Middle Fork Willamette River At Jasper Flow Report
As of July 26, 2026, Middle Fork Willamette River At Jasper is flowing at 2,200 cfs with a gage height of 3.04 ft. Source: USGS gauge #14152000, refreshed throughout the day.
Historical Data
Middle Fork Willamette River At Jasper at a glance
How Middle Fork Willamette River At Jasper is running right now, where it sits on the map, and the key gauge stats.
Middle Fork Willamette River At Jasper is flowing at 2,200 cfs, with the water sitting 3.04 ft at the gage.
This is USGS gauge #14152000 in Oregon. Over the past 10 days the average has been 2,272 cfs, peaking at 2,380 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Oregon flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #14152000).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
Streamflow Forecast
Over the next 5 days, Middle Fork Willamette River At Jasper is expected to hold near today's 2200 cfs, toward roughly 2157 cfs by 2026-07-31 (likely range 1753-2653 cfs) -- drier than normal for the date.
Powered by PULSE — Snoflo’s forecast engine, trained on this gauge’s full record of storms, snowmelt, and dry spells.
| Date | Expected (p50) | Likely range (p25–p75) | vs normal | Projected stage |
|---|
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Middle Fork Willamette River At Jasper
The river is influenced by several tributaries, including the McKenzie River and the Coast Fork Willamette River. There are several dams along the river, including Lookout Point Dam and Dexter Dam, which can impact the flow and water levels. The hydrology of the river is affected by seasonal trends, with higher flows in the spring and lower flows in the summer and fall. Interestingly, the river is known for its rich history of gold mining in the late 19th century.
Nearby streamflow levels
Cross-check Middle Fork Willamette River At Jasper's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Middle Fork Willamette River At Jasper | 2,200 cfs |
| Coast Fork Willamette River Near Goshen | 152 cfs |
| Cedar Creek At Springfield | 1 cfs |
| Middle Fork Willamette River Near Dexter | 1,750 cfs |
| Camp Creek At Camp Creek Rd Bridge | 3 cfs |
| Mckenzie River Above Hayden Branch | 1,710 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Middle Fork Willamette River At Jasper. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Cottage Grove 2e | 0 in |
| Eugene-Mahlon Sweet Field | 0 in |
| Holland Meadows | 0 in |
| Nohrsc Holland Meadows | 0 in |
| Foster Dam | 0 in |
| Corvallis Municipal Airport | 0 in |
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track Middle Fork Willamette River At Jasper in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Middle Fork Willamette River At Jasper crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Middle Fork Willamette River At Jasper
What is the Middle Fork Willamette River At Jasper flow rate right now?
As of July 26, 2026, Middle Fork Willamette River At Jasper is flowing at 2,200 cfs. The live value, gage height, and 24-hour trend are shown at the top of this page.
Is the Middle Fork Willamette River At Jasper running high or low right now?
Check the percent of median figure on this page: above 100% means Middle Fork Willamette River At Jasper is running higher than normal for the date, below 100% means lower. The 24-hour trend shows whether it's rising or falling.
Where does the streamflow data for Middle Fork Willamette River At Jasper come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 14152000. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when Middle Fork Willamette River At Jasper rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free Middle Fork Willamette River At Jasper report
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