Updated for iOS 13 and Dark Mode

FloodWatch allows users to monitor rivers and streams throughout the United States. Add USGS gages to your favorites for quick monitoring of current gauge height, precipitation, and flood stage.

By leveraging data from the US Geological Survey and National Weather Service, FloodWatch presents the most recent and historical river heights, precipitation totals, discharge, and flood stage data. Graphs are available to help you visualize the rise and fall of the river, precipitation, and streamflow. Note that only US Geological Survey gauges with real-time data capabilities are surfaced within the application; not all United States gauges are available.

FloodWatch is also geared towards those with interests in or near flood plains. If your home or other interests have been flooded in the past or could be flooded in the future, FloodWatch allows you to easily keep an eye on any potential flooding issues.

What’s New

Version 1.10.0

FloodWatch: the social distancing and self-quarantine update!

- Add support for Dark Mode
- Design updates for iOS 13
- Make gauge graph duration options more apparent
- Make ads less intrusive
- Various bug fixes and performance improvements

Ratings and Reviews

3.0 out of 5
7 Ratings

7 Ratings

Ironeagle25 ,

Needs to update automatically

Good app but would be nice to have the favorites list update automatically and send out notifications when reaching flood stage.

Contrari ,

Paid for ad free twice.

This app has been useful to me for a long time as I live in a flood zone. It doesn’t do much, and what it does do is not in real time, but it’s helpful. However, over the years the ads have gotten more and more intrusive. They take over the screen and it requires closing and reopening the app. I think developers deserve to get paid, either by users or advertising, but not both. I’ve given this dude $1.99 on at least two occasions to no effect. Mind you, there have never ever been any added features. He simply converts 3 data points from the USGS and makes it work on a mobile platform. I should ask for my money back. I’ve bought a real rain gauge and will check the creek height using a device with larger screen. I would have thought the app had been abandoned, but dev is selling more ads all the time and has updated enough to work on iOS 13.

Developer Response ,

Hi Contrari,

Thanks for the feedback and for being understanding. However, you're clearly misreading the user interface for purchasing the removal of ads. There's a very clear button on the "Remove Ads" screen that says "Remove Ads." The $1.99 purchase you describe is for leaving a "tip," which does not remove ads. It's merely a goodwill gesture to support further development.

You need to purchase the ad removal in-app purchase, which is currently $8.99 USD.

Please email As long-time user, I'd love to gather more feedback from you. Thanks in advance!

WmsnCitizen ,

Good App Gone Bad

This was an almost perfect app. It provided the data I needed for the several streams I needed to watch. The ads were obtrusive, but tolerable. It has lately become entirely unusable. It provides the data for the top site in my list, but if I try to select any other site, it launches a loud bright full-page animated ad that cannot be cancelled for ten or fifteen seconds. When it is cancelled, you go back to the data for the original site. In other words, the $9 ad-free ransom the developer is demanding is essential to view more than one site. Thanks but no thanks!

App Privacy

The developer, D5G Technology, LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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