Here's how often lightning strikes in Austin
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After multiple storms swept through Austin this week, we're looking at how often lightning strikes around Central Texas.
Why it matters: Aside from the immediate danger to people, aircraft and infrastructure, lightning can spark wildfires — and the number of strikes is predicted to increase amid climate change, researchers have found.
By the numbers: Texas is one of America's lightning capitals, as it's home to all of the top 10 U.S. counties ranked by lightning strikes per square mile in 2024, per weather data firm Vaisala Xweather.
- Walker County had about 825 strikes per square mile in 2024; Limestone County had 811; and Madison County had 795. All are along or close to I-45 between Houston and Dallas.
Yes, but: Things aren't as scary in Travis County, where there were about 145 strikes per square mile last year.
Reality check: Still, that's more than 150,000 strikes in Travis County in 2024.
- One strike caused a house fire in North Austin this month, per CBS Austin. No one was injured.
- Austin-area fire departments also responded to at least a pair of house fires sparked by lightning in a single night in March, per KXAN. No injuries were reported in those incidents, either.
Between the lines: Texas' lightning hotspot status isn't random — it's more prone to strikes as a result of consistent storms tied to its climate and geography.
How it works: Vaisala Xweather's data comes from sensors that use radio waves to detect and triangulate lightning strikes, with a claimed median accuracy of 84 meters (just under 300 feet).
- The data includes cloud-to-ground and in-cloud lightning.