Blue Liner Flows
USGS River Flow Information
Free · In-App Purchases
Aggregated data from the USGS and NOAA to bring you the most complete stream information available.
With Blue Liner Flows, you are only one click away from easy access to detailed and comprehensible river flow information. With data aggregated from both the USGS and NOAA, parameters such as discharge, temperature, turbidity, dissolved oxygen, pH, and gauge height are available for thousands of rivers and streams across the U.S. This simple and easy-to-use app offers endless searching and viewing options, allowing you to effortlessly check in with your favorite streams. And, with an interactive map embedded within the interface, exploring and gaining directions to new rivers has never been made easier. Blue Liner Flows also gives you the ability to categorize any watershed into your own set of personalized tags, making organization a breeze. These features and many more can be available to you and have never been more accessible.
- Set up alerts to be directly notified when river conditions change.
- Use widgets to gain practical flow information at a glance directly from your Home Screen, Lock Screen, or Today View.
- Organize streams under your own array of fully customizable tags.
- Along with NOAA river forecasts, use detailed weather information such as barometric pressure, cloud cover, and more to plan your day on the water.
- Useful for any activity on the river, whether it be fishing, rafting, kayaking, boating, or even swimming!
All river gauge information is provided by the USGS and NOAA.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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Minor fixes.
The developer, Ryan Olson, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
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Information
- Provider
- Ryan Olson
- Size
- 3.9 MB
- Category
- Weather
- Compatibility
Requires iOS 17.6 or later.
- iPhone
Requires iOS 17.6 or later. - iPad
Requires iPadOS 17.6 or later. - Mac
Requires macOS 14.6 or later. - Apple Vision
Requires visionOS 1.3 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Premium Lifetime Edition $19.99
- Premium Annual Subscription $6.99
- Copyright
- © 2026 Ryan Olson