Juniata River At Mapleton Depot flow report
As of July 14, 2026, Juniata River At Mapleton Depot is flowing at 1,170 cfs with a gage height of 3.34 ft, receding 18% over the past 24 hours. Source: USGS gauge #01563500, refreshed throughout the day.
Historical Data
Juniata River At Mapleton Depot at a glance
How Juniata River At Mapleton Depot is running right now, where it sits on the map, and the key gauge stats.
Juniata River At Mapleton Depot is flowing at 1,170 cfs, with the water sitting 3.34 ft at the gage. Flow is down 18% since yesterday as the gauge recedes.
This is USGS gauge #01563500 in Pennsylvania. Over the past 10 days the average has been 1,765 cfs, peaking at 3,180 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, Juniata River At Mapleton Depot is expected to recede from today's 1170 cfs, toward roughly 970 cfs by 2026-07-19 (likely range 505-1863 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.
Juniata River At Mapleton Depot
The hydrology of the river is impacted by the Raystown Dam, which regulates flow and water levels. Seasonal trends include higher flows in the spring due to snowmelt and spring rains, and lower flows in the late summer and fall. Interesting facts include the Juniata River being named after the Native American tribe that once inhabited the area, and being featured in James Fenimore Cooper's novel, "The Last of the Mohicans." Additionally, the river is popular for recreational activities such as fishing, boating, and camping.
Nearby streamflow levels
Cross-check Juniata River At Mapleton Depot's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Juniata River At Mapleton Depot | 1,170 cfs |
| Rays Br Juniata R Bl Rays Dam Nr Huntingdon | 414 cfs |
| Juniata River At Huntingdon | 627 cfs |
| Aughwick Creek Near Shirleysburg | 46 cfs |
| Aughwick Creek Near Three Springs | 31 cfs |
| Frankstown Br Juniata River At Williamsburg | 185 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Juniata River At Mapleton Depot. 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 |
|---|---|
| Raystown Hq | 0 in |
| Huntingdon 1.3 N | 0 in |
| Williamsburg | 0 in |
| Tyrone 4.7 Ene | 0 in |
| Altoona 2 | 0 in |
| Port Matilda 2.2 Ese | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Juniata River At Mapleton Depot.
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 Juniata River At Mapleton Depot in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Juniata River At Mapleton Depot crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Juniata River At Mapleton Depot
Where does the streamflow data for Juniata River At Mapleton Depot come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 01563500. 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 Juniata River At Mapleton Depot 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 Juniata River At Mapleton Depot report
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