
Flow Alert
Quick access to river data.
0 ratings
Free
Rating summary
About
Flow Alert provides quick access to flow , stage, temperature, and turbidity data made available by the United States Geologic Survey (USGS).
Download USGS gauges and add favorites to a separate list. Create nicknames for your favorite gauges.
Add a widget on your home screen that shows your selected parameter for your favorite gauges. Currently, widgets update automatically approximately every 15 minutes and show a bell icon if an alert is triggered.
Add alerts to notify yourself when your gauge meets your defined criteria. Multiple alerts may be set for each favorite gauge. Manage your alerts for all gauges in one screen.
Select a gauge from the list to see an interactive graph of the past 7 days of available data.
Data provided by:
-United State Geological Survey (USGS)
Disclaimer:
Flow Alert provides quick access to flow , stage, temperature, and turbidity data made available by the United States Geologic Survey (USGS) via USGS Water Data APIs. All data shown in Flow Alert are downloaded from the USGS Water Data APIs.
Flow Alert is not affiliated with, endorsed by, or representative of any government entity including USGS. Flow Alert does not take credit, responsibility, or ownership for any data downloaded from USGS's Water Data API. It is simply a tool that you can use to view the data made available by USGS.
Data Source Link: https://api.waterdata.usgs.gov/
If you have feedback, suggestions, or feature requests, please e-mail me at flowalertapp@gmail.com...I'd appreciate it! You may also submit feedback through the in-app feedback page.
Show more
What's New in Flow Alert
1.1.0
October 23, 2026
-Migrated to the new USGS Water Data API with faster cached loading and fewer data requests -Added alert history to review triggered alerts -View and edit alert thresholds directly on graphs -Improved graph layouts and data accuracy -Improved background refresh, notifications, and widget reliability -Clearer background work and widget work status
More




