Bryon Road, Prosser boat launch
Bryon Road, Prosser
According to the Washington State Parks and Recreation Commission, the Yakima River is classified as a Type III waterway, which means that it is suitable for motorboats with a maximum horsepower of 10. Additionally, all watercraft must be properly registered and have the required safety equipment on board.
It is important to note that conditions at the Bryon Road boat ramp may vary depending on the time of year and weather conditions. It is always best to check with local authorities or the Washington State Parks and Recreation Commission for the latest information and regulations before launching a boat from this ramp.
Plan your launch down to the hour
Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no.
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 temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Area streamflow levels
USGS streamgauges around Bryon Road, Prosser -- the same readings that determine whether your launch is safe and your boat is the right craft.
| Streamgauge | Discharge | View |
|---|---|---|
| Yakima River At Mabton | 4,700 cfs | → |
| Yakima River At Kiona | 1,250 cfs | → |
| Granger Drain At Granger | 45 cfs | → |
| Columbia River Below Priest Rapids Dam | 145,000 cfs | → |
| Umatilla River Near Umatilla | 210 cfs | → |
Plan a longer trip
The closest paddle runs, fishing spots, and other boat launches so you can extend a day on the water.
Boating safety & etiquette
- Check the conditions before you launch
- Use the streamflow numbers, weather, and wind forecast on this page. High-cfs whitewater requires whitewater-specific craft and skill.
- Wear your life jacket
- Statistically the single biggest survival factor in a boating incident. State law often requires one per passenger.
- File a float plan
- Tell someone on shore your put-in, take-out, and expected return time. Especially for multi-day or remote trips.
- Yield at the ramp
- Prep gear in the parking lot, not on the ramp. Launch and clear quickly so others can use the lane.
- Clean, drain, dry
- Inspect, clean, drain and dry your boat between waters to prevent the spread of aquatic invasive species.
Set push alerts in the Snoflo app
Save Bryon Road, Prosser as a favorite, set a discharge threshold or a wind/precipitation alert, and the iOS app will push the moment conditions cross.
About Bryon Road, Prosser
Can I launch a motorboat here?
Most Snoflo-tracked launches support motorboats; check the operator for any horsepower restrictions, paddle-only zones, or seasonal closures.
How fresh is the streamflow data?
USGS streamgauges report continuously (every 15 minutes); the table on this page pulls the latest reading at page load.
Is there a fee?
Many federal and state boat launches charge a day-use fee. Check the operator's site before driving out.
What boat is right for these conditions?
Use the nearby streamflow numbers and river-run panel on this page to gauge current conditions. Wider, slower water is friendly for casual paddling and powerboats; high-cfs whitewater requires whitewater-specific craft and skill.
Can I get alerts when conditions change?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this launch, set a threshold (discharge, wind), and you'll get a push the moment it crosses.
Other launches near here
Snoflo-tracked boat launches within driving distance of Bryon Road, Prosser.