River Flood Alerts &
Gauge Monitoring
Know when your river is rising before it reaches your road, your basement, or your property. StormCast monitors USGS gauges in real time and alerts you the moment levels cross your threshold.
Get on Google PlayWhat You'll Receive
Gauge Rise Alerts
Set a custom water level threshold in feet. StormCast checks your gauge every 5 minutes and pushes an alert the moment the river crosses it.
Flash Flood Warnings
NWS flash flood warnings for your county pushed directly to your phone — faster than turning on the TV or checking a website.
Flood Watches & Advisories
Early heads-up when flood conditions are developing so you have time to prepare, move vehicles, or check on family.
Search Any US Gauge
Search 10,000+ USGS gauge stations by river name, city, or station code. Monitor your creek and a river downstream simultaneously.
How River Gauge Monitoring Works
Add Your Gauge
Search for your local river in StormCast. The app searches all USGS stream gauge stations nationwide. Tap to add — alerts are enabled automatically.
Set Your Threshold
Choose a water level in feet that matters to you — whether that's the road that floods at 8 ft, or the official NWS flood stage for your gauge.
Get Notified Early
StormCast checks USGS data every 5 minutes. When your river crosses the line, you get a push notification with the current level and rate of rise.
Frequently Asked Questions
How does StormCast monitor river levels?
StormCast connects to USGS Water Services, which maintains thousands of real-time stream gauge stations across the US. You search for your local gauge, add it, and StormCast checks the level every 5 minutes.
Can I set my own alert threshold?
Yes. You set a custom water level in feet. You can also use the official NWS action stage, flood stage, or major flood stage levels if they're defined for your gauge.
How many gauges can I monitor?
Unlimited. Monitor your creek, the nearest large river, and a gauge upstream that gives you early warning — all at the same time.
What if my local gauge doesn't have an NWS flood stage defined?
That's common for smaller streams. Just use a custom threshold based on your own knowledge of when the river causes problems at your location.
Does it work anywhere in the US?
Yes. USGS maintains gauges in all 50 states. If there's a gauge within reach of your area, you can monitor it in StormCast.