Over 6 inches of rain was recorded at San Antonio International Airport on Thursday, the highest one-day rainfall total since 2013.

SAN ANTONIO (AP) — Heavy rains in San Antonio rapidly flooded roads, swept away submerged cars and sent some people scrambling up trees to escape fast-rising waters Thursday while firefighters made dozens of rescues across the nation’s seventh-largest city. At least four people died and two were still missing, authorities said.

Four people have been reported dead in floodwaters in San Antonio, Texas, and widespread excessive rainfall could spell more danger of flash flooding across Southern Plains states and parts of the Upper Midwest,