Yakima River At Mabton flow report
As of July 14, 2026, Yakima River At Mabton is flowing at 1,790 cfs with a gage height of 11.29 ft, holding steady over the past 24 hours. Source: USGS gauge #12508990, refreshed throughout the day.
Historical Data
Yakima River At Mabton at a glance
How Yakima River At Mabton is running right now, where it sits on the map, and the key gauge stats.
Yakima River At Mabton is flowing at 1,790 cfs, with the water sitting 11.29 ft at the gage. Flow has held roughly steady over the past 24 hours.
This is USGS gauge #12508990 in Washington. Over the past 10 days the average has been 1,619 cfs, peaking at 1,810 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Washington flow report.
Streamflow Forecast
Over the next 5 days, Yakima River At Mabton is expected to recede from today's 1810 cfs, toward roughly 1555 cfs by 2026-07-18 (likely range 994-2433 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.
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.
Yakima River At Mabton
The river is also impacted by the Wapato Irrigation Project and the Roza Dam. The flow levels exhibit seasonal trends with the highest flows occurring during the spring and early summer due to snowmelt, and the lowest flows in the fall and winter. Interesting facts about the hydrology include the presence of steelhead and Chinook salmon in the river and the occurrence of flash floods during heavy rain events. The Yakima River plays an important role in providing water for irrigation and supporting aquatic life in the region.
Nearby streamflow levels
Cross-check Yakima River At Mabton's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Yakima River At Mabton | 1,790 cfs |
| Granger Drain At Granger | 44 cfs |
| Yakima River At Kiona | 874 cfs |
| Columbia River Below Priest Rapids Dam | 109,000 cfs |
| Yakima River Above Ahtanum Creek At Union Gap | 2,750 cfs |
| Ahtanum Creek At Union Gap | 11 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Yakima River At Mabton. 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 |
|---|---|
| Satus Pass | 0 in |
| 20d01 - Satus Pass | 0 in |
| Indian Rock | 0 in |
| Nohrsc Indian Rock | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Yakima River At Mabton.
Boat launches
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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 Yakima River At Mabton in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Yakima River At Mabton crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Yakima River At Mabton
Where does the streamflow data for Yakima River At Mabton come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 12508990. 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 Yakima River At Mabton 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 Yakima River At Mabton report
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