Idaho rivers too low right now
4 of 25 Idaho gauges are Too low right now: flow is far below that gauge's own normal for the date.
Updated Oct 28, 9:55 AM PDT · USGS data, provisional
| River | Status | Flow now | Typical for date (median) | Now as % of median | Vs. normal | 24 h |
|---|---|---|---|---|---|---|
| Henrys Fork near Ashton, ID | Too low | 622 cfs | 1,120 cfs | 56% | 1st pct. | ● steady |
| Snake River at Neeley, ID | Too low | 320 cfs | 2,325 cfs | 14% | 8th pct. | ● steady |
| Teton River near St. Anthony, ID | Too low | 389 cfs | 503 cfs | 77% | 9th pct. | ● steady |
| Henrys Fork near Island Park, ID | Too low | 86.0 cfs | 372 cfs | 23% | 10th pct. | ● steady |
Lowest of the rest
The 5 Idaho gauges not labelled Too low with the lowest flow for the date (seasonal percentile).
| River | Status | Flow now | Typical for date (median) | Now as % of median | Vs. normal | 24 h |
|---|---|---|---|---|---|---|
| Pahsimeroi River at Ellis, ID | Fishable/Floatable | 208 cfs | 276 cfs | 75% | 5th pct. | ● steady |
| Lemhi River near Lemhi, ID | Fishable/Floatable | 186 cfs | 260 cfs | 72% | 12th pct. | ● steady |
| Snake River near Heise, ID | Fishable/Floatable | 2,010 cfs | 3,000 cfs | 67% | 14th pct. | ● steady |
| Silver Creek at Sportsman Access, near Picabo, ID | Fishable/Floatable | 94.9 cfs | 133 cfs | 71% | 15th pct. | ● steady |
| Henrys Fork at St. Anthony, ID | Fishable/Floatable | 1,030 cfs | 1,340 cfs | 77% | 19th pct. | ● steady |
What “Too low” means here
Flow is far below normal for the date. Expect shallow riffles and slower water; some stretches may be hard to float and fish can be stressed by low flows. Check local reports for the specific stretch. It is a comparison with each gauge's own history for this time of year (seasonal percentile), not a minimum flow for any boat or fishing method. Some rivers are regulated by dams or diversions, so low flow can reflect management rather than weather.
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