IDAHO FLOW REPORT

Last Updated: February 20, 2026

In Idaho, river enthusiasts and water managers are observing a variety of streamflow conditions, with some rivers experiencing below-normal flows and others at or near normal levels. Specifically, rivers such as the Snake River near Minidoka and Twin Falls are showing significantly reduced streamflows, at 73.53% and 76.97% below their normal levels respectively, potentially impacting water activities and agriculture in the region. Conversely, the North Fork Payette River near Banks is flowing at a robust 49.67% above normal, which may interest whitewater enthusiasts looking for challenging conditions. In the Kootenai River Basin, the streamflow near Bonners Ferry is near normal, sitting at 59.73% of average, but water levels should be carefully monitored for any potential for flooding as the season progresses.

Major rivers such as the Boise and Payette show mixed conditions; the Boise River at Glenwood Bridge near Boise is below normal (-13.2%), while the Payette River near Payette is slightly above normal, with a 14.41% increase. For cities like Idaho Falls, Pocatello, and Twin Falls, the reduced streamflow in the Snake River could mean a tighter water supply and potential implications for recreational activities. For whitewater trails, the North Fork Payette River at Banks, with a gage height of 5.12 feet, could offer some of the more exciting conditions, while the reduced flow on the Snake River near Heise may deter some boating activities. Water users and recreationalists should stay updated on current conditions, as water levels can change rapidly with weather events and seasonal trends.

       




       

Winter Storm Warnings

February 20 2026

Residents in Idaho, particularly those in the Bear River Range and surrounding mountains, are advised to exercise extreme caution due to a significant avalanche advisory in effect through early Monday morning. The Forest Service Utah Avalanche Center warns of dangerous avalanche conditions following this week's heavy snowfall and strong winds which have overloaded preexisting weak layers in the snowpack. Outdoor enthusiasts should avoid backcountry travel in these areas over the weekend as the risk of avalanche accidents is high, evidenced by two recent fatalities and multiple incidents. Stay vigilant and prioritize safety by adhering to all advisories.


Rafting & Kayaking

River Run Status Streamflow (CFS) Air Temp (F)
32nd Street to Smelter
Class III to IV-
34.11
TOO HIGH 1630 59
RUNNABLE 144 56
RUNNABLE 3670 48
RUNNABLE 3670 48
RUNNABLE 3670 48
RUNNABLE 3670 48
RUNNABLE 3670 48
Box Canyon
Class II
RUNNABLE 267 50
RUNNABLE 1270 53
Cabarton
Class II to III
TOO LOW 44.6 35
RUNNABLE 1070 55
Coffee Pot
Class III
RUNNABLE 390 48
TOO HIGH 1070 55
RUNNABLE 1560 54
RUNNABLE 1560 54
RUNNABLE 1560 54
RUNNABLE 1070 55
RUNNABLE 2490 58
35.94
TOO LOW 527 58
TOO HIGH 1070 55
RUNNABLE 9860 51
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
TOO LOW 57
Pahsimeroi to Royal Gorge
Class II- to III-
TOO HIGH 1070 55
RUNNABLE 3090 45
42.37
35.55
RUNNABLE 9860 51
TOO HIGH 1070 55
418 49
Split Creek to Lowell
Class II+ to III+
RUNNABLE 2490 58
TOO HIGH 1070 55
RUNNABLE 1070 55
RUNNABLE 2490 58
42.12