USGS Streamgage 12059500
North Fork Skokomish River near Potlatch, WA
North Fork Skokomish River near Potlatch, WA is USGS streamgage 12059500 in Washington, monitoring river discharge in hydrologic subbasin 17110017. It drains a watershed of about 117 square miles. Discharge records at this site go back to 1944. Typical flow runs near 22.3 cfs in July and 94.8 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Washington
- Drainage area
- 117 sq mi
- Gauge elevation
- 76 ft
- Subbasin (HUC-8)
- 17110017
- Coordinates
- 47.32978, -123.24319
- USGS site number
- 12059500
- Records begin
- 1944-04-01 (82 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for North Fork Skokomish River near Potlatch, WA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 157 | 162 | 167 | ||
| 153 | 162 | 169 | ||
| 147 | 163 | 174 | ||
| 138 | 162 | 175 | ||
| 136 | 162 | 179 | ||
| 127 | 160 | 181 | ||
| 120 | 159 | 183 | ||
| 116 | 159 | 186 | ||
| 118 | 159 | 189 | ||
| 115 | 158 | 191 | ||
| 114 | 158 | 193 | ||
| 117 | 159 | 196 | ||
| 115 | 159 | 197 | ||
| 112 | 159 | 198 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 82 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 60 | 198.1 | 665.6 | |
| February | 69.6 | 171.8 | 494.6 | |
| March | 62 | 142.4 | 376.4 | |
| April | 43.1 | 94.8 | 290.6 | |
| May | 27.3 | 56.1 | 264.4 | |
| June | 17.1 | 34.2 | 245.5 | |
| July | 10.6 | 22.3 | 160.7 | |
| August | 7.4 | 16.2 | 139.9 | |
| September | 6.9 | 23.6 | 181.7 | |
| October | 9.7 | 51.4 | 269.4 | |
| November | 34.6 | 143.9 | 566.7 | |
| December | 64.4 | 215.4 | 679.2 |
All values in cubic feet per second (cfs).
Common questions
- When does North Fork Skokomish River near Potlatch, WA normally run highest?
- December, on the long-term record. The median daily flow that month is about 215.4 cfs, against 16.2 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for North Fork Skokomish River near Potlatch, WA?
- It depends on the month. In January, half of days historically fall near 198.1 cfs, with the middle 80% of days between 60 and 665.6 cfs. The month-by-month table on this page gives the full range.
- How long has North Fork Skokomish River near Potlatch, WA been measured?
- Discharge records at USGS site 12059500 begin in 1944, about 82 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for North Fork Skokomish River near Potlatch, WA?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is North Fork Skokomish River near Potlatch, WA?
- The gauge sits at 47.32978, -123.24319, in Washington, in hydrologic subbasin 17110017, at an elevation of about 76 feet, draining roughly 117 square miles.
- Can I use North Fork Skokomish River near Potlatch, WA data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.