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Allegheny River at Emlenton Pennsylvania
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Allegheny River

Photo: Tony Webster Opens in a new tab. · CC BY-SA 3.0

Should I go fishing?

Skip fishing here today.

No access method is recommended today. Review the live conditions below before choosing another river or day.

Rating updatedRiver local time:

Why this recommendation?

USGS shows 1,260 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1966-2025, 42 readings) show a median near 1,740 cfs and the lower quartile near 1,330 cfs; today's flow is below normal for the date. This is below normal, so edge depth, temperature, and pressure matter.

Available live dataHighHow much of the live flow, weather, and alert data came back.
Confidence in this recommendationHighCurrent flow, weather, alerts, and trip-critical signals support this decision.
Usually checks again about every 45 minutes

If you go

Check first
USGS 03012550 is the primary release check for the tailwater.
Try
Check release first, then choose a bank, boat, or wade plan.
Leave when
Skip or pivot when releases are rising, wading exits are unsafe, cold-water exposure is a concern, storms are building, or the exact PFBC special fishing rule reach has not been confirmed.

Flow and weather

Showing server-checked river conditions while current readings refresh.
Flow
1,260 cfs
Falling over about 6 hoursU.S. Geological Survey may revise this readingWater 70.7°F · 24h high 72.0°F · USGS provisional
Air forecast
74°F
Next 24h high
75.0°F

NWS air forecast near

Rain chance
8%
7-day U.S. Geological Survey chart

Recent flow

Discharge

1,360 cfs1,180 cfs
Sep 5Sep 12

Latest reading: 1,260 cfs. Falling over about 6 hours. Chart covers Sep 5 through Sep 12; readings are provisional and may be revised.

Latest stored weather check

Mostly Cloudy

Wind
8 mph
Weather checked
More forecast and source details

Mostly Cloudy

National Weather Service

Kinzua Dam, Pennsylvania

The National Weather Service forecast is temporarily unavailable.

Live data

Where these readings come from

Current U.S. Geological Survey gauge: Allegheny River at Kinzua Dam

Falling over about 6 hoursU.S. Geological Survey may revise this readingObserved
Water 70.7°F · provisional · 24h high 72.0°F provisionalWater observed · high observed
Official U.S. Geological Survey station Opens in a new tab.Official NWS forecast Opens in a new tab.

Flies for this time of year

Seasonal starting points, not a live hatch report. Match what you see on the water.

See flies for every season
SeasonWhat to look forFlies to try

Each fly name opens its matching Fly Box guide.

More fishing tips

Methods, fish species and trip notes

How to fish Allegheny River today.

Stable releases and cool weather make the trout plan stronger. Higher water pushes the better day toward bank safety, boats, streamers, or a warmwater mindset.

Low to moderate release

Fish seams, ledges, soft banks, and tailouts with nymphs, soft hackles, and streamers.

High release

Avoid risky wading. Focus on bank edges, boat plans, or a different river.

Clear summer water

Shift toward smallmouth poppers, crayfish, baitfish, and early or late light.

Cold gray days

Nymph buckets slowly and swing soft hackles or small streamers through softer tailouts.

Wading, bank fishing or floating?
Not recommended todayChoose another river or day

No access method is recommended in today's conditions. Review the live river and weather checks before making another plan.

Wading24/100

Not recommended today. Recheck the river, weather, and access before planning another trip.

Bank fishing24/100

Not recommended today. Recheck the river, weather, and access before planning another trip.

Floating24/100

Not recommended today. Recheck the river, weather, and access before planning another trip.

Full river report

Is Allegheny River worth the trip today? Check flow, weather, hatches, access, and rules for Pennsylvania before you go.

The upper Allegheny below Kinzua Dam has a trout-focused special fishing rule reach and a broader warmwater river plan downstream. The first decision is flow: if the dam release is pushy, fish from safe banks, boats, or softer edges instead of forcing a wade.

Fishing words used on this page
U.S. Geological Survey (USGS) gauge
A USGS gauge is an official river station that measures flow or water height.
Pennsylvania Fish and Boat Commission (PFBC)
PFBC is the Pennsylvania agency that sets fishing rules and manages fish and access programs.
Cubic feet per second (cfs)
Cubic feet per second, or cfs, shows how much water passes the gauge each second.
Technical fishing
Technical fishing means the fish are hard to fool, so careful casts and natural drifts matter.
Nymph
A nymph is a young water insect. Anglers also use the word for a fly that copies it.
Seam
A seam is the line where fast and slow water meet.
Tailout
A tailout is the shallow, slower water at the lower end of a pool.
Blue-winged olive (BWO)
Blue-winged olives, or BWOs, are small mayflies that often hatch in cool or cloudy weather.
Caddis
Caddis are small water insects. The adults look a little like tiny moths.
Dry-dropper
A dry-dropper rig has a floating fly with an underwater fly tied below it.
Why this call

Why this score

FlowUse caution

USGS shows 1,260 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1966-2025, 42 readings) show a median near 1,740 cfs and the lower quartile near 1,330 cfs; today's flow is below normal for the date. This is below normal, so edge depth, temperature, and pressure matter.

Target choiceUse caution

Coldwater targets are a poor choice in this heat window, but warmwater targets may still be reasonable where legal and ethical.

Water temperatureUse caution

USGS water temperature is about 70.7F. USGS marks the temperature data provisional and may revise it. Do not pressure trout or salmonids in warm water.

Public alertUse caution

A Flood Watch is active near this forecast point, so the score is capped until runoff, clarity, crossings, and road access are checked. NWS alert: Flood Watch issued September 12 at 10:23AM EDT until September 13 at 4:00AM EDT by NWS State College PA.

SeasonHelps

Late summer: Warmwater fly fishing becomes the safer and more useful plan.

Trip notes

Check these before you choose a reach.

Best flows

Use USGS 03012550 at Kinzua Dam as the primary release check. Stable moderate flows can open trout seams and edges. Rising or heavy releases should move the plan to banks, boats, or another river.

When to leave

Skip or pivot when releases are rising, wading exits are unsafe, cold-water exposure is a concern, storms are building, or the exact PFBC special fishing rule reach has not been confirmed.

Local plan

Start with the Kinzua gauge, PFBC rules, trout classification context, and the Allegheny water-trail page. Decide whether the day is a tailwater trout plan near Warren or a broader warmwater float plan downstream.

Backup water

If the Allegheny is high, crowded, too cold, or not matching the trout plan, compare Clarion River for mixed float fishing, Oil Creek for smaller trout water, or Little Juniata River for a more technical trout day.

Allegheny River access and rules.

Use these places as starting points. Open the access link below and check posted signs before you park or enter.

Before you go

Check the current PFBC summary book for Allegheny River special fishing rule trout reach details, harvest rules, Lake Erie or warmwater differences, and statewide rules.

Where to access the river

Kinzua Dam tailwater

Primary trout-flow orientation. Check PFBC rules and release level before fishing.

Warren and Conewango area

Useful base for the special fishing rule reach and broader water-trail planning.

Allegheny water trail access

Best for float, boat, and downstream warmwater planning.

  • Big-river access does not mean safe wading access.
  • PFBC water-trail material is useful for ramps, logistics, and reach planning.
  • Check consumption advisories if keeping warmwater fish.

If this water does not fit the day, check another report before you start the drive.

PennsylvaniaClarion River fishing reportA nearby western Pennsylvania smallmouth and trout-context river.PennsylvaniaPine Creek fishing reportA Pennsylvania trout and smallmouth benchmark with a different canyon feel.PennsylvaniaLaurel Hill Creek fishing reportA smaller Laurel Highlands trout option when big river flows are too much.
See all Pennsylvania fly fishing reports

Sources and report details

Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.

Rules and closures

Check what is allowed, where the rule applies, and whether the river is open.

Flow and weather

Check the latest river reading and forecast before you leave.

Access and land

Check public entry points, land rules, and seasonal access changes.

See all 5 checked sources

Rules and closures

Check what is allowed, where the rule applies, and whether the river is open.

Flow and weather

Check the latest river reading and forecast before you leave.

Access and land

Check public entry points, land rules, and seasonal access changes.

Source check is old. Last checked . Open the official links now and check for changes.

See something wrong? Report a source problem. Please do not send private spots or private access notes.

How this report was checked

How this report was checked

Trip guidance checked

What was checked: This Allegheny River report is maintained from Pennsylvania Fish and Boat Commission regulations, trout classification information, PFBC Allegheny water-trail access guidance, USGS Kinzua Dam flow data, weather, media-credit, and upper Allegheny tailwater planning sources.

Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.

First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.

Quick questions

What should I check first before fishing the Allegheny River?

Check USGS 03012550 for the Kinzua release, then confirm PFBC special fishing rule language for the exact reach.

Where should a first-time visitor start on the Allegheny River?

Start around Kinzua Dam and Warren for the trout plan, or use PFBC water-trail access for a float plan.

Can I wade the Allegheny River?

Sometimes, but this is a big tailwater. If releases are high or rising, stay on safe edges or use a boat.

What flies should I bring for the Allegheny River?

Bring the seasonal fly box, a few confidence nymphs or streamers, and enough tippet to change when flow, clarity, temperature, or pressure changes.