RainReady SA
A hyperlocal tropical rain tracker for San Antonio and South Texas that alerts residents minutes before heavy downpours hit their specific street, with neighborhood-level flood risk and a 'go inside now' push during 2+ inches-per-hour events.
San Antonio and South Texas residents dealing with sudden tropical downpours and flash flood risk
- Street-level rain alerts calibrated to your saved addresses (home, work, kids' school) using radar + ground stations
- Flood-zone overlay showing whether your routes are in low-water crossing areas
- Hour-by-hour 'best window' outlook for outdoor plans, deliveries, or commute
- Lightning and wind-gust warnings bundled with the rain alert so you get one clear 'go inside now' push
San Antonio is coming off a record-wet spring followed by an 18-day dry streak, and an incoming Gulf disturbance is about to bring tropical downpours back — exactly the rapid-flip weather pattern residents get caught off-guard by.
San Antonio sits in 'Flash Flood Alley' and 2025 is its deadliest flood year since 1998 with 13 deaths in a single summer storm plus 60+ high-water rescues, and Google Trends shows 100+ searches for 'san antonio weather'.San Antonio is having its deadliest flood year since the 1998 Great Flood. What's going on? ↗July 2025 Central Texas floods ↗
A $21M government-backed 'NextGen Flood Warning System' from Bexar County, City of San Antonio, and San Antonio River Authority is launching now with hyperlocal low-water crossing sensors and public push alerts — essentially a free, taxpayer-funded direct competitor — alongside RainViewer, MyRadar, WeatherBug, Weather Underground, and BEXARflood.org.NextGen: Bexar County approves flood warning system ↗$20M plan brings major flood alert system to San Antonio ↗San Antonio Rain Radar — Live Weather Map | RainViewer ↗
Weather apps monetize via freemium ($3-10/yr MyRadar/WeatherBug premium for ad-removal and hurricane layers), but a free government alert system plus NWS alerts makes charging residents for basic life-safety pushes a hard sell in a market where 13 recent deaths show people currently rely on default phones.Premium vs Free? : r/MyRadar ↗Weather Elite by WeatherBug ↗
Texas 'Flash Flood Alley' plus intensifying Gulf tropical activity and climate-driven extreme rainfall make flash flooding a recurring, decades-long structural problem, not a one-off news cycle.July 2025 Central Texas floods ↗
Building a street-level predictor requires combining NEXRAD radar, the new SARA gauge network, and ML to extrapolate rainfall to specific blocks — feasible with existing data APIs (MyRadar/IBM/NOAA) but non-trivial engineering, and the 'go inside now' trigger for 2+ in/hr is a thin wrapper on NWS polygon alerts that ship free today.MyRadar | Keeping you ahead of the storm ↗