A dramatic supercell thunderstorm erupted south of San Antonio, Texas, captured in stunning high-resolution satellite imagery.
Supercells are rare but dangerously powerful storms, capable of spawning large hail, destructive winds, and even tornadoes.
The National Weather Service has warned that more severe weather is on the way, with increased storm coverage and greater impact expected.
Threats include damaging wind gusts, very large hail, flash flooding, and the possibility of isolated tornadoes.