary River near Babb, which is running at 366.58% of its normal flow, and the Marias River near Shelby, where streamflows have surged to 202.41% of normal, potentially signaling flooding risks. Contrastingly, the Jefferson River near Twin Bridges and the Missouri River near Great Falls are flowing below normal, at 85.61% and 72.63% respectively, indicating potential areas of flow drought. Enthusiasts and communities along these rivers should remain alert, as changing conditions could affect recreational activities and local water resources.

Specifically noteworthy is the Smith River near Ft Logan, where an extraordinary streamflow change of 403.97% in the last 24 hours has brought its streamflow to 127 cfs, highlighting a significant increase that could impact rafting trails. Additionally, the high streamflow of the Kootenai River below Libby Dam, peaking at 22,100 cfs, suggests strong currents that could attract whitewater adventurers but also pose risks. The Clark Fork River, a significant waterway running through Missoula, shows a mixed picture with the flow near Drummond being stable while the stretch below Missoula has decreased slightly to 5,240 cfs, maintaining 95.1% of its typical flow. With the variability in river conditions, individuals in or around these water systems, including outdoor enthusiasts and residents, should monitor streamflow data and heed any advisories from local authorities to ensure safety and make the most of Montana's diverse river landscape.

       



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 24 2025

Residents of Montana, please take caution as multiple weather advisories are in effect today. Dense fog is reducing visibility to a quarter mile in the Missoula and Bitterroot Valleys until 8 AM MST, making driving conditions dangerous. Additionally, a winter storm watch is in place for areas including Eastern Pondera and Teton Counties, as well as Cascade County below 5000ft, with expectations of snow, freezing rain, and ice accumulations, which could lead to slippery roads and power outages. High winds are also forecasted for the Madison River Valley with gusts up to 60 mph, posing risks of property damage and difficult travel for high profile vehicles until 8 PM MST. Please stay informed and prepare for these conditions.


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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