GaugeWatcher 4 is in public beta.Join on TestFlight

Is it
running?

GaugeWatcher puts every river you paddle on one screen and checks each one against the flows you like to run. Open it, see green, load the boat.

Download on the App Store Free on iPhone and Mac

My rivers

Updated 4 min ago

  • Gore Canyon

    Colorado River near Kremmling, CO

    1,120 cfs Running

  • Bailey

    N. Fork South Platte at Bailey, CO

    331 cfs Running

  • Rockwood Box

    Animas River at Durango, CO

    480 cfs Too low

  • Ashlu Mini Canyon

    Ashlu Creek near Squamish, BC

    58 m³/s Too high

  • Kaituna

    Kaituna River at Okere Falls, NZ

    32 m³/s Running

Example readings. Shaded band is your range.

Three steps, then just glance

  1. 1

    Find your run

    Search by the name you actually use — Gore Canyon, Bailey, Rockwood Box — or browse the map. No station IDs.

  2. 2

    Set your range

    Tell it the lowest and highest flow you like to run. Your medium isn't anyone else's.

  3. 3

    Glance

    Green is running, orange is too low, red is too high. Pin a favorite to your Home Screen widget.

Built for the drive to the put-in

On your Mac, too

Every gauge on a map, with readings and history in a sidebar. Plan the weekend on the big screen.

GaugeWatcher on a Mac: a map of Colorado gauges beside a gauge's current reading and flow history chart

12,000+

gauges across three countries

One app instead of a dozen agency websites, each with its own map and its own units.

United States
USGS
NOAA
Colorado DWR
Canada
Environment and Climate Change Canada
BC Hydro
Metro Vancouver
New Zealand
Greater Wellington Regional Council
West Coast Regional Council
Bay of Plenty Regional Council

Questions

Is it free?

It's free to download, and you don't need an account. Some features, like flow alerts, may need a subscription.

Where does the data come from?

Straight from the agencies that run the gauges. Each reading shows when the agency took it.

Does a green dot mean the river is safe?

No. A gauge tells you the flow, not the hazards. Scout, check local beta, and make your own call. Read the disclaimers

My river isn't in the app.

Tell us which gauge you use and we'll look at adding it. Contact us

Is there a Mac app?

Yes. The same download from the App Store runs on iPhone and Mac.

See what's running this weekend.

Download on the App Store