Thunderstorms with multiple rounds of heavy rain were forecast in parts of Texas, the lower Mississippi Valley and the Ohio Valley beginning midweek and lasting through Saturday. Forecasters warned the storms could track over the same areas repeatedly and produce heavy rains and dangerous flash floods capable of sweeping cars away.

According to the Associated Press, another death was reported in the Mexican state of Tamaulipas, located near the U.S.-Mexico border — bringing the death toll up to at least four. The extreme rainfall also pummeled parts of northeastern Mexico, with the region seeing between 7 and 12 inches of rain, according to AP.