Schuylkill River At Norristown Flow Report
As of July 26, 2026, Schuylkill River At Norristown is flowing at 469 cfs with a gage height of 7.82 ft, holding steady over the past 24 hours. Source: USGS gauge #01473500, refreshed throughout the day.
Historical Data
Schuylkill River At Norristown at a glance
How Schuylkill River At Norristown is running right now, where it sits on the map, and the key gauge stats.
Schuylkill River At Norristown is flowing at 469 cfs, with the water sitting 7.82 ft at the gage. Flow has held roughly steady over the past 24 hours.
This is USGS gauge #01473500 in Pennsylvania. Over the past 10 days the average has been 595 cfs, peaking at 976 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Pennsylvania flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #01473500).
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, Schuylkill River At Norristown is expected to rise from today's 469 cfs, toward roughly 571 cfs by 2026-07-31 (likely range 222-1466 cfs) -- running well below the seasonal normal.
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.
Schuylkill River At Norristown
The river's flow is affected by several factors, including rainfall and dam releases from upstream reservoirs. The Schuylkill River has several tributaries, including the Perkiomen Creek and Wissahickon Creek. During the summer, the river's flow tends to be lower due to decreased rainfall, while in the winter, snowmelt can cause a significant increase in flow. Interestingly, the Schuylkill River was once considered one of the most polluted rivers in the United States, but has seen significant improvements in water quality in recent years.
Nearby streamflow levels
Cross-check Schuylkill River At Norristown's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Schuylkill River At Norristown | 469 cfs |
| Valley Creek At Pa Turnpike Branch Near Valley Forge | 9 cfs |
| Wissahickon Creek At Fort Washington | 16 cfs |
| Perkiomen Creek At Graterford | 85 cfs |
| Wissahickon Creek At Mouth | 36 cfs |
| Cobbs Creek At U.s. Hghwy No. 1 At Philadelphia | 2 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Schuylkill River At Norristown. 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 |
|---|---|
| Conshohocken | 0 in |
| Sellersville | 0 in |
| Glenmoore | 0 in |
| Coatesville 1e | 0 in |
| Morgantown 4.1 Nne | 0 in |
| Springtown 1 Nne | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Schuylkill River At Norristown.
Boat launches
See all →
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 Schuylkill River At Norristown in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Schuylkill River At Norristown crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Schuylkill River At Norristown
What is the Schuylkill River At Norristown flow rate right now?
As of July 26, 2026, Schuylkill River At Norristown is flowing at 469 cfs. The live value, gage height, and 24-hour trend are shown at the top of this page.
Is the Schuylkill River At Norristown running high or low right now?
Check the percent of median figure on this page: above 100% means Schuylkill River At Norristown 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 Schuylkill River At Norristown come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 01473500. 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 Schuylkill River At Norristown 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 Schuylkill River At Norristown report
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