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.
By Xavier Santos
Co-founder & CTO
You can track lightning in real time with an app that taps into lightning detection networks. These networks sense the radio energy each strike emits and pinpoint where it hit within seconds. The numbers to watch are the distance and bearing to the nearest strike. When they are closing in, it is time to get indoors.
How does lightning tracking work?
Every lightning strike emits a burst of radio energy. Ground-based sensor networks detect that burst from multiple stations and triangulate the exact location and time of the strike, usually within seconds and within a fraction of a mile.
A lightning tracker turns that feed into something you can act on: a live map of strikes, and for your location, the distance and direction to the closest one.
There’s a lot of lightning to follow. In 2025, ZoneWatch’s lightning system processed more than 250 million lightning events across the U.S., in-cloud and cloud-to-ground alike, each one pinpointed within seconds of the flash.
What to watch when you track lightning
Raw strike maps are interesting, but safety comes down to a few signals:
- Distance to nearest strike: The single most useful number. If it is dropping, the storm is coming to you.
- Bearing: Which direction strikes are relative to you, so you know if the storm will pass or hit.
- Trend: Strikes getting closer and more frequent means the storm is intensifying, so act early.
- Your alert radius: Set a 10-, 25-, or 50-mile zone so you are warned before strikes are overhead.
Tracking lightning with ZoneWatch
ZoneWatch tracks lightning per location in real time, updating every few minutes with the distance and bearing to the closest strike. You can set alerts for 10-, 25-, or 50-mile zones around each place you care about.
That means you are not staring at a map hoping to interpret it. You get a clear, location-specific heads-up while there is still time to move inside.
Frequently asked questions
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.
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Track lightning for every place that matters
Real-time strikes with distance and bearing to the nearest one.