IDAHO FLOW REPORT

Last Updated: January 5, 2026

Idaho's river systems show varied trends in streamflow conditions, which are essential for both ecological health and recreational activities. The Kootenai River, a major water body for the northern part of the state, has exhibited a significant streamflow at Leonia, with a current flow of 25,700 cfs, well above the normal at 172.36%, which could impact communities like Bonners Ferry and might interest whitewater enthusiasts for its high flow conditions. Conversely, the Snake River near Irwin shows a decreased streamflow at 887 cfs, 23.2% below normal, indicating potential flow drought conditions that could affect agriculture and water supply in regions like Idaho Falls. The Boise River, vital for the capital region, presents near-average flows, with the stream at Twin Springs flowing at 1,060 cfs, marking 98.72% of its normal flow, suggesting stable conditions for the time being.

Notable extremes in streamflow changes over the last 24 hours include the South Fork Coeur d'Alene River near Pinehurst with a dramatic increase of 79.63%, reaching a flow of 767 cfs, which is 232.99% above normal, likely affecting nearby communities like Kellogg. This surge could pose risks of flooding and create challenging conditions for river users. Furthermore, the Weiser River near Cambridge has seen an extraordinary 302.89% change in the last 24 hours, with a flow of 2,510 cfs, drastically surpassing the normal at an astonishing 801.97%, which might impact towns like Weiser and is a concern for flood monitoring. These fluctuations highlight the dynamic nature of Idaho's rivers, with certain areas experiencing potential flood risks while others might be facing low water levels, reminding us of the importance of monitoring streamflow for both community safety and the enjoyment of river-related activities.

       



Idaho's flow conditions are influenced by its unique hydrology and climate characteristics. The state has numerous major surface flows, including the Snake River, Salmon River, and Clearwater River, all of which are important for irrigation, hydroelectric power, and recreation. Idaho also has several large reservoirs and dams, such as the Boise River Reservoir and Lucky Peak Dam, which play a crucial role in regulating water flow and supply. The state's watersheds and snowpack levels are also significant indicators of hydrologic conditions, with winter snowpack providing a critical source of water for the state's rivers and streams during the summer months. Overall, Idaho's flow conditions are shaped by a complex interplay of natural and human factors, making it an important area of study for hydrologists and water resource managers.


       

Winter Storm Warnings

January 5 2026

Residents of Idaho, please take caution as multiple winter weather advisories and storm warnings are in effect across the state. Areas such as the Big Lost Highlands/Copper Basin, Sawtooth/Stanley Basin, Sun Valley Region, and Big Hole Mountains are advised of snow accumulations ranging from 2 to 5 inches until 3 PM MST today. The Bear River Range is under a winter storm warning with expectations of heavy snowfall up to two feet above 7000 feet, potentially making travel very difficult. Furthermore, the West Central Mountains anticipate 5 to 9 inches of snow with strong winds, whereas regions including Pinehurst, Osburn, Wallace, and Bonners Ferry brace for 8 to 15 inches of snow above 3000 feet. Heavy snow is also possible around Pierce, with major winter weather impacts anticipated. Commuters should expect hazardous conditions and plan for disruptions, particularly during morning and evening commutes. Avoid travel if possible and stay updated on the latest weather conditions.


Rafting & Kayaking

River Run Status Streamflow (CFS) Air Temp (F)
32nd Street to Smelter
Class III to IV-
34.11
Black Canyon - Highway 34 to Grace Powerhouse
Class IV to V
TOO HIGH 1630 59
Blackfoot Wolverine Canyon Run
Class IV+ to V
RUNNABLE 144 56
Boundary Creek to Cache Bar
Class III to IV+
RUNNABLE 3670 48
Boundary Creek to Cache Bar
Class III to IV+
RUNNABLE 3670 48
Boundary Creek to Cache Bar
Class III to IV+
RUNNABLE 3670 48
Boundary Creek to Cache Bar
Class III to IV+
RUNNABLE 3670 48
Boundary Creek to Cache Bar
Class III to IV+
RUNNABLE 3670 48
Box Canyon
Class II
RUNNABLE 267 50
Bruneau (Indian Hot Springs to Bruneau)
Class II+ to IV
RUNNABLE 1270 53
Cabarton
Class II to III
TOO LOW 44.6 35
Challis Bridge to Deer Gulch
Class II
RUNNABLE 1070 55
Coffee Pot
Class III
RUNNABLE 390 48
Colston to the Town of Salmon
Class II to II+
TOO HIGH 1070 55
Corn Creek to Vinegar Creek/Carey Creek (Main Salmon)
Class III to IV
RUNNABLE 1560 54
Corn Creek to Vinegar Creek/Carey Creek (Main Salmon)
Class III to IV
RUNNABLE 1560 54
Corn Creek to Vinegar Creek/Carey Creek (Main Salmon)
Class III to IV
RUNNABLE 1560 54
East Fork to Challis Bridge
Class II
RUNNABLE 1070 55
Fish Creek to Split Creek
Class III to IV
RUNNABLE 2490 58
Float Creek to Middle Fork of the Salmon
Class IV
35.94
Hammer Creek to Heller Bar (Lower Salmon)
Class III- to IV
TOO LOW 527 58
Headwaters (Gold Creek to Stanley)
Class III- to III+
TOO HIGH 1070 55
Hells Canyon (Hells Canyon Dam to Pittsburg Landing)
Class III to IV
RUNNABLE 9860 51
Kelly's Whitewater Park
Class III
216 45
Murphy to Bruneau
Class III- to V
TOO LOW 20 57
Murphy to Bruneau
Class III- to V
TOO LOW 20 57
Murphy to Bruneau
Class III- to V
TOO LOW 20 57
Murtaugh Canyon
Class IV
TOO LOW 57
Pahsimeroi to Royal Gorge
Class II- to III-
TOO HIGH 1070 55
Palisade Dam to Lorenzo (South Fork)
Class II
RUNNABLE 3090 45
Paradise to Selway Falls
Class IV- to V
42.37
Piece of Cake Run (Sunbeam to Torreys)
Class III to IV
35.55
Pittsburg Landing to Heller Bar
Class II to III
RUNNABLE 9860 51
Salmon to North Fork
Class II
TOO HIGH 1070 55
Secesh to Main (The Canyon)
Class III to V
418 49
Split Creek to Lowell
Class II+ to III+
RUNNABLE 2490 58
Sunbeam Run (Stanley to Sunbeam Dam)
Class III- to III+
TOO HIGH 1070 55
Torreys to East Fork
Class II
RUNNABLE 1070 55
White Pine (Indian Grave Creek) to Wilderness Gateway Bridge
Class IV- to IV+
RUNNABLE 2490 58
White Sands to White Pine (Indian Grave Creek)
Class II to III
42.12
       
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