7-day U.S. Geological Survey chart
Recent flow
Discharge
123 cfs110 cfs
Sep 4Sep 11
Latest reading: 120 cfs. Stable over about 6 hours. Chart covers Sep 4 through Sep 11; readings are provisional and may be revised.
Should I go fishing?
Yes — worth going.
No single best way to fish. Wading, Bank fishing, and Floating have the same top score. Use current access, footing, weather, and local rules to choose.
Fishing rating94
Rating updatedRiver local time:
Why this recommendation?
USGS shows 120 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1927-2025, 77 readings) show a typical middle range of 108 cfs to 142 cfs. Flow is within the typical range for this date, so weather, temperature, and access become the next checks.
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
- Use USGS 11355500 for upper Hat Creek flow context, with the caveat that it is not a perfect Powerhouse 2 gauge.
- Try
- Watch the water before casting. Hat Creek fish often reveal lanes and timing.
- Leave when
- Skip Hat Creek when hot afternoons threaten trout stress, Forest Service alerts or road restrictions affect the area, the clearest public water is already crowded, or you cannot confirm the exact special fishing rule reach you plan to fish.
Flow and weather
Showing server-checked river conditions while current readings refresh.
- Flow
- 120 cfs
- Stable over about 6 hoursU.S. Geological Survey may revise this readingWater 47.5°F · 24h high 51.1°F · USGS provisional
- Air forecast
- 64°F
- Next 24h high
- 79.0°F
NWS air forecast near
- Rain chance
- 0%
Latest stored weather check
Mostly Clear
- Wind
- 5 mph
- Weather checked
More forecast and source details
Mostly Clear
National Weather Service
Hat Creek forecast point
The National Weather Service forecast is temporarily unavailable.
Live data
Where these readings come from
Current U.S. Geological Survey gauge: Hat Creek near Hat Creek
Stable over about 6 hoursU.S. Geological Survey may revise this readingObserved
Water 47.5°F · provisional · 24h high 51.1°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 PatternsBWOView fly guide ↗
- RS2View fly guide ↗
- Zebra MidgeView fly guide ↗
- Griffith's GnatView fly guide ↗
- Soft-Hackle Wet Fliessoft hackleView fly guide ↗
See flies for every season
SeasonWhat to look forFlies to try
Late winter to spring
What to look forMidges, BWOs, early caddis
Late spring
What to look forCaddis, PMDs, mayflies
Flies to try
Summer
What to look forCaddis, terrestrials, small mayflies
FallThis season
What to look forBWOs and midges
Each fly name opens its matching Fly Box guide.
More fishing tips
Methods, fish species and trip notes
How to fish Hat Creek today.
A good Hat Creek plan is precise and conservative: pick the legal reach, read the gauge as context, watch wind and light, then fish small dries, nymphs, or soft hackles with careful line control.
Clear low water
Use long leaders, small flies, and bank-first approaches before entering the stream.
Stable riffle flow
Soft hackles, small nymphs, and emergers can work when fish feed in broken water.
Meadow glide
Watch rise forms, cast from low angles, and avoid lining fish with heavy leaders.
Warm afternoons
Check temperature, fish early, and stop trout fishing if water conditions are stressful.
Wading, bank fishing or floating?
Access choicesNo single best option
Wading, Bank fishing, and Floating have the same top score. Use current access, footing, weather, and local rules to choose.
Wading94/100
Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
Bank fishing94/100
Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.
Floating94/100
A float is in play where this report supports boat access and wind, releases, and shuttle logistics are manageable.
Full river report
Is Hat Creek worth the trip today? Check flow, weather, hatches, access, and rules for California before you go.
Hat Creek rewards stealth, small flies, and careful wading. The wild-trout area has current CDFW rules that should be checked before relying on older management-plan language.
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.
- 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.
- Presentation
- Presentation means how you cast and move the fly so it looks natural to a fish.
- Riffle
- A riffle is shallow, fast water broken by rocks.
- 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.
- Emerger
- An emerger copies an insect as it rises from below the water toward the surface.
- Midge
- Midges are tiny flies and a common trout food, especially in cold water.
Why this call
Why this score
FlowHelps
USGS shows 120 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1927-2025, 77 readings) show a typical middle range of 108 cfs to 142 cfs. Flow is within the typical range for this date, so weather, temperature, and access become the next checks.
SeasonHelps
Fall: Cooler weather can bring BWOs, midges, and lighter pressure.
Water temperatureHelps
USGS water temperature is about 47.5F, and the rolling 24-hour high did not trigger a heat caution. USGS marks the temperature data provisional and may revise it.
Public alertsHelps
No active NWS alert was returned for this forecast point.
Fishing usefulnessHelps
Skip Hat Creek when hot afternoons threaten trout stress, Forest Service alerts or road restrictions affect the corridor, the clearest public water is already crowded, or you cannot confirm the exact special-regulation reach you plan to fish.
Trip notes
Check these before you choose a reach.
Use USGS 11355500 as a trend tool, not a magic Powerhouse 2 number. Stable or gently falling flow is the cleanest signal for technical dry-fly and light-nymph plans. A sudden bump, strong wind, or off-color water should push you toward riffles, shorter sessions, or a different river.
Skip Hat Creek when hot afternoons threaten trout stress, Forest Service alerts or road restrictions affect the area, the clearest public water is already crowded, or you cannot confirm the exact special fishing rule reach you plan to fish.
Pick the access style before tying on flies: use Hat Creek Park for a quick roadside check, the Powerhouse 2 area for the classic technical session, and the Old Station or Fall River Mills side of the district for campground, alert, and weather logistics.
If Hat Creek is too bright, crowded, warm, or difficult to fish cleanly, shift to Fall River for a different spring-creek style, Hot Creek if you want another technical small-fly test with stricter access discipline, or the Feather River when you want a larger-water change of pace.
Hat Creek 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
Verify CDFW's current Hat Creek rules before fishing. Source review flagged the Lake Britton-to-Baum Lake reach, excluding the Hat No. 2 intake canal, as artificial-lure, barbless-hook, zero-trout water under current CDFW rules, but the official source controls.
Where to access the river
Hat Creek Wild Trout Area context
The famous technical reach should be checked against current CDFW boundaries and rules.
Powerhouse 2 area
A key planning landmark for riffle and meadow-water tactics.
Hat Creek Ranger District
Forest Service access, campgrounds, alerts, and recreation information should be checked before visiting.
Hat Creek Park and local access
Useful local access context, with county and posted-site rules to respect.
- CDFW current rules are the source to use, not old plan language that may list outdated harvest rules.
- USGS 11355500 is useful flow context but is not a perfect gauge for every wild-trout-area lane.
- Forest Service alerts can affect camping, fire use, roads, and recreation access.
- Clear water and heavy pressure make crowd spacing important.
- Bait, wading, and harvest assumptions should be checked carefully because sensitive species and special rules apply.
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.
More helpful links
Use these links for stocking, safety, and other local details.
See all 7 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.
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.
What this source covers
Open the land or access page, then check signs before you park or enter.
More helpful links
Use these links for stocking, safety, and other local details.
What this source covers
Open this page for more river information and check when it was last updated.
What this source covers
Open this page for more river information and check when it was last updated.
How this report was checked
How this report was checked
Reviewed byBlueStreamFly River Review Team
Trip guidance checked
What was checked: This Hat Creek report combines official regulation, flow, weather, access, and trout-program sources with angler-focused planning guidance. Public review dates change only after material source review or content improvements.
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 gauge should I use for Hat Creek?
Use USGS 11355500 near Hat Creek for flow context, while remembering it is not perfect for every wild-trout-area lane.
Is Hat Creek catch and release?
Current source review flagged zero-trout harvest for the key special fishing rule reach. Check CDFW's official rules before fishing.
What flies should I bring?
Bring BWOs, PMDs, caddis, midges, ants, beetles, pheasant tails, perdigons, soft hackles, and small emergers.
Is Hat Creek beginner friendly?
It is accessible in places, but the best wild-trout water is technical and rewards careful presentation.