Forecasters are warning South Texans about the potential for freezing weather overnight and into Wednesday morning across the area. The sub-freezing temperatures will impact a line from the Austin/San Antonio area to nearly Corpus Christi. Temperatures are expected to fall into the upper 20s overnight and remain there through 8:00 Wednesday morning. Forecasters are urging folks to make sure that they protect pipes, people, pets and plants for this freezing weather event across South Texas. Driving conditions should remain dry and favorable. However, drivers are being urged to use caution.