Paddle Report

Big Flat Creek river run

California, USA Big Flat Creek Class III-IV
Today high
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Tonight low
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Current flow
--
% of normal
42%
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Linked streamgauge
-- cfs
Gauge height
--
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Big Flat Creek -- California paddle run
Big Flat Creek California · Big Flat Creek
About this run

Big Flat Creek

Big Flat Creek is a popular whitewater river run located in northern California. The ideal streamflow range for the creek is between 400-800 cfs, with the best times to run the creek being in the spring and early summer months. The creek is rated as a Class III-IV river, with several challenging rapids and obstacles along the way.

The segment mileage of the Big Flat Creek is approximately 10 miles, with the river starting at the Big Flat Campground and ending at the junction with the Trinity River. Some of the notable rapids and obstacles on the creek include Drop and Suck, Leap of Faith, and Last Chance.

There are specific regulations in place for those who wish to run the Big Flat Creek. A permit is required to access the creek, and only non-motorized watercraft are allowed on the river. Additionally, visitors are required to pack out all trash and follow Leave No Trace principles.

Overall, Big Flat Creek offers a thrilling whitewater experience for experienced paddlers. It is important for visitors to follow regulations and practice safety while on the river.
StateCalifornia
RiverBig Flat Creek
ClassIII-IV
Elevation599 ft
Current flow--
Percent of normal42%
StreamgageUSGS 11468900
Latitude40.1423°
Longitude-124.1644°
Detailed forecast

Plan your run down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no. Watch the precipitation column on the meteogram; rain ahead of a run typically lifts flows 12-48 hours later depending on the basin.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks -- the upstream story that drives next week's flows.

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Regional flow

Regional streamflow levels

USGS streamgauges around Big Flat Creek -- useful for spotting upstream pulses and gauging which tributary is contributing what.

Whitewater safety

Check the flow before you run
Use the linked-gauge card and Regional Flow panel above. Class ratings change with flow -- a Class III at low water can become Class IV+ at high water.
Know your skill ceiling
Pick runs comfortably below your ceiling. Cold-water and big-water runs raise the consequences of any mistake.
Wear the right gear
Helmet, PFD, drysuit / wetsuit when water is below 60°F. Throw bag, knife, and whistle on your person, not in the boat.
Scout, set safety, and run with a team
Scout new rapids on foot, set safety with throw bags above the consequence pool, and run with at least one other competent paddler.
Respect the river
Strainers, undercuts, low-head dams, and wood can kill at any class rating. When in doubt, portage.

Set push alerts in the Snoflo app

Save Big Flat Creek as a favorite, set a discharge threshold (e.g. "alert me when flow hits 600 cfs"), and the iOS app pushes the moment the linked gauge crosses.

FAQ

About Big Flat Creek

What's the optimal flow for Big Flat Creek?

The optimal flow depends on the section and the craft. Check the Run Details panel for the linked gauge and current status.

How fresh is the cfs reading on this page?

The linked USGS streamgauge reports continuously (every 15 minutes); Snoflo refreshes throughout the day. Hover the streamflow sparkline to read individual datapoints.

What's the whitewater class?

See the Run Details panel for the class rating Snoflo tracks for this run. Class ratings change with flow -- a Class III at low water can become Class IV in high water.

Where do I put in / take out?

Tap Directions in the hero above to open driving directions to the put-in. For shuttle planning, check the Nearby Boat Launches panel and the river run operator's site.

Can I get alerts when flows hit the optimal range?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this run, set a discharge threshold, and you'll get a push the moment the gauge crosses.