New Jersey
Big Flatbrook
Location Snapshot
Big Flatbrook is a northwestern New Jersey trout stream running through the Stokes State Forest and Delaware River corridor. Brown, rainbow, and brook trout are the primary angling targets.
Current River Rating
Fair · 56
Conditions are mixed. Review the details below before heading out.
Scores are model-specific and are not directly comparable across water types.
Partial water evidence · Medium confidence
Should I Go?
Wait
Timing Outlook
This timing outlook is informational only; current river conditions remain Fair.
Why
- Very clear skies may make trout more cautious in shallow water.
- Water temperature is unavailable.
Favorable Factors
- Recent precipitation has been light.
- Light wind should make casting and boat control easier.
Timing Evidence
Dawn low light is favorable.
Current Readings
- Flow
- 34.1 CFS
- Gage Height
- 2.06 ft
- Water Temperature
- Not available
- Observation Time
- Oct 20, 2026, 9:00 AM
Updated recently · Nearby USGS station 01440000 · Proxy monitoring location
Readings from past 7 Days
Loading readings from the past 7 days…
Historical readings are provided for context. Readings outside the current freshness window are not used to rate current conditions.
Better Nearby Options
Checking nearby StrikeTracks waters…
Preliminary guidance only. Always assess current weather, access, water depth, current speed, and your own ability before entering the river.
Changing Conditions Advisory
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Weather Near Gauge
Current Weather
Clear
Temperature
44°F
Feels like
37°F
Wind
7 mph NE
Wind gust
9 mph
Current precipitation
0.00 in
Updated
Oct 20, 2026, 5:45 AM
Recent Rainfall
Estimated precipitation near this gauge
Last 6 hours
0.00 in
Last 24 hours
0.00 in
Last 48 hours
0.00 in
Little recent rainfall near this river.
Next 24 Hours
Tue 6 AM
Clear
Temp 44°F
Chance 0%
Precip 0.00 in
Wind 7 mph
Tue 10 AM
Clear
Temp 55°F
Chance 0%
Precip 0.00 in
Wind 8 mph
Tue 2 PM
Clear
Temp 65°F
Chance 0%
Precip 0.00 in
Wind 11 mph
Tue 6 PM
Clear
Temp 58°F
Chance 0%
Precip 0.00 in
Wind 6 mph
Tue 10 PM
Clear
Temp 48°F
Chance 0%
Precip 0.00 in
Wind 6 mph
Wed 2 AM
Clear
Temp 42°F
Chance 0%
Precip 0.00 in
Wind 6 mph
Four-Day Forecast
Tue, Oct 20
Clear
High 66°F / Low 43°F
Chance 0%
Precip 0.00 in
Max gust 25 mph
Wed, Oct 21
Overcast
High 60°F / Low 40°F
Chance 0%
Precip 0.00 in
Max gust 23 mph
Thu, Oct 22
Overcast
High 64°F / Low 39°F
Chance 0%
Precip 0.00 in
Max gust 29 mph
Fri, Oct 23
Partly cloudy
High 58°F / Low 40°F
Chance 0%
Precip 0.00 in
Max gust 23 mph
Weather and rainfall are estimated for this river's coordinates. Local conditions can vary, especially in mountainous terrain and during isolated storms.
Recent rainfall can influence river flow, but the timing and magnitude depend on watershed size, soil conditions, upstream reservoirs, and dam releases.
Weather data: Open-Meteo
Historical Flow
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Fishing Overview
Brown trout are stocked in the Big Flatbrook, along with brook and rainbow trout.
Fishery Profile
Documented species you may encounter at Big Flatbrook.
Species images are AI-generated illustrations for visual reference and may simplify natural variation. Fishery records are based on the cited agency sources. About fish illustrations
Target species
Brown Trout
Salmo trutta
- Expectation
- Primary
- Population
- Stocked
- Native status
- native
- Confidence
- High confidence
Brook Trout
Salvelinus fontinalis
- Expectation
- Common
- Population
- Stocked
- Native status
- native
- Confidence
- High confidence
Rainbow Trout
Oncorhynchus mykiss
- Expectation
- Common
- Population
- Stocked
- Native status
- introduced
- Confidence
- High confidence
Fishery characteristics
- Composition
- Stocked
- Great Lakes tributary
- No
Best seasons
- Spring
- Fall
Common techniques
- Fly fishing
- Nymphing
- Spinning
Stocking information
- Stocked
Brown Trout
Stocked · New Jersey Division of Fish and Wildlife
- Stocked
Brook Trout
Stocked · New Jersey Division of Fish and Wildlife
- Stocked
Rainbow Trout
Stocked · New Jersey Division of Fish and Wildlife
Official sources
Monitoring limitations
- The gauge used for the Big Flatbrook is on another reach, so it does not measure this fishing water.
Hatch Match
General fly suggestions
- Parachute-style dryGeneral attractor dry family — not a claim that a named mayfly is hatching.
- Pheasant-tail-style nymphGeneral nymph family for trout rivers without destination hatch timing.
- Elk-hair-style dryGeneral dry/attractor family. Pattern choice only — not a report that caddis are hatching.
- Woolly-bugger-style streamerGeneral streamer family. Not a forage or insect Hatch event.
These are general fishing suggestions, not a report of insects currently hatching at this destination.
Location and Access
USGS monitoring location
Sussex, New Jersey
The map marker represents the cataloged waterbody or monitoring location and may not indicate legal parking or public access. Confirm access through the official information before visiting.
River Details
County
Sussex
Management Category
Trout stream
Regulation Scope
Big Flatbrook / Flat Brook trout sections.
Regulation Summary
NJDEP trout regulations and wild/stocked section nuance may apply; confirm current seasons, methods, and limits.
Target Species
Brown Trout, Rainbow Trout, Brook Trout
Access, Parking, and Regulations
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