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Fly fishing report · West
Tsiu River
A remote Yakutat-area coho planning report for weather, access, flies, safety, regulations, and realistic expectations when no public live gauge is available.
Check flow & weatherToday's river scoreMedium source confidence
44
Limited data
Verify conditions before committing.
No live gauge is verified here. Use weather, recent rain, local reports, and conservative judgment before committing.
Updated Jul 13, 11:17 PM UTCLive sources checked regularly
Planning fallbackVerify locally
Mode guidance is provisional because current water conditions are not fully verified.
Bank / edgeCheck
This report does not describe this as a primary mode. Verify legal access, depth, launches, and retreat options before planning around it.
FloatCheck
This report does not describe this as a primary mode. Verify legal access, depth, launches, and retreat options before planning around it.
Confirm before you leave
Flow and weather right now.
Use the flow trend to confirm the score before you leave. Weather can change the safest and most productive fishing window.
Loading current flow and weather.
River strategy
Build the plan around rain, access, and coho timing.
The Tsiu is a remote Yakutat-area river known mainly for coho runs. Because there is no verified public gauge for this report, the best planning starts with current weather, recent rain, air-charter logistics, and ADF&G emergency orders.
- Confirm current ADF&G Yakutat regulations and emergency orders before booking or fishing.
- Use the National Weather Service forecast and local reports as the first condition check because coastal rain can change water height and clarity quickly.
- Expect fly selection to revolve around coho presentations, visibility, and fish movement rather than trout-style insect matching.
- Treat access as a remote-travel problem: weather delays, air-taxi availability, bears, tides, and satellite communication matter.
Why this score moved
FlowNot verified
No verified live public gauge is attached, so the page cannot make a strong real-time call.
Short-term weatherUse caution
The forecast has storm or heavy-precipitation risk, so timing and access matter more than the score alone.
SeasonHelps score
Late summer: The first planning window for coho trips.
WeatherHelps score
The NWS forecast is about 55F with Rain Showers.
Public alertsHelps score
No active NWS alert was returned for this forecast point.
Read the water
What changes the plan.
Fish the Tsiu only when the trip logistics and river conditions line up. Good coho fishing usually depends on enough rain to move fish, enough clarity to present a fly, and safe access. If the river is too low, too warm, blown out, or inaccessible by aircraft, the best choice is to wait or switch plans.
Low and clear
Use lighter sink tips or floating-line presentations, smaller streamers, and careful approaches. Coho may hold lower, move less, or wait near tide-influenced water.
Fresh rain and rising water
Rain can pull coho into the river, but clarity and safety decide whether it is fishable. Watch for debris, soft banks, and fast color changes.
High or blown out
Do not force it. Heavy coastal rain can make the river unsafe and unfishable; wait for dropping water or use a local alternate.
Warm, dry spells
Low warm water can stress salmon. ADF&G archived Yakutat reports have warned that warm, dry conditions can reduce water levels and stress coho.
Field plan
Fish it with intention.
Best flows
Use National Weather Service forecasts, NOAA Alaska-Pacific River Forecast Center context, recent rainfall, and local air-service reports in place of a live gauge. The best fishing window is usually fishable color with moving coho and a safe weather window for both arrival and exit.
When to skip
Skip or delay the Tsiu when ADF&G emergency orders change the plan, storms threaten aircraft movement, recent rain erases visibility, bears or tides make the chosen water unsafe, or the trip lacks satellite communication and a realistic exit plan.
Local plan
Confirm Yakutat-area rules and emergency orders first, then call the access provider for runway or landing status, recent rain, bear activity, and fish movement. Pack for a weather delay rather than a same-day certainty.
Backup water
If the Tsiu is weathered out, off-color, or legally uncertain, research the Situk River first, then Yakutat road-area waters such as Lost River and Tawah Creek, or other remote systems only with current local access information.
Hatches & flies
Bring a flexible box.
TimingWhat to watchUseful flies
Pre-tripNo trout-style hatch driverPack coho streamers, flash flies, egg patterns where legal, and backup leaders
Reviewed family · report says “Pack coho streamers”Anadromous Baitfish and Coho Streamer PatternsSlim silver shiners and smelt differ from brighter pink, chartreuse, or flash-heavy coho attractors. Forage species, profile, flash level, color, and hook system remain labeled.See family guide ↗Reviewed family · report says “flash flies”Anadromous Baitfish and Coho Streamer PatternsSlim silver shiners and smelt differ from brighter pink, chartreuse, or flash-heavy coho attractors. Forage species, profile, flash level, color, and hook system remain labeled.See family guide ↗+ 1 more reviewed guide in the Fly Box Late August to SeptemberCoho movement after rainPink, chartreuse, purple, black, and blue coho streamers; sparse flash flies
Low clear waterVisibility and fish mood matter mostSmaller unweighted streamers, twitching flies, subdued colors, light tips
Stained waterColor and profile matter more than size aloneBrighter coho flies, larger profiles, leeches, intruders, and controlled swings
Reviewed family · report says “Brighter coho flies”Anadromous Baitfish and Coho Streamer PatternsSlim silver shiners and smelt differ from brighter pink, chartreuse, or flash-heavy coho attractors. Forage species, profile, flash level, color, and hook system remain labeled.See family guide ↗
Reviewed family · report says “leeches”Leech PatternsLeech patterns share an elongated moving silhouette, but material, weighting, hook orientation, and retrieve vary. Pine-squirrel, rabbit-strip, balanced, and Woolly Bugger forms remain separately labeled rather than being presented as one recipe.See family guide ↗+ 1 more reviewed guide in the Fly Box Around spawning salmonEgg and flesh food sourcesEgg patterns and flesh-style flies only where current rules and ethics support them
01
Call or check with local Yakutat air services before treating the trip as confirmed. Weather can change flight plans.
02
When coho are moving, cover water methodically with a swing, strip, or twitch-and-pause retrieve rather than standing on one pod too long.
03
Use bright flies when the river has color and smaller, cleaner profiles when the river is low and clear.
04
Avoid fishing over visibly stressed fish during hot, low, or stagnant conditions. Move to fresher water or pause the trip.
05
Make bear awareness part of the fishing plan: keep fish handled cleanly, manage food carefully, and stay alert around salmon water.
Access & responsibility
Know the entry. Know the exit.
Check the current ADF&G Southeast Alaska sport fishing regulations, the Yakutat Area special regulations, and all emergency orders before fishing. Emergency orders supersede published regulations, and salmon limits, gear rules, king salmon restrictions, and saltwater/freshwater boundaries can change.
Remote air access from Yakutat
ADF&G describes the Tsiu as an outlying remote system and advises checking with local air taxis for charter service.
Tidewater and lower river planning
Coho movement, tides, rain, and visibility can all matter near coastal water. Confirm local conditions before choosing a landing or fishing zone.
Yakutat fallback waters
If the Tsiu is inaccessible or unfishable, research Yakutat-area alternatives through ADF&G rather than forcing the original plan.
Transparent sources
Check the facts behind the plan.
Last material review: 2026-07-06
regulationADF&G Yakutat Management Area fishing informationbackgroundADF&G Yakutat fishing overview with Tsiu River noteregulationADF&G Southeast Alaska sport fishing regulationsregulationADF&G 2026 Yakutat Area special regulations PDFregulationADF&G Southeast emergency orders and press releasessafetyNational Weather Service forecast point near Tsiu RiverflowNOAA Alaska-Pacific River Forecast CenterbackgroundUSFWS public-domain image: Coho salmon and Dolly Varden in Southeast AlaskaaccessADF&G Yakutat Management Area access and fishing information
Common questions
Before you leave.
Is the Tsiu River a road-access fishery?+
No. This page treats the Tsiu as a remote Yakutat-area system. ADF&G notes that anglers should check with local air taxis for charter service to outlying systems like the Tsiu.
What is the main fish to plan around?+
Coho salmon are the main planning target. ADF&G describes the Tsiu as known mainly for coho runs.
Is there a live flow gauge for the Tsiu River?+
No verified public RiverReports or USGS live gauge is used for this report. Use weather, recent rain, local reports, and conservative judgment instead.
What should I check before booking a trip?+
Check ADF&G Yakutat regulations and emergency orders, NWS weather, local air-taxi availability, bear-safety needs, and backup plans for poor water or flight delays.