Abandoned vehicles littered submerged roads across South Texas’ Rio Grande Valley Thursday and Friday after over half year’s worth of rain - approaching a full year’s worth in some places - forced dozens of water rescues near the US-Mexico border.

South Texas is trying to dry out after severe thunderstorms flooded streets and had authorities conducting more than 50 water rescues as many drivers were forced to abandon their vehicles on roadways and parking lots as some areas were inundated with

Intense thunderstorms sweeping through the Rio Grande Valley unleashed flash floods across multiple counties in Texas late Thursday into Friday, with authorities warning residents to avoid low-lying areas.

Devastating flooding hit the Rio Grande Valley on Thursday after repeated rounds of thunderstorms dumped as much as a foot of rain in less than 48 hours.

Cars were submerged by floodwaters in McAllen, Texas, on Thursday, March 27, as severe thunderstorms brought heavy rain to the Rio Grande Valley in South Texas, triggering flash flooding. (Credit: TxD

More than 20 inches of rain — about a half-year’s worth — fell in some areas near the border on Thursday and Friday.

Streets were flooded Friday in a Mexican city across from Texas, after heavy downpours along the Mexico-U.S. border led to at least three deaths in Texas and one in Mexico.

Drenching rains along the Texas-Mexico border trapped hundreds of people in flooded homes and in cars stranded in high waters, scrambling rescue crews to calls for help that continued Friday even as the downpours let up.