Granite Creek Below Watson Lake Near Prescott flow report
As of July 13, 2026, Granite Creek Below Watson Lake Near Prescott is flowing at 0 cfs with a gage height of 1.49 ft. Source: USGS gauge #09503300, refreshed throughout the day.
Historical Data
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.
Granite Creek Below Watson Lake Near Prescott
The flow in this stream is primarily generated by winter snowmelt and summer monsoon rains. The gauge is located downstream of Granite Creek Dam, which can impact the flow, particularly during periods of high water release. The stream has a semi-arid climate, with low flow during the summer months and occasional flash floods during monsoon season. The watershed is home to a diverse range of plant and animal species, including the endangered southwestern willow flycatcher. The stream provides important habitat for recreation and fishing opportunities.
Nearby streamflow levels
Cross-check Granite Creek Below Watson Lake Near Prescott's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Granite Creek Blw Watson Lake Nr Prescott | 0 cfs |
| Granite Creek Near Prescott | 10 cfs |
| Granite Creek At Prescott | 0 cfs |
| Agua Fria River Near Humboldt | 1 cfs |
| Del Rio Springs Near Chino Valley | 0 cfs |
| Verde River Near Paulden | 34 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Granite Creek Below Watson Lake Near Prescott. 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 |
|---|---|
| Prescott 4.6 N | 0 in |
| Prescott 3.1 Nne | 0 in |
| Nohrsc Prescott Valley 2.4 Nw | 0 in |
| Nohrsc Prescott 6.9 Nnw | 0 in |
| Nohrsc Prescott Valley 1.0 W | 1 in |
| Nohrsc Prescott Valley 4.0 Nnw | 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 Granite Creek Below Watson Lake Near Prescott in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Granite Creek Below Watson Lake Near Prescott crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Granite Creek Below Watson Lake Near Prescott
Where does the streamflow data for Granite Creek Below Watson Lake Near Prescott come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 09503300. 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 Granite Creek Below Watson Lake Near Prescott 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 Granite Creek Below Watson Lake Near Prescott report
Create your free account to track this river — and everything else you love on the water.
- Flow alerts — get pinged the moment this river hits your range
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- Full history & forecasts — plus the free iPhone app