Xavier Santos
Co-founder & CTO, WeatherWise Innovations
Xavier Santos is the co-founder and CTO of WeatherWise Innovations, the U.S. company behind ZoneWatch, and the engineer and designer behind the product. He builds the high-resolution radar, forecast models, and real-time lightning, hail, and flood detection that power its alerts, along with the iOS, Android, and web apps, and has founded and shipped several other software and AI products.
- Co-founder & CTO of WeatherWise Innovations
- Builds and designs the ZoneWatch apps and weather engine
- Leads engineering across iOS, Android, and web
- Built the in-house lightning network (250M+ U.S. events in 2025)
Articles by Xavier
What Makes a Weather App Accurate?
The four things that separate an accurate weather app from a guess.
Xavier · August 12, 2026 · 5 min
Weather Radar & Satellite Imagery, Explained
What radar and satellite each show, and which radar features matter.
Xavier · August 11, 2026 · 6 min
How to Track Lightning in Real Time
Lightning can be tracked strike by strike. Here’s how, and how to know when it’s heading your way.
Xavier · August 6, 2026 · 5 min
The Best Weather Radar App: What Actually Matters
A short checklist for judging any radar app, from resolution and refresh rate to future radar and lightning.
Xavier · August 4, 2026 · 6 min
How Far Away Is Lightning? The Flash-to-Bang Rule
Count the seconds, divide by five, and know when a storm is close enough to hurt you.
Xavier · July 30, 2026 · 11 min
How to Get Severe-Weather Alerts on Your Phone
The three real ways to get severe-weather warnings on your phone, how to switch them on, and why the safest setup uses more than one.
Xavier · July 28, 2026 · 11 min