About this river
Tsoo-Yess River is a 3.8 mile river near Olympic Peninsula Guide Service in Washington. Streamflow is measured at the USGS gauge Tsoo-yess River below Miller Creek near Ozette, WA (site 12043163). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1976 to 2026
Tsoo-Yess River typically runs highest in December, at a median 268 cfs, and lowest in August, at 12 cfs. The highest flow on record for any single day is 5,340 cfs, in 2025.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 204 | 120 to 451 | |
| February | 214 | 124 to 442 | |
| March | 191 | 115 to 408 | |
| April | 132 | 87 to 237 | |
| May | 64 | 35 to 116 | |
| June | 36 | 22 to 61 | |
| July | 23 | 14 to 40 | |
| August | 12 | 9.5 to 19 | |
| September | 23 | 12 to 58 | |
| October | 76 | 39 to 186 | |
| November | 254 | 131 to 463 | |
| December | 268 | 152 to 467 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 26 years of record. Statistics published by the US Geological Survey for Tsoo-yess River below Miller Creek near Ozette, WA (site 12043163). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Tsoo-Yess River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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