A large part of South Texas is reeling from life-threatening flooding that began overnight and continued into Friday morning.

Severe storms dumped about half a year’s rainfall in two days, leading to flash floods across both sides of the border.

Intense thunderstorms sweeping through the Rio Grande Valley are unleashing unleashed flash floods across multiple counties in Texas late Thursday into Friday, with authorities warning residents to avoid low-lying areas where water catchment and poor drainage are possible.