Lehigh River At Glendon flow report
As of July 14, 2026, Lehigh River At Glendon is flowing at 1,100 cfs with a gage height of 7.47 ft, receding 33% over the past 24 hours. Source: USGS gauge #01454700, refreshed throughout the day.
Historical Data
Lehigh River At Glendon at a glance
How Lehigh River At Glendon is running right now, where it sits on the map, and the key gauge stats.
Lehigh River At Glendon is flowing at 1,100 cfs, with the water sitting 7.47 ft at the gage. Flow is down 33% since yesterday as the gauge recedes.
This is USGS gauge #01454700 in Pennsylvania. Over the past 10 days the average has been 1,861 cfs, peaking at 3,150 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Pennsylvania flow report.
Streamflow Forecast
Over the next 5 days, Lehigh River At Glendon is expected to hold near today's 1650 cfs, toward roughly 1495 cfs by 2026-07-18 (likely range 799-2797 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.
Lehigh River At Glendon
The river is influenced by several tributaries, including the Monocacy Creek and Hokendauqua Creek, as well as several dams along its length. Seasonal trends in flow rate are influenced by precipitation and snowmelt, with peak flows occurring in spring and summer. Interestingly, the Lehigh River at Glendon, PA was once used for transportation of coal and iron along the Lehigh Canal, and remnants of the canal can still be seen along the river's banks.
Nearby streamflow levels
Cross-check Lehigh River At Glendon's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Lehigh River At Glendon | 1,100 cfs |
| Bushkill Creek Ab Rt 33 Bridge At Tatamy | 83 cfs |
| Monocacy Creek At Bethlehem | 24 cfs |
| Lehigh River At Bethlehem | 1,060 cfs |
| Musconetcong River Near Bloomsbury Nj | 84 cfs |
| Jordan Creek At Allentown | 10 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Lehigh River At Glendon. 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 |
|---|---|
| Springtown 1 Nne | 0 in |
| Belvidere Bridge | 0 in |
| Saylorsburg 2.7 Wnw | 0 in |
| Flemington 5 Nnw | 0 in |
| Clinton Twp 3.9 N | 0 in |
| Califon 0.6 Nw | 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 Lehigh River At Glendon in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Lehigh River At Glendon crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Lehigh River At Glendon
Where does the streamflow data for Lehigh River At Glendon come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 01454700. 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 Lehigh River At Glendon 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 Lehigh River At Glendon report
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