South Fork Tolt River Near Index, Wa Realtime Data
SOUTH FORK TOLT RIVER NEAR INDEX, WA
Realtime Data • Report • Conditions
6
Discharge (cfs)
0.7
Gauge Height (ft)
Streamflow discharge was last observed at 6 cfs, and a gauge height of 0.72 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 10 .
Weather today, Tomorrow,
The river is fed by rainfall and snowmelt, with potential tributaries including the North Fork Tolt River and small creeks in the area. The river experiences higher flows during the winter months due to increased precipitation and snowmelt, while summer flows may be lower. The hydrology of the South Fork Tolt River is unique due to the presence of dams, including the Tolt Hydroelectric Project, which can affect the flow and temperature of the river. Interesting facts include the river being designated a Wild and Scenic River, and its importance as a habitat for endangered fish species such as Chinook salmon and steelhead.
July 13, 2026
| Elevation | 1,962.0 ft |
| Last Updated | |
| Gage height, ft | 0.72 ft |
| Streamflow, ft³/s | 6.21 ft3/s |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU) | 0.0 FNU |
| Temperature, air, °C | 9.2 deg C |
| Temperature, water, °C | 11.9 deg C |
| Percent of Normal | 41% |
| Year Over Year Average | 15 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 1,340 cfs |
| Geolocation | 47.71, -121.60 |
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