The storms blew out windows in high-rise buildings, felled trees, and cut electricity to roughly 900,000 Houston homes and businesses.
Mary Benton, chief of communications and senior assistant to the mayor, confirmed the four deaths.
Flash flood and severe thunderstorm warnings were issued for several counties, with damaging winds and perhaps tornadoes possible into the evening, according to Houston’s National Weather Service (NWS).
“If you are in the line of the storm, seek cover immediately. “Go to the lowest floor!” the NWS office wrote on social media.
Streets were flooded, and trees and electricity lines were fallen throughout the area.