Mahoning River Below West Ave At Youngstown Flow Report

Ohio, USA USGS #03098600 ↗

As of August 2, 2026, Mahoning River Below West Ave At Youngstown is flowing at 403 cfs with a gage height of 3.46 ft, holding steady over the past 24 hours. Source: USGS gauge #03098600, refreshed throughout the day.

⚠ Flood Watch · Flood Watch issued August 2 at 1:54AM EDT until August 3 at 12:00AM EDT by NWS Cleveland OH
Stale data This gauge hasn’t reported in days (last reading unknown). The readings below may not reflect current conditions.
Today high
--
Tonight low
--
Streamflow
--
Gage height
--
Loading current conditions…
Next 24 hours
Loading next 24 hours…
Right now · latest observation
Mahoning River Below West Ave At Youngstown
USGS gauge #03098600
403 cfs streamflow
Latest reading from this gauge.
Gage height
3.46ft
Water temp
--
% of median
Since yesterday
↓ -2%
Loading streamflow history…
Conditions summary

Mahoning River Below West Ave At Youngstown at a glance

How Mahoning River Below West Ave At Youngstown is running right now, where it sits on the map, and the key gauge stats.

Mahoning River Below West Ave At Youngstown is flowing at 403 cfs, with the water sitting 3.46 ft at the gage. Flow has held roughly steady over the past 24 hours.

This is USGS gauge #03098600 in Ohio. Over the past 10 days the average has been 448 cfs, peaking at 509 cfs.

For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Ohio flow report.

Mahoning River Below West Ave At Youngstown on the map Open map →
Site IDUSGS 03098600
Last updated2026-08-02
Gage height, ft3.46 ft
Streamflow, ft³/s403.0 ft3/s
Specific conductance, water, unfiltered, microsiemens per centimeter at 25°C473.0 uS/cm @25C
Dissolved oxygen, water, unfiltered, mg/L5.9 mg/l
pH, water, unfiltered, field, standard units7.7 std units
Temperature, water, degC21.4 deg C
Max recorded14,400 cfs
Engineering & permitting

Engineering Data

Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #03098600).

P10 exceedanceexceeded 10% of days
P25 exceedanceexceeded 25% of days
P50 (median)exceeded half of days
P75 exceedanceexceeded 75% of days
P90 exceedanceexceeded 90% of days
Period of recorddaily observations

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.

Conditions report:

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 outlook

Streamflow Forecast

Over the next 5 days, Mahoning River Below West Ave At Youngstown Oh is expected to hold near today's 403 cfs, toward roughly 394 cfs by 2026-08-07 (likely range 249-623 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.

Loading flow outlook…
Daily forecast table
DateExpected (p50)Likely range (p25–p75)vs normalProjected stage
Work-window check: flow below cfs
Historical context

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.

Detailed forecast

Weather Forecast

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day forecast

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
About this location

Mahoning River Below West Ave At Youngstown

There are no major tributaries or dams in the immediate vicinity. Seasonal trends indicate higher flows during heavy rainfall events, with lower flows during drier periods. The hydrology of the Mahoning River has been impacted by decades of industrial pollution, but recent efforts have led to improvements in water quality and fish populations. Interesting facts include the river's historical importance as a transportation route for coal and steel, and its designation as an Ohio Scenic River in 2018.

Regional streamflow

Nearby streamflow levels

Cross-check Mahoning River Below West Ave At Youngstown's discharge against nearby gauges to spot whether the change here is local or regional.

Regional snowpack

Nearby snowpack data

Snowpack at SNOTEL stations near Mahoning River Below West Ave At Youngstown. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.

Nearby recreation

Plan a trip

Reservoirs, boat launches, river runs, and fishing spots within driving distance of Mahoning River Below West Ave At Youngstown.

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 Mahoning River Below West Ave At Youngstown in the Snoflo app

Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Mahoning River Below West Ave At Youngstown crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.

FAQ

About Mahoning River Below West Ave At Youngstown

What is the Mahoning River Below West Ave At Youngstown flow rate right now?

As of August 2, 2026, Mahoning River Below West Ave At Youngstown is flowing at 403 cfs. The live value, gage height, and 24-hour trend are shown at the top of this page.

Is the Mahoning River Below West Ave At Youngstown running high or low right now?

Check the percent of median figure on this page: above 100% means Mahoning River Below West Ave At Youngstown 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 Mahoning River Below West Ave At Youngstown come from?

Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 03098600. 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 Mahoning River Below West Ave At Youngstown 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.