7-day U.S. Geological Survey chart
Recent flow
Discharge
3,790 cfs1,830 cfs
Sep 25Oct 2
Latest reading: 3,740 cfs. Stable over about 6 hours. Chart covers Sep 25 through Oct 2; readings are provisional and may be revised.
Should I go fishing?
Skip fishing here today.
Flow is high for this time of year.
No access method is recommended today. Review the live conditions below before choosing another river or day.
Fishing rating40
Rating updatedRiver local time:
Why this recommendation?
USGS shows 3,740 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1966-2026, 43 readings) show a median near 2,140 cfs and the upper quartile near 3,120 cfs; today's flow is high for the date. Fishable water may exist, but do not rate it highly without a safe access, clarity, and wading or boat plan.
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
- 3,740 cfs
- Stable over about 6 hoursU.S. Geological Survey may revise this readingWater 67.1°F · 24h high 67.8°F · USGS provisional
- Air forecast
- 59°F
- Next 24h high
- 60.0°F
NWS air forecast near
- Rain chance
- 4%
Latest stored weather check
Mostly Cloudy
- Wind
- 6 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
Stable over about 6 hoursU.S. Geological Survey may revise this readingObserved
Water 67.1°F · provisional · 24h high 67.8°F provisionalWater observed · high observed
Flies for this time of year
Seasonal starting points, not a live hatch report. Match what you see on the water.
- Blue-Winged Olive PatternsBWO emergerView fly guide ↗
- Zebra MidgeView fly guide ↗
- Soft-Hackle Wet Fliessoft hackleView fly guide ↗
- Woolly Buggerolive buggerView fly guide ↗
- Sculpin PatternssculpinView fly guide ↗
See flies for every season
SeasonWhat to look forFlies to try
January to March
What to look forMidges, little black stones, BWOs, and slow nymph windows
April to June
What to look forHendricksons, March Browns, sulphurs, caddis, BWOs, and spinner falls
July to September
What to look forTricos where present, ants, beetles, hoppers, and shade-line terrestrials
Flies to try
antAnt Patterns→beetleBeetle Patterns→small hopperGrasshopper Patterns→small jig nymphJig Fly Patterns→
Also try Trico, dry-dropper
October to DecemberThis season
What to look forBWOs, midges, caddis remnants, and streamer windows after rain
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.
Wading20/100
Not recommended today. Recheck the river, weather, and access before planning another trip.
Bank fishing32/100
Not recommended today. Recheck the river, weather, and access before planning another trip.
Floating44/100
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 3,740 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1966-2026, 43 readings) show a median near 2,140 cfs and the upper quartile near 3,120 cfs; today's flow is high for the date. Fishable water may exist, but do not rate it highly without a safe access, clarity, and wading or boat plan.
Target choiceUse caution
Trout and salmonids need extra handling discipline in this temperature window; consider warmwater targets where that matches the river and rules.
Water temperatureUse caution
USGS water temperature is about 67.1F. USGS marks the temperature data provisional and may revise it. Fish early and stop if handling stress is likely.
SeasonHelps
Fall: Cooling water improves streamer and trout confidence.
Public alertsHelps
No active NWS alert was returned for this forecast point.
Trip notes
Check these before you choose a reach.
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.
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.
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.
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.
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.
What this source covers
Open the current rules and check the river section, season, and special limits.
What this source covers
Open the current rules and check the river section, season, and special limits.
Flow and weather
Check the latest river reading and forecast before you leave.
What this source covers
Open this page and check the latest safety advice before your trip.
What this source covers
Open this river reading to check the latest level, flow, and update time.
Access and land
Check public entry points, land rules, and seasonal access changes.
What this source covers
Open the land or access page, then check signs before you park or enter.
How this report was checked
How this report was checked
Reviewed byBlueStreamFly River Review Team
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.