Know your street is flooding before the water reaches your door.
BayouWatch reads 45solar-powered bayou sensors around the clock and texts residents 30–60 minutes before their street floods — free, in five languages, no account required.
Built to watch bayous, not spreadsheets
47 solar-powered water-level sensors sit at bayous, ditches, and storm drains across Houston, backed by public USGS and Harris County Flood Warning System gauges. Every one of them reports in every few minutes, day or night, storm or clear sky.
See the full sensor networkOne score, normalized against real flood-stage thresholds
A raw reading in feet means nothing on its own. BayouWatch normalizes every gauge against its official NWS minor and major flood-stage thresholds into a single 0–100% capacity score, so a bayou at 42% means the same thing everywhere in the city.
How the model is builtFrom rising water to a text on your phone, fast
Live gauge trajectory and NOAA rainfall forecasts combine to project a 30–60 minute warning window before a street actually floods. Once a threshold is crossed, SMS, push, and email go out in the resident’s chosen language in under a minute.
Walk through the pipelineKnow your risk tier before the sirens do
Every neighborhood we cover is scored high, medium, or low risk based on flood history and proximity to a live gauge, so residents can see where they stand long before a storm is on the radar.
Open the coverage mapTested against a real storm, not a hypothetical
Our Harvey Simulation replays the actual 2017 rainfall and bayou-stage data through the same model powering live sensors today, so you can see exactly when BayouWatch would have warned each neighborhood.
Run the Harvey simulationEach sensor keeps reporting through grid and cell outages, the exact moments a storm knocks out power and a flood warning matters most.
Warnings are built from rate-of-rise and rainfall forecast, not a single snapshot reading, so residents get real time to move a car or leave a street.
Alerts go out in English, Spanish, Vietnamese, Chinese, or Arabic. Register a phone number and address — nothing else — and opt out anytime.
Sign up in under a minute
No app to install, no fees, no account beyond a phone number. Register once and BayouWatch watches the bayous near you for as long as you want the alerts.
- 01Enter your address so we know which gauges to watch for you.
- 02Pick a language — English, Spanish, Vietnamese, Chinese, or Arabic.
- 03Get texted 30–60 minutes before your street floods.