Streamflow discharge was last observed at 127 cfs, and a gauge height of 32.35 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 140 .
Weather today, Tomorrow,
The river is mainly fed by snowmelt and precipitation, with the potential for increased flow during heavy rainfall. The river is not affected by any significant tributaries or dams in the area. Seasonal trends show increased flow during the spring and summer months, while winter sees a decrease in flow. One interesting fact about the hydrology of the NF Toutle River is that it was greatly impacted by the eruption of Mount St. Helens in 1980, with the river channel changing significantly as a result.
| Elevation | 772.0 ft |
| Last Updated | |
| Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 ±2.5°, formazin nephelometric units (FNU) | 6.0 FNU |
| Gage height, ft | 32.35 ft |
| Streamflow, ft³/s | 127.0 ft3/s |
| Percent of Normal | 35% |
| Year Over Year Average | 368 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 5,850 cfs |
| Geolocation | 46.37, -122.58 |