USGS Streamgage 14301340
Nehalem River at Nehalem, OR
Nehalem River at Nehalem, OR is USGS streamgage 14301340 in Oregon, monitoring river discharge in hydrologic subbasin 17100202. It sits on the Nehalem River, alongside 3 other gauges Rivermatics tracks on the same river. It drains a watershed of about 838 square miles. Discharge records at this site go back to 2024. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Oregon
- Drainage area
- 838 sq mi
- Subbasin (HUC-8)
- 17100202
- Coordinates
- 45.71783, -123.88975
- USGS site number
- 14301340
- Records begin
- 2024-02-16 (2 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Nehalem River at Nehalem, OR. 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 |
|---|---|---|---|---|
| 90.8 | 201 | 334 | ||
| 55.9 | 176 | 342 | ||
| 41.3 | 172 | 407 | ||
| 40.7 | 162 | 397 | ||
| 43 | 164 | 407 | ||
| 43.8 | 164 | 416 | ||
| 43.9 | 163 | 429 | ||
| 44.2 | 165 | 449 | ||
| 45.4 | 166 | 449 | ||
| 45.9 | 168 | 456 | ||
| 44.5 | 166 | 462 | ||
| 42.3 | 164 | 465 | ||
| 38.1 | 164 | 496 | ||
| 35.8 | 164 | 508 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Common questions
- How long has Nehalem River at Nehalem, OR been measured?
- Discharge records at USGS site 14301340 begin in 2024, about 2 years, covering roughly 901 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Nehalem River at Nehalem, OR?
- 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 Nehalem River at Nehalem, OR?
- The gauge sits at 45.71783, -123.88975, in Oregon, in hydrologic subbasin 17100202, draining roughly 838 square miles.
- Can I use Nehalem River at Nehalem, OR 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.
Upstream and downstream on the Nehalem River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Nehalem River in full.
- Nehalem River near Vernonia, OR 70 sq mi
- Nehalem River at Jewell, OR 412 sq mi
- Nehalem River near Foss, OR 667 sq mi
- Nehalem River at Nehalem, OR this page