
Lightning turned a quiet stretch of Spur 581 outside Pearsall into a chemical fire scene Tuesday evening, as an explosion and flames drew a heavy response from local fire crews and the Frio County Sheriff’s Office. Firefighters moved fast to contain the blaze, and authorities reported no injuries. The highway was later reopened once officials deemed the area secure.
Fire officials told reporters the blast was triggered by a lightning strike and said the resulting chemical fire was brought under control, according to WOAI. The station reported that multiple first responders converged on the scene near McKinney Airport in Pearsall as crews worked to knock down the flames.
Storms and lightning
The National Weather Service had issued tornado and severe thunderstorm warnings for parts of Frio County earlier in the afternoon as strong storms moved across the Pearsall area. NWS Austin/San Antonio advisories showed storms near Bluff and Pearsall featuring the kind of lightning that can spark fires in exposed locations.
Why chemicals raise concern
The stretch of Spur 581 just outside Pearsall is lined with farm-supply and chemical distributors, which raises the stakes when lightning hits nearby. Business directories list suppliers such as Wilbur-Ellis and Helena Chemical in the area, helping explain the rapid, multi-agency response. Dun & Bradstreet lists several agricultural suppliers clustered along the highway.
Roads and safety
Officials confirmed that Spur 581 has been reopened and is safe to drive after crews cleared the scene, according to WOAI. Drivers were urged to follow any remaining traffic controls while cleanup and monitoring continued.
Residents looking for official updates are encouraged to monitor the Frio County Sheriff’s Office and the National Weather Service for new advisories. The Frio County Sheriff's Office posts notices on its website and social media, while NWS Austin/San Antonio provides the latest safety bulletins and travel-related weather updates.









