Paddle Report

Boundary Of Kalaupapa National Historical Park To Mouth At Pacific Ocean river run

Hawaii, USA Waihānau Stream 4.0 mi long Class III-IV
Today high
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Tonight low
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Current flow
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% of normal
148%
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Linked streamgauge
-- cfs
Gauge height
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 Boundary Of Kalaupapa National Historical Park To  Mouth At Pacific Ocean -- Hawaii paddle run
Boundary Of Kalaupapa National Historical Park To Mouth At Pacific Ocean Hawaii · Waihānau Stream
About this run

Boundary Of Kalaupapa National Historical Park To Mouth At Pacific Ocean

The Whitewater River Run in Hawaii is a popular destination for whitewater enthusiasts. The ideal streamflow range is between 100 and 300 cfs, providing a thrilling and challenging adventure for Class III-IV rapids. The segment mileage is approximately 8 miles, starting at the Boundary Of Kalaupapa National Historical Park and ending at the Pacific Ocean.

The river features several rapids and obstacles, including Paddle Bender, which is a Class IV rapid that requires expert maneuvering skills to navigate. Other notable rapids include Powerline, Rodeo, and The Screaming Left Turn.

To ensure the safety of visitors, there are specific regulations in place for the area. Anyone using the river must wear a personal flotation device and a helmet. Additionally, all visitors must abide by the rules and regulations set forth by Kalaupapa National Historical Park.

Overall, the Whitewater River Run is a challenging and exciting adventure for experienced whitewater enthusiasts. It is important to be aware of the specific regulations and safety requirements before embarking on this adventure.
StateHawaii
RiverWaihānau Stream
Run length4.0 mi
ClassIII-IV
Elevation88 ft
Current flow--
Percent of normal148%
StreamgageUSGS 16414200
Latitude21.1535°
Longitude-156.9564°
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 Boundary Of Kalaupapa National Historical Park To Mouth At Pacific Ocean -- 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 Boundary Of Kalaupapa National Historical Park To Mouth At Pacific Ocean 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 Boundary Of Kalaupapa National Historical Park To Mouth At Pacific Ocean

What's the optimal flow for Boundary Of Kalaupapa National Historical Park To Mouth At Pacific Ocean?

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.