# USGS WaterFlow — Live local water flows

> Live local water flow data and forecasts from USGS streamgauges. (iPhone/iPad app by Thundergrouse LLC.)

- Source: https://appshunter.io/ios/app/usgs-waterflow/id6759414459 (this page in markdown: same URL + `.md`)
- Developer: [Thundergrouse LLC](https://appshunter.io/developer/1878542063)
- Category: Weather, Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English
- Released: 2026-08-17
- Data updated: 2026-09-17
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/usgs-waterflow/id6759414459/reviews.md

## What is USGS WaterFlow?

WaterFlow turns every USGS streamgauge in the country into a pocket-sized field guide for moving water.

It was built for one moment: you wake up, glance at your phone, and the river is already there. The Home Screen widget shows live flows for the gauges you watch — no app to open, no websites, just the number that decides your day.

Behind the widget is the full field guide: real-time flow rates (cubic feet per second), gauge height, water temperature, and the local NOAA forecast — drawn straight from the official sources, no middleman.

— HOME-SCREEN WIDGET —
The reason WaterFlow exists. Pin the gauges you watch and wake up to their current flow: big clear numbers with a seven-day sparkline each. Small, Medium, and Large layouts, plus lock-screen accessory widgets so even a glance at the clock tells you whether the river came up overnight.

— BY STATE —
Pick a state, see every active gauge in it, sort by flow, name, or distance.

— NEARBY —
Use your location to find every gauge within a configurable radius. Skunked? Try the next basin over.

— FAVORITES —
Save the gauges you watch most. Each favorite shows the current flow and a sparkline of the last seven days.

— MAP —
Every USGS gauge in the country on one map. Quiet water-blue ripple pins read at a glance: the rings show how much water is moving, and the ink fades as a reading ages. Tap a pin for a quick read; tap through for the full station detail.

— STATION DETAIL —
One big, clear number carries the current reading, with simple charts underneath for the last seven days. Flow, gauge height, water temperature, and the NOAA forecast for that spot — nothing between you and the water.

— FLOW ALERTS —
Set a low or high flow threshold on any gauge. Get a push notification when the river crosses the line — first run, peak, drop, whatever you set.

— DATA YOU CAN TRUST —
WaterFlow doesn't make up numbers. It reads them straight from the U.S. Geological Survey's Water Services API and the National Oceanic and Atmospheric Administration's forecast service. If the gauge is offline or the reading is old, the app tells you.

— WHO IT'S FOR —
Built for the people who actually go outside before checking conditions: anglers, kayakers, rafters, paddleboarders, swimmers, photographers, naturalists, and anyone who cares whether the river is rising or falling tonight.

— PRIVACY —
WaterFlow doesn't track you. Your location is used only to find nearby gauges and never leaves your device beyond the rough query USGS needs to return results. Your favorites and alert settings live in your phone's secure storage, shared only with the WaterFlow widget. No analytics, no advertising, no third-party SDKs.

Data: U.S. Geological Survey Water Services (waterservices.usgs.gov) and the National Weather Service (weather.gov). WaterFlow is not affiliated with either agency.

## Key features

- Home screen widgets for live flow data
- Real-time flow rates and gauge height
- Local NOAA weather forecasts
- Find gauges by state or nearby location
- Save favorite gauges
- Map view of all USGS gauges
- Custom flow alerts

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/usgs-waterflow/id6759414459/reviews.md

### 5/5 — Very Useful

*2026-08-18*

Great interface, accurate, and extremely useful. 5/5!

## Frequently asked questions about USGS WaterFlow

### What is USGS WaterFlow?

USGS WaterFlow provides live local water flow data from USGS streamgauges across the country. It displays real-time flow rates, gauge height, water temperature, and local NOAA forecasts directly from official sources.

### Does USGS WaterFlow have ads?

No, USGS WaterFlow is ad-free. The app explicitly states it does not use advertising or third-party SDKs, ensuring a clean user experience.

### What devices support USGS WaterFlow?

USGS WaterFlow is available for iPhone and iPad devices. It is designed to leverage features like home screen widgets and lock screen accessories on compatible iOS devices.

### How often is USGS WaterFlow updated?

The latest version of USGS WaterFlow is 2.0.1, which was released on August 18, 2026. The app was initially released on August 17, 2026, indicating regular updates.

### Can I set alerts for river conditions with USGS WaterFlow?

Yes, USGS WaterFlow allows you to set flow alerts. You can define low or high flow thresholds for any gauge and receive push notifications when the river crosses your set line.

### Is my location data used by USGS WaterFlow?

Your location is used by USGS WaterFlow solely to find nearby gauges. This data is not tracked or shared beyond the rough query needed to return results and never leaves your device.

### What information does the USGS WaterFlow widget show?

The Home Screen widget for USGS WaterFlow displays live flows for your chosen gauges with big, clear numbers and a seven-day sparkline. It offers small, medium, and large layouts, plus lock-screen accessory widgets.

### How does USGS WaterFlow compare to other weather apps?

Unlike general weather apps, USGS WaterFlow focuses specifically on detailed, real-time water flow data from official USGS sources. It provides granular information for outdoor enthusiasts that standard weather apps do not offer.

## Version history (last 1 release)

### 2.0.1 — 2026-08-18

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-17.*