WYOMING FLOW REPORT

Last Updated: December 28, 2025

Wyoming's rivers and streams are showing a variety of flow trends, with some notable deviations from their normal streamflow, essential information for water enthusiasts and locals monitoring river conditions. The Firehole River near West Yellowstone Mt, WY, exhibits a decrease in streamflow, now flowing at 235 cubic feet per second (cfs), 11.97% below normal with a current gage height of 3.02 feet. In contrast, the North Fork Shoshone River at Wapiti shows a significant increase, with a streamflow of 527 cfs and a remarkable 133.19% above normal, signaling potential areas of high water and swift currents that could impact whitewater activities. The Wind River, important for its recreational and ecological roles, shows varied conditions across different locations, with flows near Riverton at 463 cfs, slightly above normal, but downstream near Kinnear, it's experiencing a slight decrease at 410 cfs.

The Bull Lake Creek, running above Bull Lake, has streamflow levels notably higher than usual at 157.58% of the normal flow, which could indicate areas of flooding risk, particularly for communities nearby such as Lander. Meanwhile, the Snake River, a popular destination for whitewater enthusiasts, shows variable conditions with the stretch at Moose flowing at 869 cfs, close to the normal rate, while the section above Jackson Lake at Flagg Ranch is 52.86% above normal at 522 cfs, allowing for potentially excellent conditions for advanced paddlers. However, caution is always advised due to the dynamic nature of river flows. These conditions may impact the local ecosystems, water supply management, and recreational activities, highlighting the importance of closely monitoring streamflow changes across the state's diverse river systems.

       



Wyoming has a semi-arid climate with an average annual precipitation of 14 inches. The state contains major surface flows such as the Green River, North Platte River, and the Snake River. The Wind River Range contains the headwaters of the Green and Snake Rivers. The state has many reservoirs and dams that are used for irrigation, flood control, and hydroelectric power generation. Snowpack in the mountains is a critical source of water for Wyoming's rivers, and snowmelt runoff typically peaks in May and June. The state is also affected by drought conditions, which can lead to reduced water availability and increased wildfire risk. Overall, Wyoming's hydrology is influenced by its specific geography, climate, and water management practices.


       

Winter Storm Warnings

December 28 2025

Rafting & Kayaking

River Run Status Streamflow (CFS) Air Temp (F)
1st Gorge Lime
Class IV+ to V
39.99
Alpine Canyon (West Table to Sheep Gulch)
Class III- to III+
RUNNABLE 817 48
Astoria to West Table
Class I to II
RUNNABLE 817 48
Canyon
Class I
26 70
Cave Falls Run
Class III to III+
RUNNABLE 265 51
Granite Creek
Class II to III
TOO HIGH 66.6 46
Hoback Canyon
Class II to III+
38.43
Lower Greys (Squaw Creek to Bridge Campground)
Class III+ to V-
RUNNABLE 350 47
Narrows
Class III- to III+
RUNNABLE 890 44
Northgate Canyon
Class III- to III+
RUNNABLE 142 61
Upper Boxelder Canyon
Class V
RUNNABLE 215 74
Upper Greys (Lynx Creek to Little Greys)
Class II to IV+
RUNNABLE 350 47
Upper Greys (Murphy Creek Bridge to Lynx Creek Campground)
Class II to II+
RUNNABLE 350 47
Upper Greys (Murphy Creek Bridge to Lynx Creek Campground)
Class II to II+
RUNNABLE 350 47
Wedding of the waters
Class I
TOO HIGH 4350 89
       
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